v3.26.1
Shareholder Report, Holdings (Details)
Jun. 30, 2026
C000259889 | iShares Core S&P 500 ETF  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000259889 | Northwestern Mutual Series Fund, Inc., Select Bond Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000259889 | Northwestern Mutual Series Fund, Inc., International Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000259889 | iShares Core MSCI EAFE ETF  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000259889 | State Street SPDR Portfolio S&P 400 Mid Cap ETF  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000259889 | iShares Core U.S. Aggregate Bond ETF  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000259889 | Northwestern Mutual Series Fund, Inc., Large Cap Blend Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000259889 | Northwestern Mutual Series Fund, Inc., Focused Appreciation Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000259889 | Northwestern Mutual Series Fund, Inc., Domestic Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000259889 | Northwestern Mutual Series Fund, Inc., International Growth Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000259889 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000259889 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000259889 | Fixed Income  
Holdings [Line Items]  
Percent of Net Asset Value 17.40%
C000259889 | Foreign Equity  
Holdings [Line Items]  
Percent of Net Asset Value 26.80%
C000259889 | Domestic Equity  
Holdings [Line Items]  
Percent of Net Asset Value 51.30%
C000259890 | iShares Core S&P 500 ETF  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000259890 | Northwestern Mutual Series Fund, Inc., International Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000259890 | iShares Core MSCI EAFE ETF  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000259890 | State Street SPDR Portfolio S&P 400 Mid Cap ETF  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000259890 | Northwestern Mutual Series Fund, Inc., Large Cap Blend Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000259890 | Northwestern Mutual Series Fund, Inc., Focused Appreciation Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000259890 | Northwestern Mutual Series Fund, Inc., Domestic Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000259890 | Northwestern Mutual Series Fund, Inc., International Growth Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000259890 | Northwestern Mutual Series Fund, Inc., Emerging Markets Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000259890 | Invesco S&P 500 Equal Weight ETF  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000259890 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000259890 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000259890 | Foreign Equity  
Holdings [Line Items]  
Percent of Net Asset Value 33.80%
C000259890 | Domestic Equity  
Holdings [Line Items]  
Percent of Net Asset Value 61.90%
C000259888 | iShares Core S&P 500 ETF  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000259888 | Northwestern Mutual Series Fund, Inc., Select Bond Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 24.00%
C000259888 | Northwestern Mutual Series Fund, Inc., International Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000259888 | State Street SPDR Portfolio S&P 400 Mid Cap ETF  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000259888 | iShares Core U.S. Aggregate Bond ETF  
Holdings [Line Items]  
Percent of Net Asset Value 29.20%
C000259888 | Northwestern Mutual Series Fund, Inc., Emerging Markets Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000259888 | Northwestern Mutual Series Fund, Inc., Multi-Sector Bond Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000259888 | State Street SPDR Portfolio Long Term Treasury ETF  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000259888 | Northwestern Mutual Series Fund, Inc., Short-Term Bond Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000259888 | State Street SPDR Dow Jones REIT ETF  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000259888 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000259888 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000259888 | Fixed Income  
Holdings [Line Items]  
Percent of Net Asset Value 71.20%
C000259888 | Foreign Equity  
Holdings [Line Items]  
Percent of Net Asset Value 8.20%
C000259888 | Domestic Equity  
Holdings [Line Items]  
Percent of Net Asset Value 16.70%
C000000079 | iShares Core S&P 500 ETF  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
C000000079 | Northwestern Mutual Series Fund, Inc., Select Bond Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 17.90%
C000000079 | Northwestern Mutual Series Fund, Inc., International Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000000079 | State Street SPDR Portfolio S&P 400 Mid Cap ETF  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000000079 | iShares Core U.S. Aggregate Bond ETF  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000000079 | Northwestern Mutual Series Fund, Inc., Large Cap Blend Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000000079 | Northwestern Mutual Series Fund, Inc., Focused Appreciation Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000000079 | Northwestern Mutual Series Fund, Inc., Domestic Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000000079 | Invesco S&P 500 Equal Weight ETF  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000000079 | Northwestern Mutual Series Fund, Inc., Multi-Sector Bond Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000000079 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000000079 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000000079 | Fixed Income  
Holdings [Line Items]  
Percent of Net Asset Value 32.40%
C000000079 | Foreign Equity  
Holdings [Line Items]  
Percent of Net Asset Value 19.80%
C000000079 | Domestic Equity  
Holdings [Line Items]  
Percent of Net Asset Value 43.40%
C000000080 | iShares Core S&P 500 ETF  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000000080 | Northwestern Mutual Series Fund, Inc., Select Bond Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 24.90%
C000000080 | Northwestern Mutual Series Fund, Inc., International Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000000080 | State Street SPDR Portfolio S&P 400 Mid Cap ETF  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000000080 | iShares Core U.S. Aggregate Bond ETF  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000000080 | Northwestern Mutual Series Fund, Inc., International Growth Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000000080 | Northwestern Mutual Series Fund, Inc., Emerging Markets Equity Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000000080 | Northwestern Mutual Series Fund, Inc., Multi-Sector Bond Portfolio  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000000080 | State Street SPDR Portfolio Long Term Treasury ETF  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000000080 | State Street SPDR Portfolio S&P 600 Small Cap ETF  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000000080 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000000080 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000000080 | Fixed Income  
Holdings [Line Items]  
Percent of Net Asset Value 51.80%
C000000080 | Foreign Equity  
Holdings [Line Items]  
Percent of Net Asset Value 14.10%
C000000080 | Domestic Equity  
Holdings [Line Items]  
Percent of Net Asset Value 30.10%
C000000076 | Apple, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000000076 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000000076 | Citigroup, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000000076 | Amazon.com, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000000076 | Cisco Systems, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000000076 | AbbVie, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000000076 | Exxon Mobil Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000000076 | Philip Morris International, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000000076 | The Coca-Cola Co.  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000000076 | Advanced Micro Devices, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000000076 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000076 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000000076 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000000076 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000000076 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000000076 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000000076 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000000076 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000000076 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
C000000076 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 14.40%
C000000076 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 18.20%
C000000076 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 20.10%
