Consolidated Statements of Equity (unaudited) - USD ($) $ in Millions		Total	Common Stock	Treasury Stock		Additional Paid-in Capital	Accumulated Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2018			72,400,000	200,000
Beginning balance at Dec. 31, 2018		$ 481.4	$ 0.7	$ (4.8)		$ 39.6	$ 563.9	$ (120.0)	$ 2.0
Increase (Decrease) in Stockholders' Equity
Net (loss) income		24.2					24.0		0.2
Issuance of common stock in connection with stock plans (in shares)	[1]		300,000
Share-based compensation		5.6				5.6
Exercise of stock options (in shares)			300,000
Exercise of stock options		$ 5.0				5.0
Share repurchases (in shares)		125,700		100,000	[2]
Share repurchases	[2]	$ (3.2)		$ (3.2)
Other comprehensive income (loss)		(0.7)						(0.7)
Ending balance (in shares) at Jun. 30, 2019			73,000,000.0	300,000
Ending balance at Jun. 30, 2019		512.3	$ 0.7	$ (8.0)		50.2	587.9	(120.7)	2.2
Beginning balance (in shares) at Mar. 31, 2019			72,900,000	300,000
Beginning balance at Mar. 31, 2019		508.0	$ 0.7	$ (8.0)		44.6	585.3	(116.8)	2.2
Increase (Decrease) in Stockholders' Equity
Net (loss) income		2.6					2.6		0.0
Share-based compensation		3.9				3.9
Exercise of stock options (in shares)			100,000
Exercise of stock options		1.7				1.7
Other comprehensive income (loss)		(3.9)						(3.9)
Ending balance (in shares) at Jun. 30, 2019			73,000,000.0	300,000
Ending balance at Jun. 30, 2019		512.3	$ 0.7	$ (8.0)		50.2	587.9	(120.7)	2.2
Beginning balance (in shares) at Dec. 31, 2019			73,200,000	300,000
Beginning balance at Dec. 31, 2019		541.1	$ 0.7	$ (8.6)		53.4	610.2	(117.0)	2.4
Increase (Decrease) in Stockholders' Equity
Net (loss) income		0.0					(0.2)		0.2
Issuance of common stock in connection with stock plans (in shares)	[1]		100,000
Share-based compensation		$ 2.8				2.8
Exercise of stock options (in shares)		40,000	0
Exercise of stock options		$ 0.7				0.7
Share repurchases (in shares)		17,300		100,000	[2]
Share repurchases	[2]	$ (0.3)		$ (0.3)
Other comprehensive income (loss)		(28.7)						(28.7)
Dividends and other changes in noncontrolling interest		(0.4)
Ending balance (in shares) at Jun. 30, 2020			73,300,000	400,000
Ending balance at Jun. 30, 2020		515.2	$ 0.7	$ (8.9)		56.9	610.0	(145.7)	2.2
Beginning balance (in shares) at Mar. 31, 2020			73,300,000	400,000
Beginning balance at Mar. 31, 2020		509.4	$ 0.7	$ (8.9)		54.3	611.3	(150.5)	2.5
Increase (Decrease) in Stockholders' Equity
Net (loss) income		(1.2)					(1.3)		0.1
Share-based compensation		2.3				2.3
Exercise of stock options		0.3				0.3
Other comprehensive income (loss)		4.8						4.8
Ending balance (in shares) at Jun. 30, 2020			73,300,000	400,000
Ending balance at Jun. 30, 2020		$ 515.2	$ 0.7	$ (8.9)		$ 56.9	$ 610.0	$ (145.7)	$ 2.2

[1] The par value of common shares issued may not be included in the table due to rounding. Total share amounts for common stock and treasury stock may not sum due to rounding.

[2] Refer to Note 15, “Stock Incentive Plans”, for further information.