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Shareholder Report, Holdings (Details)
Apr. 30, 2025
C000030894 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000030894 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030894 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000030894 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000030894 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000030894 | Common Stock, Elevance Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000030894 | Common Stock, Becton Dickinson & Co., Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000030894 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000030894 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000030894 | Common Stock, Prosus NV, Broadline Retail, China  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Percent of Total Investments 27.00%
C000030894 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000030894 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000030894 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000030894 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000030894 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000030894 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000030894 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000030894 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030894 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030894 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000030894 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000030894 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
C000030894 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 51.20%
C000030894 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000030894 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000030894 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000030894 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000030894 | France  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000030894 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000030894 | China  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030894 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000030894 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000030894 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000030894 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000030894 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
C000030894 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 5.40% [2]
C000030894 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030894 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030896 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000030896 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030896 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000030896 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000030896 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000030896 | Common Stock, Elevance Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000030896 | Common Stock, Becton Dickinson & Co., Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000030896 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000030896 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000030896 | Common Stock, Prosus NV, Broadline Retail, China  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Percent of Total Investments 27.00%
C000030896 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000030896 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000030896 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000030896 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000030896 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000030896 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000030896 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000030896 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030896 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030896 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000030896 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000030896 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
C000030896 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 51.20%
C000030896 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000030896 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000030896 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000030896 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000030896 | France  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000030896 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000030896 | China  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030896 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000030896 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000030896 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000030896 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000030896 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [3]
C000030896 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 5.40% [4]
C000030896 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030896 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030895 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000030895 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030895 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000030895 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000030895 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000030895 | Common Stock, Elevance Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000030895 | Common Stock, Becton Dickinson & Co., Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000030895 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000030895 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000030895 | Common Stock, Prosus NV, Broadline Retail, China  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Percent of Total Investments 27.00%
C000030895 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000030895 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000030895 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000030895 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000030895 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000030895 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000030895 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000030895 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030895 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030895 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000030895 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000030895 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
C000030895 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 51.20%
C000030895 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000030895 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000030895 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000030895 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000030895 | France  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000030895 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000030895 | China  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030895 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000030895 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000030895 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000030895 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000030895 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [5]
C000030895 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 5.40% [6]
C000030895 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030895 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000179766 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000179766 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000179766 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000179766 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000179766 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000179766 | Common Stock, Elevance Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000179766 | Common Stock, Becton Dickinson & Co., Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000179766 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000179766 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000179766 | Common Stock, Prosus NV, Broadline Retail, China  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
Percent of Total Investments 27.00%
C000179766 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000179766 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000179766 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000179766 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000179766 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000179766 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000179766 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000179766 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000179766 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000179766 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000179766 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000179766 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
C000179766 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 51.20%
C000179766 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000179766 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000179766 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000179766 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000179766 | France  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000179766 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000179766 | China  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000179766 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000179766 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000179766 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000179766 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
C000179766 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [7]
C000179766 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 5.40% [8]
C000179766 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000179766 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030897 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000030897 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030897 | Common Stock, Prosus NV, Broadline Retail, China  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000030897 | Common Stock, Imperial Oil Ltd., Oil, Gas & Consumable Fuels, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000030897 | Common Stock, Shell plc, Oil, Gas & Consumable Fuels, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000030897 | Common Stock, Cie Financiere Richemont SA (Registered), Textiles, Apparel & Luxury Goods, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000030897 | Common Stock, Fomento Economico Mexicano SAB de CV, Beverages, Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000030897 | Common Stock, Unilever plc, Personal Care Products, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000030897 | Common Stock, Danone SA, Food Products, France  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000030897 | Common Stock, BAE Systems plc, Aerospace & Defense, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Percent of Total Investments 28.40%
C000030897 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000030897 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 19.20%
C000030897 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000030897 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000030897 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030897 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000030897 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000030897 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000030897 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000030897 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000030897 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000030897 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000030897 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 11.80%
C000030897 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000030897 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
