Senior Notes and Other Long-Term Debt - Aggregate Payments on Long-Term Debt Obligations (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Maturities of Long-term Debt [Abstract]
Fiscal year ending 2018	$ 288
Fiscal year ending 2019	38,017
Fiscal year ending 2020	38,017
Fiscal year ending 2021	613,017
Fiscal year ending 2022	38,017
Thereafter	152,066
Total Payment	879,422
Plus: unamortized premium (discount)	(30,651)
Total debt	$ 848,771	$ 945,802

Amount, after accumulated amortization, of debt discount (premium).

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Total amount of long-term debt maturing in the future including current and noncurrent portions, aggregate amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and before deducting unamortized discount or premiums and imputed interest on capital lease obligations, if any.

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