CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Millions, $ in Millions	Total	Restatement adjustment	Common Stock	Additional Paid-In Capital	Retained Earnings	Retained Earnings Restatement adjustment	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning Balance at Dec. 31, 2019	$ 2,334.7		$ 0.9	$ 1,205.7	$ 1,442.4		$ (318.1)	$ 3.8
Beginning Balance (in shares) at Dec. 31, 2019			91.2
Net income (loss)	(19.9)				(20.1)			0.2
Currency translation adjustments	(39.1)						(39.1)
Issuance of common stock for incentive stock programs, net of (payments of) taxes from withheld shares	1.9			1.9
Issuance of common stock for incentive stock programs, net of (payments of) taxes from withheld shares (in shares)			0.2
Stock-based compensation expense	5.1			5.1
Cumulative effect of adopting ASU 2016-13 | ASU 2016-13		$ (2.5)				$ (2.5)
Ending Balance at Mar. 31, 2020	2,280.2		$ 0.9	1,212.7	1,419.8		(357.2)	4.0
Ending Balance (in shares) at Mar. 31, 2020			91.4
Beginning Balance at Dec. 31, 2020	2,434.4		$ 0.9	1,234.0	1,382.6		(187.4)	4.3
Beginning Balance (in shares) at Dec. 31, 2020			91.6
Net income (loss)	26.2				26.1			0.1
Currency translation adjustments	(13.1)						(12.9)	(0.2)
Issuance of common stock for incentive stock programs, net of (payments of) taxes from withheld shares	(3.2)			(3.2)
Issuance of common stock for incentive stock programs, net of (payments of) taxes from withheld shares (in shares)			0.2
Stock-based compensation expense	5.1			5.1
Changes to noncontrolling interest	(0.6)							(0.6)
Ending Balance at Mar. 31, 2021	$ 2,448.8		$ 0.9	$ 1,235.9	$ 1,408.7		$ (200.3)	$ 3.6
Ending Balance (in shares) at Mar. 31, 2021			91.8