Summary of Significant Accounting Policies Summary of Significant Accounting Policies Level 3 (Tables)

12 Months Ended

Dec. 31, 2014

Schedule of Revisions and Reclassifications - Statement of Operations [Abstract]

Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

The following is a summary of the consolidated statement of operations, the consolidated balance sheet, and the consolidated statement of cash flows line items impacted by the debt and income tax revisions:

	Year Ended December 31, 2013
	As previously reported			Revisions		Reclassifications		As revised
	(in thousands)
Provision for income taxes	$	(96,615	)	$	3,484	$	107	$	(93,024	)
Net income	$	149,104		$	3,484	$	—	$	152,588
Net income attributable to common stockholders	$	143,848		$	3,484	$	—	$	147,332
Net income attributable to common stockholders per share:
Basic	$	0.68		$	0.02	$	—	$	0.70
Diluted	$	0.67		$	0.01	$	—	$	0.68

	Year Ended December 31, 2012
	As previously reported			Revisions		Reclassifications		As revised
	(in thousands)
Provision for income taxes	$	(91,548	)	$	1,299	$	138	$	(90,111	)
Net income	$	154,135		$	1,299	$	—	$	155,434
Net income attributable to common stockholders	$	152,546		$	1,299	$	—	$	153,845
Net income attributable to common stockholders per share:
Basic	$	0.71		$	—	$	—	$	0.71
Diluted	$	0.70		$	—	$	—	$	0.70

Summary of Revised Consolidated Balance Sheet Amounts
	December 31, 2013
	As previously reported			Revisions			Reclassifications			As revised
	(in thousands)
Deferred tax assets	$	39,074		$	(3,750	)	$	(5,042	)	$	30,282
Total current assets	$	393,747		$	(3,750	)	$	(10,901	)	$	379,096
Goodwill	$	1,922,102		$	(91,016	)	$	(5,365	)	$	1,825,721
Total assets	$	12,906,070		$	(94,766	)	$	22,296		$	12,833,600
Current maturities of long-term debt	$	146,362		$	30,000		$	—		$	176,362
Income taxes	$	6,391		$	(1,202	)	$	74		$	5,263
Total current liabilities	$	642,584		$	28,798		$	2,200		$	673,582
Long-term debt	$	3,155,548		$	(30,000	)	$	—		$	3,125,548
Deferred tax liabilities	$	619,200		$	(190,355	)	$	(41,676	)	$	387,169
Other liabilities	$	430,393		$	40,941		$	19,904		$	491,238
Accumulated deficit	$	(145,876	)	$	55,850		$	—		$	(90,026	)
Total equity	$	1,424,378		$	55,850		$	—		$	1,480,228
Total liabilities and equity	$	12,906,070		$	(94,766	)	$	22,296		$	12,833,600

Summary of Revised Consolidated Statement of Cash Flows(1) Amounts
	Year Ended December 31, 2013
	As previously reported			Revisions			Reclassifications			As revised
	(In thousands, except per share amounts)
Net income	$	149,104		$	3,484		$	—		$	152,588
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for deferred income taxes	$	74,100		$	(2,282	)	$	(110	)	$	71,708
Change in assets and liabilities, net of effects from acquisitions and dispositions:
(Decrease) increase in payables and other liabilities	$	(284	)	$	(1,202	)	$	(509	)	$	(1,995	)

Summary of Revised Consolidated Statement of Cash Flows(1) Amounts
	Year Ended December 31, 2012
	As previously reported		Revisions			Reclassifications		As revised
	(In thousands, except per share amounts)
Net income	$	154,135	$	1,299		$	—	$	155,434
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for deferred income taxes	$	72,984	$	(1,299	)	$	—	$	71,685
Change in assets and liabilities, net of effects from acquisitions and dispositions:
(Decrease) increase in payables and other liabilities	$	25,240	$	—		$	1,120	$	26,360

(1) These revisions had no net impact on Net cash provided by operating, investing, or financing activities.