Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Disaggregated Revenue by Source (Details)

v3.19.2
Revenue Recognition - Disaggregated Revenue by Source (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Disaggregation of Revenue [Line Items]        
Total Net revenue $ 128,091 $ 135,013 $ 257,697 $ 268,766
Alarm monitoring revenue        
Disaggregation of Revenue [Line Items]        
Total Net revenue 119,085 124,844 240,564 249,685
Product and installation revenue        
Disaggregation of Revenue [Line Items]        
Total Net revenue 7,585 9,477 14,118 17,624
Other revenue        
Disaggregation of Revenue [Line Items]        
Total Net revenue $ 1,421 $ 692 $ 3,015 $ 1,457