C000050280 | Samsung Electronics Co., Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000050280 | Taiwan Semiconductor Manufacturing Co., Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000050280 | SK Hynix, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000050280 | MediaTek, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000050280 | Tencent Holdings, Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000050280 | Grupo Mexico SAB de CV  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000050280 | HDFC Bank, Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000050280 | NAURA Technology Group Co., Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000050280 | Contemporary Amperex Technology Co., Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000050280 | Chroma ATE, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000050280 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000050280 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000050280 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000050280 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000050280 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000050280 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000050280 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000050280 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000050280 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000050280 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000050280 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000050280 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 45.70%
C000050280 | India  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000050280 | China  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000050280 | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 22.50%
C000050280 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 24.80%
C000050280 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 22.10%
C000000077 | Apple, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000000077 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000000077 | Citigroup, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000000077 | Amazon.com, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000000077 | The Southern Co.  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000000077 | MetLife, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000000077 | Intel Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000000077 | QUALCOMM, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000000077 | JPMorgan Chase & Co.  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000000077 | TotalEnergies SE  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000000077 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000000077 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000000077 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000000077 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000000077 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000000077 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000000077 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000000077 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000000077 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
C000000077 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000000077 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 19.50%
C000000077 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 16.70%
C000000090 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000000090 | Amazon.com, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000000090 | NVIDIA Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 12.60%
C000000090 | Alphabet, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000000090 | Tesla, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000000090 | Meta Platforms, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
C000000090 | Visa, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000000090 | The Boeing Co.  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000000090 | Netflix, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000000090 | Monster Beverage Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000000090 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000000090 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 23.30%
C000000090 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000000090 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 17.30%
C000000090 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000000090 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
C000000090 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
C000000090 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 27.00%
C000000083 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
C000000083 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 37.70%
C000000083 | US Government & Agencies  
Holdings [Line Items]  
Percent of Net Asset Value 63.30%
C000000091 | Apple, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000000091 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000000091 | Amazon.com, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000000091 | NVIDIA Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 17.30%
C000000091 | Alphabet, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000000091 | Meta Platforms, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000000091 | Broadcom, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000000091 | Samsung Electronics Co., Ltd., GDR  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000000091 | Eli Lilly & Co.  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000000091 | Carvana Co.  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000000091 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000000091 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000000091 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000000091 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000000091 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000000091 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000000091 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000000091 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000000091 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 52.70%
C000000081 | CCO Holdings LLC / CCO Holdings Capital Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000000081 | TransDigm, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000000081 | HUB International, Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000000081 | Venture Global Plaquemines LNG LLC  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000000081 | Cloud Software Group, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000000081 | NRG Energy, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000000081 | Ford Motor Credit Co. LLC  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000000081 | Ardonagh Group Finance, Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000081 | 1011778 BC ULC / New Red Finance, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000081 | Antero Midstream Partners LP / Antero Midstream Finance Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000081 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000000081 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000000081 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000000081 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000000081 | Diversified  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000000081 | Basic Materials  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000000081 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000000081 | Industrial  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000000081 | Communications  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
C000000081 | Financial  
Holdings [Line Items]  
Percent of Net Asset Value 11.90%
C000000081 | Consumer, Non-cyclical  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000000081 | Consumer, Cyclical  
Holdings [Line Items]  
Percent of Net Asset Value 17.40%
C000000089 | Twilio, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000000089 | Carpenter Technology Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000000089 | MKS, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000000089 | Curtiss-Wright Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000000089 | Entegris, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000000089 | nVent Electric PLC  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000000089 | ATI, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000000089 | Illumina, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000000089 | TechnipFMC PLC  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000000089 | Sterling Infrastructure, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000000089 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000000089 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000000089 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000000089 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000000089 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000000089 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000000089 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000000089 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000000089 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 25.40%