C000030897 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000030897 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030897 | France  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000030897 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000030897 | China  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000030897 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000030897 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000030897 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 88.90%
C000030897 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000030897 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [9]
C000030897 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000030897 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000030899 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000030899 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030899 | Common Stock, Prosus NV, Broadline Retail, China  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000030899 | Common Stock, Imperial Oil Ltd., Oil, Gas & Consumable Fuels, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000030899 | Common Stock, Shell plc, Oil, Gas & Consumable Fuels, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000030899 | Common Stock, Cie Financiere Richemont SA (Registered), Textiles, Apparel & Luxury Goods, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000030899 | Common Stock, Fomento Economico Mexicano SAB de CV, Beverages, Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000030899 | Common Stock, Unilever plc, Personal Care Products, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000030899 | Common Stock, Danone SA, Food Products, France  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000030899 | Common Stock, BAE Systems plc, Aerospace & Defense, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Percent of Total Investments 28.40%
C000030899 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000030899 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 19.20%
C000030899 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000030899 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000030899 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030899 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000030899 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000030899 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000030899 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000030899 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000030899 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000030899 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000030899 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 11.80%
C000030899 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000030899 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
C000030899 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000030899 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030899 | France  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000030899 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000030899 | China  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000030899 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000030899 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000030899 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 88.90%
C000030899 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000030899 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [10]
C000030899 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000030899 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000030898 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000030898 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030898 | Common Stock, Prosus NV, Broadline Retail, China  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000030898 | Common Stock, Imperial Oil Ltd., Oil, Gas & Consumable Fuels, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000030898 | Common Stock, Shell plc, Oil, Gas & Consumable Fuels, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000030898 | Common Stock, Cie Financiere Richemont SA (Registered), Textiles, Apparel & Luxury Goods, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000030898 | Common Stock, Fomento Economico Mexicano SAB de CV, Beverages, Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000030898 | Common Stock, Unilever plc, Personal Care Products, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000030898 | Common Stock, Danone SA, Food Products, France  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000030898 | Common Stock, BAE Systems plc, Aerospace & Defense, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Percent of Total Investments 28.40%
C000030898 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000030898 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 19.20%
C000030898 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000030898 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000030898 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030898 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000030898 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000030898 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000030898 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000030898 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000030898 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000030898 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000030898 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 11.80%
C000030898 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000030898 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
C000030898 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000030898 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030898 | France  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000030898 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000030898 | China  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000030898 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000030898 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000030898 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 88.90%
C000030898 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000030898 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [11]
C000030898 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000030898 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000179770 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000179770 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000179770 | Common Stock, Prosus NV, Broadline Retail, China  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000179770 | Common Stock, Imperial Oil Ltd., Oil, Gas & Consumable Fuels, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000179770 | Common Stock, Shell plc, Oil, Gas & Consumable Fuels, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000179770 | Common Stock, Cie Financiere Richemont SA (Registered), Textiles, Apparel & Luxury Goods, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000179770 | Common Stock, Fomento Economico Mexicano SAB de CV, Beverages, Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000179770 | Common Stock, Unilever plc, Personal Care Products, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000179770 | Common Stock, Danone SA, Food Products, France  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000179770 | Common Stock, BAE Systems plc, Aerospace & Defense, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
Percent of Total Investments 28.40%
C000179770 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000179770 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 19.20%
C000179770 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000179770 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000179770 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000179770 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000179770 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000179770 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000179770 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000179770 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000179770 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000179770 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000179770 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 11.80%
C000179770 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000179770 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
C000179770 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000179770 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000179770 | France  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000179770 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000179770 | China  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000179770 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000179770 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000179770 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 88.90%
C000179770 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000179770 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [12]
C000179770 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000179770 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000030900 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000030900 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000030900 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000030900 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000030900 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000030900 | Common Stock, Elevance Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000030900 | Common Stock, Becton Dickinson & Co., Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000030900 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000030900 | Common Stock, Bank of New York Mellon Corp. (The), Capital Markets, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000030900 | Common Stock, Colgate-Palmolive Co., Household Products, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Percent of Total Investments 41.40%
C000030900 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000030900 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000030900 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000030900 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000030900 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000030900 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 15.20%
C000030900 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000030900 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000030900 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000030900 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000030900 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000030900 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 74.70%
C000030900 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000030900 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000030900 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 8.80% [13]
C000030900 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000030900 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000030900 | Convertible Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000030902 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000030902 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000030902 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000030902 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000030902 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000030902 | Common Stock, Elevance Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000030902 | Common Stock, Becton Dickinson & Co., Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000030902 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000030902 | Common Stock, Bank of New York Mellon Corp. (The), Capital Markets, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000030902 | Common Stock, Colgate-Palmolive Co., Household Products, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Percent of Total Investments 41.40%
C000030902 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000030902 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000030902 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000030902 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000030902 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000030902 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 15.20%
