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Schedule of Other Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Mar. 31, 2017
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Other Assets, Noncurrent [Abstract] |  |
Recoverable insurance losses | $ 2,405 |
Deferred income tax assets | 3,003 |
Investments held for savings plans and SERP | 6,583 |
Long-term deposits | 16,217 |
Other | 5,847 |
Total other assets | $ 31,052 |
Predecessor |  |
Other Assets, Noncurrent [Abstract] |  |
Recoverable insurance losses |  | $ 10,142
Deferred income tax assets |  | 39,134
Investments held for savings plans and SERP |  | 14,835
Accumulated costs of rejected vessel |  | 48,382
Long-term deposits |  | 15,162
Other |  | 11,880
Total other assets |  | $ 139,535

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