Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.3.0.814
Commitments and Contingencies - Additional Information (Details)
 1 Months Ended 9 Months Ended
Sep. 30, 2015
USD ($)
claim
Jul. 31, 2015
USD ($)
Jun. 30, 2015
USD ($)
Aug. 31, 2013
USD ($)
claim
Sep. 30, 2015
USD ($)
claim
Sep. 30, 2013
claim
Loss Contingencies [Line Items]            
Agreement term to repurchase certain products shipped to distributor from date of shipment (after 90 days)         90 days  
Telephone Consumer Protection Act Suits [Member] | Pending Litigation [Member]            
Loss Contingencies [Line Items]            
Statutory damages sought per violation         $ 500  
Sound Exchange, Inc | Pending Litigation [Member]            
Loss Contingencies [Line Items]            
Compensatory damages sought       $ 100,000,000    
Pre-1972 Recording Matters [Member]            
Loss Contingencies [Line Items]            
Settlement of lawsuit     $ 210,000,000      
Payment of settlement of lawsuit   $ 210,000,000        
Ownership percentage acquired by plaintiff         85.00%  
Pre-1972 Recording Matters [Member] | Prepaid Expenses and Other Current Assets [Member]            
Loss Contingencies [Line Items]            
Litigation settlement asset $ 39,765,000       $ 39,765,000  
Pre-1972 Recording Matters [Member] | Other Long-Term Assets [Member]            
Loss Contingencies [Line Items]            
Litigation settlement asset $ 53,596,000       $ 53,596,000  
Pre-1972 Recording Matters [Member] | Pending Litigation [Member]            
Loss Contingencies [Line Items]            
Number of pending claims | claim 4     3 4 3
Number of pending claims alleging violations of plaintiffs' rights of publicity | claim 2       2  
Maximum [Member]            
Loss Contingencies [Line Items]            
Operating lease obligations, term         15 years  
Maximum [Member] | Telephone Consumer Protection Act Suits [Member] | Pending Litigation [Member]            
Loss Contingencies [Line Items]            
Treble damages sought per willful violation         $ 1,500  
Minimum [Member]            
Loss Contingencies [Line Items]            
Operating lease obligations, term         1 year  
Minimum [Member] | Sound Exchange, Inc | Pending Litigation [Member]            
Loss Contingencies [Line Items]            
Compensatory damages sought       $ 50,000,000    
Minimum [Member] | Pre-1972 Recording Matters [Member] | Pending Litigation [Member]            
Loss Contingencies [Line Items]            
Compensatory damages sought $ 100,000,000          
XM-5, FM-5, FM-6, XM-3, and XM-4 [Member]            
Loss Contingencies [Line Items]            
Operating performance over design life         15 years  
XM-4 [Member]            
Loss Contingencies [Line Items]            
Period beyond expected operating performance of design life for XM-4         5 years  
XM-4 [Member] | Maximum [Member]            
Loss Contingencies [Line Items]            
Additional payments required if XM-4 continues to operate above baseline specifications $ 10,000,000       $ 10,000,000