C000030902 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000030902 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000030902 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000030902 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000030902 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000030902 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 74.70%
C000030902 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000030902 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000030902 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 8.80% [14]
C000030902 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000030902 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000030902 | Convertible Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000030901 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000030901 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000030901 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000030901 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000030901 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000030901 | Common Stock, Elevance Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000030901 | Common Stock, Becton Dickinson & Co., Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000030901 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000030901 | Common Stock, Bank of New York Mellon Corp. (The), Capital Markets, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000030901 | Common Stock, Colgate-Palmolive Co., Household Products, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Percent of Total Investments 41.40%
C000030901 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000030901 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000030901 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000030901 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000030901 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000030901 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 15.20%
C000030901 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000030901 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000030901 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000030901 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000030901 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000030901 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 74.70%
C000030901 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000030901 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000030901 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 8.80% [15]
C000030901 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000030901 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000030901 | Convertible Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000179773 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000179773 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000179773 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000179773 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000179773 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000179773 | Common Stock, Elevance Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000179773 | Common Stock, Becton Dickinson & Co., Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000179773 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000179773 | Common Stock, Bank of New York Mellon Corp. (The), Capital Markets, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000179773 | Common Stock, Colgate-Palmolive Co., Household Products, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
Percent of Total Investments 41.40%
C000179773 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000179773 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000179773 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000179773 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000179773 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000179773 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 15.20%
C000179773 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000179773 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000179773 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000179773 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000179773 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000179773 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 74.70%
C000179773 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000179773 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000179773 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 8.80% [16]
C000179773 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000179773 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000179773 | Convertible Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000030903 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000030903 | Common Stock, Wheaton Precious Metals Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000030903 | Commodity, Silver bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000030903 | Common Stock, Agnico Eagle Mines Ltd., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000030903 | Common Stock, Northern Star Resources Ltd., Metals & Mining, Australia  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000030903 | Common Stock, Newmont Corp., Metals & Mining, United States  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000030903 | Common Stock, Alamos Gold, Inc., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030903 | Common Stock, Kinross Gold Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030903 | Common Stock, Dundee Precious Metals, Inc., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030903 | Common Stock, Franco-Nevada Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Percent of Total Investments 66.20%
C000030903 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 80.70%
C000030903 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000030903 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
C000030903 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000030903 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 53.30%
C000030903 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000030903 | Australia  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000030903 | South Africa  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000030903 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 80.60%
C000030903 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000030903 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 4.20% [17]
C000030903 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000030903 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000030903 | Right  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000030905 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000030905 | Common Stock, Wheaton Precious Metals Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000030905 | Commodity, Silver bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000030905 | Common Stock, Agnico Eagle Mines Ltd., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000030905 | Common Stock, Northern Star Resources Ltd., Metals & Mining, Australia  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000030905 | Common Stock, Newmont Corp., Metals & Mining, United States  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000030905 | Common Stock, Alamos Gold, Inc., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030905 | Common Stock, Kinross Gold Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030905 | Common Stock, Dundee Precious Metals, Inc., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030905 | Common Stock, Franco-Nevada Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Percent of Total Investments 66.20%
C000030905 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 80.70%
C000030905 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000030905 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
C000030905 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000030905 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 53.30%
C000030905 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000030905 | Australia  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000030905 | South Africa  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000030905 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 80.60%
C000030905 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000030905 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 4.20% [18]
C000030905 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000030905 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000030905 | Right  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000030904 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000030904 | Common Stock, Wheaton Precious Metals Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000030904 | Commodity, Silver bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000030904 | Common Stock, Agnico Eagle Mines Ltd., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000030904 | Common Stock, Northern Star Resources Ltd., Metals & Mining, Australia  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000030904 | Common Stock, Newmont Corp., Metals & Mining, United States  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000030904 | Common Stock, Alamos Gold, Inc., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030904 | Common Stock, Kinross Gold Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030904 | Common Stock, Dundee Precious Metals, Inc., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030904 | Common Stock, Franco-Nevada Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Percent of Total Investments 66.20%
C000030904 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 80.70%
C000030904 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000030904 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
C000030904 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000030904 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 53.30%
C000030904 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000030904 | Australia  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000030904 | South Africa  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000030904 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 80.60%
C000030904 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000030904 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 4.20% [19]
C000030904 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000030904 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000030904 | Right  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000179778 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000179778 | Common Stock, Wheaton Precious Metals Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 11.40%
C000179778 | Commodity, Silver bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000179778 | Common Stock, Agnico Eagle Mines Ltd., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000179778 | Common Stock, Northern Star Resources Ltd., Metals & Mining, Australia  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000179778 | Common Stock, Newmont Corp., Metals & Mining, United States  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000179778 | Common Stock, Alamos Gold, Inc., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000179778 | Common Stock, Kinross Gold Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000179778 | Common Stock, Dundee Precious Metals, Inc., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000179778 | Common Stock, Franco-Nevada Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
Percent of Total Investments 66.20%
C000179778 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 80.70%
C000179778 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000179778 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
C000179778 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000179778 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 53.30%
C000179778 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000179778 | Australia  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000179778 | South Africa  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000179778 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 80.60%
C000179778 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000179778 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 4.20% [20]
