Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 40,757	$ 58,719
Trade receivables, net of allowance for doubtful accounts of $4,286 and $3,926 (including related parties of $8,914 and $5,608)	48,306	44,270
Prepaid expenses and other current assets (including related parties of $274 and $274)	5,697	5,939
Total current assets	94,760	108,928
Property and equipment, net	61,923	65,226
Intangible assets subject to amortization, net (including related parties of $22,039 and $23,513)	23,067	24,598
Intangible assets not subject to amortization	220,701	220,701
Goodwill	36,647	36,647
Other assets	9,845	11,221
Total assets	446,943	467,321
Current liabilities
Advances payable, related parties	118	118
Accounts payable and accrued expenses (including related parties of $3,891 and $5,691)	37,466	39,750
Total current liabilities	37,584	39,868
Long-term debt, less current maturities (net of bond discount of $3,641 and $4,134)	360,155	379,662
Other long-term liabilities	7,666	8,327
Deferred income taxes	42,430	40,025
Total liabilities	447,835	467,882
Commitments and contingencies (note 4)
Stockholders' equity (deficit)
Additional paid-in capital	939,451	938,453
Accumulated deficit	(940,351)	(939,022)
Total stockholders' equity (deficit)	(892)	(561)
Total liabilities and stockholders' equity (deficit)	446,943	467,321
Class A common Stock
Stockholders' equity (deficit)
Common stock	5	5
Class B Common Stock
Stockholders' equity (deficit)
Common stock	2	2
Class U common stock
Stockholders' equity (deficit)
Common stock	$ 1	$ 1