Leases (Tables)

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Lease, Cost [Table Text Block]

The following table details the components of lease cost:

	Years Ended December 31,
(in millions)	2022		2021		2020
Operating lease cost (1)	$	8.2	$	9.9	$	9.9
Finance lease cost:
Amortization of right-of-use assets	2.3		2.3		2.1
Interest on lease liabilities	0.3		0.4		0.5
Sublease income	(3.5)		(3.0)		(3.0)
Total lease cost	$	7.3	$	9.6	$	9.5

(1) Includes short-term and variable lease costs, which were immaterial.

Schedule of Lease Assets and Liabilities [Table Text Block]

The following table presents supplemental balance sheet information related to finance leases:

(in millions)	Balance Sheet Line	December 31, 2022		December 31, 2021
Finance lease right-of-use assets	Property, plant, and equipment, net	$	5.3	$	8.1
Current finance lease liabilities	Other accrued expenses	$	2.5	$	2.7
Long-term finance lease liabilities	Other liabilities	1.4		3.6
Total finance lease liabilities		$	3.9	$	6.3

Schedule of Lease Payments [Table Text Block]

The following table presents supplemental cash flow information related to leases:

	Years Ended December 31,
(in millions)	2022		2021		2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	12.4	$	10.2	$	9.6
Operating cash flows from finance leases	0.3		0.4		0.5
Financing cash flows from finance leases	4.8		2.3		2.0
Lease liabilities arising from obtaining right-of-use assets:
Operating leases	$	2.0	$	6.5	$	2.2
Finance leases	0.4		0.3		0.1

Finance Lease, Liability, Maturity [Table Text Block]

The following table details weighted-average remaining lease terms and discount rates:

	December 31, 2022		December 31, 2021
Weighted-average remaining lease term (in years):
Operating leases	2.5		3.1
Finance leases	2.2		3.1
Weighted-average discount rate:
Operating leases	3.4	%	3.8	%
Finance leases	5.3	%	5.4	%

Schedule of Maturities of Lease liabilities [Table Text Block]

The following table details maturities of lease liabilities as of December 31, 2022:

(in millions)	Operating Leases		Finance Leases
2023	$	8.8	$	2.5
2024	4.2		1.4
2025	2.0		0.1
2026	0.7		0.1
2027	0.3		—
2028 and thereafter	—		—
Total lease payments	16.0		4.1
Less interest	(0.4)		(0.2)
Present value of lease liabilities	$	15.6	$	3.9