Shareholder Report, Average Annual Return (Details) 197052_Direxion Monthly NASDAQ 100 Bull 1.75X Fund_Investor_TSR Annual {Investor} |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Aug. 31, 2026 |
Aug. 31, 2026 |
Aug. 31, 2026 |
|
| Investor | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Direxion Monthly NASDAQ-100® Bull 1.75X Fund | ||
| Average Annual Return, Percent | 39.44% | 15.26% | 32.75% |
| NASDAQ Composite Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | NASDAQ Composite Index | ||
| Average Annual Return, Percent | 23.64% | 12.38% | 18.61% |
| NASDAQ-100 Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | NASDAQ-100® Index | ||
| Average Annual Return, Percent | 26.61% | 14.46% | 21.03% |