Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 2011

Basis of Presentation [Abstract]

Summary of the effects of the correction of errors on the Condensed Consolidated Balance Sheet

	As of June 30, 2010
	As					As
in thousands	Reported		Correction			Restated
Balance Sheet
Assets
Current deferred income taxes		$59,525		($1,950	)		$57,575
Prepaid expenses		42,422		(8,450	)		33,972
Total current assets		867,303		(10,400	)		856,903
Goodwill		3,093,979		2,321			3,096,300
Total assets		$8,495,044		($8,079	)		$8,486,965
Liabilities
Noncurrent deferred income taxes		$836,702		$6,706			$843,408
Total liabilities		4,450,940		6,706			4,457,646
Equity
Retained earnings		1,625,620		(14,785	)		1,610,835
Total equity		4,044,104		(14,785	)		4,029,319
Total liabilities and equity		$8,495,044		($8,079	)		$8,486,965