Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Disaggregation of Revenue (Details)

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Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Disaggregation of Revenue [Line Items]        
Total Revenues $ 157,467 $ 165,962 $ 324,086 $ 322,459
Licensing and services        
Disaggregation of Revenue [Line Items]        
Total Revenues 145,129 156,428 295,607 302,954
Media & Content | Licensing and services        
Disaggregation of Revenue [Line Items]        
Total Revenues 74,013 83,455 154,023 158,369
Connectivity | Aviation Services        
Disaggregation of Revenue [Line Items]        
Total Revenues 30,621 29,423 61,862 58,749
Connectivity | Aviation Equipment        
Disaggregation of Revenue [Line Items]        
Total Revenues 8,719 6,712 22,779 14,310
Connectivity | Maritime & Land Services        
Disaggregation of Revenue [Line Items]        
Total Revenues 40,495 43,550 79,722 85,836
Connectivity | Maritime & Land Equipment        
Disaggregation of Revenue [Line Items]        
Total Revenues $ 3,619 $ 2,822 $ 5,700 $ 5,195