Annual report pursuant to Section 13 and 15(d)

Goodwill (Details)

v2.4.1.9
Goodwill (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Goodwill [Roll Forward]    
Beginning of Period $ 527,502,000us-gaap_Goodwill $ 350,213,000us-gaap_Goodwill
Security Networks Acquisition   177,289,000us-gaap_GoodwillAcquiredDuringPeriod
Period activity 0us-gaap_GoodwillPeriodIncreaseDecrease  
Ending of Period 527,502,000us-gaap_Goodwill 527,502,000us-gaap_Goodwill
Goodwill, Impairment Loss $ 0us-gaap_GoodwillImpairmentLoss