Annual report pursuant to Section 13 and 15(d)

Goodwill - Schedule of Goodwill (Details)

v3.8.0.1
Goodwill - Schedule of Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Goodwill [Roll Forward]    
Goodwill, Beginning Balance $ 563,549 $ 563,549
Period activity 0 0
Goodwill, Ending Balance 563,549 563,549
MONI    
Goodwill [Roll Forward]    
Goodwill, Beginning Balance 527,502 527,502
Period activity 0 0
Goodwill, Ending Balance 527,502 527,502
LiveWatch    
Goodwill [Roll Forward]    
Goodwill, Beginning Balance 36,047 36,047
Period activity 0 0
Goodwill, Ending Balance $ 36,047 $ 36,047