v3.24.0.1
Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]  
Summary Of Activity Of The Allowance For Credit Losses For Accounts Receivable The following table summarizes the activity of the ACL for Accounts receivable (in millions):
December 31,
20232022
Opening balance$9.0 $7.1 
Allowances3.6 5.5 
Net write-offs and other(4.0)(3.6)
Closing balance$8.6 $9.0 
Schedule Of Useful Lives Of Property and Equipment
The useful lives of property and equipment are as follows:
DescriptionUseful Life
Leasehold improvementsLesser of estimated useful life or remaining lease term
Office furniture and equipmentFive years
Computer software and internally-developed softwareThree years
Computer equipmentThree years