Senior Notes and Other Long-Term Debt - Components of Long-Term Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Debt Instrument [Line Items]
Finance lease obligations (see Note 5)	$ 45,752	$ 56,336
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Long Term Debt Other Than Long Term Commercial Paper Noncurrent	Long Term Debt Other Than Long Term Commercial Paper Noncurrent
Total debt	$ 2,524,361	$ 1,854,597
Unamortized discount and debt issuance costs	(38,234)	(21,441)
Less: current portion of long-term debt	34,911	30,472
Total long-term debt	2,451,216	1,802,684
2028 Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt	400,000	400,000
2027 Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt	600,000	600,000
2025 Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt	700,000	700,000
Term Loan Facility [Member]
Debt Instrument [Line Items]
Principal amount of debt	700,000
Ex-Im Credit Facility [Member]
Debt Instrument [Line Items]
Principal amount of debt	$ 78,609	$ 98,261

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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