Leases (Tables)

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Summary of Lease Expense Cost

The components of lease expense were as follows:

	Year Ended December 31,
	2022		2021		2020
Operating lease cost:
Amortization of right-of-use assets	$	5.6	$	5.6	$	4.5
Interest on lease liabilities	1.1		1.3		1.1
Total operating lease cost	$	6.7	$	6.9	$	5.6

Schedule of Leases Supplemental Balance Sheets

		December 31,
Leases	Classification	2022			2021
Operating lease right-of-use assets	Other assets	$	19.4		$	28.3
Operating lease liabilities, current portion	Other current liabilities	$	5.8		$	5.8
Operating lease liabilities	Other liabilities	14.8			24.2
Total operating lease liabilities		$	20.6		$	30.0
Operating leases:
Weighted average remaining lease term (years)		5.9			7.0
Weighted average discount rate		4.1		%	4.1		%

Lessee, Operating Lease, Liability, Maturity

Lease maturities as of December 31, 2022, are as follows:

Year	As of December 31, 2022
2023	$	6.5
2024	4.3
2025	2.7
2026	2.3
2027	1.8
Thereafter	5.9
Total undiscounted lease liabilities	23.5
Less: Imputed interest	2.9
Total Lease liabilities	$	20.6