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Shareholder Report, Holdings (Details)
Oct. 31, 2024
C000240570 | Other Assets Less Liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000240570 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000240570 | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 23.80%
C000240570 | India  
Holdings [Line Items]  
Percent of Net Asset Value 18.90%
C000240570 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000240570 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000240570 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000240570 | Indonesia  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000240570 | Philippines  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000240570 | United Arab Emirates  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000240570 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000240570 | Poland  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000240570 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000240569 | Other Assets Less Liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000240569 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000240569 | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 23.80%
C000240569 | India  
Holdings [Line Items]  
Percent of Net Asset Value 18.90%
C000240569 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000240569 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000240569 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000240569 | Indonesia  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000240569 | Philippines  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000240569 | United Arab Emirates  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000240569 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000240569 | Poland  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000240569 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000240571 | Other Assets Less Liabilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
C000240571 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000240571 | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 23.80%
C000240571 | India  
Holdings [Line Items]  
Percent of Net Asset Value 18.90%
C000240571 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000240571 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000240571 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000240571 | Indonesia  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000240571 | Philippines  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000240571 | United Arab Emirates  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000240571 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000240571 | Poland  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000240571 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000220890 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
C000220890 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000220890 | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 20.00%
C000220890 | India  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
C000220890 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000220890 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000220890 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000220890 | China  
Holdings [Line Items]  
Percent of Net Asset Value 27.50%
C000220890 | Malaysia  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000220890 | Saudi Arabia  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000220890 | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000220890 | South Africa  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000220890 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000220892 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
C000220892 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000220892 | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 20.00%
C000220892 | India  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
C000220892 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000220892 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000220892 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000220892 | China  
Holdings [Line Items]  
Percent of Net Asset Value 27.50%
C000220892 | Malaysia  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000220892 | Saudi Arabia  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000220892 | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000220892 | South Africa  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000220892 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000220891 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
C000220891 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
C000220891 | Taiwan  
Holdings [Line Items]  
Percent of Net Asset Value 20.00%
C000220891 | India  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
C000220891 | South Korea  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000220891 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000220891 | Mexico  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000220891 | China  
Holdings [Line Items]  
Percent of Net Asset Value 27.50%
C000220891 | Malaysia  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000220891 | Saudi Arabia  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000220891 | Thailand  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000220891 | South Africa  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000220891 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000242837 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
C000242837 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000242837 | India  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000242837 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000242837 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 67.00%
C000242837 | China  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000242837 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000242837 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000242837 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000242837 | France  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000242837 | Spain  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000242837 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000242837 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000242836 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
C000242836 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000242836 | India  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000242836 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000242836 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 67.00%
C000242836 | China  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000242836 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000242836 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000242836 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000242836 | France  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000242836 | Spain  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000242836 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000242836 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000242835 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
C000242835 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000242835 | India  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000242835 | Brazil  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000242835 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 67.00%
C000242835 | China  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000242835 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
C000242835 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000242835 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000242835 | France  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000242835 | Spain  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000242835 | Canada  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000242835 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000220887 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value (3.50%)
C000220887 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000220887 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.20%
C000220887 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 22.40%
C000220887 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000220887 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000220887 | France  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000220887 | Spain  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000220887 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000220887 | Australia  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000220887 | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000220887 | Denmark  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000220887 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000220889 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value (3.50%)
C000220889 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000220889 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.20%
C000220889 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 22.40%
C000220889 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000220889 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000220889 | France  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000220889 | Spain  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000220889 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000220889 | Australia  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000220889 | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000220889 | Denmark  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000220889 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000220888 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value (3.50%)
C000220888 | Other Regions_  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
C000220888 | United States  
Holdings [Line Items]  
Percent of Net Asset Value 8.20%
C000220888 | Japan  
Holdings [Line Items]  
Percent of Net Asset Value 22.40%
C000220888 | Switzerland  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000220888 | United Kingdom  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
C000220888 | France  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
C000220888 | Spain  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000220888 | Germany  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000220888 | Australia  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000220888 | Netherlands  
Holdings [Line Items]  
Percent of Net Asset Value 4.30%
C000220888 | Denmark  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000220888 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000004878 | Apple, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000004878 | Microsoft Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000004878 | NVIDIA Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000004878 | Amazon.com, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000004878 | Meta Platforms, Inc., A, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000004878 | Alphabet, Inc., A, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000004878 | Walmart, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000004878 | Alphabet, Inc., C, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000004878 | Costco Wholesale Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000004878 | Berkshire Hathaway, Inc., B, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000004878 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000004878 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
C000004878 | Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 68.00%
C000004878 | Warrants  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004878 | Rights  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004878 | Asset-Backed Securities  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004878 | Other Interests  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004879 | Apple, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000004879 | Microsoft Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000004879 | NVIDIA Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000004879 | Amazon.com, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000004879 | Meta Platforms, Inc., A, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000004879 | Alphabet, Inc., A, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000004879 | Walmart, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000004879 | Alphabet, Inc., C, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000004879 | Costco Wholesale Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000004879 | Berkshire Hathaway, Inc., B, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000004879 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000004879 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
C000004879 | Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 68.00%
C000004879 | Warrants  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004879 | Rights  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004879 | Asset-Backed Securities  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004879 | Other Interests  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004880 | Apple, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000004880 | Microsoft Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000004880 | NVIDIA Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000004880 | Amazon.com, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000004880 | Meta Platforms, Inc., A, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000004880 | Alphabet, Inc., A, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000004880 | Walmart, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000004880 | Alphabet, Inc., C, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000004880 | Costco Wholesale Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000004880 | Berkshire Hathaway, Inc., B, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000004880 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000004880 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
C000004880 | Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 68.00%
C000004880 | Warrants  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004880 | Rights  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004880 | Asset-Backed Securities  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004880 | Other Interests  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004882 | Apple, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000004882 | Microsoft Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000004882 | NVIDIA Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000004882 | Amazon.com, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000004882 | Meta Platforms, Inc., A, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000004882 | Alphabet, Inc., A, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000004882 | Walmart, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000004882 | Alphabet, Inc., C, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000004882 | Costco Wholesale Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000004882 | Berkshire Hathaway, Inc., B, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000004882 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000004882 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
C000004882 | Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 68.00%
C000004882 | Warrants  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004882 | Rights  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004882 | Asset-Backed Securities  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000004882 | Other Interests  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000173964 | Apple, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000173964 | Microsoft Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000173964 | NVIDIA Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000173964 | Amazon.com, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000173964 | Meta Platforms, Inc., A, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000173964 | Alphabet, Inc., A, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000173964 | Walmart, Inc., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000173964 | Alphabet, Inc., C, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000173964 | Costco Wholesale Corp., , , 0  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000173964 | Berkshire Hathaway, Inc., B, , 0  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000173964 | Liabilities in Excess of Other Assets  
Holdings [Line Items]  
Percent of Net Asset Value 12.30%
C000173964 | Short-Term Securities  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
C000173964 | Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 68.00%
C000173964 | Warrants  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000173964 | Rights  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000173964 | Asset-Backed Securities  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000173964 | Other Interests  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%