C000179778 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000179778 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000179778 | Right  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000109583 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109583 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000109583 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000109583 | Common Stock, Cie Financiere Richemont SA (Registered), Textiles, Apparel & Luxury Goods, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000109583 | Common Stock, Unilever plc, Personal Care Products, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000109583 | Common Stock, Nestle SA (Registered), Food Products, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000109583 | Common Stock, Exxon Mobil Corp., Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000109583 | Common Stock, Jardine Matheson Holdings Ltd., Industrial Conglomerates, Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000109583 | Common Stock, KT&G Corp., Tobacco, South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000109583 | Common Stock, Power Corp. of Canada, Insurance, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Percent of Total Investments 28.20%
C000109583 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000109583 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000109583 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000109583 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000109583 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000109583 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109583 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000109583 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109583 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000109583 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 23.50%
C000109583 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000109583 | U.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000109583 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 49.80%
C000109583 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000109583 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000109583 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000109583 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000109583 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000109583 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000109583 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000109583 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000109583 | Chile  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000109583 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 63.50%
C000109583 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109583 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
C000109583 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 3.00% [21]
C000109583 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000109583 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000109583 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000109583 | Convertible Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000109583 | U.S. Treasury Obligation  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000109583 | Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000109583 | Foreign Government Security  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000109583 | Asset-Backed Security  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000109583 | Loan Assignment  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000109584 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109584 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000109584 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000109584 | Common Stock, Cie Financiere Richemont SA (Registered), Textiles, Apparel & Luxury Goods, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000109584 | Common Stock, Unilever plc, Personal Care Products, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000109584 | Common Stock, Nestle SA (Registered), Food Products, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000109584 | Common Stock, Exxon Mobil Corp., Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000109584 | Common Stock, Jardine Matheson Holdings Ltd., Industrial Conglomerates, Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000109584 | Common Stock, KT&G Corp., Tobacco, South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000109584 | Common Stock, Power Corp. of Canada, Insurance, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Percent of Total Investments 28.20%
C000109584 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000109584 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000109584 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000109584 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000109584 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000109584 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109584 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000109584 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109584 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000109584 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 23.50%
C000109584 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000109584 | U.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000109584 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 49.80%
C000109584 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000109584 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000109584 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000109584 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000109584 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000109584 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000109584 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000109584 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000109584 | Chile  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000109584 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 63.50%
C000109584 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109584 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
C000109584 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 3.00% [22]
C000109584 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000109584 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000109584 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000109584 | Convertible Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000109584 | U.S. Treasury Obligation  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000109584 | Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000109584 | Foreign Government Security  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000109584 | Asset-Backed Security  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000109584 | Loan Assignment  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000109585 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109585 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000109585 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000109585 | Common Stock, Cie Financiere Richemont SA (Registered), Textiles, Apparel & Luxury Goods, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000109585 | Common Stock, Unilever plc, Personal Care Products, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000109585 | Common Stock, Nestle SA (Registered), Food Products, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000109585 | Common Stock, Exxon Mobil Corp., Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000109585 | Common Stock, Jardine Matheson Holdings Ltd., Industrial Conglomerates, Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000109585 | Common Stock, KT&G Corp., Tobacco, South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000109585 | Common Stock, Power Corp. of Canada, Insurance, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Percent of Total Investments 28.20%
C000109585 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000109585 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000109585 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000109585 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000109585 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000109585 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109585 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000109585 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109585 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000109585 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 23.50%
C000109585 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000109585 | U.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000109585 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 49.80%
C000109585 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000109585 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000109585 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000109585 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000109585 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000109585 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000109585 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000109585 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000109585 | Chile  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000109585 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 63.50%
C000109585 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000109585 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
C000109585 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 3.00% [23]
C000109585 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000109585 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000109585 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000109585 | Convertible Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000109585 | U.S. Treasury Obligation  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000109585 | Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000109585 | Foreign Government Security  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000109585 | Asset-Backed Security  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000109585 | Loan Assignment  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000179790 | Commodity, Gold bullion, Commodities, United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000179790 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000179790 | Common Stock, British American Tobacco plc, Tobacco, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000179790 | Common Stock, Cie Financiere Richemont SA (Registered), Textiles, Apparel & Luxury Goods, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000179790 | Common Stock, Unilever plc, Personal Care Products, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000179790 | Common Stock, Nestle SA (Registered), Food Products, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000179790 | Common Stock, Exxon Mobil Corp., Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000179790 | Common Stock, Jardine Matheson Holdings Ltd., Industrial Conglomerates, Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000179790 | Common Stock, KT&G Corp., Tobacco, South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000179790 | Common Stock, Power Corp. of Canada, Insurance, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
Percent of Total Investments 28.20%
C000179790 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000179790 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000179790 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000179790 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000179790 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000179790 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000179790 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000179790 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000179790 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000179790 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 23.50%
C000179790 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000179790 | U.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000179790 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 49.80%
C000179790 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 10.40%
