Derivative Instruments - Pre-tax Gains (Losses) Associated with Cash Flow Hedges (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2023 |
Jul. 31, 2022 |
Jul. 31, 2023 |
Jul. 31, 2022 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gains (losses) recognized in OCI | $ (14,703) | $ 17,734 | $ (12,707) | $ 61,994 |
| Revenues | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gains (losses) reclassified from AOCI into income (effective portion) | 17,266 | 1,495 | 33,592 | 338 |
| Costs and expenses | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gains (losses) reclassified from AOCI into income (effective portion) | 1,640 | (5,955) | 942 | (6,784) |
| Other income (expense), net | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gains (losses) related to non-designated hedges | $ (1,002) | $ 2,135 | $ 1,432 | $ 6,101 |