Shareholder Report, Holdings (Details)
|
Mar. 31, 2026 |
| C000202747 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.60%
|
[1] |
| C000202747 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
[1] |
| C000202747 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.10%
|
[1] |
| C000202747 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.00%
|
[1] |
| C000202747 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.00%
|
[1] |
| C000202747 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
47.80%
|
[1] |
| C000202747 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.30%
|
[1] |
| C000202747 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000202747 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000202747 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.70%
|
|
| C000202747 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.30%
|
|
| C000202747 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000202747 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[2] |
| C000202747 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000202747 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000202747 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000202747 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000202747 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
29.90%
|
|
| C000033991 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.60%
|
[3] |
| C000033991 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
[3] |
| C000033991 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.10%
|
[3] |
| C000033991 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.00%
|
[3] |
| C000033991 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.00%
|
[3] |
| C000033991 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
47.80%
|
[3] |
| C000033991 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.30%
|
[3] |
| C000033991 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000033991 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000033991 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.70%
|
|
| C000033991 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.30%
|
|
| C000033991 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000033991 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[4] |
| C000033991 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000033991 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033991 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000033991 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000033991 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
29.90%
|
|
| C000014635 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.60%
|
[5] |
| C000014635 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
[5] |
| C000014635 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.10%
|
[5] |
| C000014635 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.00%
|
[5] |
| C000014635 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.00%
|
[5] |
| C000014635 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
47.80%
|
[5] |
| C000014635 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.30%
|
[5] |
| C000014635 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000014635 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000014635 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.70%
|
|
| C000014635 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.30%
|
|
| C000014635 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000014635 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[6] |
| C000014635 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000014635 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000014635 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000014635 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000014635 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
29.90%
|
|
| C000079556 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.60%
|
[7] |
| C000079556 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
[7] |
| C000079556 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.10%
|
[7] |
| C000079556 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.00%
|
[7] |
| C000079556 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.00%
|
[7] |
| C000079556 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
47.80%
|
[7] |
| C000079556 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.30%
|
[7] |
| C000079556 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000079556 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000079556 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.70%
|
|
| C000079556 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.30%
|
|
| C000079556 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000079556 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[8] |
| C000079556 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000079556 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000079556 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000079556 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000079556 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
29.90%
|
|
| C000162549 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.60%
|
[9] |
| C000162549 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
[9] |
| C000162549 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.10%
|
[9] |
| C000162549 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.00%
|
[9] |
| C000162549 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.00%
|
[9] |
| C000162549 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
47.80%
|
[9] |
| C000162549 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.30%
|
[9] |
| C000162549 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000162549 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000162549 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.70%
|
|
| C000162549 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.30%
|
|
| C000162549 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000162549 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[10] |
| C000162549 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000162549 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000162549 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000162549 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000162549 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
29.90%
|
|
| C000033992 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.60%
|
[11] |
| C000033992 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
[11] |
| C000033992 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.10%
|
[11] |
| C000033992 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.00%
|
[11] |
| C000033992 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.00%
|
[11] |
| C000033992 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
47.80%
|
[11] |
| C000033992 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.30%
|
[11] |
| C000033992 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000033992 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000033992 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.70%
|
|
| C000033992 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.30%
|
|
| C000033992 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000033992 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[12] |
| C000033992 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000033992 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033992 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000033992 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000033992 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
29.90%
|
|
| C000033995 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.10%
|
|
| C000033995 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.40%
|
|
| C000033995 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
|
| C000033995 [Member] | Short Term Variable Rate Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
30.30%
|
|
| C000162551 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.10%
|
|
| C000162551 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.40%
|
|
| C000162551 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
