Shareholder Report, Holdings (Details)
|
Feb. 28, 2025 |
| C000219740 | U.S. Treasury Bills, , 03/18/2025, 4.263 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
11.40%
|
| C000219740 | U.S. Treasury Bills, , 03/11/2025, 4.268 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
10.60%
|
| C000219740 | U.S. Treasury Bills, , 04/08/2025, 4.268 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
10.60%
|
| C000219740 | U.S. Treasury Bills, , 04/15/2025, 4.268 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
10.10%
|
| C000219740 | U.S. Treasury Bills, , 03/04/2025, 4.266 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
9.30%
|
| C000219740 | U.S. Treasury Bills, , 04/29/2025, 4.322 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
8.90%
|
| C000219740 | U.S. Treasury Bills, , 04/01/2025, 4.148 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
8.80%
|
| C000219740 | U.S. Treasury Bills, , 04/03/2025, 4.278 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.70%
|
| C000219740 | U.S. Treasury Bills, , 03/25/2025, 4.275 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.00%
|
| C000219740 | U.S. Treasury Bills, , 03/06/2025, 4.406 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.00%
|
| C000219740 | 0-1 Year |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
100.00%
|
| C000012087 | U.S. Treasury Notes, , 05/31/2026, 0.75 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.50%
|
| C000012087 | U.S. Treasury Notes, , 01/15/2027, 4 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.40%
|
| C000012087 | U.S. Treasury Notes, , 03/15/2027, 4.25 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.20%
|
| C000012087 | U.S. Treasury Notes, , 05/15/2027, 4.5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.90%
|
| C000012087 | U.S. Treasury Notes, , 07/31/2026, 4.375 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.90%
|
| C000012087 | U.S. Treasury Notes, , 04/15/2026, 3.75 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.80%
|
| C000012087 | U.S. Treasury Notes, , 05/15/2026, 3.625 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.70%
|
| C000012087 | U.S. Treasury Notes, , 06/15/2027, 4.625 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.70%
|
| C000012087 | U.S. Treasury Notes, , 04/15/2027, 4.5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.60%
|
| C000012087 | U.S. Treasury Notes, , 08/31/2026, 0.75 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.60%
|
| C000012087 | 0-1 Year |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.20%
|
| C000012087 | 1-2 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
53.00%
|
| C000012087 | 2-3 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
45.80%
|
| C000037537 | U.S. Treasury Notes, , 02/15/2029, 2.625 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.10%
|
| C000037537 | U.S. Treasury Notes, , 10/31/2028, 1.375 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.70%
|
| C000037537 | U.S. Treasury Notes, , 11/30/2030, 4.375 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.60%
|
| C000037537 | U.S. Treasury Notes, , 09/30/2028, 1.25 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.40%
|
| C000037537 | U.S. Treasury Notes, , 07/31/2028, 1 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.20%
|
| C000037537 | U.S. Treasury Notes, , 08/15/2028, 2.875 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.10%
|
| C000037537 | U.S. Treasury Notes, , 05/15/2029, 2.375 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.90%
|
| C000037537 | U.S. Treasury Notes, , 11/15/2028, 3.125 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.90%
|
| C000037537 | U.S. Treasury Notes, , 08/31/2030, 4.125 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.30%
|
| C000037537 | U.S. Treasury Notes, , 11/15/2031, 1.375 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.20%
|
| C000037537 | 1-2 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.00%
|
| C000037537 | 2-3 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.70%
|
| C000037537 | 3-4 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
33.80%
|
| C000037537 | 4-5 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
27.00%
|
| C000037537 | 5-6 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
20.40%
|
| C000037537 | 6-7 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
18.10%
|
| C000012088 | U.S. Treasury Notes, , 05/15/2034, 4.375 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
10.10%
|
| C000012088 | U.S. Treasury Notes, , 02/15/2034, 4 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
9.80%
|
| C000012088 | U.S. Treasury Notes, , 08/15/2034, 3.875 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
9.70%
|
| C000012088 | U.S. Treasury Notes, , 11/15/2033, 4.5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
8.50%
|
| C000012088 | U.S. Treasury Notes, , 11/15/2034, 4.25 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
8.30%
|
| C000012088 | U.S. Treasury Notes, , 11/15/2032, 4.125 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
7.80%
|
| C000012088 | U.S. Treasury Notes, , 08/15/2033, 3.875 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
7.70%
|
| C000012088 | U.S. Treasury Notes, , 02/15/2033, 3.5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
7.40%
|
| C000012088 | U.S. Treasury Notes, , 05/15/2033, 3.375 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
7.40%
|
| C000012088 | U.S. Treasury Notes, , 08/15/2032, 2.75 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
6.40%
|
| C000012088 | 6-7 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.70%
|
| C000012088 | 7-8 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
27.40%
