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Asset Impairments - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014
Derivatives, Fair Value [Line Items] |  |  |  |  |
Increase in asset impairment charges |  | $ 8,900 |  | $ 53,700 |
Asset impairment charges | [1] | 15,141 | $ 6,236 | 61,771 | $ 8,096
Stacked Vessels and Other Assets |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Asset impairment charges |  | $ 15,200 |  | 55,500 |
Active Vessels |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Asset impairment charges |  |  |  | 3,000 |
Vessels Under Construction |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Asset impairment charges |  |  |  | 2,400 |
Cancellation of Vessel Construction Contracts |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Asset impairment charges |  |  |  | $ 800 |
[1] | Refer to Note (15) for additional information regarding asset impairment charges.

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51824106&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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