Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
NET INCOME (LOSS)	$ 126.4	$ 38.0	$ 186.4	$ 125.9
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustment	6.0	(11.6)	(24.4)	(12.0)
Net unrealized gain (loss) on interest rate risk management activities, net of tax:
Unrealized gain (loss) arising during the period, net of tax benefit (provision) of $0.6, $1.7, $12.6 and $6.0, respectively	(1.8)	(5.6)	(40.4)	(19.2)
Unrealized gain (loss) on interest rate risk management activities, net of tax	1.0	(5.4)	(35.0)	(19.7)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	7.0	(17.0)	(59.3)	(31.7)
COMPREHENSIVE INCOME (LOSS)	133.4	21.0	127.0	94.2
SG&A
Net unrealized gain (loss) on interest rate risk management activities, net of tax:
Reclassification adjustment for (gain) loss included in interest expense, net of tax benefit (provision) of $0.8, $—, $1.7 and ($0.2), respectively	0.1	0.1	0.1	0.1
Interest Expense
Net unrealized gain (loss) on interest rate risk management activities, net of tax:
Reclassification adjustment for (gain) loss included in interest expense, net of tax benefit (provision) of $0.8, $—, $1.7 and ($0.2), respectively	$ 2.7	$ 0.1	$ 5.4	$ (0.6)