C000179790 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000179790 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000179790 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000179790 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000179790 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000179790 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000179790 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000179790 | Chile  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000179790 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 63.50%
C000179790 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000179790 | Corporate Bond  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
C000179790 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 3.00% [24]
C000179790 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000179790 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000179790 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000179790 | Convertible Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000179790 | U.S. Treasury Obligation  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000179790 | Preferred Stock  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000179790 | Foreign Government Security  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000179790 | Asset-Backed Security  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000179790 | Loan Assignment  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000030908 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000030908 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000030908 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030908 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000030908 | Common Stock, Alphabet, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000030908 | Common Stock, Schindler Holding AG, Machinery, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000030908 | Common Stock, Texas Instruments, Inc., Semiconductors & Semiconductor Equipment, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030908 | Common Stock, TE Connectivity plc, Electronic Equipment, Instruments & Components, Ireland  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000030908 | Common Stock, Home Depot, Inc. (The), Specialty Retail, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000030908 | Common Stock, Medtronic plc, Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
Percent of Total Investments 52.00%
C000030908 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000030908 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000030908 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 16.80%
C000030908 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 22.30%
C000030908 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 17.70%
C000030908 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030908 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030908 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030908 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000030908 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 95.50%
C000030908 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 1.20% [25]
C000030908 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000030908 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000030907 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000030907 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000030907 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000030907 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000030907 | Common Stock, Alphabet, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000030907 | Common Stock, Schindler Holding AG, Machinery, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000030907 | Common Stock, Texas Instruments, Inc., Semiconductors & Semiconductor Equipment, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000030907 | Common Stock, TE Connectivity plc, Electronic Equipment, Instruments & Components, Ireland  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000030907 | Common Stock, Home Depot, Inc. (The), Specialty Retail, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000030907 | Common Stock, Medtronic plc, Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
Percent of Total Investments 52.00%
C000030907 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000030907 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000030907 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 16.80%
C000030907 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 22.30%
C000030907 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 17.70%
C000030907 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030907 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000030907 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000030907 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000030907 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 95.50%
C000030907 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 1.20% [26]
C000030907 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000030907 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000124490 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000124490 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000124490 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000124490 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000124490 | Common Stock, Alphabet, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000124490 | Common Stock, Schindler Holding AG, Machinery, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000124490 | Common Stock, Texas Instruments, Inc., Semiconductors & Semiconductor Equipment, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000124490 | Common Stock, TE Connectivity plc, Electronic Equipment, Instruments & Components, Ireland  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000124490 | Common Stock, Home Depot, Inc. (The), Specialty Retail, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000124490 | Common Stock, Medtronic plc, Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
Percent of Total Investments 52.00%
C000124490 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000124490 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000124490 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 16.80%
C000124490 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 22.30%
C000124490 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 17.70%
C000124490 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000124490 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000124490 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000124490 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000124490 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 95.50%
C000124490 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 1.20% [27]
C000124490 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000124490 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000179782 | Common Stock, Meta Platforms, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000179782 | Common Stock, Oracle Corp., Software, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000179782 | Common Stock, Philip Morris International, Inc., Tobacco, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000179782 | Common Stock, Comcast Corp., Media, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000179782 | Common Stock, Alphabet, Inc., Interactive Media & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000179782 | Common Stock, Schindler Holding AG, Machinery, Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000179782 | Common Stock, Texas Instruments, Inc., Semiconductors & Semiconductor Equipment, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000179782 | Common Stock, TE Connectivity plc, Electronic Equipment, Instruments & Components, Ireland  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000179782 | Common Stock, Home Depot, Inc. (The), Specialty Retail, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000179782 | Common Stock, Medtronic plc, Health Care Equipment & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
Percent of Total Investments 52.00%
C000179782 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000179782 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000179782 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 16.80%
C000179782 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 22.30%
C000179782 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 17.70%
C000179782 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000179782 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000179782 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000179782 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000179782 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 95.50%
C000179782 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 1.20% [28]
C000179782 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000179782 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000228686 | Common Stock, Intrepid Potash, Inc., Chemicals, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000228686 | Common Stock, Insteel Industries, Inc., Building Products, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000228686 | Common Stock, Lincoln National Corp., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000228686 | Common Stock, TTM Technologies, Inc., Electronic Equipment, Instruments & Components, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000228686 | Common Stock, Lincoln Educational Services Corp., Diversified Consumer Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000228686 | Common Stock, Axis Capital Holdings Ltd., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000228686 | Common Stock, CECO Environmental Corp., Commercial Services & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000228686 | Common Stock, Louisiana-Pacific Corp., Paper & Forest Products, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000228686 | Common Stock, Ducommun, Inc., Aerospace & Defense, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000228686 | Common Stock, Whitestone REIT, Retail REITs, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Percent of Total Investments 8.90%
C000228686 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000228686 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000228686 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000228686 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000228686 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000228686 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000228686 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000228686 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
C000228686 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000228686 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000228686 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000228686 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 94.10%
C000228686 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 5.90% [29]
C000228686 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000228686 | Right  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [30]
C000228687 | Common Stock, Intrepid Potash, Inc., Chemicals, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000228687 | Common Stock, Insteel Industries, Inc., Building Products, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000228687 | Common Stock, Lincoln National Corp., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000228687 | Common Stock, TTM Technologies, Inc., Electronic Equipment, Instruments & Components, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000228687 | Common Stock, Lincoln Educational Services Corp., Diversified Consumer Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000228687 | Common Stock, Axis Capital Holdings Ltd., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000228687 | Common Stock, CECO Environmental Corp., Commercial Services & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000228687 | Common Stock, Louisiana-Pacific Corp., Paper & Forest Products, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000228687 | Common Stock, Ducommun, Inc., Aerospace & Defense, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000228687 | Common Stock, Whitestone REIT, Retail REITs, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Percent of Total Investments 8.90%
C000228687 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000228687 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000228687 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000228687 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000228687 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000228687 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000228687 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000228687 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