|
| C000012088 | 8-9 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
33.40%
|
| C000012088 | 9-10 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
34.50%
|
| C000037538 | U.S. Treasury Bonds, , 11/15/2043, 4.75 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.60%
|
| C000037538 | U.S. Treasury Bonds, , 02/15/2044, 4.5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.60%
|
| C000037538 | U.S. Treasury Bonds, , 11/15/2041, 2 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.20%
|
| C000037538 | U.S. Treasury Bonds, , 05/15/2041, 2.25 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.80%
|
| C000037538 | U.S. Treasury Bonds, , 02/15/2041, 1.875 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.70%
|
| C000037538 | U.S. Treasury Bonds, , 02/15/2043, 3.875 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.50%
|
| C000037538 | U.S. Treasury Bonds, , 08/15/2041, 1.75 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.50%
|
| C000037538 | U.S. Treasury Bonds, , 08/15/2042, 2.75 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.30%
|
| C000037538 | U.S. Treasury Bonds, , 08/15/2044, 4.125 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.00%
|
| C000037538 | U.S. Treasury Bonds, , 08/15/2043, 4.375 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.80%
|
| C000037538 | 4-5 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.20%
|
| C000037538 | 5-6 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.00%
|
| C000037538 | 6-7 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.00%
|
| C000037538 | 7-8 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.20%
|
| C000037538 | 9-10 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.10%
|
| C000037538 | 10-11 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.80%
|
| C000037538 | 11-12 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.50%
|
| C000037538 | 12-13 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.20%
|
| C000037538 | 13-14 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.60%
|
| C000037538 | 14-15 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.00%
|
| C000037538 | 15-16 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
14.00%
|
| C000037538 | 16-17 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
18.40%
|
| C000037538 | 17-18 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
18.90%
|
| C000037538 | 18-19 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
26.30%
|
| C000037538 | 19-20 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
13.80%
|
| C000012090 | U.S. Treasury Bonds, , 08/15/2051, 2 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
6.50%
|
| C000012090 | U.S. Treasury Bonds, , 02/15/2051, 1.875 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
6.40%
|
| C000012090 | U.S. Treasury Bonds, , 11/15/2051, 1.875 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.30%
|
| C000012090 | U.S. Treasury Bonds, , 08/15/2053, 4.125 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.70%
|
| C000012090 | U.S. Treasury Bonds, , 11/15/2053, 4.75 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.60%
|
| C000012090 | U.S. Treasury Bonds, , 11/15/2050, 1.625 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.50%
|
| C000012090 | U.S. Treasury Bonds, , 05/15/2054, 4.625 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.50%
|
| C000012090 | U.S. Treasury Bonds, , 08/15/2054, 4.25 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.30%
|
| C000012090 | U.S. Treasury Bonds, , 02/15/2054, 4.25 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.10%
|
| C000012090 | U.S. Treasury Bonds, , 05/15/2053, 3.625 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.90%
|
| C000012090 | 15-20 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.10%
|
| C000012090 | 20-25 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
34.50%
|
| C000012090 | 25-30 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
64.40%
|
| C000221912 | U.S. Treasury Bonds Principal STRIPS, , 02/15/2052, 0 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
9.00%
|
| C000221912 | U.S. Treasury Bonds Principal STRIPS, , 11/15/2050, 0 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
8.20%
|
| C000221912 | U.S. Treasury Bonds Principal STRIPS, , 02/15/2051, 0 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
7.40%
|
| C000221912 | U.S. Treasury Bonds Principal STRIPS, , 08/15/2051, 0 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
6.80%
|
| C000221912 | U.S. Treasury Bonds Principal STRIPS, , 08/15/2050, 0 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
6.10%
|
| C000221912 | U.S. Treasury Bonds Principal STRIPS, , 11/15/2051, 0 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.40%
|
| C000221912 | U.S. Treasury Bonds Principal STRIPS, , 02/15/2054, 0 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.90%
|
| C000221912 | U.S. Treasury Bonds Principal STRIPS, , 08/15/2053, 0 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.80%
|
| C000221912 | U.S. Treasury Bonds Principal STRIPS, , 11/15/2053, 0 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.80%
|
| C000221912 | U.S. Treasury Bonds Principal STRIPS, , 05/15/2054, 0 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.80%
|
| C000221912 | 20-25 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.20%
|
| C000221912 | 25-30 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
95.80%
|
| C000037536 | U.S. Treasury Bills, , 05/15/2025, 4.562 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.30%
|
| C000037536 | U.S. Treasury Bills, , 04/03/2025, 4.293 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.90%
|
