v3.26.1
Contract Revenues (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Service Contracts And Sales          
Disaggregation of Revenue [Line Items]          
Receivables from contracts with customers $ 192.4   $ 192.4   $ 187.6
Unearned revenue from contracts with customers 155.5   155.5   149.1
Contract with customer, liability, unearned revenue 18.9 $ 17.5 37.8 $ 34.9  
Deferred upfront commissions and other costs 65.1   65.1   $ 67.6
Global Lifestyle          
Disaggregation of Revenue [Line Items]          
Disaggregated fee revenues 490.3 402.1 931.9 751.8  
Global Housing          
Disaggregation of Revenue [Line Items]          
Disaggregated fee revenues $ 36.9 $ 36.3 $ 69.0 $ 67.0