Derivative Instruments and Hedging Transactions - Schedule of Outstanding Commitments and Open Forward and Futures Contracts (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Jun. 30, 2026 |
|---|---|---|
| Derivative [Line Items] | ||
| Purchase commitments | $ 1,343,744 | $ 1,463,181 |
| Sales commitments | (1,792,397) | (2,659,026) |
| Margin sales commitments | (31,068) | (30,480) |
| Open derivative contracts | 700,276 | 140,445 |
| Forward contracts | ||
| Derivative [Line Items] | ||
| Open derivative contracts | 73,034 | (407,606) |
| Futures contracts | ||
| Derivative [Line Items] | ||
| Open derivative contracts | $ 627,242 | $ 548,051 |