Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
NET INCOME (LOSS)	$ 30.2	$ 49.2	$ 60.0	$ 87.9
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustment	(2.5)	(4.0)	(30.4)	(0.4)
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 $1.5, $2.9, $11.2 and $4.3, respectively	(7.0)	(9.5)	(38.6)	(13.7)
Reclassification adjustment for (gain) loss	2.1	(0.3)	2.7	(0.7)
Unrealized gain (loss) on interest rate risk management activities, net of tax	(4.9)	(9.8)	(36.0)	(14.3)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	(7.3)	(13.8)	(66.4)	(14.8)
COMPREHENSIVE INCOME (LOSS)	$ 22.8	$ 35.4	$ (6.4)	$ 73.1