|
| C000162551 [Member] | Short Term Variable Rate Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
30.30%
|
|
| C000079558 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.10%
|
|
| C000079558 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.40%
|
|
| C000079558 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
|
| C000079558 [Member] | Short Term Variable Rate Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
30.30%
|
|
| C000014638 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.10%
|
|
| C000014638 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.40%
|
|
| C000014638 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
|
| C000014638 [Member] | Short Term Variable Rate Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
30.30%
|
|
| C000033994 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.10%
|
|
| C000033994 [Member] | Short Term Government Agency Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.40%
|
|
| C000033994 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
|
| C000033994 [Member] | Short Term Variable Rate Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
30.30%
|
|
| C000202755 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[13] |
| C000202755 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.30%
|
[13] |
| C000202755 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[13] |
| C000202755 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.80%
|
[13] |
| C000202755 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
[13] |
| C000202755 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
41.10%
|
[13] |
| C000202755 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
[13] |
| C000202755 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000202755 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000202755 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
21.90%
|
|
| C000202755 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
37.60%
|
|
| C000202755 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000202755 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000202755 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
39.00%
|
|
| C000033275 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[14] |
| C000033275 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.30%
|
[14] |
| C000033275 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[14] |
| C000033275 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.80%
|
[14] |
| C000033275 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
[14] |
| C000033275 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
41.10%
|
[14] |
| C000033275 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
[14] |
| C000033275 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000033275 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033275 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
21.90%
|
|
| C000033275 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
37.60%
|
|
| C000033275 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000033275 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000033275 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
39.00%
|
|
| C000033276 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[15] |
| C000033276 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.30%
|
[15] |
| C000033276 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[15] |
| C000033276 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.80%
|
[15] |
| C000033276 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
[15] |
| C000033276 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
41.10%
|
[15] |
| C000033276 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
[15] |
| C000033276 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000033276 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033276 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
21.90%
|
|
| C000033276 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
37.60%
|
|
| C000033276 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000033276 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000033276 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
39.00%
|
|
| C000079571 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[16] |
| C000079571 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.30%
|
[16] |
| C000079571 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[16] |
| C000079571 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.80%
|
[16] |
| C000079571 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
[16] |
| C000079571 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
41.10%
|
[16] |
| C000079571 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
[16] |
| C000079571 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000079571 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000079571 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
21.90%
|
|
| C000079571 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
37.60%
|
|
| C000079571 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000079571 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000079571 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
39.00%
|
|
| C000162566 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[17] |
| C000162566 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.30%
|
[17] |
| C000162566 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[17] |
| C000162566 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.80%
|
[17] |
| C000162566 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
[17] |
| C000162566 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
41.10%
|
[17] |
| C000162566 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
[17] |
| C000162566 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000162566 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000162566 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
21.90%
|
|
| C000162566 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
37.60%
|
|
| C000162566 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000162566 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000162566 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
39.00%
|
|
| C000033274 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[18] |
| C000033274 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.30%
|
[18] |
| C000033274 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[18] |
| C000033274 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.80%
|
[18] |
| C000033274 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.20%
|
[18] |
| C000033274 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
41.10%
|
[18] |
| C000033274 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
[18] |
| C000033274 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000033274 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033274 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
21.90%
|
|
| C000033274 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
37.60%
|
|
| C000033274 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000033274 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000033274 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
39.00%
|
|
| C000033277 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
93.10%
|
[19] |
| C000033277 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.20%
|
[19] |
| C000033277 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
[19] |
| C000033277 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[19] |
| C000033277 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[19] |
| C000033277 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000033277 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
|
| C000033277 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000033277 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033277 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000033277 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000033277 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
91.00%
|
|
| C000162567 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
93.10%
|
[20] |
| C000162567 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.20%
|
[20] |
| C000162567 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