| C000037536 | U.S. Treasury Bills, , 05/01/2025, 4.267 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.20%
|
| C000037536 | U.S. Treasury Bills, , 07/17/2025, 4.269 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.10%
|
| C000037536 | U.S. Treasury Bills, , 04/17/2025, 4.818 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.00%
|
| C000037536 | U.S. Treasury Bills, , 07/03/2025, 4.224 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.90%
|
| C000037536 | U.S. Treasury Bills, , 04/24/2025, 4.369 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.80%
|
| C000037536 | U.S. Treasury Bills, , 03/18/2025, 4.321 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.40%
|
| C000037536 | U.S. Treasury Bills, , 03/25/2025, 4.348 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.20%
|
| C000037536 | U.S. Treasury Bills, , 04/10/2025, 4.362 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.10%
|
| C000037536 | U.S. Treasury Obligations |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
100.00%
|
| C000053739 | California Educational Facilities Authority,U-6,05/01/2045,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.80%
|
| C000053739 | California State University,2024A,11/01/2055,,5.5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.70%
|
| C000053739 | San Francisco City & County Public Utilities Commission Wastewater,2024C,10/01/2054,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.60%
|
| C000053739 | State of California,,11/01/2032,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.60%
|
| C000053739 | University of California,2023BN,05/15/2040,,5.5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.60%
|
| C000053739 | Bay Area Toll Authority,2023A,04/01/2055,,1.34999995 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.50%
|
| C000053739 | Los Angeles Unified School District,2024A,07/01/2034,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.50%
|
| C000053739 | State of California,,09/01/2041,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.50%
|
| C000053739 | State of California,,11/01/2031,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.50%
|
| C000053739 | San Diego Unified School District,2023A-3,07/01/2048,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.50%
|
| C000053739 | AAA |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
11.90%
|
| C000053739 | AA+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
10.10%
|
| C000053739 | AA |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
18.00%
|
| C000053739 | AA- |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
36.30%
|
| C000053739 | A+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.60%
|
| C000053739 | A |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.00%
|
| C000053739 | A- |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.40%
|
| C000053739 | BBB+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.10%
|
| C000053739 | Not Rated |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
14.60%
|
| C000052220 | New York |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
21.90%
|
| C000052220 | California |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
17.20%
|
| C000052220 | Texas |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
10.40%
|
| C000052220 | New Jersey |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.40%
|
| C000052220 | Illinois |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.40%
|
| C000052220 | Massachusetts |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.00%
|
| C000052220 | Washington |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.70%
|
| C000052220 | Pennsylvania |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.30%
|
| C000052220 | Maryland |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.60%
|
| C000052220 | Georgia |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.40%
|
| C000052220 | AAA |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
23.10%
|
| C000052220 | AA+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
21.00%
|
| C000052220 | AA |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
16.30%
|
| C000052220 | AA- |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
15.80%
|
| C000052220 | A+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.00%
|
| C000052220 | A |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.60%
|
| C000052220 | A- |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.90%
|
| C000052220 | BBB+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.30%
|
| C000052220 | Not Rated |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
9.60%
|
| C000052220 | BBB |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.40%
|
| C000052220 | BB+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.00%
|
| C000053740 | Utility Debt Securitization Authority,2023TE-1,12/15/2041,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.70%
|
| C000053740 | Empire State Development Corp.,2017A,03/15/2029,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.70%
|
| C000053740 | New York City Transitional Finance Authority Future Tax Secured,2023A-1,08/01/2042,,5.25 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.70%
|
| C000053740 | Triborough Bridge & Tunnel Authority,2025A,02/01/2028,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.60%
|
| C000053740 | New York State Dormitory Authority,2020A,07/01/2026,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.60%
|
| C000053740 | New York Power Authority,2024A,11/15/2035,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.60%
|
| C000053740 | New York City Transitional Finance Authority,2024G-1,05/01/2043,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.60%
|
