Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2022		16,653,928
Beginning balance at Dec. 31, 2022	$ 267.9	$ 16.6	$ 149.8	$ 238.8	$ (86.9)	$ (61.8)	$ 11.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	11.0			5.8		5.1	0.1
Stock-based compensation expense	1.6		1.6
Stock-based compensation activity (in shares)		9,535
Stock-based compensation activity	0.0	$ 0.1	(0.1)
Dividends	(1.6)			(1.6)
Ending balance (in shares) at Mar. 31, 2023		16,663,463
Ending balance at Mar. 31, 2023	278.9	$ 16.7	151.3	243.0	(86.9)	(56.7)	11.5
Beginning balance (in shares) at Dec. 31, 2023		17,029,938
Beginning balance at Dec. 31, 2023	289.9	$ 17.0	155.9	240.1	(88.9)	(43.7)	9.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	7.8			9.6		(1.3)	(0.5)
Stock-based compensation expense	1.5		1.5
Stock-based compensation activity (in shares)		3,065
Dividends	(1.6)			(1.6)
Payments of withholding taxes on share awards	(0.1)				(0.1)
Ending balance (in shares) at Mar. 31, 2024		17,033,003
Ending balance at Mar. 31, 2024	$ 297.5	$ 17.0	$ 157.4	$ 248.1	$ (89.0)	$ (45.0)	$ 9.0