Fair Value of Financial Instruments - Losses From Commodity Derivatives (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Net adjustments to fair value of commodity derivatives	$ (1,047)	$ (5,383)	$ (116,556)
Derivative contract information
Net adjustments to fair value of commodity derivatives	(1,047)	(5,383)	(116,556)
Commodity contracts
Fair Value Disclosures [Abstract]
Net adjustments to fair value of commodity derivatives	(1,562)	(5,383)	(116,556)
Derivative contract information
Net adjustments to fair value of commodity derivatives	$ (1,562)	$ (5,383)	$ (116,556)