C000228687 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000228687 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000228687 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000228687 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 94.10%
C000228687 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 5.90% [31]
C000228687 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000228687 | Right  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [32]
C000228685 | Common Stock, Intrepid Potash, Inc., Chemicals, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000228685 | Common Stock, Insteel Industries, Inc., Building Products, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000228685 | Common Stock, Lincoln National Corp., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000228685 | Common Stock, TTM Technologies, Inc., Electronic Equipment, Instruments & Components, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000228685 | Common Stock, Lincoln Educational Services Corp., Diversified Consumer Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000228685 | Common Stock, Axis Capital Holdings Ltd., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000228685 | Common Stock, CECO Environmental Corp., Commercial Services & Supplies, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000228685 | Common Stock, Louisiana-Pacific Corp., Paper & Forest Products, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000228685 | Common Stock, Ducommun, Inc., Aerospace & Defense, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000228685 | Common Stock, Whitestone REIT, Retail REITs, United States  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
Percent of Total Investments 8.90%
C000228685 | Sector Others  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000228685 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000228685 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000228685 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000228685 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000228685 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000228685 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000228685 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
C000228685 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 12.20%
C000228685 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000228685 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000228685 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 94.10%
C000228685 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 5.90% [33]
C000228685 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000228685 | Right  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [34]
C000237506 | Common Stock, Axis Capital Holdings Ltd., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000237506 | Common Stock, Cardinal Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000237506 | Common Stock, Tenet Healthcare Corp., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000237506 | Common Stock, Expand Energy Corp., Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000237506 | Common Stock, Quanta Services, Inc., Construction & Engineering, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000237506 | Common Stock, Air Lease Corp., Trading Companies & Distributors, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000237506 | Common Stock, Old Republic International Corp., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000237506 | Common Stock, Evercore, Inc., Capital Markets, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000237506 | Common Stock, Quest Diagnostics, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000237506 | Common Stock, Cheesecake Factory, Inc. (The), Hotels, Restaurants & Leisure, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Percent of Total Investments 21.80%
C000237506 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000237506 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000237506 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000237506 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000237506 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000237506 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000237506 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 17.10%
C000237506 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000237506 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000237506 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 91.70%
C000237506 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 8.30% [35]
C000237506 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000237507 | Common Stock, Axis Capital Holdings Ltd., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000237507 | Common Stock, Cardinal Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000237507 | Common Stock, Tenet Healthcare Corp., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000237507 | Common Stock, Expand Energy Corp., Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000237507 | Common Stock, Quanta Services, Inc., Construction & Engineering, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000237507 | Common Stock, Air Lease Corp., Trading Companies & Distributors, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000237507 | Common Stock, Old Republic International Corp., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000237507 | Common Stock, Evercore, Inc., Capital Markets, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000237507 | Common Stock, Quest Diagnostics, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000237507 | Common Stock, Cheesecake Factory, Inc. (The), Hotels, Restaurants & Leisure, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Percent of Total Investments 21.80%
C000237507 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000237507 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000237507 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000237507 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000237507 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000237507 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000237507 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 17.10%
C000237507 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000237507 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000237507 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 91.70%
C000237507 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 8.30% [36]
C000237507 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000237508 | Common Stock, Axis Capital Holdings Ltd., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000237508 | Common Stock, Cardinal Health, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000237508 | Common Stock, Tenet Healthcare Corp., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000237508 | Common Stock, Expand Energy Corp., Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000237508 | Common Stock, Quanta Services, Inc., Construction & Engineering, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000237508 | Common Stock, Air Lease Corp., Trading Companies & Distributors, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000237508 | Common Stock, Old Republic International Corp., Insurance, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000237508 | Common Stock, Evercore, Inc., Capital Markets, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000237508 | Common Stock, Quest Diagnostics, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000237508 | Common Stock, Cheesecake Factory, Inc. (The), Hotels, Restaurants & Leisure, United States  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Percent of Total Investments 21.80%
C000237508 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000237508 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000237508 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000237508 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000237508 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000237508 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 20.40%
C000237508 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 17.10%
C000237508 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000237508 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000237508 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 91.70%
C000237508 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 8.30% [37]
C000237508 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000232393 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000232393 | Common Stock, Shell plc, Oil, Gas & Consumable Fuels, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000232393 | Common Stock, Wheaton Precious Metals Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000232393 | Master Limited Partnership, Enterprise Products Partners LP, Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000232393 | Common Stock, ONEOK, Inc., Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000232393 | Common Stock, CRH plc, Construction Materials, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000232393 | Common Stock, Nutrien Ltd., Chemicals, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000232393 | Common Stock, Extra Space Storage, Inc., Specialized REITs, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000232393 | Common Stock, FUCHS SE (Preference), Chemicals, Germany  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000232393 | Common Stock, Grupo Mexico SAB de CV, Metals & Mining, Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Percent of Total Investments 27.40%
C000232393 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000232393 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000232393 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 26.60%
C000232393 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000232393 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000232393 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000232393 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000232393 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000232393 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000232393 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 21.50%
C000232393 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000232393 | Investment Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000232393 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 44.50%
C000232393 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000232393 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000232393 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
C000232393 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000232393 | China  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000232393 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000232393 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000232393 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000232393 | Australia  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000232393 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 91.40%
C000232393 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000232393 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [38]
C000232393 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000232393 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000232393 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000232393 | Exchange Traded Fund  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000232392 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000232392 | Common Stock, Shell plc, Oil, Gas & Consumable Fuels, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000232392 | Common Stock, Wheaton Precious Metals Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000232392 | Master Limited Partnership, Enterprise Products Partners LP, Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000232392 | Common Stock, ONEOK, Inc., Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000232392 | Common Stock, CRH plc, Construction Materials, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000232392 | Common Stock, Nutrien Ltd., Chemicals, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000232392 | Common Stock, Extra Space Storage, Inc., Specialized REITs, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000232392 | Common Stock, FUCHS SE (Preference), Chemicals, Germany  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000232392 | Common Stock, Grupo Mexico SAB de CV, Metals & Mining, Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Percent of Total Investments 27.40%
