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Equity Investments (Tables) | 12 Months Ended
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Dec. 31, 2011
Equity Investments [Abstract] |
Contributions To Equity Investments |
|  |  | Year Ended December 31, |
|  |  | 2011 |  |  |  | 2010 |  |  |  | 2009 |
Clough Helix Pty Ltd. (see below) |  | $ | 2,699 |  |  | $ | 8,253 |  |  | $ | — |
Other |  |  | — |  |  |  | — |  |  |  | 1,657 |
Total |  | $ | 2,699 |  |  | $ | 8,253 |  |  | $ | 1,657 |
Distributions From Equity Investments |
|  |  | Year Ended December 31, |
|  |  | 2011 |  |  |  | 2010 |  |  |  | 2009 |
Deepwater Gateway |  | $ | 7,600 |  |  | $ | 8,125 |  |  | $ | 6,750 |
Independence Hub |  |  | 18,580 |  |  |  | 21,615 |  |  |  | 26,000 |
Other |  |  | — |  |  |  | 268 |  |  |  | — |
Total |  | $ | 26,180 |  |  | $ | 30,008 |  |  | $ | 32,750 |
Schedule Of Summarized Aggregated Financial Information Related To The Subsidiaries |
|  |  | Year Ended December 31, |
|  |  | 2011 |  |  |  | 2010 |  |  |  | 2009 |
Revenues |  | $ | 193,521 |  |  | $ | 141,705 |  |  | $ | 141,664 |
Operating income |  |  | 97,954 |  |  |  | 93,324 |  |  |  | 118,566 |
Net income |  |  | 93,215 |  |  |  | 93,005 |  |  |  | 118,602 |
|  |  | At December 31, |
|  |  | 2011 |  |  |  | 2010 |  |  |  | 2009 |
Current assets |  | $ | 39,754 |  |  | $ | 25,352 |  |  | $ | 18,620 |
Total assets |  |  | 591,761 |  |  |  | 594,645 |  |  |  | 602,413 |
Current liabilities |  |  | 11,012 |  |  |  | 6,434 |  |  |  | 415 |
Total liabilities |  |  | 27,163 |  |  |  | 19,695 |  |  |  | 734 |
(1) | Results do not include any amounts associated with Cal Dive. We accounted for our investment in Cal Dive under the equity method from June 10, 2009 to September 23, 2009 (Note 3).

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- Definition Tabular disclosure of equity method investments in common stock. The disclosure may include: (a) the name of each investee or group of investments for which combined disclosure is appropriate, (2) the percentage ownership of common stock, (3) the difference, if any, between the carrying amount of an investment and the value of the underlying equity in the net assets and the accounting treatment of difference, if any, and (4) the aggregate value of each identified investment based on its quoted market price, if available. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a, b -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 Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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