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 (loss)	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, 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 (loss)	21.2
Ending balance (in shares) at Sep. 30, 2023		17,009,649
Ending balance at Sep. 30, 2023	287.3	$ 17.0	154.3	256.3	(88.8)	(62.2)	10.7
Beginning balance (in shares) at Mar. 31, 2023		16,663,463
Beginning balance at Mar. 31, 2023	278.9	$ 16.7	151.3	243.0	(86.9)	(56.7)	11.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	7.8			5.4		2.9	(0.5)
Stock-based compensation expense	1.7		1.7
Stock-based compensation activity (in shares)		309,237
Stock-based compensation activity	0.0	$ 0.3	(0.3)
Dividends	(1.6)			(1.6)
Payments of withholding taxes on share awards	(1.2)				(1.2)
Ending balance (in shares) at Jun. 30, 2023		16,972,700
Ending balance at Jun. 30, 2023	285.6	$ 17.0	152.7	246.8	(88.1)	(53.8)	11.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	2.4			11.1		(8.4)	(0.3)
Stock-based compensation expense	1.6		1.6
Stock-based compensation activity (in shares)		36,949
Dividends	(1.6)			(1.6)
Payments of withholding taxes on share awards	(0.7)				(0.7)
Ending balance (in shares) at Sep. 30, 2023		17,009,649
Ending balance at Sep. 30, 2023	287.3	$ 17.0	154.3	256.3	(88.8)	(62.2)	10.7
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 (loss)	7.8			9.6		(1.3)	(0.5)
Stock-based compensation expense	1.5		1.5
Stock-based compensation activity (in shares)		3,065
Stock-based compensation activity	0.0
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
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 (loss)	32.1
Ending balance (in shares) at Sep. 30, 2024		18,097,428
Ending balance at Sep. 30, 2024	343.0	$ 18.1	183.6	266.5	(91.3)	(41.0)	7.1
Beginning balance (in shares) at Mar. 31, 2024		17,033,003
Beginning balance at Mar. 31, 2024	297.5	$ 17.0	157.4	248.1	(89.0)	(45.0)	9.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	7.2			11.9		(3.8)	(0.9)
Stock-based compensation expense	1.2		1.2
Stock-based compensation activity (in shares)		132,012
Stock-based compensation activity	0.0	$ 0.2	(0.2)
Dividends	(1.7)			(1.7)
Payments of withholding taxes on share awards	(2.3)				(2.3)
Ending balance (in shares) at Jun. 30, 2024		17,165,015
Ending balance at Jun. 30, 2024	301.9	$ 17.2	158.4	258.3	(91.3)	(48.8)	8.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	17.1			9.8		7.8	(0.5)
Stock-based compensation expense	1.4		1.4
Stock-based compensation activity (in shares)		75,480
Stock-based compensation activity	0.0
Issuances of common stock (in shares)		856,933
Issuances of common stock	24.7	$ 0.9	23.8
Dividends	(2.1)			(1.6)			(0.5)
Ending balance (in shares) at Sep. 30, 2024		18,097,428
Ending balance at Sep. 30, 2024	$ 343.0	$ 18.1	$ 183.6	$ 266.5	$ (91.3)	$ (41.0)	$ 7.1