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Schedule of Other Assets (Detail) - USD ($) $ in Thousands		Mar. 31, 2017	Mar. 31, 2016
Other Assets, Noncurrent [Abstract]
Recoverable insurance losses		$ 10,142	$ 9,412
Deferred income tax assets		39,134	33,505
Savings plans and supplemental plan		14,835	14,472
Accumulated costs of rejected vessel	[1]	48,382
Restricted cash and long-term deposits		15,162
Other		11,880	14,297
Total other assets		$ 139,535	$ 71,686
[1] Refer to Note (12) of Notes to Consolidated Financial Statements included in Item 8 of this Annual Report on Form 10-K for additional information regarding the vessel rejected at the time of delivery.

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Savings plans and supplemental plan assets.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.

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Carrying amount as of the balance sheet date of amounts expected to be recovered under the terms of insurance contracts.

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The noncurrent cash, cash equivalents and investments that is restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits classified as long-term; that is not expected to be released from such existing restrictions within one year of the balance sheet date or operating cycle, whichever is longer. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes noncurrent cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal.

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