C000000089 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000000089 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000000089 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 15.30%
C000000078 | Apple, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000000078 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000000078 | Amazon.com, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000000078 | NVIDIA Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000000078 | Alphabet, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000000078 | Tesla, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000000078 | Meta Platforms, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000000078 | Broadcom, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000000078 | Eli Lilly & Co.  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000000078 | Micron Technology, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000000078 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000000078 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000000078 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000000078 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000000078 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000000078 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000000078 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000000078 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
C000000078 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000000078 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000000078 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
C000000078 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 37.80%
C000050279 | FormFactor, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000050279 | ViaSat, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000050279 | Molina Healthcare, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050279 | Argan, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050279 | BrightSpring Health Services  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050279 | Element Solutions, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050279 | MaxLinear, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050279 | Krystal Biotech, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000050279 | ESCO Technologies, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000050279 | Match Group, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000050279 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000050279 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000050279 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000050279 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000050279 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000050279 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000050279 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000050279 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
C000050279 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000050279 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000050279 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 18.10%
C000050279 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 14.20%
C000050276 | US Treasury Inflation Index Bond  
Holdings [Line Items]  
Percent of Net Asset Value 50.50%
C000050276 | Federal Home Loan Mortgage Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000050276 | Government National Mortgage Association  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000050276 | Capital One Financial Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000050276 | Federal National Mortgage Association  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000050276 | Fastnet Funding Co. LLC  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000050276 | Aquitaine Funding Co. LLC  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000050276 | Oracle Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000050276 | The Goldman Sachs Group, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000050276 | Santander Mortgage Asset Receivables Trust, Series 2026-NQM4, Class A1  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050276 | AssetType:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000050276 | Municipal Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000050276 | Corporate Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 19.40%
C000050276 | Structured Products  
Holdings [Line Items]  
Percent of Net Asset Value 26.60%
C000050276 | Governments  
Holdings [Line Items]  
Percent of Net Asset Value 50.60%
C000000087 | Taiwan Semiconductor Manufacturing Co., Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000000087 | SK Hynix, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000000087 | BNP Paribas SA  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000000087 | Johnson Controls International PLC  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000000087 | Infineon Technologies AG  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000000087 | Banco Santander SA  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000000087 | Barclays PLC  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000000087 | GSK PLC  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000000087 | UBS Group AG  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000000087 | Itau Unibanco Holding SA  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000000087 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000000087 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000000087 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000087 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000000087 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000000087 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000000087 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000000087 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000000087 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 11.80%
C000000087 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000000087 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 26.90%
C000000087 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000000087 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000000087 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000000087 | France  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000000087 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000000087 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000000087 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 12.40%
C000000087 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 17.90%
C000000087 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 33.90%
C000000086 | Taiwan Semiconductor Manufacturing Co., Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000000086 | ASML Holding NV  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000000086 | GE Vernova, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000000086 | Schneider Electric SE  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000000086 | Rolls-Royce Holdings PLC  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000000086 | Safran SA  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000000086 | Airbus SE  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000000086 | Advantest Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000000086 | BAE Systems PLC  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000000086 | ABB, Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000000086 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000000086 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000000086 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000000086 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000000086 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 42.20%
C000000086 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000000086 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000000086 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 27.90%
C000000086 | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000000086 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000000086 | France  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000000086 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 15.30%
C000000086 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 11.80%
C000000086 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000000086 | Sweden  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000000086 | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 12.60%
