| Summary of intangible assets | 
        
Our intangible assets include the following: 
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   | 
   | 
   | 
September 30, 2014  | 
   | 
December 31, 2013  | 
 
   | 
 Weighted Average 
Useful Lives 
 | 
   | 
 Gross 
Carrying 
Value 
 | 
   | 
 Accumulated 
Amortization 
 | 
   | 
 Net Carrying 
Value 
 | 
   | 
 Gross 
Carrying 
Value 
 | 
   | 
 Accumulated 
Amortization 
 | 
   | 
 Net Carrying 
Value 
 | 
 
Due to the Merger:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Indefinite life intangible assets:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
FCC licenses  | 
Indefinite  | 
   | 
$  | 
2,083,654  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
2,083,654  | 
 
  | 
   | 
$  | 
2,083,654  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
2,083,654  | 
 
  | 
 
Trademark  | 
Indefinite  | 
   | 
250,000  | 
 
  | 
   | 
—  | 
 
  | 
   | 
250,000  | 
 
  | 
   | 
250,000  | 
 
  | 
   | 
—  | 
 
  | 
   | 
250,000  | 
 
  | 
 
Definite life intangible assets:  | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Subscriber relationships  | 
9 years  | 
   | 
380,000  | 
 
  | 
   | 
(297,483  | 
)  | 
   | 
82,517  | 
 
  | 
   | 
380,000  | 
 
  | 
   | 
(271,372  | 
)  | 
   | 
108,628  | 
 
  | 
 
Licensing agreements  | 
9.1 years  | 
   | 
45,289  | 
 
  | 
   | 
(22,369  | 
)  | 
   | 
22,920  | 
 
  | 
   | 
45,289  | 
 
  | 
   | 
(19,604  | 
)  | 
   | 
25,685  | 
 
  | 
 
Proprietary software  | 
6 years  | 
   | 
16,552  | 
 
  | 
   | 
(13,825  | 
)  | 
   | 
2,727  | 
 
  | 
   | 
16,552  | 
 
  | 
   | 
(13,384  | 
)  | 
   | 
3,168  | 
 
  | 
 
Developed technology  | 
10 years  | 
   | 
2,000  | 
 
  | 
   | 
(1,233  | 
)  | 
   | 
767  | 
 
  | 
   | 
2,000  | 
 
  | 
   | 
(1,083  | 
)  | 
   | 
917  | 
 
  | 
 
Leasehold interests  | 
7.4 years  | 
   | 
132  | 
 
  | 
   | 
(110  | 
)  | 
   | 
22  | 
 
  | 
   | 
132  | 
 
  | 
   | 
(96  | 
)  | 
   | 
36  | 
 
  | 
 
Due to the acquisition of connected vehicle business of Agero:  | 
   | 
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Definite life intangible assets:  | 
   | 
   | 
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   | 
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   | 
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   | 
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   | 
 
OEM relationships  | 
15 years  | 
   | 
220,000  | 
 
  | 
   | 
(13,444  | 
)  | 
   | 
206,556  | 
 
  | 
   | 
220,000  | 
 
  | 
   | 
(2,444  | 
)  | 
   | 
217,556  | 
 
  | 
 
Proprietary software  | 
10 years  | 
   | 
10,663  | 
 
  | 
   | 
(1,350  | 
)  | 
   | 
9,313  | 
 
  | 
   | 
10,663  | 
 
  | 
   | 
(245  | 
)  | 
   | 
10,418  | 
 
  | 
 
Total intangible assets  | 
   | 
   | 
$  | 
3,008,290  | 
 
  | 
   | 
$  | 
(349,814  | 
)  | 
   | 
$  | 
2,658,476  | 
 
  | 
   | 
$  | 
3,008,290  | 
 
  | 
   | 
$  | 
(308,228  | 
)  | 
   | 
$  | 
2,700,062  | 
 
  | 
 
  
 
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        | Expected amortization expense for each of the fiscal years | 
        
Expected amortization expense for the remaining period in 2014, each of the fiscal years 2015 through 2018 and for periods thereafter is as follows: 
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Year ending December 31,  | 
    | 
Amount  | 
 
2014 (remaining)  | 
    | 
$  | 
13,430  | 
 
  | 
 
2015  | 
    | 
51,700  | 
 
  | 
 
2016  | 
    | 
48,545  | 
 
  | 
 
2017  | 
    | 
34,882  | 
 
  | 
 
2018  | 
    | 
19,463  | 
 
  | 
 
Thereafter  | 
    | 
156,802  | 
 
  | 
 
Total definite life intangible assets, net  | 
    | 
$  | 
324,822  | 
 
  | 
 
  
 
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