XML 51 R44.htm IDEA: XBRL DOCUMENT v3.25.1
Contracts with Customers - Summary of Changes in Deferred Revenue Balances (Detail)
$ in Millions
 3 Months Ended
Mar. 31, 2025
USD ($)
Deferred Revenue Arrangement [Line Items]  
Deferred revenue beginning balance $ 604.3
Incremental deferred revenue 305.6
Revenue recognized during the nine-month period ended September 30, 2024 included in deferred revenue at December 31, 2023 (247.7)
Net change in collected billings/deposits received from customers 14.0
Impact of change in foreign exchange rates 13.1
Deferred revenue recognized from business acquisitions 6.3
Deferred revenue ending balance 695.6
Brokerage [Member]  
Deferred Revenue Arrangement [Line Items]  
Deferred revenue beginning balance 430.9
Incremental deferred revenue 279.4
Revenue recognized during the nine-month period ended September 30, 2024 included in deferred revenue at December 31, 2023 (226.8)
Net change in collected billings/deposits received from customers 20.9
Impact of change in foreign exchange rates 13.1
Deferred revenue recognized from business acquisitions 6.3
Deferred revenue ending balance 523.8
Risk Management [Member]  
Deferred Revenue Arrangement [Line Items]  
Deferred revenue beginning balance 173.4
Incremental deferred revenue 26.2
Revenue recognized during the nine-month period ended September 30, 2024 included in deferred revenue at December 31, 2023 (20.9)
Net change in collected billings/deposits received from customers (6.9)
Deferred revenue ending balance $ 171.8