C000000086 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000050277 | Apple, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000050277 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000050277 | Amazon.com, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000050277 | NVIDIA Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000050277 | Alphabet, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000050277 | Broadcom, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000050277 | Micron Technology, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000050277 | Mastercard, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000050277 | Wells Fargo & Co.  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000050277 | American Express Co.  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000050277 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000050277 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000050277 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000050277 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000050277 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000050277 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000050277 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000050277 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
C000050277 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000050277 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 8.20%
C000050277 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 14.80%
C000050277 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 35.10%
C000000075 | Apple, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000000075 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000000075 | Amazon.com, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000000075 | Advanced Micro Devices, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000000075 | NVIDIA Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000000075 | Alphabet, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000000075 | Broadcom, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000000075 | Micron Technology, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000000075 | The Goldman Sachs Group, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000000075 | Berkshire Hathaway, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000000075 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000000075 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000000075 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000000075 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000000075 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000000075 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000000075 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000000075 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000000075 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000000075 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
C000000075 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 11.80%
C000000075 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 36.10%
C000050275 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000050275 | Amazon.com, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000050275 | JPMorgan Chase & Co.  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000050275 | Berkshire Hathaway, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000050275 | Marsh & McLennan Cos., Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000050275 | Duke Energy Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000050275 | Johnson & Johnson  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000050275 | Becton Dickinson and Co.  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000050275 | Enterprise Products Partners LP  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000050275 | BlackRock, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000050275 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000050275 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000050275 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000050275 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000050275 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000050275 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000050275 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000050275 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 11.80%
C000050275 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 16.20%
C000050275 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 22.10%
C000050275 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000050282 | US Treasury Inflation Index Bond  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000050282 | Federal Home Loan Mortgage Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000050282 | US Treasury Bond  
Holdings [Line Items]  
Percent of Net Asset Value 119.50%
C000050282 | Uniform Mortgage Backed Security TBA  
Holdings [Line Items]  
Percent of Net Asset Value 9.80%
C000050282 | US Treasury Note  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000050282 | Federal Home Loan Mortgage Corp., Series 4092, Class AY  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000050282 | Federal Home Loan Mortgage Corp., Series 4387, Class AZ  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000050282 | Federal Home Loan Mortgage Corp., Series 4398, Class ZX  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000050282 | US Treasury Bond Strip Coupon  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050282 | Federal National Mortgage Association, Series 2016-61, Class ML  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050282 | AssetType:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value (51.60%)
C000050282 | Corporate Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000050282 | Structured Products  
Holdings [Line Items]  
Percent of Net Asset Value 19.30%
C000050282 | Governments  
Holdings [Line Items]  
Percent of Net Asset Value 131.80%
C000000085 | Datadog, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000000085 | Snowflake, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000000085 | Comfort Systems USA, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000000085 | Astera Labs, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000000085 | Robinhood Markets, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000000085 | Teradyne, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000000085 | Lumentum Holdings, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000000085 | Fastenal Co.  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000000085 | Rocket Lab Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000000085 | Chipotle Mexican Grill, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000000085 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000000085 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000000085 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000000085 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000000085 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000000085 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000000085 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000000085 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000000085 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 23.60%
C000000085 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000000085 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000000085 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 33.50%
C000000088 | Becton Dickinson and Co.  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000000088 | Enterprise Products Partners LP  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000000088 | Kimberly-Clark Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000000088 | Commerce Bancshares, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000000088 | Zimmer Biomet Holdings, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000000088 | Henry Schein, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000000088 | Labcorp Holdings, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000000088 | Evergy, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000000088 | Packaging Corp. of America  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000000088 | Xcel Energy, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000000088 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000000088 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000000088 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000000088 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
C000000088 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000000088 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000000088 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000000088 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000000088 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 16.10%
C000000088 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000000088 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 18.40%
C000000088 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
C000050283 | US Treasury Bond  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000050283 | Uniform Mortgage Backed Security TBA  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
