Long-Term Obligations (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Jul. 02, 2011
Dec. 31, 2010
Long-term obligations held by continuing operations        
Long-term obligations $ 1,119,369 $ 1,038,587 $ 912,367 $ 804,470
Less current portion (1,104,212) (142,019)    
Long-term portion 15,157 896,568    
15% Senior Secured Notes, due December 31, 2012 [Member]
       
Long-term obligations held by continuing operations        
Secured Debt 148,037 137,795    
15% Senior-Subordinated Secured Second Lien Notes due January 31, 2013 [Member]
       
Long-term obligations held by continuing operations        
Secured Debt 207,932 193,291    
16% Third Lien Subordinated Secured Convertible Notes due February 28, 2013, net of unamortized discounts of $3,342 and $5,834 at June 30, 2012 and December 31, 2011, respectively [Member]
       
Long-term obligations held by continuing operations        
Secured Debt 743,807 685,086    
Wireless spectrum leases [Member]
       
Long-term obligations held by continuing operations        
Wireless spectrum leases, net of unamortized discounts of $12,196 and $13,251 at June 30, 2012 and December 31, 2011, respectively; expiring from 2014 through 2036 with one to five renewal options ranging from 10 to 15 years each $ 19,593 $ 22,415