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Leases (Tables)
 3 Months Ended
Mar. 31, 2023
Leases [Abstract]  
Schedule of Lease, Cost The components of lease expense were as follows:
Three Months Ended
March 31,
($ in millions)20232022
Operating lease cost$5.9 $3.3 
Short-term lease cost1.3 0.4 
Variable lease cost1.7 1.4 
Total lease cost$8.9 $5.1 
Schedule of Cash Flow and Supplemental Information Supplemental cash flow information related to leases was as follows:
Three Months Ended
March 31,
($ in millions)20232022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$4.9 $3.2 
Right-of-use assets obtained in exchange for new operating lease liabilities$0.6 $9.7 
Schedule of Lessee, Operating Lease, Liability, Maturity Maturities of operating lease liabilities were as follows:
($ in millions)March 31,December 31,
Year20232022
2023 (remaining period as of)$14.5 $19.0 
202418.3 18.1 
202516.2 16.0 
202613.4 13.4 
20279.3 9.4 
Thereafter51.5 50.8 
123.2 126.7 
Less: imputed lease interest(17.1)(17.7)
Total lease liabilities$106.1 $109.0