C000050283 | Citigroup Global Markets, Inc. Repurchase Agreement  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000050283 | Canadian Imperial Bank of Commerce Repurchase Agreement  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000050283 | Saudi Government International Bond  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000050283 | Republic of South Africa Government International Bond  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000050283 | Colombian TES  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000050283 | United Mexican States  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000050283 | Abu Dhabi Government International Bond  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000050283 | Petroleos Mexicanos  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000050283 | AssetType:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value (2.50%)
C000050283 | Municipal Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000050283 | Corporate Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 38.70%
C000050283 | Structured Products  
Holdings [Line Items]  
Percent of Net Asset Value 33.50%
C000050283 | Governments  
Holdings [Line Items]  
Percent of Net Asset Value 25.60%
C000050283 | Warrants  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000050283 | Convertible Corporate Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000050283 | Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000050283 | Bank Loan Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000050278 | Taiwan Semiconductor Manufacturing Co., Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000050278 | TotalEnergies SE  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000050278 | ASML Holding NV  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000050278 | Schneider Electric SE  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000050278 | Mizuho Financial Group, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000050278 | Tokyo Electron, Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000050278 | Novartis AG  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000050278 | Hitachi, Ltd.  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000050278 | AstraZeneca PLC  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000050278 | Linde PLC  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000050278 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000050278 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000050278 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000050278 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000050278 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000050278 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000050278 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000050278 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 17.20%
C000050278 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000050278 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 26.50%
C000050278 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000050278 | France  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000050278 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 23.50%
C000050278 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000050278 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000050278 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 14.20%
C000050278 | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000050278 | Other  
Holdings [Line Items]  
Percent of Net Asset Value 28.20%
C000000082 | Federal Home Loan Mortgage Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000000082 | Government National Mortgage Association  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000000082 | Federal National Mortgage Association  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
C000000082 | The Goldman Sachs Group, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000000082 | US Treasury Bond  
Holdings [Line Items]  
Percent of Net Asset Value 11.20%
C000000082 | Uniform Mortgage Backed Security TBA  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000000082 | US Treasury Note  
Holdings [Line Items]  
Percent of Net Asset Value 18.30%
C000000082 | Morgan Stanley  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000000082 | Honeywell Aerospace, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000000082 | Government National Mortgage Association, Series 2025-1, Class GC  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000000082 | AssetType:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value (1.40%)
C000000082 | Municipal Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000000082 | Corporate Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 27.40%
C000000082 | Structured Products  
Holdings [Line Items]  
Percent of Net Asset Value 43.70%
C000000082 | Governments  
Holdings [Line Items]  
Percent of Net Asset Value 30.20%
C000050281 | Federal Home Loan Mortgage Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000050281 | Federal National Mortgage Association  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000050281 | The Goldman Sachs Group, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000050281 | US Treasury Note  
Holdings [Line Items]  
Percent of Net Asset Value 22.50%
C000050281 | Keurig Dr. Pepper, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000050281 | Volkswagen Group of America Finance LLC  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000050281 | HCA, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000050281 | SBA Tower Trust  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050281 | Crown Castle, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050281 | Hyundai Capital America  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000050281 | AssetType:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000050281 | Corporate Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 39.20%
C000050281 | Structured Products  
Holdings [Line Items]  
Percent of Net Asset Value 34.60%
C000050281 | Governments  
Holdings [Line Items]  
Percent of Net Asset Value 23.10%
C000000074 | MKS, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000000074 | FirstCash Holdings, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000000074 | Moog, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000000074 | Marex Group PLC  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000000074 | Dave, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000074 | Dorman Products, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000074 | Alignment Healthcare, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000074 | Ensign Group, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000074 | Casella Waste Systems, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000074 | MYR Group, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000074 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000000074 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000000074 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000000074 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000000074 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000000074 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000000074 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000000074 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000000074 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 19.90%
C000000074 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 28.50%
C000000074 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 8.20%
C000000074 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 21.20%
C000000074 | Investment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000000084 | Pinnacle Financial Partners, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000000084 | Columbia Banking System, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000000084 | Curbline Properties Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000000084 | PennyMac Financial Services, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000000084 | CareTrust REIT, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000000084 | Hut 8 Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000000084 | Cytokinetics, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000000084 | Vishay Intertechnology, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000084 | HA Sustainable Infrastructure Capital, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000084 | Arcosa, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000000084 | Sector:Short-Term Investments & Other Net Assets  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000000084 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000000084 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000000084 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000000084 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000000084 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000000084 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000000084 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000000084 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000000084 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
C000000084 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 26.20%
C000000084 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 7.10%