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, 2021		16,339,722
Beginning balance at Dec. 31, 2021	$ 324.8	$ 16.3	$ 142.9	$ 259.4	$ (85.3)	$ (19.2)	$ 10.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	3.2			6.1		(3.1)	0.2
Stock-based compensation expense	1.6		1.6
Stock-based compensation activity (in shares)		(5,502)
Dividends	(1.6)			(1.6)
Payments of withholding taxes on share awards	(0.1)				(0.1)
Ending balance (in shares) at Mar. 31, 2022		16,334,220
Ending balance at Mar. 31, 2022	327.9	$ 16.3	144.5	263.9	(85.4)	(22.3)	10.9
Beginning balance (in shares) at Dec. 31, 2021		16,339,722
Beginning balance at Dec. 31, 2021	324.8	$ 16.3	142.9	259.4	(85.3)	(19.2)	10.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	(23.9)
Ending balance (in shares) at Sep. 30, 2022		16,650,338
Ending balance at Sep. 30, 2022	299.6	$ 16.6	148.0	264.4	(86.6)	(54.0)	11.2
Beginning balance (in shares) at Mar. 31, 2022		16,334,220
Beginning balance at Mar. 31, 2022	327.9	$ 16.3	144.5	263.9	(85.4)	(22.3)	10.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	(13.3)			1.0		(14.8)	0.5
Stock-based compensation expense	1.8		1.8
Stock-based compensation activity (in shares)		308,621
Stock-based compensation activity	0.0	$ 0.3	(0.3)
Dividends	(1.6)			(1.6)
Payments of withholding taxes on share awards	(1.0)				(1.0)
Ending balance (in shares) at Jun. 30, 2022		16,642,841
Ending balance at Jun. 30, 2022	313.8	$ 16.6	146.0	263.3	(86.4)	(37.1)	11.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	(13.8)			2.7		(16.9)	0.4
Stock-based compensation expense	2.0		2.0
Stock-based compensation activity (in shares)		7,497
Dividends	(2.2)			(1.6)			(0.6)
Payments of withholding taxes on share awards	(0.2)				(0.2)
Ending balance (in shares) at Sep. 30, 2022		16,650,338
Ending balance at Sep. 30, 2022	299.6	$ 16.6	148.0	264.4	(86.6)	(54.0)	11.2
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