Debt (Tables)

12 Months Ended

Dec. 31, 2012

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

	December 31, 2012			December 31, 2011
Senior Secured Credit Facility:
Term loan A facility	$	880,000		$	1,030,000
Term loan B facility	—			592,025
Senior Notes:
7.75% Notes due July 2021	700,000			700,000
4.75% Notes due December 2022	600,000			—
Total long-term debt	2,180,000			2,322,025
Unamortized discount	(26,685		)	(30,745		)
Long-term debt, net	2,153,315			2,291,280
Current portion of long-term debt	—			5,950
Noncurrent portion of long-term debt	$	2,153,315		$	2,285,330

Schedule of Maturities of Long-term Debt [Table Text Block]

Years Ending December 31,
2013	$	—
2014	4,250
2015	197,750
2016	226,000
2017	452,000
Thereafter	1,300,000