Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Stockholders' Equity [Abstract]
Accounting Standards Update [Extensible List]				us-gaap:AccountingStandardsUpdate201802Member
Foreign currency translation adjustment tax expense (benefit)		$ 0.2	$ (4.7)	$ 0.2
Derivative financial instruments, tax expense (benefit)	$ (0.8)	$ 1.5	$ 8.5	$ 9.6