C000232392 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000232392 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000232392 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 26.60%
C000232392 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000232392 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000232392 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000232392 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000232392 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000232392 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000232392 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 21.50%
C000232392 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000232392 | Investment Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000232392 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 44.50%
C000232392 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000232392 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000232392 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
C000232392 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000232392 | China  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000232392 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000232392 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000232392 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000232392 | Australia  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000232392 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 91.40%
C000232392 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000232392 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [39]
C000232392 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000232392 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000232392 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000232392 | Exchange Traded Fund  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000232391 | Common Stock, HCA Healthcare, Inc., Health Care Providers & Services, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000232391 | Common Stock, Shell plc, Oil, Gas & Consumable Fuels, United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000232391 | Common Stock, Wheaton Precious Metals Corp., Metals & Mining, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000232391 | Master Limited Partnership, Enterprise Products Partners LP, Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000232391 | Common Stock, ONEOK, Inc., Oil, Gas & Consumable Fuels, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000232391 | Common Stock, CRH plc, Construction Materials, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000232391 | Common Stock, Nutrien Ltd., Chemicals, Canada  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000232391 | Common Stock, Extra Space Storage, Inc., Specialized REITs, United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000232391 | Common Stock, FUCHS SE (Preference), Chemicals, Germany  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000232391 | Common Stock, Grupo Mexico SAB de CV, Metals & Mining, Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Percent of Total Investments 27.40%
C000232391 | Country Others  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000232391 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000232391 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 26.60%
C000232391 | Communication Services  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000232391 | Information Technology  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000232391 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000232391 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000232391 | Commodities  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000232391 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000232391 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 21.50%
C000232391 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
C000232391 | Investment Funds  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000232391 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 44.50%
C000232391 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000232391 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000232391 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
C000232391 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000232391 | China  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000232391 | Hong Kong  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000232391 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000232391 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000232391 | Australia  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000232391 | Common Stock  
Holdings [Line Items]  
Percent of Net Asset Value 91.40%
C000232391 | Commodity  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000232391 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [40]
C000232391 | Sector Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000232391 | Country Short Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000232391 | Master Limited Partnership  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
C000232391 | Exchange Traded Fund  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000108220 | AAA  
Holdings [Line Items]  
Percent of Total Investments 2.90%
C000108220 | AA  
Holdings [Line Items]  
Percent of Total Investments 8.40%
C000108220 | A  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000108220 | BBB  
Holdings [Line Items]  
Percent of Total Investments 7.80%
C000108220 | BB or lower  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000108220 | N/R (Not Rated)  
Holdings [Line Items]  
Percent of Total Investments 73.80%
C000108220 | N/A (not applicable)  
Holdings [Line Items]  
Percent of Total Investments 0.00% [41]
C000108220 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [41],[42]
C000108220 | Municipal Bond  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [43]
C000108221 | AAA  
Holdings [Line Items]  
Percent of Total Investments 2.90%
C000108221 | AA  
Holdings [Line Items]  
Percent of Total Investments 8.40%
C000108221 | A  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000108221 | BBB  
Holdings [Line Items]  
Percent of Total Investments 7.80%
C000108221 | BB or lower  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000108221 | N/R (Not Rated)  
Holdings [Line Items]  
Percent of Total Investments 73.80%
C000108221 | N/A (not applicable)  
Holdings [Line Items]  
Percent of Total Investments 0.00% [44]
C000108221 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [44],[45]
C000108221 | Municipal Bond  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [46]
C000108222 | AAA  
Holdings [Line Items]  
Percent of Total Investments 2.90%
C000108222 | AA  
Holdings [Line Items]  
Percent of Total Investments 8.40%
C000108222 | A  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000108222 | BBB  
Holdings [Line Items]  
Percent of Total Investments 7.80%
C000108222 | BB or lower  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000108222 | N/R (Not Rated)  
Holdings [Line Items]  
Percent of Total Investments 73.80%
C000108222 | N/A (not applicable)  
Holdings [Line Items]  
Percent of Total Investments 0.00% [47]
C000108222 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [47],[48]
C000108222 | Municipal Bond  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [49]
C000179786 | AAA  
Holdings [Line Items]  
Percent of Total Investments 2.90%
C000179786 | AA  
Holdings [Line Items]  
Percent of Total Investments 8.40%
C000179786 | A  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000179786 | BBB  
Holdings [Line Items]  
Percent of Total Investments 7.80%
C000179786 | BB or lower  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000179786 | N/R (Not Rated)  
Holdings [Line Items]  
Percent of Total Investments 73.80%
C000179786 | N/A (not applicable)  
Holdings [Line Items]  
Percent of Total Investments 0.00% [50]
C000179786 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [50],[51]
C000179786 | Municipal Bond  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [52]
C000247344 | AAA  
Holdings [Line Items]  
Percent of Total Investments 0.80%
C000247344 | AA  
Holdings [Line Items]  
Percent of Total Investments 5.90%
C000247344 | A  
Holdings [Line Items]  
Percent of Total Investments 5.40%
C000247344 | BBB  
Holdings [Line Items]  
Percent of Total Investments 7.20%
C000247344 | BB or lower  
Holdings [Line Items]  
Percent of Total Investments 12.20%
C000247344 | N/R (Not Rated)  
Holdings [Line Items]  
Percent of Total Investments 68.50%
C000247344 | N/A (not applicable)  
Holdings [Line Items]  
Percent of Total Investments 0.00% [53]
C000247344 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [53],[54]
C000247344 | Municipal Bond  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000247345 | AAA  
Holdings [Line Items]  
Percent of Total Investments 0.80%
C000247345 | AA  
Holdings [Line Items]  
Percent of Total Investments 5.90%
C000247345 | A  
Holdings [Line Items]  
Percent of Total Investments 5.40%
C000247345 | BBB  
Holdings [Line Items]  
Percent of Total Investments 7.20%
C000247345 | BB or lower  
Holdings [Line Items]  
Percent of Total Investments 12.20%
C000247345 | N/R (Not Rated)  
Holdings [Line Items]  
Percent of Total Investments 68.50%
C000247345 | N/A (not applicable)  
Holdings [Line Items]  
Percent of Total Investments 0.00% [55]
C000247345 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [55],[56]
C000247345 | Municipal Bond  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
C000247343 | AAA  
Holdings [Line Items]  
Percent of Total Investments 0.80%
C000247343 | AA  
Holdings [Line Items]  
Percent of Total Investments 5.90%
C000247343 | A  
Holdings [Line Items]  
Percent of Total Investments 5.40%
C000247343 | BBB  
Holdings [Line Items]  
Percent of Total Investments 7.20%
C000247343 | BB or lower  
Holdings [Line Items]  
Percent of Total Investments 12.20%
C000247343 | N/R (Not Rated)  
Holdings [Line Items]  
Percent of Total Investments 68.50%
C000247343 | N/A (not applicable)  
Holdings [Line Items]  
Percent of Total Investments 0.00% [57]
C000247343 | Short-Term Investment  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [57],[58]
C000247343 | Municipal Bond  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
[1] Less than 0.05%.
[2] Includes short-term commercial paper (1.5% of total investments) that settles in 90 days or less; long-term commercial paper (3.4% of total investments) that settles in 91 days or more; and other short-term investments (0.5% of total investments), such as U.S. treasury bills or money market funds.
[3] Less than 0.05%.
[4] Includes short-term commercial paper (1.5% of total investments) that settles in 90 days or less; long-term commercial paper (3.4% of total investments) that settles in 91 days or more; and other short-term investments (0.5% of total investments), such as U.S. treasury bills or money market funds.
[5] Less than 0.05%.
[6] Includes short-term commercial paper (1.5% of total investments) that settles in 90 days or less; long-term commercial paper (3.4% of total investments) that settles in 91 days or more; and other short-term investments (0.5% of total investments), such as U.S. treasury bills or money market funds.
[7] Less than 0.05%.
[8] Includes short-term commercial paper (1.5% of total investments) that settles in 90 days or less; long-term commercial paper (3.4% of total investments) that settles in 91 days or more; and other short-term investments (0.5% of total investments), such as U.S. treasury bills or money market funds.
[9] Includes short-term commercial paper (0.7% of total investments) that settles in 90 days or less; long-term commercial paper (0.8% of total investments) that settles in 91 days or more; and other short-term investments (0.7% of total investments), such as U.S. treasury bills or money market funds.
[10] Includes short-term commercial paper (0.7% of total investments) that settles in 90 days or less; long-term commercial paper (0.8% of total investments) that settles in 91 days or more; and other short-term investments (0.7% of total investments), such as U.S. treasury bills or money market funds.
