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Leases (Tables)

12 Months Ended

Dec. 31, 2023

Leases [Abstract]

Summary of Lease Expense Cost

The components of lease expense were as follows:


			Year Ended December 31,
			2023						2022						2021
Operating lease cost:
Amortization of right-of-use assets			$	4.0					$	5.6					$	5.6
Interest on lease liabilities			0.8						1.1						1.3
Total operating lease cost			$	4.8					$	6.7					$	6.9

Schedule of Leases Supplemental Balance Sheets


						December 31,
Leases			Classification			2023						2022
Operating lease right-of-use assets			Other assets			$	16.2					$	19.4

Operating lease liabilities, current portion			Other current liabilities			$	3.5					$	5.8
Operating lease liabilities			Other liabilities			13.8						14.8
Total operating lease liabilities						$	17.3					$	20.6

Operating leases:
Weighted average remaining lease term (years)						6.2						5.9
Weighted average discount rate						5.3		%				4.1		%

Lessee, Operating Lease, Liability, Maturity

The maturity analysis below summarizes future undiscounted cash flows for our operating leases as of December 31, 2023:


Year			As of December 31, 2023
2024			$	4.3
2025			3.7
2026			2.9
2027			2.3
2028			2.0
Thereafter			5.2
Total undiscounted lease liabilities			20.4
Less: Imputed interest			3.1
Total lease liabilities			$	17.3