[20] |
| C000162567 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[20] |
| C000162567 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[20] |
| C000162567 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000162567 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
|
| C000162567 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000162567 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000162567 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000162567 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000162567 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
91.00%
|
|
| C000079572 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
93.10%
|
[21] |
| C000079572 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.20%
|
[21] |
| C000079572 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
[21] |
| C000079572 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[21] |
| C000079572 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[21] |
| C000079572 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000079572 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
|
| C000079572 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000079572 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000079572 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000079572 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000079572 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
91.00%
|
|
| C000033279 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
93.10%
|
[22] |
| C000033279 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.20%
|
[22] |
| C000033279 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
[22] |
| C000033279 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[22] |
| C000033279 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[22] |
| C000033279 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000033279 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
|
| C000033279 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000033279 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033279 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000033279 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000033279 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
91.00%
|
|
| C000033278 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
93.10%
|
[23] |
| C000033278 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.20%
|
[23] |
| C000033278 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
[23] |
| C000033278 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[23] |
| C000033278 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[23] |
| C000033278 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000033278 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
|
| C000033278 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000033278 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033278 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000033278 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000033278 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
91.00%
|
|
| C000202756 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
93.10%
|
[24] |
| C000202756 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.20%
|
[24] |
| C000202756 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
[24] |
| C000202756 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[24] |
| C000202756 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[24] |
| C000202756 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000202756 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.30%
|
|
| C000202756 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000202756 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000202756 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
|
| C000202756 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000202756 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
91.00%
|
|
| C000202758 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[25] |
| C000202758 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
6.30%
|
[25] |
| C000202758 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.20%
|
[25] |
| C000202758 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.00%
|
[25] |
| C000202758 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.70%
|
[25] |
| C000202758 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.90%
|
[25] |
| C000202758 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.60%
|
[25] |
| C000202758 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000202758 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000202758 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.00%
|
|
| C000202758 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
40.90%
|
|
| C000202758 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.50%
|
[26] |
| C000202758 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000202758 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000202758 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000202758 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.20%
|
|
| C000202758 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
35.40%
|
|
| C000033284 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[27] |
| C000033284 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
6.30%
|
[27] |
| C000033284 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.20%
|
[27] |
| C000033284 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.00%
|
[27] |
| C000033284 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.70%
|
[27] |
| C000033284 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.90%
|
[27] |
| C000033284 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.60%
|
[27] |
| C000033284 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000033284 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000033284 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.00%
|
|
| C000033284 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
40.90%
|
|
| C000033284 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.50%
|
[28] |
| C000033284 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000033284 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033284 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000033284 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.20%
|
|
| C000033284 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
35.40%
|
|
| C000033285 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[29] |
| C000033285 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
6.30%
|
[29] |
| C000033285 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.20%
|
[29] |
| C000033285 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.00%
|
[29] |
| C000033285 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.70%
|
[29] |
| C000033285 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.90%
|
[29] |
| C000033285 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.60%
|
[29] |
| C000033285 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000033285 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000033285 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.00%
|
|
| C000033285 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
40.90%
|
|
| C000033285 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.50%
|
[30] |
| C000033285 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000033285 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033285 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000033285 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.20%
|
|
| C000033285 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
35.40%
|
|
| C000079574 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[31] |
| C000079574 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
6.30%
|
[31] |
| C000079574 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.20%
|
[31] |
| C000079574 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.00%
|
[31] |
| C000079574 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.70%
|
[31] |
| C000079574 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.90%
|
[31] |
| C000079574 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.60%
|
[31] |
