Leases (Tables)

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Components of Lease Expenses

The components of operating lease expense were as follows:

	Three Months Ended				Six Months Ended
	June 30, 2021		June 30, 2020		June 30, 2021		June 30, 2020
Operating lease costs	$	12.4	$	13.9	$	24.3	$	27.6
Variable lease costs	2.1		2.4		4.8		4.7
Sublease income	(0.8)		(0.9)		(1.6)		(1.8)
	$	13.7	$	15.4	$	27.5	$	30.5