Supplemental Financial Information (Tables)

12 Months Ended

Dec. 31, 2011

Supplemental Financial Information [Abstract]

Accounts receivable, net of allowance for doubtful accounts

	December 31,
	2011			2010
	(In thousands)
Trade receivables	$	555,451		$	633,224
Value added tax receivables		11,615			5,003
Interest receivable		2,540			805
Related party receivables		508			538
Other		687			1,944
		570,801			641,514
Allowance for bad debts		(6,867	)		(31,908)
Total	$	563,934		$	609,606

Prepaid expenses and other current assets

	December 31,
	2011		2010
	(In thousands)
Rig spare parts and supplies	$	52,637	$	50,288
Deferred mobilization costs		74,659		76,868
Prepaid insurance		12,417		9,587
Deferred tax assets		6,800		9,557
Deposits		1,549		827
Prepaid taxes		37,612		20,347
FOREX contracts		1,262		4,326
Other		5,634		5,353
Total	$	192,570	$	177,153

Accrued liabilities

	December 31,
	2011		2010
	(In thousands)
Rig operating expenses	$	108,342	$	77,995
Payroll and benefits		77,055		79,866
Deferred revenue		67,894		69,825
Accrued capital expenditures		22,725		28,947
Interest payable		21,406		21,219
Construction milestone payments		14,600		154,427
Personal injury and other claims		10,536		11,758
Other		13,842		25,153
Total	$	336,400	$	469,190