CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 788,965	$ 570,854
Restricted cash and cash equivalents	24,832	21,962
Investments	54,708	109,522
Accounts receivable-trade, net	388,373	445,808
Accounts receivable-other	61,140	53,386
Contracts in progress	259,664	287,390
Deferred income taxes	15,097	11,931
Assets held for sale		3,197
Other current assets	40,680	33,135
Total Current Assets	1,633,459	1,537,185
Property, Plant and Equipment	2,019,289	1,958,877
Less accumulated depreciation	(878,048)	(857,012)
Net Property, Plant and Equipment	1,141,241	1,101,865
Assets Held for Sale		55,571
Investments	30,991	29,484
Goodwill	41,202	41,202
Investments in Unconsolidated Affiliates	39,912	42,659
Other Assets	178,589	184,848
Total Assets	3,065,394	2,992,814
Current Liabilities:
Notes payable and current maturities of long-term debt	10,061	8,941
Accounts payable	272,746	315,514
Accrued liabilities	307,797	309,515
Advance billings on contracts	358,052	320,438
Deferred income taxes	12,396	13,187
Income taxes payable	67,316	54,181
Total Current Liabilities	1,028,368	1,021,776
Long-Term Debt	82,180	84,794
Self-Insurance	24,969	23,585
Pension Liability	20,134	21,295
Other Liabilities	122,416	107,652
Commitments and Contingencies
Stockholders' Equity:
Common stock, par value $1.00 per share, authorized 400,000,000 shares; issued 243,085,098 and 242,416,424 shares at March 31, 2012 and December 31, 2011, respectively	243,085	242,416
Capital in excess of par value	1,379,153	1,375,976
Retained earnings	301,861	239,103
Treasury stock, at cost, 7,811,017 and 7,359,983 shares at March 31, 2012 and December 31, 2011, respectively	(98,011)	(95,827)
Accumulated other comprehensive loss	(99,921)	(102,030)
Stockholders' Equity-McDermott International, Inc.	1,726,167	1,659,638
Noncontrolling Interests	61,160	74,074
Total Equity	1,787,327	1,733,712
Total Liabilities and Equity	$ 3,065,394	$ 2,992,814