Schedule II - Valuation and Qualifying Accounts (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Valuation and Qualifying Accounts Disclosure [Roll Forward]
Balance at beginning of period		$ 12.9	$ 3.2	$ 4.2
Additions charged to costs, provisions and expenses		2.6	6.3	3.2
Deductions	[1]	(0.5)	3.4	(4.2)
Balance at end of period		$ 15.0	$ 12.9	$ 3.2

[1] Includes impact of write-offs, translation of foreign currencies and reclassifications for presentation purposes.