| C000079574 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000079574 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000079574 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.00%
|
|
| C000079574 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
40.90%
|
|
| C000079574 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.50%
|
[32] |
| C000079574 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000079574 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000079574 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000079574 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.20%
|
|
| C000079574 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
35.40%
|
|
| C000162569 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[33] |
| C000162569 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
6.30%
|
[33] |
| C000162569 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.20%
|
[33] |
| C000162569 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.00%
|
[33] |
| C000162569 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.70%
|
[33] |
| C000162569 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.90%
|
[33] |
| C000162569 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.60%
|
[33] |
| C000162569 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000162569 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000162569 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.00%
|
|
| C000162569 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
40.90%
|
|
| C000162569 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.50%
|
[34] |
| C000162569 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000162569 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000162569 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000162569 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.20%
|
|
| C000162569 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
35.40%
|
|
| C000033283 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[35] |
| C000033283 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
6.30%
|
[35] |
| C000033283 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.20%
|
[35] |
| C000033283 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.00%
|
[35] |
| C000033283 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.70%
|
[35] |
| C000033283 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.90%
|
[35] |
| C000033283 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.60%
|
[35] |
| C000033283 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000033283 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000033283 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
15.00%
|
|
| C000033283 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
40.90%
|
|
| C000033283 [Member] | Investment companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.50%
|
[36] |
| C000033283 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000033283 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033283 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000033283 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.20%
|
|
| C000033283 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
35.40%
|
|
| C000033286 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[37] |
| C000033286 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[37] |
| C000033286 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.10%
|
[37] |
| C000033286 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
27.60%
|
[37] |
| C000033286 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
54.70%
|
[37] |
| C000033286 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.30%
|
[37] |
| C000033286 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
99.40%
|
|
| C000033286 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000033286 [Member] | Rights Warrants [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000162570 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[38] |
| C000162570 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[38] |
| C000162570 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.10%
|
[38] |
| C000162570 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
27.60%
|
[38] |
| C000162570 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
54.70%
|
[38] |
| C000162570 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.30%
|
[38] |
| C000162570 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
99.40%
|
|
| C000162570 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000162570 [Member] | Rights Warrants [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000033287 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[39] |
| C000033287 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[39] |
| C000033287 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.10%
|
[39] |
| C000033287 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
27.60%
|
[39] |
| C000033287 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
54.70%
|
[39] |
| C000033287 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.30%
|
[39] |
| C000033287 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
99.40%
|
|
| C000033287 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000033287 [Member] | Rights Warrants [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000202762 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.90%
|
[40] |
| C000202762 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.70%
|
[40] |
| C000202762 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.80%
|
[40] |
| C000202762 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.00%
|
[40] |
| C000202762 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
71.60%
|
[40] |
| C000202762 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[40] |
| C000202762 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000202762 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000202762 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.40%
|
|
| C000202762 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
70.40%
|
|
| C000202762 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.90%
|
|
| C000202762 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.40%
|
|
| C000079523 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.90%
|
[41] |
| C000079523 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.70%
|
[41] |
| C000079523 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.80%
|
[41] |
| C000079523 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.00%
|
[41] |
| C000079523 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
71.60%
|
[41] |
| C000079523 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[41] |
| C000079523 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000079523 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000079523 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.40%
|
|
| C000079523 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
70.40%
|
|
| C000079523 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.90%
|
|
| C000079523 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.40%
|
|
| C000079524 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.90%
|
[42] |
| C000079524 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.70%
|
[42] |
| C000079524 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.80%
|
[42] |
| C000079524 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.00%
|
[42] |
| C000079524 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
71.60%
|
[42] |
| C000079524 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[42] |
| C000079524 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000079524 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000079524 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.40%
|
|
| C000079524 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
70.40%
|
|
| C000079524 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.90%
|
|
| C000079524 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.40%
|
|
| C000079525 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.90%
|
[43] |
| C000079525 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.70%
|
[43] |
| C000079525 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.80%
|
[43] |
| C000079525 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.00%