| C000053740 | Battery Park City Authority,2019D-2,11/01/2038,,1.50000035 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.60%
|
| C000053740 | New York State Dormitory Authority,2024A,07/01/2054,,5.5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.60%
|
| C000053740 | Empire State Development Corp.,2024A,03/15/2054,,5 |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.60%
|
| C000053740 | AAA |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
24.90%
|
| C000053740 | AA+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
21.00%
|
| C000053740 | AA |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
22.30%
|
| C000053740 | AA- |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
11.30%
|
| C000053740 | A+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.10%
|
| C000053740 | A |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.70%
|
| C000053740 | A- |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.70%
|
| C000053740 | BBB+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.20%
|
| C000053740 | Not Rated |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
8.80%
|
| C000069126 | New York |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
12.90%
|
| C000069126 | California |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
11.80%
|
| C000069126 | Texas |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
11.20%
|
| C000069126 | New Jersey |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.60%
|
| C000069126 | Illinois |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.00%
|
| C000069126 | Massachusetts |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.40%
|
| C000069126 | Washington |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.50%
|
| C000069126 | Maryland |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.10%
|
| C000069126 | Virginia |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.30%
|
| C000069126 | Minnesota |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.10%
|
| C000069126 | AAA |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
32.00%
|
| C000069126 | AA+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
20.80%
|
| C000069126 | AA |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
14.10%
|
| C000069126 | AA- |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
12.50%
|
| C000069126 | A+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.00%
|
| C000069126 | A |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.00%
|
| C000069126 | A- |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.60%
|
| C000069126 | BBB+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.00%
|
| C000069126 | Not Rated |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
8.90%
|
| C000069126 | BBB |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.10%
|
| C000069125 | 15-20 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.40%
|
| C000069125 | 0-1 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.60%
|
| C000069125 | 1-5 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
66.40%
|
| C000069125 | 5-10 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
20.10%
|
| C000069125 | 10-15 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
6.80%
|
| C000069125 | More than 20 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.70%
|
| C000069125 | U.S. Treasury Obligations |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.00%
|
| C000069125 | U.S. Government Sponsored Agency Securities |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
95.70%
|
| C000069125 | Corporate Bonds |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.90%
|
| C000069125 | Foreign Government Obligations |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.40%
|
| C000227271 | A |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.80%
|
| C000227271 | A- |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.20%
|
| C000227271 | BBB+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
28.60%
|
| C000227271 | Not Rated |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.50%
|
| C000227271 | BBB |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
49.10%
|
| C000227271 | BB+ |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
1.70%
|
| C000227271 | BBB- |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
17.10%
|
| C000227271 | 15-20 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
4.70%
|
| C000227271 | 0-1 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
6.40%
|
| C000227271 | 1-5 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
31.70%
|
| C000227271 | 5-10 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
30.40%
|
| C000227271 | 10-15 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
5.20%
|
| C000227271 | More than 20 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
21.60%
|
| C000231752 | A |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
46.10%
|
| C000231752 | Not Rated |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
0.20%
|
| C000231752 | Aaa |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.30%
|
| C000231752 | Aa |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
3.90%
|
| C000231752 | Baa |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
43.90%
|
| C000231752 | Ba |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
2.60%
|
| C000231752 | 15-20 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
7.40%
|
| C000231752 | 1-5 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
20.60%
|
| C000231752 | 5-10 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
36.80%
|
| C000231752 | 10-15 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
9.10%
|
| C000231752 | More than 20 Years |
|
| Holdings [Line Items] |
|
| Percent of Total Investments |
26.10%
|