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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)
 12 Months Ended 4 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
IPTV operations
Dec. 31, 2012
IPTV operations
Dec. 31, 2011
IPTV operations
Dec. 31, 2010
IPTV operations
Aug. 31, 2012
IPTV operations
Dec. 31, 2012
IPTV operations
Deferred Revenue
Dec. 31, 2012
Minimum
Dec. 31, 2012
Maximum
Oct. 31, 2009
PAS infrastructure contracts
Dec. 31, 2012
PAS infrastructure contracts
Dec. 31, 2011
PAS infrastructure contracts
Revenue Recognition                            
Remaining expected period of support for PAS products                       2 years    
Deferred revenue released                         $ 8,100,000 $ 95,300,000
Profit realized on full year basis from deferred revenue released                           33,100,000
Deferred revenue 9,800,000 5,300,000   5,100,000 5,100,000               3,100,000  
Deferred revenue transferred to the buyer               74,100,000 2,000,000          
Standard price protection period                   30 days 90 days      
Deferred service costs related to unassigned contracts 6,100,000 4,100,000           22,700,000            
Impact on gross margin from the future revenue recognition of unassigned contracts         0                  
Revenues relating to unassigned contracts 186,728,000 320,576,000 291,535,000 2,200,000 29,500,000 141,400,000 152,600,000              
Current deferred revenue 41,461,000 64,989,000                        
Long-term deferred revenue $ 59,530,000 $ 83,227,000