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Goodwill, Intangible Assets and In-Process Revenue Contracts (Tables) | 12 Months Ended
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Dec. 31, 2012
Carrying Amount of Goodwill for Company's Reportable Segment | The carrying amount of goodwill for the years ended December 31, 2012 and 2011, for the Company’s reportable segments are as follows:
|  | Shuttle Tanker and FSO Segment $ |  |  | Liquefied Gas Segment $ |  |  | Conventional Tanker Segment $ |  |  | Total $ |
Balance as of December 31, 2010 |  |  | 130,908 |  |  |  | 35,631 |  |  |  | 36,652 |  |  |  | 203,191 |
Goodwill impairment |  |  | — |  |  |  | — |  |  |  | (36,652 | ) |  |  | (36,652 | )
Balance as of December 31, 2011 and 2012 |  |  | 130,908 |  |  |  | 35,631 |  |  |  | — |  |  |  | 166,539 |
Summary of Intangible Assets | As at December 31, 2012, the Company’s intangible assets consisted of:
|  | Weighted-Average Amortization Period (Years) |  |  | Gross Carrying Amount $ |  |  | Accumulated Amortization $ |  |  | Net Carrying Amount $ |
Customer contracts |  |  | 13.7 |  |  |  | 316,684 |  |  |  | (191,587 | ) |  |  | 125,097 |
Other intangible assets |  |  | 0.9 |  |  |  | 1,280 |  |  |  | (241 | ) |  |  | 1,039 |
|  |  | 13.6 |  |  |  | 317,964 |  |  |  | (191,828 | ) |  |  | 126,136 |
As at December 31, 2011 the Company’s intangible assets consisted of:
|  | Weighted-Average Amortization Period (Years) |  |  | Gross Carrying Amount $ |  |  | Accumulated Amortization $ |  |  | Net Carrying Amount $ |
Customer contracts |  |  | 15.6 |  |  |  | 329,815 |  |  |  | (194,266 | ) |  |  | 135,549 |
Other intangible assets |  |  | 4.5 |  |  |  | 11,430 |  |  |  | (10,237 | ) |  |  | 1,193 |
|  |  | 15.2 |  |  |  | 341,245 |  |  |  | (204,503 | ) |  |  | 136,742 |

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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 44 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 Reference 4: 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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