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
Mar. 31, 2019
Mar. 31, 2018
Disaggregation of Revenue [Line Items]    
Total Revenues $ 166,619 $ 156,497
Licensing and services    
Disaggregation of Revenue [Line Items]    
Total Revenues 150,478 146,526
Media & Content | Licensing and services    
Disaggregation of Revenue [Line Items]    
Total Revenues 80,010 74,915
Connectivity | Aviation Services    
Disaggregation of Revenue [Line Items]    
Total Revenues 31,241 29,325
Connectivity | Aviation Equipment    
Disaggregation of Revenue [Line Items]    
Total Revenues 14,060 7,598
Connectivity | Maritime & Land Services    
Disaggregation of Revenue [Line Items]    
Total Revenues 39,227 42,286
Connectivity | Maritime & Land Equipment    
Disaggregation of Revenue [Line Items]    
Total Revenues $ 2,081 $ 2,373