|
[43] |
| C000079525 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
71.60%
|
[43] |
| C000079525 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[43] |
| C000079525 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000079525 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000079525 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.40%
|
|
| C000079525 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
70.40%
|
|
| C000079525 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.90%
|
|
| C000079525 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.40%
|
|
| C000162579 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.90%
|
[44] |
| C000162579 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.70%
|
[44] |
| C000162579 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.80%
|
[44] |
| C000162579 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.00%
|
[44] |
| C000162579 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
71.60%
|
[44] |
| C000162579 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[44] |
| C000162579 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000162579 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000162579 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.40%
|
|
| C000162579 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
70.40%
|
|
| C000162579 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.90%
|
|
| C000162579 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.40%
|
|
| C000079526 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.90%
|
[45] |
| C000079526 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.70%
|
[45] |
| C000079526 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.80%
|
[45] |
| C000079526 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.00%
|
[45] |
| C000079526 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
71.60%
|
[45] |
| C000079526 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
[45] |
| C000079526 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000079526 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000079526 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.40%
|
|
| C000079526 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
70.40%
|
|
| C000079526 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.90%
|
|
| C000079526 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.40%
|
|
| C000117723 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.00%
|
[46] |
| C000117723 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.10%
|
[46] |
| C000117723 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.60%
|
[46] |
| C000117723 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[46] |
| C000117723 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.70%
|
[46] |
| C000117723 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
52.60%
|
[46] |
| C000117723 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.30%
|
[46] |
| C000117723 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000117723 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.40%
|
|
| C000117723 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.50%
|
|
| C000117723 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
55.00%
|
|
| C000117723 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000117723 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000117723 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000117723 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
30.10%
|
|
| C000162598 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.00%
|
[47] |
| C000162598 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.10%
|
[47] |
| C000162598 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.60%
|
[47] |
| C000162598 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[47] |
| C000162598 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.70%
|
[47] |
| C000162598 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
52.60%
|
[47] |
| C000162598 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.30%
|
[47] |
| C000162598 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000162598 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.40%
|
|
| C000162598 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.50%
|
|
| C000162598 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
55.00%
|
|
| C000162598 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000162598 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000162598 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000162598 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
30.10%
|
|
| C000117722 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.00%
|
[48] |
| C000117722 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.10%
|
[48] |
| C000117722 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.60%
|
[48] |
| C000117722 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[48] |
| C000117722 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.70%
|
[48] |
| C000117722 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
52.60%
|
[48] |
| C000117722 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.30%
|
[48] |
| C000117722 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000117722 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.40%
|
|
| C000117722 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.50%
|
|
| C000117722 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
55.00%
|
|
| C000117722 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000117722 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000117722 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000117722 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
30.10%
|
|
| C000117721 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.00%
|
[49] |
| C000117721 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.10%
|
[49] |
| C000117721 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.60%
|
[49] |
| C000117721 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[49] |
| C000117721 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.70%
|
[49] |
| C000117721 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
52.60%
|
[49] |
| C000117721 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.30%
|
[49] |
| C000117721 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000117721 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.40%
|
|
| C000117721 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.50%
|
|
| C000117721 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
55.00%
|
|
| C000117721 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000117721 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000117721 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000117721 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
30.10%
|
|
| C000117724 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.00%
|
[50] |
| C000117724 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
12.10%
|
[50] |
| C000117724 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.60%
|
[50] |
| C000117724 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[50] |
| C000117724 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
13.70%
|
[50] |
| C000117724 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
52.60%
|
[50] |
| C000117724 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.30%
|
[50] |
| C000117724 [Member] | Short Term Treasury Debt [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000117724 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.40%
|
|
| C000117724 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.50%
|
|
| C000117724 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
55.00%
|
|
| C000117724 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000117724 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.20%
|
|
| C000117724 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000117724 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
30.10%
|
|
| C000202767 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.50%
|
[51] |
| C000202767 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[51] |
| C000202767 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.40%
|
[51] |
| C000202767 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.50%
