Equity Investments (Tables)

12 Months Ended

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).