v3.26.1
Shareholder Report, Holdings (Details)
Mar. 31, 2026
C000221929 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000221929 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 41.90%
C000221929 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000221929 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000221929 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.30%
C000221929 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000221929 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000221929 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
C000221929 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000221930 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000221930 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 41.90%
C000221930 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000221930 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000221930 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.30%
C000221930 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000221930 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000221930 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
C000221930 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000016014 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000016014 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 41.90%
C000016014 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000016014 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000016014 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.30%
C000016014 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000016014 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000016014 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
C000016014 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000016013 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000016013 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 41.90%
C000016013 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000016013 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000016013 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.30%
C000016013 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000016013 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000016013 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
C000016013 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000093499 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000093499 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 41.90%
C000093499 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000093499 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000093499 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.30%
C000093499 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000093499 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000093499 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
C000093499 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000093498 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000093498 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 41.90%
C000093498 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000093498 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000093498 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.30%
C000093498 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000093498 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000093498 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
C000093498 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000048891 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000048891 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000048891 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000048891 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000048891 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000048891 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000048891 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000048891 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000048891 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000048891 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
C000048891 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000048892 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000048892 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000048892 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000048892 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000048892 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000048892 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000048892 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000048892 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000048892 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000048892 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
C000048892 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000016016 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000016016 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000016016 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000016016 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000016016 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000016016 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000016016 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000016016 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000016016 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000016016 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
C000016016 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000039629 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000039629 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000039629 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000039629 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000039629 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000039629 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000039629 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000039629 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000039629 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000039629 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
C000039629 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000112484 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000112484 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000112484 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000112484 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000112484 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000112484 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000112484 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000112484 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000112484 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000112484 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
C000112484 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000226003 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000226003 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000226003 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.30%
C000226003 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000226003 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000226003 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000226003 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000226003 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000226003 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000226003 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
C000226003 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000099304 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000099304 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000099304 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.20%
C000099304 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000099304 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000099304 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
C000099304 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000099304 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000099304 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000099304 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000099304 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000099304 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.30%)
C000099304 [Member] | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000099304 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000099303 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000099303 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000099303 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.20%
C000099303 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000099303 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000099303 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
C000099303 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000099303 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000099303 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000099303 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000099303 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000099303 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.30%)
C000099303 [Member] | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000099303 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000051267 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000051267 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000051267 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.20%
C000051267 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000051267 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000051267 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
C000051267 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000051267 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000051267 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000051267 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000051267 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000051267 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.30%)
C000051267 [Member] | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000051267 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000051266 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000051266 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000051266 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.20%
C000051266 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000051266 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000051266 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
C000051266 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000051266 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000051266 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000051266 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000051266 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000051266 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.30%)
C000051266 [Member] | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000051266 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000109425 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000109425 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [1]
C000109425 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70% [1]
C000109425 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [1]
C000109425 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.50% [1]
C000109425 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.60% [1]
C000109425 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [1]
C000109425 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.10% [1]
C000109425 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000109425 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000109425 [Member] | Commercial Paper [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000109425 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000109425 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
C000109425 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.50%
C000109425 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.30%
C000109425 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000109425 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000109425 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000109425 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000109426 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000109426 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [2]
C000109426 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70% [2]
C000109426 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [2]
C000109426 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.50% [2]
C000109426 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.60% [2]
C000109426 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [2]
C000109426 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.10% [2]
C000109426 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000109426 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000109426 [Member] | Commercial Paper [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000109426 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000109426 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
C000109426 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.50%
C000109426 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.30%
C000109426 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000109426 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000109426 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000109426 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000193832 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000193832 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [3]
C000193832 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70% [3]
C000193832 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [3]
C000193832 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.50% [3]
C000193832 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.60% [3]
C000193832 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [3]
C000193832 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.10% [3]
C000193832 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000193832 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000193832 [Member] | Commercial Paper [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000193832 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000193832 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
C000193832 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.50%
C000193832 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.30%
C000193832 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000193832 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000193832 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000193832 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000109427 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000109427 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [4]
C000109427 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70% [4]
C000109427 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [4]
C000109427 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.50% [4]
C000109427 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.60% [4]
