Shareholder Report, Holdings (Details)
|
Mar. 31, 2026 |
| C000011391 [Member] | N R [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.70%
|
[1],[2] |
| C000011391 [Member] | Standard & Poor's, CC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[1],[2] |
| C000011391 [Member] | Standard & Poor's, CCC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[1],[2] |
| C000011391 [Member] | Standard & Poor's, B Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[1],[2] |
| C000011391 [Member] | Standard & Poor's, BB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
[1],[2] |
| C000011391 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.00%
|
[1],[2] |
| C000011391 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.10%
|
[1],[2] |
| C000011391 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
[1],[2] |
| C000011391 [Member] | Standard & Poor's, AAA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
63.30%
|
[1],[2],[3] |
| C000011391 [Member] | Foreign Agency Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[1] |
| C000011391 [Member] | Fixed Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[1] |
| C000011391 [Member] | Preferred Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
[1] |
| C000011391 [Member] | Investment Companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
[1] |
| C000011391 [Member] | Floating Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.20%
|
[1] |
| C000011391 [Member] | Foreign Government Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
[1] |
| C000011391 [Member] | U S Treasury Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.90%
|
[1] |
| C000011391 [Member] | Non Agency Mortgage Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[1] |
| C000011391 [Member] | U S Government Sponsored Agency Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.00%
|
[1] |
| C000011391 [Member] | Asset-Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.10%
|
[1] |
| C000011391 [Member] | Warrant [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
|
[1],[4] |
| C000011391 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[1] |
| C000011391 [Member] | Municipal Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[1] |
| C000011391 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[1] |
| C000052631 [Member] | N R [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.70%
|
[5],[6] |
| C000052631 [Member] | Standard & Poor's, CC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[5],[6] |
| C000052631 [Member] | Standard & Poor's, CCC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[5],[6] |
| C000052631 [Member] | Standard & Poor's, B Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[5],[6] |
| C000052631 [Member] | Standard & Poor's, BB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
[5],[6] |
| C000052631 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.00%
|
[5],[6] |
| C000052631 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.10%
|
[5],[6] |
| C000052631 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
[5],[6] |
| C000052631 [Member] | Standard & Poor's, AAA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
63.30%
|
[5],[6],[7] |
| C000052631 [Member] | Foreign Agency Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[5] |
| C000052631 [Member] | Fixed Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[5] |
| C000052631 [Member] | Preferred Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
[5] |
| C000052631 [Member] | Investment Companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
[5] |
| C000052631 [Member] | Floating Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.20%
|
[5] |
| C000052631 [Member] | Foreign Government Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
[5] |
| C000052631 [Member] | U S Treasury Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.90%
|
[5] |
| C000052631 [Member] | Non Agency Mortgage Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[5] |
| C000052631 [Member] | U S Government Sponsored Agency Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.00%
|
[5] |
| C000052631 [Member] | Asset-Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.10%
|
[5] |
| C000052631 [Member] | Warrant [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
|
[5],[8] |
| C000052631 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[5] |
| C000052631 [Member] | Municipal Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[5] |
| C000052631 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[5] |
| C000037620 [Member] | N R [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.70%
|
[9],[10] |
| C000037620 [Member] | Standard & Poor's, CC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[9],[10] |
| C000037620 [Member] | Standard & Poor's, CCC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[9],[10] |
| C000037620 [Member] | Standard & Poor's, B Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[9],[10] |
| C000037620 [Member] | Standard & Poor's, BB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
[9],[10] |
| C000037620 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.00%
|
[9],[10] |
| C000037620 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.10%
|
[9],[10] |
| C000037620 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
[9],[10] |
| C000037620 [Member] | Standard & Poor's, AAA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
63.30%
|
[9],[10],[11] |
| C000037620 [Member] | Foreign Agency Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[9] |
| C000037620 [Member] | Fixed Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[9] |
| C000037620 [Member] | Preferred Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
[9] |
| C000037620 [Member] | Investment Companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
[9] |
| C000037620 [Member] | Floating Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.20%
|
[9] |
| C000037620 [Member] | Foreign Government Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
[9] |
| C000037620 [Member] | U S Treasury Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.90%
|
[9] |
| C000037620 [Member] | Non Agency Mortgage Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[9] |
| C000037620 [Member] | U S Government Sponsored Agency Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.00%
|
[9] |
| C000037620 [Member] | Asset-Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.10%
|
[9] |
| C000037620 [Member] | Warrant [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
|
[9],[12] |
| C000037620 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[9] |
| C000037620 [Member] | Municipal Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[9] |
| C000037620 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[9] |
| C000037618 [Member] | N R [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.70%
|
[13],[14] |
| C000037618 [Member] | Standard & Poor's, CC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[13],[14] |
| C000037618 [Member] | Standard & Poor's, CCC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[13],[14] |
| C000037618 [Member] | Standard & Poor's, B Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[13],[14] |
| C000037618 [Member] | Standard & Poor's, BB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
[13],[14] |
| C000037618 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.00%
|
[13],[14] |
| C000037618 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.10%
|
[13],[14] |
| C000037618 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
[13],[14] |
| C000037618 [Member] | Standard & Poor's, AAA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
63.30%
|
[13],[14],[15] |
| C000037618 [Member] | Foreign Agency Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[13] |
| C000037618 [Member] | Fixed Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[13] |
| C000037618 [Member] | Preferred Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
[13] |
| C000037618 [Member] | Investment Companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
[13] |
