Quarterly report pursuant to Section 13 or 15(d)

Business Combinations - Allocation Of Purchase Consideration (Details)

v3.5.0.2
Business Combinations - Allocation Of Purchase Consideration (Details) - USD ($)
$ in Thousands
Jul. 27, 2016
Sep. 30, 2016
Dec. 31, 2015
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]      
Estimated goodwill   $ 364,543 $ 93,796
Wireless Maritime Services      
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]      
Equity method investment, ownership percentage 49.00%    
Santander      
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]      
Equity method investment, ownership percentage 49.00%    
Emerging Markets Communications LLC      
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]      
Cash and cash equivalents $ 9,032    
Restricted cash 17,802    
Other current assets 58,220    
Property, plant and equipment 94,321    
Equity method investments (a) 102,719    
Intangible assets (b) 134,900    
Other non-current assets 1,074    
Accounts payable and accrued liabilities (47,067)    
Deferred revenue (6,652)    
Debt, including current (370,845)    
Deferred tax liabilities, net (74,082)    
Deferred revenue, non-current (2,278)    
Other non-current liabilities (22,170)    
Estimated fair value of net assets acquired (105,026)    
Consideration transferred 166,493    
Estimated goodwill 271,519    
Finite-lived Intangible Assets Acquired $ 134,900    
Emerging Markets Communications LLC | Developed technology      
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]      
Finite lived intangible asset, weighted average useful life 6 years    
Finite-lived Intangible Assets Acquired $ 21,800    
Emerging Markets Communications LLC | Customer relationships      
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]      
Finite lived intangible asset, weighted average useful life 19 years    
Finite-lived Intangible Assets Acquired $ 19,100    
Emerging Markets Communications LLC | Vendor agreements      
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]      
Finite lived intangible asset, weighted average useful life 9 years    
Finite-lived Intangible Assets Acquired $ 91,800    
Emerging Markets Communications LLC | Trademarks      
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]      
Finite lived intangible asset, weighted average useful life 5 years    
Finite-lived Intangible Assets Acquired $ 2,200