C000109427 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [4]
C000109427 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.10% [4]
C000109427 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000109427 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000109427 [Member] | Commercial Paper [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000109427 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000109427 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
C000109427 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.50%
C000109427 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.30%
C000109427 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000109427 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000109427 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000109427 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000017655 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000017655 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [5]
C000017655 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70% [5]
C000017655 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [5]
C000017655 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.50% [5]
C000017655 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.60% [5]
C000017655 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [5]
C000017655 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.10% [5]
C000017655 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000017655 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000017655 [Member] | Commercial Paper [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000017655 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000017655 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
C000017655 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.50%
C000017655 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.30%
C000017655 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000017655 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000017655 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000017655 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000109428 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000109428 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [6]
C000109428 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70% [6]
C000109428 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [6]
C000109428 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.50% [6]
C000109428 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.60% [6]
C000109428 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [6]
C000109428 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.10% [6]
C000109428 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000109428 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000109428 [Member] | Commercial Paper [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000109428 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000109428 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
C000109428 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.50%
C000109428 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.30%
C000109428 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000109428 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000109428 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000109428 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000244703 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000244703 [Member] | Total Country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000244703 [Member] | Short Term Investment Fund Country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000244703 [Member] | Other Countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000244703 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 29.00%
C000244703 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000244703 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.10%
C000244703 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000244703 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000244703 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
C000244703 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000244703 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000244703 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000244703 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000244703 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
C000244703 [Member] | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000244703 [Member] | SINGAPORE  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000244703 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000244703 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000244703 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000244703 [Member] | INDIA  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000244703 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000244703 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000244703 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000244703 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000244703 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000214318 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000214318 [Member] | Total Country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000214318 [Member] | Short Term Investment Fund Country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000214318 [Member] | Other Countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000214318 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 29.00%
C000214318 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000214318 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.10%
C000214318 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000214318 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000214318 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
C000214318 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000214318 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000214318 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000214318 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000214318 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
C000214318 [Member] | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000214318 [Member] | SINGAPORE  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000214318 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000214318 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000214318 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000214318 [Member] | INDIA  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000214318 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000214318 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000214318 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000214318 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000214318 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000067757 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000067757 [Member] | Total Country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000067757 [Member] | Short Term Investment Fund Country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000067757 [Member] | Other Countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000067757 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 29.00%
C000067757 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000067757 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.10%
C000067757 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000067757 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000067757 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
C000067757 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000067757 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000067757 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000067757 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000067757 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
C000067757 [Member] | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000067757 [Member] | SINGAPORE  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000067757 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000067757 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000067757 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000067757 [Member] | INDIA  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000067757 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000067757 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000067757 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000067757 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000067757 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000055087 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000055087 [Member] | Total Country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000055087 [Member] | Short Term Investment Fund Country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000055087 [Member] | Other Countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000055087 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 29.00%
C000055087 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000055087 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.10%
C000055087 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000055087 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000055087 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
C000055087 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000055087 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000055087 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000055087 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000055087 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
C000055087 [Member] | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000055087 [Member] | SINGAPORE  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000055087 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000055087 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000055087 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000055087 [Member] | INDIA  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000055087 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000055087 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000055087 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000055087 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000055087 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000055086 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000055086 [Member] | Total Country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000055086 [Member] | Short Term Investment Fund Country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000055086 [Member] | Other Countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000055086 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 29.00%
C000055086 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000055086 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.10%
C000055086 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000055086 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000055086 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
C000055086 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000055086 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000055086 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000055086 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000055086 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
C000055086 [Member] | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000055086 [Member] | SINGAPORE  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000055086 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000055086 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000055086 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000055086 [Member] | INDIA  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000055086 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000055086 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000055086 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000055086 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000055086 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000079898 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079898 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.00%
C000079898 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.80%
C000079898 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000079898 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000079898 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000079898 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000079898 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000079898 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000079898 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000079898 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10%
C000079898 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
C000079898 [Member] | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000079898 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000079895 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079895 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.00%
C000079895 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.80%
C000079895 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000079895 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000079895 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000079895 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000079895 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000079895 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000079895 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000079895 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10%
C000079895 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
C000079895 [Member] | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000079895 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000079896 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079896 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.00%
C000079896 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.80%
C000079896 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000079896 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000079896 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000079896 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000079896 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000079896 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000079896 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000079896 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10%
C000079896 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
C000079896 [Member] | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000079896 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000079897 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079897 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.00%
C000079897 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.80%
