CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Cash and cash equivalents	$ 125,559	$ 95,821
Receivables, net	27,589	27,446
Intangible assets	204,050	214,092
Other assets, net	47,508	50,233
Current portion of long-term debt	17,467	16,380
Accrued expenses and other current liabilities	102,945	92,162
Long-term debt, less current portion	2,051,069	2,178,847
Consolidated Variable Interest Entity
Cash and cash equivalents	53	12
Receivables, net	2,481	2,863
Intangible assets	54,853	62,503
Other assets, net	0	282
Current portion of long-term debt	0	38
Accrued expenses and other current liabilities	664	402
Long-term debt, less current portion	$ 0	$ 244
Voting units
Members' / stockholders' equity units issued (in units)	100	100
Members' / stockholders' equity units outstanding (in units)	100	100
Non-voting units
Members' / stockholders' equity units issued (in units)	100	100
Members' / stockholders' equity units outstanding (in units)	100	100