Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Dec. 31, 2019
Tax benefit (provision) of unrealized gain (loss) on interest rate swap	$ (0.6)	$ (1.7)	$ (12.6)	$ (6.0)
SG&A
Tax benefit (provision) of reclassification adjustment	0.0	0.0	0.0	0.0
Interest Expense
Tax benefit (provision) of reclassification adjustment	$ 0.8	$ 0.0	$ 1.7	$ (0.2)