Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 142,570	$ 129,987
Other comprehensive income (loss):
Unrealized derivative gains on cash flow hedges	1,615	2,307
Amortization of terminated hedge	(84)	(84)
Other comprehensive income before tax	1,531	2,223
Income tax expense related to items of other comprehensive income	582	860
Total other comprehensive income, net of tax	949	1,363
Comprehensive income	143,519	131,350
Less: Comprehensive income attributable to noncontrolling interests	13,963	15,794
Comprehensive income attributable to UHS	$ 129,556	$ 115,556

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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