|
[51] |
| C000202767 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
75.00%
|
[51] |
| C000202767 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[51] |
| C000202767 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000202767 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000202767 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
74.60%
|
|
| C000202767 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000202767 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.90%
|
|
| C000158753 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.50%
|
[52] |
| C000158753 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[52] |
| C000158753 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.40%
|
[52] |
| C000158753 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.50%
|
[52] |
| C000158753 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
75.00%
|
[52] |
| C000158753 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[52] |
| C000158753 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000158753 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000158753 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
74.60%
|
|
| C000158753 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000158753 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.90%
|
|
| C000158750 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.50%
|
[53] |
| C000158750 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[53] |
| C000158750 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.40%
|
[53] |
| C000158750 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.50%
|
[53] |
| C000158750 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
75.00%
|
[53] |
| C000158750 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[53] |
| C000158750 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000158750 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000158750 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
74.60%
|
|
| C000158750 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000158750 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.90%
|
|
| C000158751 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.50%
|
[54] |
| C000158751 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[54] |
| C000158751 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.40%
|
[54] |
| C000158751 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.50%
|
[54] |
| C000158751 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
75.00%
|
[54] |
| C000158751 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[54] |
| C000158751 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000158751 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000158751 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
74.60%
|
|
| C000158751 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000158751 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.90%
|
|
| C000162603 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.50%
|
[55] |
| C000162603 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[55] |
| C000162603 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.40%
|
[55] |
| C000162603 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.50%
|
[55] |
| C000162603 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
75.00%
|
[55] |
| C000162603 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[55] |
| C000162603 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000162603 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000162603 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
74.60%
|
|
| C000162603 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000162603 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.90%
|
|
| C000158752 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.50%
|
[56] |
| C000158752 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.50%
|
[56] |
| C000158752 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.40%
|
[56] |
| C000158752 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.50%
|
[56] |
| C000158752 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
75.00%
|
[56] |
| C000158752 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[56] |
| C000158752 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000158752 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.00%
|
|
| C000158752 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
74.60%
|
|
| C000158752 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000158752 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.90%
|
|
| C000205813 [Member] | Supranational [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
|
| C000205813 [Member] | Other [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
|
| C000205813 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.70%
|
[57] |
| C000205813 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.80%
|
[57] |
| C000205813 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
[57] |
| C000205813 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.50%
|
[57] |
| C000205813 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.50%
|
[57] |
| C000205813 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.50%
|
[57] |
| C000205813 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.60%
|
[57] |
| C000205813 [Member] | CANADA |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000205813 [Member] | ECUADOR |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
|
| C000205813 [Member] | GERMANY |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
|
| C000205813 [Member] | IRELAND |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.00%
|
|
| C000205813 [Member] | MEXICO |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205813 [Member] | UNITED ARAB EMIRATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
|
| C000205813 [Member] | UNITED KINGDOM |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000205813 [Member] | UNITED STATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
73.50%
|
|
| C000205813 [Member] | TÜRKIYE |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205813 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
|
| C000205813 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
14.20%
|
|
| C000205813 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
20.70%
|
|
| C000205813 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000205813 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205813 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
|
| C000205813 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
61.50%
|
|
| C000205815 [Member] | Supranational [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
|
| C000205815 [Member] | Other [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
|
| C000205815 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.70%
|
[58] |
| C000205815 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.80%
|
[58] |
| C000205815 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
[58] |
| C000205815 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.50%
|
[58] |
| C000205815 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.50%
|
[58] |
| C000205815 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.50%
|
[58] |
| C000205815 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.60%
|
[58] |
| C000205815 [Member] | CANADA |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000205815 [Member] | ECUADOR |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
|
| C000205815 [Member] | GERMANY |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
|
| C000205815 [Member] | IRELAND |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.00%
|
|
| C000205815 [Member] | MEXICO |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205815 [Member] | UNITED ARAB EMIRATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
|
| C000205815 [Member] | UNITED KINGDOM |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000205815 [Member] | UNITED STATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
73.50%
|
|
| C000205815 [Member] | TÜRKIYE |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205815 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
|
| C000205815 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
14.20%
|
|
| C000205815 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
