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Goodwill, Intangible Assets and In-Process Revenue Contracts - Carrying Amount of Goodwill for Company's Reportable Segment (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Segment Reporting Information [Line Items] |  |
Goodwill, Beginning balance | $ 166,539 | $ 166,539
Goodwill, Ending balance | 166,539 | 166,539
Shuttle Tanker and FSO Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill, Beginning balance | 130,908 | 130,908
Goodwill, Ending balance | 130,908 | 130,908
Liquefied Gas Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill, Beginning balance | 35,631 | 35,631
Goodwill, Ending balance | $ 35,631 | $ 35,631

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration