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Long-Term Debt - Senior Unsecured Notes (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2024	Mar. 31, 2025	Feb. 02, 2024	Apr. 09, 2019	Feb. 22, 2017
Long-Term Debt
Face amount	$ 3,275,847		$ 3,013,652
Loss on early extinguishment of liabilities, net	$ (16,749)	$ (55,281)
6.125% Senior Notes due 2025
Long-Term Debt
Face amount						$ 500,000
Fixed interest rate						6.125%
6.125% Senior Notes due 2025 \| Repurchases
Long-Term Debt
Notes repurchased		99,275
Cash paid (excluding payments of accrued interest)		91,982
Gain on early extinguishment of debt (1)		6,906
Write off of debt issuance costs and other expenses		400
6.125% Senior Notes due 2025 \| Redemptions
Long-Term Debt
Notes redeemed		280,745
Cash paid (excluding payments of accrued interest)		280,745
Loss on early extinguishment of liabilities, net		978
Write off of debt issuance costs and other expenses		1,000
7.5% Senior Notes due 2026
Long-Term Debt
Face amount					$ 450,000
Fixed interest rate					7.50%
7.5% Senior Notes due 2026 \| Redemptions
Long-Term Debt
Debt redemption deposit				$ 331,900
Accrued and unpaid interest				$ 12,000
Notes redeemed		319,902
Cash paid (excluding payments of accrued interest)		319,902
Loss on early extinguishment of liabilities, net		2,159
Write off of debt issuance costs and other expenses		$ 2,200