Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details)

v3.5.0.2
Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2016
USD ($)
$ / shares
shares
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
segment
$ / shares
shares
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Jul. 27, 2016
member
Accounting Policies [Line Items]            
Content library $ 20,592,000   $ 20,592,000   $ 16,083,000  
Board of directors members, voting | member           2
Board of directors members | member           2
Segments of the Company            
Number of reportable segments | segment     2      
Revenue Recognition            
Equipment sales 8,664,000 $ 3,702,000 $ 21,036,000 $ 14,156,000    
Costs of Sales            
Amortization of intangible assets 9,166,000 7,286,000 24,055,000 19,274,000    
Product Development            
Capitalized software development costs 1,800,000 900,000 6,000,000 2,600,000    
Restricted Cash            
Restricted cash 20,100,000   20,100,000   4,400,000  
Property, plant and equipment            
Asset impairment loss 900,000   900,000      
Intangible Assets and Goodwill:            
Goodwill, impairment loss     0   0  
Earn-Out Liability            
Income from change in fair value of earn-out liabilities 2,400,000   5,500,000      
Derivative Warrants            
Change in fair value of derivative financial instrument     17,982,000 13,866,000    
Public SPAC Warrants            
Derivative Warrants            
Change in fair value of derivative financial instrument 1,100,000 (1,900,000) $ 17,800,000 13,900,000    
Computer software            
Property, plant and equipment            
Property, plant and equipment, useful life     3 years      
Building and building improvements            
Property, plant and equipment            
Property, plant and equipment, useful life     30 years      
Connectivity equipment            
Property, plant and equipment            
Property, plant and equipment, useful life     5 years      
Other current assets            
Restricted Cash            
Restricted cash 18,600,000   $ 18,600,000   2,300,000  
Other non-current assets            
Restricted Cash            
Restricted cash 1,500,000   1,500,000   2,100,000  
Inventory and other long-term assets            
Inventory, net            
Deferred equipment costs 6,800,000   $ 6,800,000   7,800,000  
Minimum            
Restricted Cash            
Line of credit, period secured by cash     1 year      
Minimum | Equipment            
Property, plant and equipment            
Property, plant and equipment, useful life     3 years      
Maximum            
Restricted Cash            
Line of credit, period secured by cash     3 years      
Maximum | Equipment            
Property, plant and equipment            
Property, plant and equipment, useful life     10 years      
Content            
Revenue Recognition            
Equipment sales 0 0 $ 0 0    
Content | Cost of sales            
Costs of Sales            
Amortization of intangible assets 0 0 0 100,000    
Connectivity            
Revenue Recognition            
Equipment sales 8,664,000 3,702,000 $ 21,036,000 14,156,000    
Connectivity | Equipment            
Property, plant and equipment            
Property, plant and equipment, useful life     10 years      
STC Fees            
Revenue Recognition            
Equipment sales $ 400,000 $ 0 $ 1,100,000 $ 0    
Wireless Maritime Services            
Accounting Policies [Line Items]            
Equity method investment, ownership percentage           49.00%
Board of directors members, voting | member           5
Santander            
Accounting Policies [Line Items]            
Equity method investment, ownership percentage           49.00%
AT&T | Wireless Maritime Services            
Accounting Policies [Line Items]            
Equity method investment, ownership percentage           51.00%
Board of directors members, voting | member           3
Erzia | Santander            
Accounting Policies [Line Items]            
Equity method investment, ownership percentage           51.00%
Board of directors members | member           3
Scenario, adjustment            
Accounting Policies [Line Items]            
Content library         $ 12,300,000  
UMG Recordings | Common Stock            
Contingently Issuable Shares            
Stock issued during period, litigation (in shares) | shares 1,800,000          
Expected volatility rate     45.00%      
Expected dividend rate     0.00%      
UMG Recordings | Price Per Share Scenario One | Common Stock            
Contingently Issuable Shares            
Stock issued during period, litigation (in shares) | shares 500,000   500,000      
Share price of common stock (in usd per share) | $ / shares $ 10   $ 10      
Expected term until shares are issued     1 year 11 months 9 days      
Discount for lack of marketability     13.90%      
UMG Recordings | Price Per Share Scenario Two | Common Stock            
Contingently Issuable Shares            
Stock issued during period, litigation (in shares) | shares 400,000   400,000      
Share price of common stock (in usd per share) | $ / shares $ 12.00   $ 12.00      
Expected term until shares are issued     3 years 10 months 10 days      
Discount for lack of marketability     18.80%