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Lease Obligations - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Lessee, Lease, Description [Line Items]          
Remaining lease term 4 years 3 months 18 days   4 years 3 months 18 days   4 years 7 months 6 days
Discount rate 5.98%   5.98%   6.12%
Operating lease expense $ 5.7 $ 5.7 $ 16.4 $ 17.2  
Variable lease expense 1.2 0.0 3.0 1.5  
Cash paid for amounts included in lease liabilities 6.4 6.0 16.7 18.8  
Sublease income 0.0 $ 1.3 0.7 $ 3.9  
Total future undiscounted lease payments under leases not yet commenced $ 7.1   $ 7.1    
Operating lease not yet commenced, term of contract 4 years 4 months 24 days   4 years 4 months 24 days    
Minimum          
Lessee, Lease, Description [Line Items]          
Term of lease contract 1 year   1 year    
Maximum          
Lessee, Lease, Description [Line Items]          
Term of lease contract 10 years   10 years