DERIVATIVE INSTRUMENTS - Unrealized gain loss (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Unrealized gain (loss) on derivative instruments | $ (289,774) | $ 233,036 | $ (67,335) | $ 469,091 |
| Physical forward contracts and options | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Unrealized gain (loss) on derivative instruments | (325,580) | 106,036 | (141,030) | 288,567 |
| Financial swap contracts and options | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Unrealized gain (loss) on derivative instruments | 31,395 | 122,891 | 67,632 | 177,969 |
| Foreign exchange forward contracts | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Unrealized gain (loss) on derivative instruments | $ 4,411 | 473 | $ 6,063 | 1,368 |
| Other derivative options | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Unrealized gain (loss) on derivative instruments | $ 3,636 | $ 1,187 | ||