Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 51,169	$ 58,719
Trade receivables, net of allowance for doubtful accounts of $3,986 and $3,926 (including related parties of $6,021 and $5,608)	41,189	44,270
Prepaid expenses and other current assets (including related parties of $274 and $274)	6,365	5,939
Total current assets	98,723	108,928
Property and equipment, net	63,089	65,226
Intangible assets subject to amortization, net (included related parties of $22,619 and $23,513)	23,676	24,598
Intangible assets not subject to amortization	220,701	220,701
Goodwill	36,647	36,647
Other assets	10,783	11,221
Total assets	453,619	467,321
LIABILITIES AND STOCKHOLDERS' EQUITY
Advances payable, related parties	118	118
Accounts payable and accrued expenses (including related parties of $3,714 and $5,691)	28,149	39,750
Total current liabilities	28,267	39,868
Long-term debt, less current maturities (net of bond discount of $3,989 and $4,134)	379,807	379,662
Other long-term liabilities	8,109	8,327
Deferred income taxes	41,131	40,025
Total liabilities	457,314	467,882
Commitments and contingencies (note 4)
Stockholders' equity (deficit)
Additional paid-in capital	938,714	938,453
Accumulated deficit	(942,417)	(939,022)
Total stockholders' equity (deficit)	(3,695)	(561)
Total liabilities and stockholders' equity (deficit)	453,619	467,321
Class A Common Stock [Member]
Stockholders' equity (deficit)
Common stock	5	5
Class B Common Stock [Member]
Stockholders' equity (deficit)
Common stock	2	2
Class U Common Stock [Member]
Stockholders' equity (deficit)
Common stock	$ 1	$ 1