Quarterly report pursuant to Section 13 or 15(d)

Revenue - Disaggregation of Revenue (Details)

v3.8.0.1
Revenue - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Disaggregation of Revenue [Line Items]    
Revenue $ 156,497 $ 152,592
Media & Content    
Disaggregation of Revenue [Line Items]    
Revenue 74,915 76,380
Media & Content | Licensing & Services    
Disaggregation of Revenue [Line Items]    
Revenue 74,915 76,380
Connectivity    
Disaggregation of Revenue [Line Items]    
Revenue 81,582 76,212
Connectivity | Aviation Services    
Disaggregation of Revenue [Line Items]    
Revenue 29,325 28,195
Connectivity | Aviation Equipment    
Disaggregation of Revenue [Line Items]    
Revenue 7,598 6,563
Connectivity | Maritime & Land Services    
Disaggregation of Revenue [Line Items]    
Revenue 42,286 39,068
Connectivity | Maritime & Land Equipment    
Disaggregation of Revenue [Line Items]    
Revenue $ 2,373 $ 2,386