C000079897 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000079897 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000079897 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000079897 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000079897 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000079897 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000079897 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000079897 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10%
C000079897 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
C000079897 [Member] | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000079897 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000079910 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079910 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
C000079910 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 24.80%
C000079910 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000079910 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000079910 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000079910 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000079910 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000079910 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000079910 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
C000079910 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000079909 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079909 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
C000079909 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 24.80%
C000079909 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000079909 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000079909 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000079909 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000079909 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000079909 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000079909 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
C000079909 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000079908 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079908 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
C000079908 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 24.80%
C000079908 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000079908 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000079908 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000079908 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000079908 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000079908 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000079908 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
C000079908 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000079907 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079907 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
C000079907 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 24.80%
C000079907 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000079907 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000079907 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000079907 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000079907 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000079907 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000079907 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
C000079907 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000079919 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079919 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [7]
C000079919 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30% [7]
C000079919 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80% [7]
C000079919 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40% [7]
C000079919 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 64.30% [7]
C000079919 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.20% [7]
C000079919 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000079919 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000079919 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000079919 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.40%
C000079919 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000079919 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.50%
C000079919 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000079919 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000079919 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000079919 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000079919 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000079920 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079920 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [8]
C000079920 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30% [8]
C000079920 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80% [8]
C000079920 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40% [8]
C000079920 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 64.30% [8]
C000079920 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.20% [8]
C000079920 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000079920 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000079920 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000079920 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.40%
C000079920 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000079920 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.50%
C000079920 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000079920 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000079920 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000079920 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000079920 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000079921 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079921 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [9]
C000079921 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30% [9]
C000079921 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80% [9]
C000079921 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40% [9]
C000079921 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 64.30% [9]
C000079921 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.20% [9]
C000079921 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000079921 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000079921 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000079921 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.40%
C000079921 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000079921 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.50%
C000079921 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000079921 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000079921 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000079921 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000079921 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000079922 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000079922 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [10]
C000079922 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30% [10]
C000079922 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80% [10]
C000079922 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40% [10]
C000079922 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 64.30% [10]
C000079922 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.20% [10]
C000079922 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000079922 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000079922 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000079922 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.40%
C000079922 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000079922 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.50%
C000079922 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000079922 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000079922 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000079922 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000079922 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000232512 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000232512 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [11]
C000232512 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30% [11]
C000232512 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80% [11]
C000232512 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40% [11]
C000232512 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 64.30% [11]
C000232512 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.20% [11]
C000232512 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000232512 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000232512 [Member] | Municipal Bonds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000232512 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.40%
C000232512 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000232512 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.50%
C000232512 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000232512 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000232512 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000232512 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000232512 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000261019 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000261019 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [12]
C000261019 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90% [12]
C000261019 [Member] | Standard & Poor's, CCC Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.80% [12]
C000261019 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.90% [12]
C000261019 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 40.20% [12]
C000261019 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60% [12]
C000261019 [Member] | C or Lower [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [12]
C000261019 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.00%)
C000261019 [Member] | Written Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000261019 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000261019 [Member] | Purchased Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000261019 [Member] | Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000261019 [Member] | Bank Loans [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000261019 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000261019 [Member] | Warrant [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000261019 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000261019 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 81.90%
C000131059 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000131059 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [13]
C000131059 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90% [13]
C000131059 [Member] | Standard & Poor's, CCC Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.80% [13]
C000131059 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.90% [13]
C000131059 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 40.20% [13]
C000131059 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60% [13]
C000131059 [Member] | C or Lower [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [13]
C000131059 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.00%)
C000131059 [Member] | Written Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000131059 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000131059 [Member] | Purchased Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000131059 [Member] | Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000131059 [Member] | Bank Loans [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000131059 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000131059 [Member] | Warrant [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000131059 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000131059 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 81.90%
C000131058 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000131058 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [14]
C000131058 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90% [14]
C000131058 [Member] | Standard & Poor's, CCC Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.80% [14]
C000131058 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.90% [14]
C000131058 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 40.20% [14]
C000131058 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60% [14]
C000131058 [Member] | C or Lower [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [14]
C000131058 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.00%)
C000131058 [Member] | Written Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000131058 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000131058 [Member] | Purchased Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000131058 [Member] | Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000131058 [Member] | Bank Loans [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000131058 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000131058 [Member] | Warrant [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000131058 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000131058 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 81.90%
C000131057 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000131057 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [15]
C000131057 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90% [15]
C000131057 [Member] | Standard & Poor's, CCC Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.80% [15]
C000131057 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.90% [15]
C000131057 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 40.20% [15]
C000131057 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60% [15]
C000131057 [Member] | C or Lower [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [15]
C000131057 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.00%)
C000131057 [Member] | Written Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000131057 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000131057 [Member] | Purchased Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000131057 [Member] | Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000131057 [Member] | Bank Loans [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000131057 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000131057 [Member] | Warrant [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000131057 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000131057 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 81.90%
C000131056 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000131056 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [16]
C000131056 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90% [16]
C000131056 [Member] | Standard & Poor's, CCC Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.80% [16]
C000131056 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.90% [16]
C000131056 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 40.20% [16]
C000131056 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60% [16]
C000131056 [Member] | C or Lower [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [16]
C000131056 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.00%)
