CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Net income	$ 53,929		$ 71,436		$ 119,353		$ 145,863
Other comprehensive income (loss), net of tax:
Amortization of benefit plan costs	2,681		5,093		5,726		10,056
Unrealized gain on benefit plan revaluation			9,883				9,883
Unrealized gain (loss) on investments	431		(63)		1,128		636
Realized loss on investments			12				20
Translation adjustments	3,326		1,268		6,439		4,031
Unrealized gain (loss) on derivatives	(18,216)		3,311		(24,103)		11,378
Realized loss on derivatives	1,107		77		2,401		(146)
Other comprehensive income (loss), net of tax	(10,671)	[1]	19,581	[1]	(8,409)	[1]	35,858	[1]
Total Comprehensive Income	43,258		91,017		110,944		181,721
Less: Comprehensive Income Attributable to Noncontrolling Interests	1,138		4,499		3,957		9,625
Comprehensive Income Attributable to McDermott International, Inc.	$ 42,120		$ 86,518		$ 106,987		$ 172,096

[1] The tax impact on amounts presented in other comprehensive income is not significant.