Fair Value of Financial Instruments - Gains (Losses) from Derivatives (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Derivative contract information | ||||
| Net adjustments to fair value of derivatives | $ 16,762 | $ (6,167) | ||
| Commodity contracts | ||||
| Derivative contract information | ||||
| Net adjustments to fair value of derivatives | $ 6,300 | $ (10,800) | 16,900 | (8,200) |
| Interest rate swaps | ||||
| Derivative contract information | ||||
| Net adjustments to fair value of derivatives | $ 200 | $ 7,700 | $ (100) | $ 2,000 |