Shareholder Report, Line Graph (Details) 542400_Direxion Monthly Small Cap Bull 1.75X Fund_Investor_TSR Annual {Investor} - USD ($) |
12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Aug. 31, 2025 |
Aug. 31, 2024 |
Aug. 31, 2023 |
Aug. 31, 2022 |
Aug. 31, 2021 |
Aug. 31, 2020 |
Aug. 31, 2019 |
Aug. 31, 2018 |
Aug. 31, 2017 |
Aug. 31, 2016 |
Aug. 31, 2026 |
|
| Investor | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Direxion Monthly Small Cap Bull 1.75X Fund | ||||||||||
| Accumulated Value | $ 20,435 | $ 19,342 | $ 15,830 | $ 15,914 | $ 25,329 | $ 12,486 | $ 12,919 | $ 19,009 | $ 12,688 | $ 10,000 | $ 28,847 |
| S&P 500 Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | S&P 500® Index | ||||||||||
| Accumulated Value | 34,718 | 29,960 | 23,566 | 20,325 | 22,895 | 17,455 | 14,315 | 13,909 | 11,623 | 10,000 | $ 41,793 |
| Russell 2000 Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Russell 2000 Index | ||||||||||
| Accumulated Value | $ 21,563 | $ 19,935 | $ 16,827 | $ 16,079 | $ 19,581 | $ 13,313 | $ 12,557 | $ 14,416 | $ 11,491 | $ 10,000 | $ 27,269 |