Shareholder Report, Line Graph (Details) - USD ($) |
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| AGF U.S. Market Neutral Anti-Beta Fund | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000.00 | $ 10,315.00 | $ 10,474.88 | $ 10,950.44 | $ 10,418.25 | $ 10,346.36 | $ 10,708.49 | $ 11,670.11 | $ 11,701.62 | $ 11,438.33 | $ 11,066.59 | $ 11,097.57 | $ 12,048.64 | $ 11,329.33 | $ 11,060.83 | $ 10,890.49 | $ 11,076.72 | $ 10,042.15 | $ 10,202.83 | $ 9,980.40 | $ 9,990.39 | $ 10,223.16 | $ 10,388.78 | $ 10,668.23 | $ 10,342.85 | $ 10,332.51 | $ 10,384.17 | $ 9,981.27 | $ 10,017.20 | $ 9,924.04 | $ 9,919.08 | $ 9,699.10 | $ 9,672.52 | $ 9,964.84 | $ 10,025.81 | $ 9,967.74 | $ 10,365.75 | $ 10,285.81 | $ 10,418.75 | $ 10,471.55 | $ 10,959.59 | $ 10,986.68 | $ 11,412.49 | $ 11,011.32 | $ 10,900.74 | $ 11,168.20 | $ 11,028.29 | $ 11,781.12 | $ 11,333.12 | $ 11,551.25 | $ 12,571.33 | $ 12,280.25 | $ 12,233.27 | $ 11,884.89 | $ 11,605.66 | $ 12,251.57 | $ 12,338.77 | $ 13,414.65 | $ 12,990.07 | $ 13,140.79 | $ 12,698.09 | $ 13,026.26 | $ 12,418.74 | $ 12,361.13 | $ 12,009.56 | $ 10,266.04 | $ 10,007.95 | $ 10,151.55 | $ 9,037.65 | $ 8,984.07 | $ 8,874.14 | $ 8,702.99 | $ 8,846.96 | $ 8,982.76 | $ 8,970.19 | $ 8,948.77 | $ 8,761.02 | $ 8,934.11 | $ 9,276.78 | $ 9,759.81 | $ 9,384.61 | $ 9,607.40 | $ 10,376.33 | $ 10,615.20 | $ 11,379.79 | $ 10,473.80 | $ 10,321.93 | $ 10,657.10 | $ 10,866.57 | $ 10,788.02 | $ 11,212.82 | $ 10,467.06 | $ 10,430.04 | $ 10,768.54 | $ 11,107.04 | $ 10,472.35 | $ 9,932.86 | $ 9,425.11 | $ 9,948.73 | $ 10,472.35 | $ 11,181.08 | $ 10,636.31 | $ 9,547.57 | $ 10,345.54 | $ 10,199.44 | $ 10,182.58 | $ 10,660.24 | $ 10,845.68 | $ 11,003.03 | $ 10,901.88 | $ 11,289.62 | $ 11,059.22 | $ 11,121.04 | $ 10,564.70 | $ 10,788.19 | $ 10,596.27 | $ 11,305.79 | $ 12,090.92 | $ 11,747.79 | $ 11,189.48 | $ 10,317.12 | $ 7,920.92 | $ 7,882.30 | $ 7,645.78 | $ 7,100.35 | $ 7,187.23 | $ 7,109.46 | $ 7,025.35 | $ 6,941.24 | $ 6,901.67 | $ 6,179.34 | $ 5,689.54 | $ 5,531.23 |
| Dow Jones U.S. Thematic Market Neutral Low Beta Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,000.00 | 10,378.21 | 10,534.10 | 11,066.53 | 10,602.72 | 10,618.25 | 11,012.71 | 12,039.39 | 12,135.55 | 11,849.56 | 11,475.49 | 11,542.67 | 12,540.99 | 11,790.46 | 11,529.62 | 11,330.58 | 11,563.88 | 10,486.90 | 10,666.89 | 10,439.90 | 10,453.15 | 10,691.74 | 10,874.63 | 11,181.63 | 10,831.26 | 10,825.88 | 10,893.06 | 10,474.27 | 10,516.29 | 10,418.27 | 10,428.93 | 10,199.04 | 10,175.03 | 10,491.97 | 10,555.34 | 10,491.58 | 10,911.05 | 10,824.24 | 10,958.97 | 11,016.46 | 11,542.47 | 11,564.65 | 12,009.52 | 11,580.07 | 11,460.29 | 11,738.71 | 11,575.49 | 12,361.14 | 11,879.84 | 12,094.10 | 13,163.40 | 12,850.98 | 12,787.78 | 12,442.85 | 12,146.03 | 12,818.12 | 12,906.11 | 14,035.17 | 13,591.83 | 13,770.58 | 13,297.38 | 13,713.36 | 13,102.40 | 13,052.95 | 12,700.70 | 10,813.75 | 10,555.01 | 10,710.95 | 9,540.87 | 9,494.71 | 9,384.92 | 9,207.18 | 9,367.76 | 9,515.53 | 9,509.01 | 9,496.06 | 9,298.68 | 9,478.63 | 9,856.26 | 10,366.23 | 9,972.07 | 10,220.14 | 11,041.59 | 11,306.40 | 12,136.37 | 11,138.20 | 10,984.04 | 11,364.91 | 11,614.22 | 11,570.23 | 12,109.52 | 10,867.28 | 11,026.66 | 11,364.48 | 11,713.84 | 10,898.14 | 10,281.41 | 9,507.84 | 10,160.21 | 10,692.27 | 11,419.76 | 10,890.08 | 9,725.89 | 10,579.10 | 10,387.64 | 10,382.61 | 10,864.03 | 10,946.04 | 11,102.46 | 10,939.54 | 11,320.57 | 11,064.06 | 11,123.32 | 10,521.79 | 10,703.48 | 10,501.77 | 11,182.24 | 11,924.30 | 11,557.50 | 10,995.95 | 10,106.84 | 7,421.53 | 7,383.62 | 7,145.23 | 6,633.33 | 6,698.53 | 6,615.01 | 6,517.91 | 6,430.57 | 6,384.90 | 5,719.98 | 5,213.49 | 5,062.44 |
| S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000.00 | $ 10,209.51 | $ 9,593.53 | $ 9,356.16 | $ 10,145.39 | $ 10,175.56 | $ 10,015.07 | $ 9,518.08 | $ 9,505.24 | $ 10,150.06 | $ 10,189.40 | $ 10,372.39 | $ 10,399.26 | $ 10,782.67 | $ 10,797.81 | $ 10,799.85 | $ 10,602.85 | $ 10,995.52 | $ 11,212.86 | $ 11,425.53 | $ 11,879.19 | $ 11,893.05 | $ 12,015.19 | $ 12,184.28 | $ 12,260.33 | $ 12,512.43 | $ 12,550.73 | $ 12,809.63 | $ 13,108.55 | $ 13,510.59 | $ 13,660.81 | $ 14,442.94 | $ 13,910.62 | $ 13,557.10 | $ 13,609.12 | $ 13,936.86 | $ 14,022.64 | $ 14,544.47 | $ 15,018.41 | $ 15,103.89 | $ 14,071.54 | $ 14,358.29 | $ 13,061.87 | $ 14,108.59 | $ 14,561.60 | $ 14,844.55 | $ 15,445.60 | $ 14,464.06 | $ 15,483.44 | $ 15,705.97 | $ 15,453.62 | $ 15,742.77 | $ 16,083.75 | $ 16,667.57 | $ 17,170.63 | $ 17,163.90 | $ 15,750.98 | $ 13,805.53 | $ 15,575.32 | $ 16,317.14 | $ 16,641.64 | $ 17,579.98 | $ 18,843.64 | $ 18,127.65 | $ 17,645.56 | $ 19,576.35 | $ 20,329.02 | $ 20,123.78 | $ 20,678.70 | $ 21,584.33 | $ 22,736.26 | $ 22,895.06 | $ 23,429.54 | $ 23,986.11 | $ 24,715.42 | $ 23,565.91 | $ 25,216.98 | $ 25,042.26 | $ 26,164.55 | $ 24,810.61 | $ 24,067.75 | $ 24,961.37 | $ 22,784.70 | $ 22,826.50 | $ 20,942.31 | $ 22,873.29 | $ 21,940.47 | $ 19,919.78 | $ 21,532.52 | $ 22,735.84 | $ 21,425.93 | $ 22,772.20 | $ 22,216.58 | $ 23,032.25 | $ 23,391.74 | $ 23,493.42 | $ 25,045.76 | $ 25,850.35 | $ 25,438.77 | $ 24,225.90 | $ 23,716.52 | $ 25,882.44 | $ 27,058.29 | $ 27,512.99 | $ 28,982.06 | $ 29,914.55 | $ 28,692.70 | $ 30,115.42 | $ 31,196.02 | $ 31,575.75 | $ 32,341.68 | $ 33,032.40 | $ 32,732.84 | $ 34,654.30 | $ 33,828.20 | $ 34,770.23 | $ 34,316.54 | $ 32,383.00 | $ 32,163.42 | $ 34,187.93 | $ 35,926.48 | $ 35,322.48 | $ 36,038.53 | $ 37,350.49 | $ 38,225.00 | $ 38,318.70 | $ 38,341.37 | $ 38,892.10 | $ 38,596.53 | $ 36,673.22 | $ 40,521.21 | $ 42,653.96 | $ 42,247.65 |