Annual report pursuant to Section 13 and 15(d)

Acquisitions - Narrative (Details)

v3.7.0.1
Acquisitions - Narrative (Details) - USD ($)
$ in Thousands
Feb. 23, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Business Acquisition [Line Items]        
Goodwill   $ 563,549 $ 563,549 $ 527,502
LiveWatch        
Business Acquisition [Line Items]        
Fair value of consideration $ 61,550      
Cash paid for acquisition 3,988      
Goodwill 36,047      
LiveWatch | Business Combination, Management Retention        
Business Acquisition [Line Items]        
Contingent consideration arrangement 5,400      
LiveWatch | Business Combination, Performance Bonus        
Business Acquisition [Line Items]        
Contingent consideration arrangement $ 6,200