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Schedule of Other Liabilities and Deferred Credits (Detail) - USD ($) $ in Thousands | Sep. 30, 2017 | Mar. 31, 2017
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Deferred Credits and Other Liabilities [Abstract] |  |  |
Postretirement benefits liability |  | $ 4,290 |
Pension liabilities |  | 42,981 |
Other |  | 15,298 |
Other liabilities and deferred credits |  | $ 62,569 |
Predecessor |  |  |
Deferred Credits and Other Liabilities [Abstract] |  |  |
Postretirement benefits liability |  |  | $ 4,394
Pension liabilities |  |  | 40,339
Deferred gain on vessel sales | [1] |  | 88,923
Other |  |  | 21,049
Other liabilities and deferred credits |  |  | $ 154,705
[1] | Deferred gains related to the company’s sale leaseback vessels were recognized as reorganization items in the quarter ended June 30, 2017, due to the company’s rejection of its lease contracts as part of the Chapter 11 proceedings. Refer to Note (4) Reorganization Items.

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