v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
C000101627 | BlackRock MuniHoldings Fund, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000101627 | Nuveen AMT-Free Quality Municipal Income Fund  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000101627 | BlackRock MuniYield Quality Fund, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000101627 | Nuveen Quality Municipal Income Fund  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000101627 | Nuveen AMT-Free Municipal Credit Income Fund  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000101627 | Nuveen Municipal Credit Income Fund  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000101627 | BlackRock Municipal 2030 Target Term Trust  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000101627 | BlackRock MuniYield Quality Fund III, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000101627 | Nuveen Municipal Value Fund, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000101627 | PIMCO Municipal Income Fund II  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000101627 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
C000101627 | Municipal Closed-End Funds  
Holdings [Line Items]  
Percent of Net Asset Value 100.20%
C000112445 | 22504  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000112445 | 26889  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000112445 | 23214  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000112445 | 26409  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000112445 | 26313  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000112445 | 25431  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000112445 | 750  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000112445 | 28623  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000112445 | 20616  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000112445 | 14294  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000112445 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000112445 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000112445 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000112445 | Consumer Cyclicals  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000112445 | Government  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000112445 | Healthcare  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000112445 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000112445 | Consumer Non-Cyclicals  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000112445 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000112445 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000112445 | Basic Materials  
Holdings [Line Items]  
Percent of Net Asset Value 11.80%
C000112445 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000112445 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 28.30%
C000112461 | 21188  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000112461 | 137  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000112461 | 21061  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000112461 | 20880  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000112461 | 2205  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000112461 | 25614  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000112461 | 25710  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000112461 | 25724  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000112461 | 17051  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000112461 | 27261  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000112461 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000112461 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000112461 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000112461 | Consumer Cyclicals  
Holdings [Line Items]  
Percent of Net Asset Value 39.10%
C000112461 | Healthcare  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000112461 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000112461 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000112461 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000112461 | Basic Materials  
Holdings [Line Items]  
Percent of Net Asset Value 15.40%
C000112461 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000112461 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000176891 | 20902  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000176891 | 24144  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000176891 | 27745  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000176891 | 17200  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000176891 | 24932  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000176891 | 17582  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000176891 | 22500  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000176891 | 23184  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000176891 | 22341  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000176891 | 20710  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000176891 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000176891 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000176891 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000176891 | Consumer Cyclicals  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000176891 | Government  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000176891 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000176891 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000176891 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 21.40%
C000176891 | Basic Materials  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000176891 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000176891 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 31.30%
C000176891 | Mortgage Securities  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000053010 | 2084  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000053010 | 7306  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000053010 | 8715  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000053010 | 421  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000053010 | 549  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000053010 | 8689  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000053010 | 7335  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000053010 | 23865  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053010 | 7436  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053010 | 19154  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053010 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000053010 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000053010 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000053010 | Water & Sewer  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000053010 | Miscellaneous  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000053010 | Transportation  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000053010 | Multi-Family Housing  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000053010 | State GO  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000053010 | Leasing COPS & Appropriations  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000053010 | Tobacco  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000053010 | Power  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000053010 | Airport  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000053010 | Toll & Turnpike  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000053010 | Local GO  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000053010 | Education  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000053010 | Health  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000053010 | Tax  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000053010 | Hospitals  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000053010 | Industrial Development Revenue  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
C000088892 | 25842  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000088892 | 26415  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000088892 | 28979  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000088892 | 27462  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000088892 | 25884  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000088892 | 28872  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000088892 | 28910  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000088892 | 27043  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000088892 | 25180  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000088892 | 29079  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000088892 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000088892 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000088892 | Consumer Cyclicals  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000088892 | Healthcare  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000088892 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000088892 | Consumer Non-Cyclicals  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000088892 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000088892 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000088892 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 82.60%
C000053007 | 26390  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053007 | 24706  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053007 | 26256  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000053007 | 25062  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000053007 | 26362  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000053007 | 25355  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000053007 | 22599  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000053007 | 22439  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000053007 | 19865  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000053007 | 26733  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000053007 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000053007 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000053007 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000053007 | Water & Sewer  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000053007 | Miscellaneous  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000053007 | Transportation  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000053007 | Multi-Family Housing  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000053007 | State GO  
