Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Contingencies (Details)

v3.8.0.1
Commitments and Contingencies - Contingencies (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended
Feb. 23, 2017
claim
Mar. 03, 2016
patent
Aug. 14, 2014
airline
Mar. 31, 2017
USD ($)
$ / shares
shares
Aug. 31, 2016
USD ($)
$ / shares
shares
Apr. 30, 2016
USD ($)
Mar. 31, 2017
USD ($)
$ / shares
Mar. 31, 2016
USD ($)
Dec. 31, 2016
$ / shares
Loss Contingencies [Line Items]                  
Provision for legal settlements | $             $ 475 $ 2,001  
Settled litigation | UMG Recordings                  
Loss Contingencies [Line Items]                  
Paid to American in settlement of lawsuit | $       $ 5,000 $ 18,000        
Stock issued for legal settlements         1,800,000        
Pending Litigation | SwiftAir, LLC                  
Loss Contingencies [Line Items]                  
Number of plaintiffs | airline     1            
Damages sought     9.0            
Pending Litigation | AMN                  
Loss Contingencies [Line Items]                  
Loss Contingency, Patents Allegedly Infringed, Number | patent   2              
Pending Litigation | STM Sellers                  
Loss Contingencies [Line Items]                  
Loss contingency, damages sought by STM Sellers | $           $ 20,000      
Pending Litigation | Putative Securities Class Action Lawsuits                  
Loss Contingencies [Line Items]                  
New claims filed | claim 3                
Claims dismissed | claim 2                
Common Stock | UMG Recordings                  
Loss Contingencies [Line Items]                  
Stock issued during period, litigation (in shares)         1,800,000        
Price Per Share Scenario One | Common Stock | UMG Recordings                  
Loss Contingencies [Line Items]                  
Stock issued during period, litigation (in shares)       500,000 500,000        
Share Price (in usd per share) | $ / shares       $ 10.00 $ 10   $ 10.00   $ 10
Price Per Share Scenario Two | Common Stock | UMG Recordings                  
Loss Contingencies [Line Items]                  
Stock issued during period, litigation (in shares)       400,000 400,000        
Share Price (in usd per share) | $ / shares       $ 12.00 $ 12   $ 12.00   $ 12.00