Condensed Consolidated Statement of Equity (Unaudited) Statement - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Non-controlling Interests
Beginning balance at Dec. 31, 2017	$ 805.2	$ 0.3	$ 445.7	$ 364.3	$ (8.1)	$ 3.0
Beginning balance (shares) at Dec. 31, 2017		30,810,000
Increase (Decrease) in Stockholders' Equity
Net income	6.3			5.8		0.5
Other comprehensive (loss) income	12.4				12.4	0.0
Share-based compensation expense	3.2		3.2
Common stock issued from share-based compensation plans	1.3		1.3
Common stock issued from share-based compensation plans (shares)		200,000
Common stock repurchases	(2.2)		(2.2)
Common stock repurchases (shares)		(40,000)
Other	0.1					0.1
Ending balance at Mar. 31, 2018	828.6	$ 0.3	448.0	372.4	4.3	3.6
Ending balance (shares) at Mar. 31, 2018		30,970,000
Beginning balance at Dec. 31, 2018	$ 889.0	$ 0.3	460.2	453.9	(29.9)	4.5
Beginning balance (shares) at Dec. 31, 2018	31,363,650	31,360,000
Increase (Decrease) in Stockholders' Equity
Net income	$ 1.0			0.9		0.1
Other comprehensive (loss) income	(4.5)				(4.6)	0.1
Share-based compensation expense	2.4		2.4
Common stock issued from share-based compensation plans	8.3		8.3
Common stock issued from share-based compensation plans (shares)		410,000
Common stock repurchases	(2.7)		(2.7)
Common stock repurchases (shares)		(40,000)
Ending balance at Mar. 31, 2019	$ 893.5	$ 0.3	$ 468.2	$ 454.8	$ (34.5)	$ 4.7
Ending balance (shares) at Mar. 31, 2019	31,731,862	31,730,000