C000131056 [Member] | Written Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000131056 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000131056 [Member] | Purchased Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000131056 [Member] | Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000131056 [Member] | Bank Loans [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000131056 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000131056 [Member] | Warrant [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000131056 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000131056 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 81.90%
C000176882 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000176882 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [17]
C000176882 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30% [17]
C000176882 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.40% [17]
C000176882 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90% [17]
C000176882 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 24.20% [17]
C000176882 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.30% [17]
C000176882 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.10% [17]
C000176882 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.80% [17]
C000176882 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000176882 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000176882 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000176882 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.40%
C000176882 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000176882 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.30%
C000176882 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000176882 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000176882 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000176882 [Member] | Sovereign Government Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000176883 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000176883 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [18]
C000176883 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30% [18]
C000176883 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.40% [18]
C000176883 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90% [18]
C000176883 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 24.20% [18]
C000176883 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.30% [18]
C000176883 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.10% [18]
C000176883 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.80% [18]
C000176883 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000176883 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000176883 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000176883 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.40%
C000176883 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000176883 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.30%
C000176883 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000176883 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000176883 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000176883 [Member] | Sovereign Government Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000176884 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000176884 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [19]
C000176884 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30% [19]
C000176884 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.40% [19]
C000176884 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90% [19]
C000176884 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 24.20% [19]
C000176884 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.30% [19]
C000176884 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.10% [19]
C000176884 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.80% [19]
C000176884 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000176884 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000176884 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000176884 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.40%
C000176884 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000176884 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.30%
C000176884 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000176884 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000176884 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000176884 [Member] | Sovereign Government Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000176885 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000176885 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [20]
C000176885 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30% [20]
C000176885 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.40% [20]
C000176885 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90% [20]
C000176885 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 24.20% [20]
C000176885 [Member] | Standard & Poor's, AAA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.30% [20]
C000176885 [Member] | Standard & Poor's, AA Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.10% [20]
C000176885 [Member] | Standard & Poor's, A Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.80% [20]
C000176885 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000176885 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000176885 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000176885 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.40%
C000176885 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000176885 [Member] | U S Treasury Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.30%
C000176885 [Member] | Non Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000176885 [Member] | U S Government Mortgage Backed Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000176885 [Member] | Agency Collateralized Mortgage Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000176885 [Member] | Sovereign Government Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000176889 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000176889 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [21]
C000176889 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70% [21]
C000176889 [Member] | Standard & Poor's, CCC Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [21]
C000176889 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.80% [21]
C000176889 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.10% [21]
C000176889 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.90% [21]
C000176889 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.00%)
C000176889 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000176889 [Member] | Bank Loans [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000176889 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000176889 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 94.70%
C000176888 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000176888 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [22]
C000176888 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70% [22]
C000176888 [Member] | Standard & Poor's, CCC Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [22]
C000176888 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.80% [22]
C000176888 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.10% [22]
C000176888 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.90% [22]
C000176888 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.00%)
C000176888 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000176888 [Member] | Bank Loans [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000176888 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000176888 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 94.70%
C000176887 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000176887 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [23]
C000176887 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70% [23]
C000176887 [Member] | Standard & Poor's, CCC Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [23]
C000176887 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.80% [23]
C000176887 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.10% [23]
C000176887 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.90% [23]
C000176887 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.00%)
C000176887 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000176887 [Member] | Bank Loans [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000176887 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000176887 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 94.70%
C000176886 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000176886 [Member] | Total Quality [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [24]
C000176886 [Member] | Not Rated [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70% [24]
C000176886 [Member] | Standard & Poor's, CCC Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [24]
C000176886 [Member] | Standard & Poor's, B Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 27.80% [24]
C000176886 [Member] | Standard & Poor's, BB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.10% [24]
C000176886 [Member] | Standard & Poor's, BBB Rating [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.90% [24]
C000176886 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.00%)
C000176886 [Member] | Short Term Investment Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000176886 [Member] | Bank Loans [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000176886 [Member] | Common Stock [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000176886 [Member] | Corporate Bond Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 94.70%
C000226969 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000226969 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000226969 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
C000226969 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000226969 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000226969 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000226969 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000226969 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000226969 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000226969 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000226969 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000226969 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000226969 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%)
C000226969 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000226968 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000226968 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000226968 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
C000226968 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000226968 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000226968 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000226968 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000226968 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000226968 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000226968 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000226968 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000226968 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000226968 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%)
C000226968 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000226970 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000226970 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000226970 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
C000226970 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000226970 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000226970 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000226970 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000226970 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000226970 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000226970 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000226970 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000226970 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000226970 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%)
C000226970 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000226971 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000226971 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000226971 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
C000226971 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000226971 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000226971 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000226971 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000226971 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000226971 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000226971 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000226971 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000226971 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000226971 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%)
C000226971 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000229316 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000229316 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000229316 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
C000229316 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000229316 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000229316 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000229316 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000229316 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000229316 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000229316 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000229316 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000229316 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000229316 [Member] | Other Assets Liabilities Net [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%)
C000229316 [Member] | Short Term Investment Fund [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
[1] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[2] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[3] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[4] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[5] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[6] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[7] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[8] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[9] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[10] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[11] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[12] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[13] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[14] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[15] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[16] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[17] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[18] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[19] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[20] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[21] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[22] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[23] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
[24] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.