[11] Includes short-term commercial paper (0.7% of total investments) that settles in 90 days or less; long-term commercial paper (0.8% of total investments) that settles in 91 days or more; and other short-term investments (0.7% of total investments), such as U.S. treasury bills or money market funds.
[12] Includes short-term commercial paper (0.7% of total investments) that settles in 90 days or less; long-term commercial paper (0.8% of total investments) that settles in 91 days or more; and other short-term investments (0.7% of total investments), such as U.S. treasury bills or money market funds.
[13] Includes short-term commercial paper (1.6% of total investments) that settles in 90 days or less; long-term commercial paper (2.2% of total investments) that settles in 91 days or more; and other short-term investments (5.0% of total investments), such as U.S. treasury bills or money market funds.
[14] Includes short-term commercial paper (1.6% of total investments) that settles in 90 days or less; long-term commercial paper (2.2% of total investments) that settles in 91 days or more; and other short-term investments (5.0% of total investments), such as U.S. treasury bills or money market funds.
[15] Includes short-term commercial paper (1.6% of total investments) that settles in 90 days or less; long-term commercial paper (2.2% of total investments) that settles in 91 days or more; and other short-term investments (5.0% of total investments), such as U.S. treasury bills or money market funds.
[16] Includes short-term commercial paper (1.6% of total investments) that settles in 90 days or less; long-term commercial paper (2.2% of total investments) that settles in 91 days or more; and other short-term investments (5.0% of total investments), such as U.S. treasury bills or money market funds.
[17] Includes short-term commercial paper (3.5% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.7% of total investments), such as U.S. treasury bills or money market funds.
[18] Includes short-term commercial paper (3.5% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.7% of total investments), such as U.S. treasury bills or money market funds.
[19] Includes short-term commercial paper (3.5% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.7% of total investments), such as U.S. treasury bills or money market funds.
[20] Includes short-term commercial paper (3.5% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.7% of total investments), such as U.S. treasury bills or money market funds.
[21] Includes short-term commercial paper (2.5% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.5% of total investments), such as U.S. treasury bills or money market funds.
[22] Includes short-term commercial paper (2.5% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.5% of total investments), such as U.S. treasury bills or money market funds.
[23] Includes short-term commercial paper (2.5% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.5% of total investments), such as U.S. treasury bills or money market funds.
[24] Includes short-term commercial paper (2.5% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.5% of total investments), such as U.S. treasury bills or money market funds.
[25] Includes short-term commercial paper (1.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.2% of total investments), such as U.S. treasury bills or money market funds.
[26] Includes short-term commercial paper (1.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.2% of total investments), such as U.S. treasury bills or money market funds.
[27] Includes short-term commercial paper (1.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.2% of total investments), such as U.S. treasury bills or money market funds.
[28] Includes short-term commercial paper (1.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.2% of total investments), such as U.S. treasury bills or money market funds.
[29] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (5.9% of total investments), such as U.S. treasury bills or money market funds.
[30] Less than 0.05%.
[31] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (5.9% of total investments), such as U.S. treasury bills or money market funds.
[32] Less than 0.05%.
[33] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (5.9% of total investments), such as U.S. treasury bills or money market funds.
[34] Less than 0.05%.
[35] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (8.3% of total investments), such as U.S. treasury bills or money market funds.
[36] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (8.3% of total investments), such as U.S. treasury bills or money market funds.
[37] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (8.3% of total investments), such as U.S. treasury bills or money market funds.
[38] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.6% of total investments), such as U.S. treasury bills or money market funds.
[39] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.6% of total investments), such as U.S. treasury bills or money market funds.
[40] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.6% of total investments), such as U.S. treasury bills or money market funds.
[41] Less than 0.05%.
[42] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.0% of total investments), such as U.S. treasury bills or money market funds.
[43] Total investments include the Fund’s assets attributable to financial leverage. Inverse floating rate interests (“Inverse Floaters”) are issued in connection with municipal tender option bond (“TOB”) financing transactions (secured borrowing) to generate leverage for the Fund.
[44] Less than 0.05%.
[45] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.0% of total investments), such as U.S. treasury bills or money market funds.
[46] Total investments include the Fund’s assets attributable to financial leverage. Inverse floating rate interests (“Inverse Floaters”) are issued in connection with municipal tender option bond (“TOB”) financing transactions (secured borrowing) to generate leverage for the Fund.
[47] Less than 0.05%.
[48] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.0% of total investments), such as U.S. treasury bills or money market funds.
[49] Total investments include the Fund’s assets attributable to financial leverage. Inverse floating rate interests (“Inverse Floaters”) are issued in connection with municipal tender option bond (“TOB”) financing transactions (secured borrowing) to generate leverage for the Fund.
[50] Less than 0.05%.
[51] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.0% of total investments), such as U.S. treasury bills or money market funds.
[52] Total investments include the Fund’s assets attributable to financial leverage. Inverse floating rate interests (“Inverse Floaters”) are issued in connection with municipal tender option bond (“TOB”) financing transactions (secured borrowing) to generate leverage for the Fund.
[53] Less than 0.05%.
[54] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.0% of total investments), such as U.S. treasury bills or money market funds.
[55] Less than 0.05%.
[56] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.0% of total investments), such as U.S. treasury bills or money market funds.
[57] Less than 0.05%.
[58] Includes short-term commercial paper (0.0% of total investments) that settles in 90 days or less; long-term commercial paper (0.0% of total investments) that settles in 91 days or more; and other short-term investments (0.0% of total investments), such as U.S. treasury bills or money market funds.