Leases (Tables)

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Schedule of Lease, Cost

The components of lease expense were as follows:

($ in millions)	2022		2021		2020
Operating lease cost	$	15.5	$	12.7	$	12.8
Short-term lease cost	1.3		1.3		0.8
Variable lease cost	6.8		4.8		3.8
Total lease cost	$	23.6	$	18.8	$	17.4

Schedule of Cash Flow and Supplemental information

Supplemental information related to leases was as follows:

($ in millions)	2022		2021		2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	13.3	$	12.1	$	12.6
Right-of-use assets obtained in exchange for new operating lease liabilities	$	47.6	$	13.3	$	6.1

Schedule of Lessee, Operating Lease, Liability, Maturity

Maturities of lease liabilities as of December 31, 2022 were as follows:

($ in millions)	Operating
Year	Leases
2023	$	19.0
2024	18.1
2025	16.0
2026	13.4
2027	9.4
Thereafter	50.8
	126.7
Less: imputed lease interest	(17.7)
Total lease liabilities	$	109.0