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Leases (Tables)
 6 Months Ended
Jun. 30, 2024
Leases [Abstract]  
Schedule of Lease, Cost
The components of lease expense were as follows:
Three Months Ended
June 30,		Six Months Ended
June 30,
($ in millions)2024202320242023
Operating lease cost$6.1 $4.8 $11.7 $10.7 
Finance lease - amortization of right-of-use (ROU) assets0.3 — 0.3 — 
Short-term lease cost0.6 1.2 1.1 2.5 
Variable lease cost1.9 1.3 3.8 3.0 
Total lease cost$8.9 $7.3 $16.9 $16.2 
Supplemental cash flow information related to leases were as follows:
Three Months Ended
June 30,		Six Months Ended
June 30,
($ in millions)2024202320242023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$15.0 $5.0 $20.3 $9.9 
Financing cash flows from finance leases$22.9 $— $22.9 $— 
Right-of-use assets obtained in exchange for new lease liabilities
Operating leases$29.9 $2.9 $34.1 $3.5 
Finance Leases$24.3 $— $24.3 $— 
Schedule Of Assets And Liabilities, Lessee
The following table summarizes the finance lease amounts in the Consolidated Balance Sheets:

Finance Leases
($ in millions)Balance Sheet ClassificationJune 30, 2024
ROU assets, netOther noncurrent assets$31.0 
Lease liabilities (current)Other current liabilities$0.9 
Lease liabilities (noncurrent)Other long-term liabilities$2.4 
Schedule of Lessee, Operating Lease, Liability, Maturity
Maturities of operating lease liabilities were as follows:
($ in millions)June 30,December 31,
Year20242023
2024 (remaining period as of)$12.1 $20.9 
202522.7 18.7 
202619.8 15.7 
202715.3 11.2 
202813.8 9.5 
Thereafter36.2 42.1 
119.9 118.1 
Less: imputed lease interest(15.0)(15.9)
Total lease liabilities$104.9 $102.2 
Schedule of Lessee, Finance Lease, Liability, Maturity
Maturities of finance lease liabilities were as follows:
($ in millions)June 30,
Year2024
2024 (remaining period as of)$0.4 
20250.9 
20260.9 
20270.8 
20280.5 
Thereafter0.1 
3.6 
Less: imputed lease interest(0.3)
Total lease liabilities$3.3