20.70%
|
|
| C000205815 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000205815 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205815 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
|
| C000205815 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
61.50%
|
|
| C000205812 [Member] | Supranational [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
|
| C000205812 [Member] | Other [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
|
| C000205812 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.70%
|
[59] |
| C000205812 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.80%
|
[59] |
| C000205812 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
[59] |
| C000205812 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.50%
|
[59] |
| C000205812 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.50%
|
[59] |
| C000205812 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.50%
|
[59] |
| C000205812 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.60%
|
[59] |
| C000205812 [Member] | CANADA |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000205812 [Member] | ECUADOR |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
|
| C000205812 [Member] | GERMANY |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
|
| C000205812 [Member] | IRELAND |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.00%
|
|
| C000205812 [Member] | MEXICO |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205812 [Member] | UNITED ARAB EMIRATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
|
| C000205812 [Member] | UNITED KINGDOM |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000205812 [Member] | UNITED STATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
73.50%
|
|
| C000205812 [Member] | TÜRKIYE |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205812 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
|
| C000205812 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
14.20%
|
|
| C000205812 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
20.70%
|
|
| C000205812 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000205812 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205812 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
|
| C000205812 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
61.50%
|
|
| C000205811 [Member] | Supranational [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
|
| C000205811 [Member] | Other [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
|
| C000205811 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.70%
|
[60] |
| C000205811 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.80%
|
[60] |
| C000205811 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
[60] |
| C000205811 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.50%
|
[60] |
| C000205811 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.50%
|
[60] |
| C000205811 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.50%
|
[60] |
| C000205811 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.60%
|
[60] |
| C000205811 [Member] | CANADA |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000205811 [Member] | ECUADOR |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
|
| C000205811 [Member] | GERMANY |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
|
| C000205811 [Member] | IRELAND |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.00%
|
|
| C000205811 [Member] | MEXICO |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205811 [Member] | UNITED ARAB EMIRATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
|
| C000205811 [Member] | UNITED KINGDOM |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000205811 [Member] | UNITED STATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
73.50%
|
|
| C000205811 [Member] | TÜRKIYE |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205811 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
|
| C000205811 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
14.20%
|
|
| C000205811 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
20.70%
|
|
| C000205811 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000205811 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205811 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
|
| C000205811 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
61.50%
|
|
| C000205814 [Member] | Supranational [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.20%
|
|
| C000205814 [Member] | Other [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.10%
|
|
| C000205814 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.70%
|
[61] |
| C000205814 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.80%
|
[61] |
| C000205814 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
[61] |
| C000205814 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.50%
|
[61] |
| C000205814 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
25.50%
|
[61] |
| C000205814 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
23.50%
|
[61] |
| C000205814 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.60%
|
[61] |
| C000205814 [Member] | CANADA |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.30%
|
|
| C000205814 [Member] | ECUADOR |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
|
| C000205814 [Member] | GERMANY |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
|
| C000205814 [Member] | IRELAND |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.00%
|
|
| C000205814 [Member] | MEXICO |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205814 [Member] | UNITED ARAB EMIRATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
|
| C000205814 [Member] | UNITED KINGDOM |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.70%
|
|
| C000205814 [Member] | UNITED STATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
73.50%
|
|
| C000205814 [Member] | TÜRKIYE |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205814 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
|
| C000205814 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
14.20%
|
|
| C000205814 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
20.70%
|
|
| C000205814 [Member] | Preferred Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
|
| C000205814 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205814 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
|
| C000205814 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
61.50%
|
|
| C000205819 [Member] | Supranational [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.70%
|
|
| C000205819 [Member] | Other [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205819 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.40%
|
[62] |
| C000205819 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.40%
|
[62] |
| C000205819 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[62] |
| C000205819 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.70%
|
[62] |
| C000205819 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.10%
|
[62] |
| C000205819 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.10%
|
[62] |
| C000205819 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.40%
|
[62] |
| C000205819 [Member] | CANADA |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.40%
|
|
| C000205819 [Member] | UNITED ARAB EMIRATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205819 [Member] | UNITED KINGDOM |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
|
| C000205819 [Member] | UNITED STATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
66.80%
|
|
| C000205819 [Member] | SWEDEN |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000205819 [Member] | NETHERLANDS |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205819 [Member] | KOREA, REPUBLIC OF |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000205819 [Member] | JAPAN |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205819 [Member] | FRANCE |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.30%
|
|
| C000205819 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000205819 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.80%
|
|
| C000205819 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
32.80%
|
|
| C000205819 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
|
