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Leases (Tables)
 12 Months Ended
Dec. 31, 2024
Leases [Abstract]  
Schedule of Lease, Cost
The components of lease expense were as follows:
($ in millions)202420232022
Operating lease cost$24.2 $20.3 $15.5 
Finance lease - amortization of right-of-use (ROU) assets0.9 — — 
Finance lease - interest on lease liabilities0.1 — — 
Short-term lease cost2.5 6.1 1.3 
Variable lease cost9.0 5.5 6.8 
Total lease cost$36.7 $31.9 $23.6 
Supplemental information related to leases was as follows:
($ in millions)202420232022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$32.5 $19.1 $13.3 
Operating cash flows from finance leases$0.1 $— $— 
Financing cash flows from finance leases$23.3 $0.1 $— 
Right-of-use assets obtained in exchange for new lease liabilities:
Operating leases$41.2 $10.7 $47.6 
Finance leases$24.6 $— $— 
Schedule of Assets And Liabilities, Lessee The following table summarizes the finance lease amounts in the consolidated balance sheets as of December 31, 2024:
December 31,
($ in millions)Balance Sheet Classification2024
ROU assets, netOther noncurrent assets$29.7 
Lease liabilities (current)Other current liabilities$0.9 
Lease liabilities (noncurrent)Other long-term liabilities$2.1 
Schedule of Lessee, Operating Lease, Liability, Maturity
Maturities of lease liabilities as of December 31, 2024 were as follows:
($ in millions)OperatingFinance
YearLeasesLeases
2025$23.4 $0.9 
202620.7 0.9 
202716.3 0.9 
202814.9 0.5 
202911.5 0.1 
Thereafter26.3 — 
113.1 3.3 
Less: imputed lease interest(13.4)(0.3)
Total lease liabilities$99.7 $3.0 
Finance Lease, Liability, to be Paid, Maturity
Maturities of lease liabilities as of December 31, 2024 were as follows:
($ in millions)OperatingFinance
YearLeasesLeases
2025$23.4 $0.9 
202620.7 0.9 
202716.3 0.9 
202814.9 0.5 
202911.5 0.1 
Thereafter26.3 — 
113.1 3.3 
Less: imputed lease interest(13.4)(0.3)
Total lease liabilities$99.7 $3.0