Leases

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Leases

15. Leases

Operating lease cost is recognized over the lease term on a straight-line basis, while finance lease cost is amortized over the expected term on a straight-line basis. Variable lease cost not dependent on an index or rate is recognized when incurred and typically consists of amounts owed by the Company to a lessor that are not fixed, such as reimbursement for common area maintenance and utilities cost.

The components of lease expense were as follows (in millions):

	2021			2020				2019
Amortization of right-of-use assets	$	1.5		$	0.7		$	0.3
Interest on lease liabilities		0.1			0.1			—
Total finance lease cost		1.6			0.8			0.3
Operating lease cost		24.0			23.3			24.9
Short term lease cost		4.2			3.9			2.2
Variable lease cost		3.0			3.4			3.5
Sublease income		(2.0	)		(1.9	)		(1.2	)
Total lease cost	$	30.8		$	29.5		$	29.7

Supplemental balance sheet information related to leases was as follows (dollars in millions):

	December 31,
	2021		2020
Operating leases
Operating lease assets, net	$	59.9	$	67.4
Other current liabilities		17.9		21.3
Operating lease liability—long term		41.8		47.0

	December 31,
	2021			2020			2019
Weighted average remaining lease term		5.1 years			5.2 years			5.0 years
Weighted average discount rate		1.6	%		1.9	%		2.3	%

	December 31,
	2021		2020
Finance leases
Property, plant and equipment, net	$	4.6	$	3.7
Current portion of long-term debt		1.7		0.8
Long-term debt		2.6		2.6

	December 31,
	2021			2020			2019
Weighted average remaining lease term		2.9 years			3.3 years			3.7 years
Weighted average discount rate		1.6	%		2.2	%		3.0	%

Supplemental cash flow information related to leases was as follows (in millions):

	2021		2020		2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from finance leases	$	0.1	$	0.1	$	—
Operating cash flows from operating leases		21.2		24.0		27.1
Financing cash flows from finance leases		1.6		0.9		0.4
Right-of-use assets obtained in exchange for lease liabilities
Operating leases	$	21.2	$	24.3
Finance leases		2.7		2.6

Future lease payments under operating leases and finance leases as follows (in millions):

	Operating Leases			Finance Leases
Twelve months ending December 31:
2022	$	18.7		$	1.7
2023		13.9			1.4
2024		9.1			0.9
2025		6.9			0.3
2026		5.3			0.1
Thereafter		8.1			—
Total undiscounted lease payments		62.0			4.4
Less: imputed interest		(2.3	)		(0.1	)
Total lease liabilities	$	59.7		$	4.3