Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Disaggregated Revenue by Source (Details)

v3.20.1
Revenue Recognition - Disaggregated Revenue by Source (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Disaggregation of Revenue [Line Items]    
Total Net revenue $ 122,575 $ 129,606
Alarm monitoring revenue    
Disaggregation of Revenue [Line Items]    
Total Net revenue 110,808 121,479
Product, installation and service revenue    
Disaggregation of Revenue [Line Items]    
Total Net revenue 10,496 6,534
Other revenue    
Disaggregation of Revenue [Line Items]    
Total Net revenue $ 1,271 $ 1,593