| C000205819 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000205819 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
54.60%
|
|
| C000205816 [Member] | Supranational [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.70%
|
|
| C000205816 [Member] | Other [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205816 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.40%
|
[63] |
| C000205816 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.40%
|
[63] |
| C000205816 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[63] |
| C000205816 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.70%
|
[63] |
| C000205816 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.10%
|
[63] |
| C000205816 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.10%
|
[63] |
| C000205816 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.40%
|
[63] |
| C000205816 [Member] | CANADA |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.40%
|
|
| C000205816 [Member] | UNITED ARAB EMIRATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205816 [Member] | UNITED KINGDOM |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
|
| C000205816 [Member] | UNITED STATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
66.80%
|
|
| C000205816 [Member] | SWEDEN |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000205816 [Member] | NETHERLANDS |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205816 [Member] | KOREA, REPUBLIC OF |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000205816 [Member] | JAPAN |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205816 [Member] | FRANCE |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.30%
|
|
| C000205816 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000205816 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.80%
|
|
| C000205816 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
32.80%
|
|
| C000205816 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
|
| C000205816 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000205816 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
54.60%
|
|
| C000205817 [Member] | Supranational [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.70%
|
|
| C000205817 [Member] | Other [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205817 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.40%
|
[64] |
| C000205817 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.40%
|
[64] |
| C000205817 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[64] |
| C000205817 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.70%
|
[64] |
| C000205817 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.10%
|
[64] |
| C000205817 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.10%
|
[64] |
| C000205817 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.40%
|
[64] |
| C000205817 [Member] | CANADA |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.40%
|
|
| C000205817 [Member] | UNITED ARAB EMIRATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205817 [Member] | UNITED KINGDOM |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
|
| C000205817 [Member] | UNITED STATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
66.80%
|
|
| C000205817 [Member] | SWEDEN |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000205817 [Member] | NETHERLANDS |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205817 [Member] | KOREA, REPUBLIC OF |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000205817 [Member] | JAPAN |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205817 [Member] | FRANCE |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.30%
|
|
| C000205817 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000205817 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.80%
|
|
| C000205817 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
32.80%
|
|
| C000205817 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
|
| C000205817 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000205817 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
54.60%
|
|
| C000205820 [Member] | Supranational [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.70%
|
|
| C000205820 [Member] | Other [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205820 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.40%
|
[65] |
| C000205820 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.40%
|
[65] |
| C000205820 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[65] |
| C000205820 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.70%
|
[65] |
| C000205820 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.10%
|
[65] |
| C000205820 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.10%
|
[65] |
| C000205820 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.40%
|
[65] |
| C000205820 [Member] | CANADA |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.40%
|
|
| C000205820 [Member] | UNITED ARAB EMIRATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205820 [Member] | UNITED KINGDOM |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
|
| C000205820 [Member] | UNITED STATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
66.80%
|
|
| C000205820 [Member] | SWEDEN |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000205820 [Member] | NETHERLANDS |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205820 [Member] | KOREA, REPUBLIC OF |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000205820 [Member] | JAPAN |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205820 [Member] | FRANCE |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.30%
|
|
| C000205820 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000205820 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.80%
|
|
| C000205820 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
32.80%
|
|
| C000205820 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
|
| C000205820 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000205820 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
54.60%
|
|
| C000205818 [Member] | Supranational [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
16.70%
|
|
| C000205818 [Member] | Other [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
|
| C000205818 [Member] | BB or Lower [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.40%
|
[66] |
| C000205818 [Member] | Moody's, Aaa Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
22.40%
|
[66] |
| C000205818 [Member] | N A not applicable [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
[66] |
| C000205818 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
11.70%
|
[66] |
| C000205818 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
19.10%
|
[66] |
| C000205818 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
36.10%
|
[66] |
| C000205818 [Member] | N R not rated [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
4.40%
|
[66] |
| C000205818 [Member] | CANADA |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
8.40%
|
|
| C000205818 [Member] | UNITED ARAB EMIRATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205818 [Member] | UNITED KINGDOM |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
|
| C000205818 [Member] | UNITED STATES |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
66.80%
|
|
| C000205818 [Member] | SWEDEN |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.40%
|
|
| C000205818 [Member] | NETHERLANDS |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205818 [Member] | KOREA, REPUBLIC OF |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.80%
|
|
| C000205818 [Member] | JAPAN |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.30%
|
|
| C000205818 [Member] | FRANCE |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
3.30%
|
|
| C000205818 [Member] | Investments Purchased with Collateral from Securities Lending [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
|
| C000205818 [Member] | Structured Assets [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.80%
|
|
| C000205818 [Member] | Government Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
32.80%
|
|
| C000205818 [Member] | Repurchase Agreements [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
2.90%
|
|
| C000205818 [Member] | Bank Loan Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
|
| C000205818 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
54.60%
|
|
|
|