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Leases - Schedule of Leases Supplemental Balance Sheets (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Operating Leases    
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other assets Other assets
Operating lease right-of-use assets $ 17.1 $ 19.4
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Other current liabilities Other current liabilities
Operating lease liabilities, current portion $ 3.5 $ 5.8
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Other liabilities Other liabilities
Operating lease liabilities $ 14.6 $ 14.8
Total operating lease liabilities $ 18.1 $ 20.6
Operating leases:    
Weighted average remaining lease term (years) 6 years 3 months 18 days 5 years 10 months 24 days
Weighted average discount rate 5.20% 4.10%