Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 75,269	$ 72,390
Restricted cash		809
Trade receivables, net of allowance for doubtful accounts of $4,181 and $5,099 (including related parties of $5,436 and $5,315)	42,164	41,552
Prepaid expenses and other current assets (including related parties of $274 and $274)	6,594	6,867
Total current assets	124,027	121,618
Property and equipment, net	68,682	71,777
Intangible assets subject to amortization, net (including related parties of $24,360 and $25,880)	25,536	26,615
Intangible assets not subject to amortization	220,701	220,023
Goodwill	36,647	35,912
Other assets	12,525	14,865
Total assets	488,118	490,810
LIABILITIES AND STOCKHOLDERS' EQUITY
Current maturities of long-term debt (including related parties of $0 and $1,000)		1,000
Advances payable, related parties	118	118
Accounts payable and accrued expenses (including related parties of $4,339 and $4,683)	39,925	38,550
Total current liabilities	40,043	39,668
Long-term debt, less current maturities (net of bond discount of $4,602 and $4,881)	395,398	395,119
Other long-term liabilities	9,208	10,294
Deferred income taxes	36,989	35,372
Total liabilities	481,638	480,453
Commitments and contingencies (note 4)
Stockholders' equity
Additional paid-in capital	942,078	941,171
Accumulated deficit	(935,606)	(930,822)
Total stockholders' equity	6,480	10,357
Total liabilities and stockholders' equity	488,118	490,810
Class A Common Stock [Member]
Stockholders' equity
Common stock	5	5
Class B Common Stock [Member]
Stockholders' equity
Common stock	2	2
Class U Common Stock [Member]
Stockholders' equity
Common stock	$ 1	$ 1