Holdings [Line Items]  
Percent of Net Asset Value 13.30%
C000053007 | Leasing COPS & Appropriations  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000053007 | Power  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000053007 | Airport  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000053007 | Toll & Turnpike  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000053007 | Local GO  
Holdings [Line Items]  
Percent of Net Asset Value 14.10%
C000053007 | Education  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000053007 | Tax  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000053007 | Hospitals  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000053007 | Single Family Housing  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000053008 | 27592  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000053008 | 28876  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000053008 | 27854  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053008 | 26361  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053008 | 23140  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053008 | 27687  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053008 | 26216  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053008 | 27637  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053008 | 27437  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053008 | 27760  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000053008 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000053008 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000053008 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000053008 | Water & Sewer  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000053008 | Miscellaneous  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000053008 | Transportation  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000053008 | Multi-Family Housing  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000053008 | State GO  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000053008 | Leasing COPS & Appropriations  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000053008 | Power  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000053008 | Airport  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000053008 | Toll & Turnpike  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000053008 | Local GO  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000053008 | Education  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000053008 | Tax  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000053008 | Hospitals  
Holdings [Line Items]  
Percent of Net Asset Value 11.90%
C000053008 | Single Family Housing  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000221911 | 15130  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000221911 | 21789  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000221911 | 20263  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000221911 | 14429  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000221911 | 26058  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000221911 | 27278  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000221911 | 24554  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000221911 | 14825  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000221911 | 20262  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000221911 | 18939  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000221911 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000221911 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000221911 | Consumer Cyclicals  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000221911 | Healthcare  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000221911 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 19.50%
C000221911 | Consumer Non-Cyclicals  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000221911 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000221911 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000221911 | Basic Materials  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000221911 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000221911 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 20.80%
C000221910 | 28097  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000221910 | 28722  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000221910 | 28069  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000221910 | 28849  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000221910 | 26132  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000221910 | 23586  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000221910 | 25064  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000221910 | 28785  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000221910 | 14826  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000221910 | 22574  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000221910 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000221910 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000221910 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000221910 | Consumer Cyclicals  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000221910 | Healthcare  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000221910 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 25.50%
C000221910 | Consumer Non-Cyclicals  
Holdings [Line Items]  
Percent of Net Asset Value 21.40%
C000221910 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000221910 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000221910 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000221910 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 20.80%
C000119796 | 6908  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000119796 | 22352  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000119796 | 18213  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000119796 | 18647  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000119796 | 27904  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000119796 | 6071  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000119796 | 27586  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000119796 | 26589  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000119796 | 13038  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000119796 | 27978  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000119796 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000119796 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000119796 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000119796 | Water & Sewer  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000119796 | Miscellaneous  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000119796 | Transportation  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000119796 | Multi-Family Housing  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000119796 | State GO  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000119796 | Leasing COPS & Appropriations  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000119796 | Power  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000119796 | Airport  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000119796 | Toll & Turnpike  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000119796 | Local GO  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000119796 | Education  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000119796 | Health  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000119796 | Tax  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000119796 | Hospitals  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000119796 | Industrial Development Revenue  
Holdings [Line Items]  
Percent of Net Asset Value 19.50%
C000053009 | 27272  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000053009 | 3737  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000053009 | 992  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000053009 | 15476  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000053009 | 15663  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000053009 | 26036  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000053009 | 18075  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000053009 | 18567  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000053009 | 17986  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000053009 | 6568  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000053009 | Other assets and liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000053009 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000053009 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 8.20%
C000053009 | Water & Sewer  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000053009 | Transportation  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000053009 | Multi-Family Housing  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000053009 | State GO  
Holdings [Line Items]  
Percent of Net Asset Value 17.50%
C000053009 | Leasing COPS & Appropriations  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000053009 | Power  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000053009 | Airport  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000053009 | Toll & Turnpike  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000053009 | Local GO  
Holdings [Line Items]  
Percent of Net Asset Value 14.40%
C000053009 | Education  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000053009 | Tax  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000053009 | Hospitals  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000053009 | Refunded  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%