Leases (Tables)

12 Months Ended

Dec. 31, 2020

Leases [Abstract]

Lease, Cost [Table Text Block]

Components of lease expense for the year ended December 31, 2020 and 2019 were as follows (in millions):

	2020		2019
Operating lease expense	$	32.9	$	32.1
Short-term lease expense	6.6		2.1
Variable lease expense	6.4		5.8
Total lease expense	$	45.9	$	40.0

Lessee, Operating Lease, Disclosure

Supplemental information related to leases for December 31, 2020 and 2019 (in millions):

	2020			2019
Weighted-average remaining lease term of operating leases	3.7 years			4.2 years
Weighted-average discount rate of operating leases	3.91		%	4.26		%
Cash paid for operating lease liabilities	$	34.0		$	32.1

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Maturities of operating lease liabilities at December 31, 2020 (in millions):

2021	$	32.4
2022	25.9
2023	20.1
2024	12.7
2025	5.4
Thereafter	2.7
Total future minimum lease payments	99.2
Less: imputed interest	6.9
Total operating lease liabilities	$	92.3