Debt and Foreign Currency Transactions and Translations - Summarizes Average and Maximum Debt Outstanding and Interest and Debt Issuance Cost (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Debt Instrument [Line Items]
Average debt outstanding	$ 1,546,037	$ 1,453,682	$ 1,545,227
Average debt outstanding (in millions)	1,546,000	1,453,700	1,545,200	$ 1,632,300	$ 1,529,500
Maximum amount of debt outstanding	$ 1,669,385	$ 1,826,411	$ 1,633,723
Weighted average annualized interest cost	4.68%	6.70%	3.18%
Annualized amortized debt issuance cost	0.37%	0.40%	0.38%
Total annualized interest cost	5.05%	7.10%	3.56%