v3.26.1
REVENUE AND RECEIVABLES - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Total revenue $ 1,312,285 $ 1,287,035 $ 2,590,814 $ 2,554,526
Monitoring and related services        
Disaggregation of Revenue [Line Items]        
Total revenue 1,082,111 1,090,241 2,162,587 2,173,345
Recurring monthly revenue        
Disaggregation of Revenue [Line Items]        
Total revenue 1,045,164 1,056,527 2,090,885 2,109,326
Other related services        
Disaggregation of Revenue [Line Items]        
Total revenue 36,947 33,714 71,702 64,019
Security installation, product, and other        
Disaggregation of Revenue [Line Items]        
Total revenue 230,174 196,794 428,227 381,181
Installation and other revenue        
Disaggregation of Revenue [Line Items]        
Total revenue 140,637 107,176 249,095 202,692
Amortization of deferred subscriber acquisition revenue        
Disaggregation of Revenue [Line Items]        
Total revenue $ 89,537 $ 89,618 $ 179,132 $ 178,489