Long-Term Debt - Senior Unsecured Notes (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022	Feb. 02, 2024	Apr. 09, 2019	Feb. 22, 2017	Oct. 24, 2016
Long-Term Debt
Face amount	$ 2,900,000	$ 2,887,922
(Loss) gain on early extinguishment of liabilities, net	(55,281)	6,177	$ 1,813
7.5% Senior Notes due 2023
Long-Term Debt
Fixed interest rate							7.50%
7.5% Senior Notes due 2023 | Redemptions
Long-Term Debt
Notes redeemed	0	203,386
Cash paid (excluding payments of accrued interest)	0	203,386
(Loss) gain on early extinguishment of liabilities, net	0	367
Write off of debt issuance costs and other expenses		400
7.5% Senior Notes due 2023 | Repurchases
Long-Term Debt
Notes repurchased	0	272,316	79,549
Cash paid (excluding payments of accrued interest)	0	265,127	77,847
Gain on early extinguishment of debt (1)	0	6,555	1,318
Write off of debt issuance costs and other expenses		600	400
6.125% Senior Notes due 2025
Long-Term Debt
Face amount	$ 0	380,020				$ 500,000
Fixed interest rate	6.125%
6.125% Senior Notes due 2025 | Redemptions
Long-Term Debt
Notes redeemed	$ 280,745	0
Cash paid (excluding payments of accrued interest)	280,745	0
(Loss) gain on early extinguishment of liabilities, net	978	0
Write off of debt issuance costs and other expenses	1,000
6.125% Senior Notes due 2025 | Repurchases
Long-Term Debt
Notes repurchased	99,275	0	0
Cash paid (excluding payments of accrued interest)	91,982	0	0
Gain on early extinguishment of debt (1)	6,906	0	0
Write off of debt issuance costs and other expenses	400
7.5% Senior Notes due 2026
Long-Term Debt
Face amount	$ 0	319,902			$ 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	0
Cash paid (excluding payments of accrued interest)	319,902	0
(Loss) gain on early extinguishment of liabilities, net	2,159	0
Write off of debt issuance costs and other expenses	2,200
7.5% Senior Notes due 2026 | Repurchases
Long-Term Debt
Notes repurchased	0	12,500	6,000
Cash paid (excluding payments of accrued interest)	0	10,789	5,320
Gain on early extinguishment of debt (1)	$ 0	1,611	610
Write off of debt issuance costs and other expenses		$ 100	$ 100