Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Current assets    
Cash and cash equivalents $ 43,822 $ 36,130
Trade receivables, net of allowance for doubtful accounts of $3,199 and $4,396 (including related parties of $7,102 and $4,916) 57,043 48,030
Deferred income taxes 6,100 425
Prepaid expenses and other current assets (including related parties of $274 and $274) 4,087 3,820
Total current assets 111,052 88,405
Property and equipment, net 58,765 61,435
Intangible assets subject to amortization, net (including related parties of $18,559 and $20,880) 19,812 22,349
Intangible assets not subject to amortization 220,701 220,701
Goodwill 36,647 36,647
Deferred income taxes 83,856  
Other assets 7,404 8,514
Total assets 538,237 438,051
Current liabilities    
Current maturities of long-term debt 3,750 150
Advances payable, related parties 118 118
Accounts payable and accrued expenses (including related parties of $3,994 and $3,576) 31,246 39,158
Total current liabilities 35,114 39,426
Long-term debt, less current maturities (net of bond discount of $0 and $2,982) 360,313 340,664
Other long-term liabilities 6,786 7,359
Deferred income taxes   45,201
Total liabilities 402,213 432,650
Commitments and contingencies (note 11)      
Stockholders' equity    
Additional paid-in capital 927,377 930,814
Accumulated deficit (791,596) (925,421)
Accumulated other comprehensive income 234   
Total stockholders' equity 136,024 5,401
Total liabilities and stockholders' equity 538,237 438,051
Class A common stock [Member]
    
Stockholders' equity    
Common stock 6 5
Total stockholders' equity 6 5
Class B common stock [Member]
    
Stockholders' equity    
Common stock 2 2
Total stockholders' equity 2 2
Class U common stock [Member]
    
Stockholders' equity    
Common stock 1 1
Total stockholders' equity $ 1 $ 1