Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Narrative (Details)

v3.3.1.900
Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Accounting Policies [Abstract]      
Trade Receivables, allowance for doubtful accounts (in dollars) $ 2,762 $ 2,120  
Finite-Lived Intangible Assets [Line Items]      
Amortization of subscriber accounts, dealer network and other intangible assets $ 258,668 253,403 $ 208,760
Subscriber Accounts      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, weighted average useful life 15 years    
Finite lived intangible asset amortization rate 220.00%    
Amortization of subscriber accounts, dealer network and other intangible assets $ 238,800 233,327 195,010
Dealer Networks and Other Intangible Assets      
Finite-Lived Intangible Assets [Line Items]      
Finite-lived intangible asset, useful life 5 years    
Amortization of subscriber accounts, dealer network and other intangible assets $ 19,501 $ 19,780 $ 13,717
Security Networks LLC and Certain Affiliated Entities | Subscriber Accounts      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, weighted average useful life 14 years    
Finite lived intangible asset amortization rate 235.00%    
Employee Stock Option      
Finite-Lived Intangible Assets [Line Items]      
Fair value assumptions, expected dividend rate 0.00%