| C000037618 [Member] | Floating Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.20%
|
[13] |
| C000037618 [Member] | Foreign Government Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
[13] |
| C000037618 [Member] | U S Treasury Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.90%
|
[13] |
| C000037618 [Member] | Non Agency Mortgage Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[13] |
| C000037618 [Member] | U S Government Sponsored Agency Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.00%
|
[13] |
| C000037618 [Member] | Asset-Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.10%
|
[13] |
| C000037618 [Member] | Warrant [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
|
[13],[16] |
| C000037618 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[13] |
| C000037618 [Member] | Municipal Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[13] |
| C000037618 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[13] |
| C000011387 [Member] | N R [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.70%
|
[17],[18] |
| C000011387 [Member] | Standard & Poor's, CC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[17],[18] |
| C000011387 [Member] | Standard & Poor's, CCC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[17],[18] |
| C000011387 [Member] | Standard & Poor's, B Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[17],[18] |
| C000011387 [Member] | Standard & Poor's, BB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
[17],[18] |
| C000011387 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.00%
|
[17],[18] |
| C000011387 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.10%
|
[17],[18] |
| C000011387 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
[17],[18] |
| C000011387 [Member] | Standard & Poor's, AAA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
63.30%
|
[17],[18],[19] |
| C000011387 [Member] | Foreign Agency Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[17] |
| C000011387 [Member] | Fixed Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[17] |
| C000011387 [Member] | Preferred Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
[17] |
| C000011387 [Member] | Investment Companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
[17] |
| C000011387 [Member] | Floating Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.20%
|
[17] |
| C000011387 [Member] | Foreign Government Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
[17] |
| C000011387 [Member] | U S Treasury Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.90%
|
[17] |
| C000011387 [Member] | Non Agency Mortgage Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[17] |
| C000011387 [Member] | U S Government Sponsored Agency Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.00%
|
[17] |
| C000011387 [Member] | Asset-Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.10%
|
[17] |
| C000011387 [Member] | Warrant [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
|
[17],[20] |
| C000011387 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[17] |
| C000011387 [Member] | Municipal Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[17] |
| C000011387 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[17] |
| C000052630 [Member] | N R [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.70%
|
[21],[22] |
| C000052630 [Member] | Standard & Poor's, CC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[21],[22] |
| C000052630 [Member] | Standard & Poor's, CCC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[21],[22] |
| C000052630 [Member] | Standard & Poor's, B Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[21],[22] |
| C000052630 [Member] | Standard & Poor's, BB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
[21],[22] |
| C000052630 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.00%
|
[21],[22] |
| C000052630 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.10%
|
[21],[22] |
| C000052630 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
[21],[22] |
| C000052630 [Member] | Standard & Poor's, AAA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
63.30%
|
[21],[22],[23] |
| C000052630 [Member] | Foreign Agency Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[21] |
| C000052630 [Member] | Fixed Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[21] |
| C000052630 [Member] | Preferred Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
[21] |
| C000052630 [Member] | Investment Companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
[21] |
| C000052630 [Member] | Floating Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.20%
|
[21] |
| C000052630 [Member] | Foreign Government Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
[21] |
| C000052630 [Member] | U S Treasury Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.90%
|
[21] |
| C000052630 [Member] | Non Agency Mortgage Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[21] |
| C000052630 [Member] | U S Government Sponsored Agency Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.00%
|
[21] |
| C000052630 [Member] | Asset-Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.10%
|
[21] |
| C000052630 [Member] | Warrant [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
|
[21],[24] |
| C000052630 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[21] |
| C000052630 [Member] | Municipal Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[21] |
| C000052630 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[21] |
| C000011390 [Member] | N R [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.70%
|
[25],[26] |
| C000011390 [Member] | Standard & Poor's, CC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[25],[26] |
| C000011390 [Member] | Standard & Poor's, CCC Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.60%
|
[25],[26] |
| C000011390 [Member] | Standard & Poor's, B Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[25],[26] |
| C000011390 [Member] | Standard & Poor's, BB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.90%
|
[25],[26] |
| C000011390 [Member] | Standard & Poor's, BBB Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.00%
|
[25],[26] |
| C000011390 [Member] | Standard & Poor's, A Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
5.10%
|
[25],[26] |
| C000011390 [Member] | Standard & Poor's, AA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.80%
|
[25],[26] |
| C000011390 [Member] | Standard & Poor's, AAA Rating [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
63.30%
|
[25],[26],[27] |
| C000011390 [Member] | Foreign Agency Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[25] |
| C000011390 [Member] | Fixed Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.10%
|
[25] |
| C000011390 [Member] | Preferred Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.00%
|
[25] |
| C000011390 [Member] | Investment Companies [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.10%
|
[25] |
| C000011390 [Member] | Floating Rate Loan Interests [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.20%
|
[25] |
| C000011390 [Member] | Foreign Government Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
1.60%
|
[25] |
| C000011390 [Member] | U S Treasury Obligations [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
7.90%
|
[25] |
| C000011390 [Member] | Non Agency Mortgage Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
10.70%
|
[25] |
| C000011390 [Member] | U S Government Sponsored Agency Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
49.00%
|
[25] |
| C000011390 [Member] | Asset-Backed Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
9.10%
|
[25] |
| C000011390 [Member] | Warrant [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
|
[25],[28] |
| C000011390 [Member] | Common Stock [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.50%
|
[25] |
| C000011390 [Member] | Municipal Bonds [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
0.40%
|
[25] |
| C000011390 [Member] | Corporate Bond Securities [Member] |
|
|
| Holdings [Line Items] |
|
|
| Percent of Total Investments |
17.30%
|
[25] |
|
|