Consolidated Statements of Equity - USD ($) $ in Millions		Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Non-controlling Interests
Beginning Balance at Dec. 31, 2017		$ 805.2	$ 1.6	$ 0.3	$ 445.7	$ 0.0	$ 364.3	$ (8.1)	$ 3.0
Beginning balance (shares) at Dec. 31, 2017				30,810,000
Increase (Decrease) in Stockholders' Equity
Net income		90.0					88.0		2.0
Other comprehensive income		(21.8)						(21.8)
Share-based compensation expense		6.9			6.9
Common stock issued from share-based compensation plans		10.3			10.3
Common stock issued from share-based compensation plans (shares)				600,000
Common stock repurchases from share-based compensation plans		(2.7)			(2.7)
Common stock repurchases from share-based compensation plan (shares)				(50,000.00)
Dividend distribution to noncontrolling interest		(0.4)							(0.4)
Other		(0.1)							(0.1)
Ending Balance at Dec. 31, 2018		889.0		$ 0.3	460.2	0.0	453.9	(29.9)	4.5
Ending balance (shares) at Dec. 31, 2018				31,360,000
Increase (Decrease) in Stockholders' Equity
Net income		46.8					46.4		0.4
Other comprehensive income		(6.0)						(6.0)
Common stock issuance, net of equity issuance costs	[1]	286.3		$ 0.1	286.2
Common stock issuance, net of equity issuance costs (shares)	[1]			4,030,000.00
Share-based compensation expense		9.0			9.0
Common stock issued from share-based compensation plans		9.4			9.4
Common stock issued from share-based compensation plans (shares)				300,000
Common stock repurchases from share-based compensation plans		(2.0)			(2.0)
Common stock repurchases from share-based compensation plan (shares)				110,000
Dividend distribution to noncontrolling interest		(0.4)							(0.4)
Other		0.3							0.3
Ending Balance at Dec. 31, 2019		$ 1,232.4		$ 0.4	762.8	0.0	500.3	(35.9)	4.8
Ending balance (shares) at Dec. 31, 2019		35,799,994		35,800,000
Increase (Decrease) in Stockholders' Equity
Net income		$ 309.5					308.1		1.4
Other comprehensive income		38.3						38.3
Share-based compensation expense		8.9			8.9
Common stock issued from share-based compensation plans		11.0			11.0
Common stock issued from share-based compensation plans (shares)				420,000
Common stock repurchases from share-based compensation plans		(1.9)			(1.9)
Common stock repurchases from share-based compensation plan (shares)				(30,000.00)
Common stock repurchases	[2]	(19.3)				(19.3)
Other		0.4							0.4
Ending Balance at Dec. 31, 2020		$ 1,579.3		$ 0.4	$ 780.8	$ (19.3)	$ 808.4	$ 2.4	$ 6.6
Ending balance (shares) at Dec. 31, 2020		36,185,829		36,190,000

[1] Equity issuance costs were $9.5 during the year ended December 31, 2019.

[2] Includes $19.3 in shares repurchased through our share repurchase program. Refer to Note 2, “Significant Accounting Policies,” for further information.