Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 31.7	$ (208.3)
Other comprehensive income (loss), net of tax:
Foreign currency translation	(36.1)	(54.3)
Interest rate swaps	33.9	(24.0)
Tax receivable agreement	4.1	25.9
Pension	(0.8)	(0.2)
Comprehensive income (loss)	$ 32.8	$ (260.9)