Annual report pursuant to Section 13 and 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Summary of Assets and Liabilities at Fair Value (Details)

v3.19.1
Basis of Presentation and Summary of Significant Accounting Policies - Summary of Assets and Liabilities at Fair Value (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended
Mar. 31, 2017
Aug. 31, 2016
Dec. 31, 2018
Aug. 31, 2018
Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Earn-out liability     $ 114   $ 114
Contingently issuable shares     1,371   1,448
Phantom stock options     1,564    
Total financial liabilities     3,049   1,582
Cash-settled phantom stock options     $ 6,700    
Common Stock | UMG Recordings | Price Per Share Scenario One          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Shares issued in period (in shares) 500,000 500,000      
Share price (in usd per share) $ 10.00   $ 10.00 $ 10.00  
Common Stock | UMG Recordings | Price Per Share Scenario Two          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Shares issued in period (in shares) 400,000 400,000      
Share price (in usd per share) $ 12.00   $ 12.00 $ 12.00  
Global Eagle Warrants          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liability warrants         20
Quotes Prices in Active Markets (Level 1)          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Earn-out liability     $ 0   0
Contingently issuable shares     0   0
Phantom stock options     0    
Total financial liabilities     0   0
Quotes Prices in Active Markets (Level 1) | Global Eagle Warrants          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liability warrants         $ 0
Quotes Prices in Active Markets (Level 1) | Global Eagle Warrants | Public Warrants          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Warrants (in shares)         6,173,228
Significant Other Observable Inputs (Level 2)          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Earn-out liability     0   $ 0
Contingently issuable shares     0   0
Phantom stock options     0    
Total financial liabilities     0   0
Significant Other Observable Inputs (Level 2) | Global Eagle Warrants          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liability warrants         0
Significant Other Unobservable Inputs (Level 3)          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Earn-out liability     114   114
Contingently issuable shares     1,371   1,448
Phantom stock options     1,564    
Total financial liabilities     $ 3,049   1,582
Significant Other Unobservable Inputs (Level 3) | Global Eagle Warrants          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Liability warrants         $ 20