CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current Assets:
Cash and cash equivalents	$ 301,895	$ 403,463
Restricted cash and cash equivalents (Note 1)	157,911	197,861
Investments	173,469	209,463
Accounts receivable-trade, net (Note 1)	357,242	323,497
Accounts receivable-other	52,291	28,447
Contracts in progress	165,603	65,853
Deferred income taxes	20,170	10,323
Assets held for sale (Note 2)	13,875	10,161
Other current assets	42,889	36,570
Total Current Assets	1,285,345	1,285,638
Property, Plant and Equipment	1,863,865	1,720,040
Less accumulated depreciation	(842,930)	(804,471)
Net Property, Plant and Equipment	1,020,935	915,569
Assets Held for Sale (Note 2)	78,110	77,150
Investments	65,151	75,742
Goodwill	41,202	41,202
Investments in Unconsolidated Affiliates	46,524	45,016
Other Assets	170,030	158,371
Total Assets	2,707,297	2,598,688
Current Liabilities:
Notes payable and current maturities of long-term debt	7,357	8,547
Accounts payable	280,450	252,974
Accrued liabilities	287,983	286,831
Advance billings on contracts	92,422	250,053
Deferred income taxes	3,479	12,849
Income taxes payable	56,591	32,851
Liabilities associated with assets held for sale (Note 2)	22,912	20,902
Total Current Liabilities	751,194	865,007
Long-Term Debt	74,505	46,748
Self-Insurance	37,590	35,655
Pension Liability	44,495	52,831
Other Liabilities	102,445	86,180
Commitments and Contingencies (Note 9)
Stockholders' Equity:
Common stock, par value $1.00 per share, authorized 400,000,000 shares; issued 242,152,460 and 240,791,473 shares at June 30, 2011 and December 31, 2010, respectively	242,152	240,791
Capital in excess of par value	1,368,570	1,357,316
Retained earnings	238,121	100,373
Treasury stock, at cost, 7,185,432 and 6,906,262 shares at June 30, 2011 and December 31, 2010, respectively	(92,770)	(85,735)
Accumulated other comprehensive loss	(129,369)	(163,717)
Stockholders' Equity-McDermott International, Inc.	1,626,704	1,449,028
Noncontrolling Interests	70,364	63,239
Total Equity	1,697,068	1,512,267
Total Liabilities and Equity	$ 2,707,297	$ 2,598,688