Consolidated Statements of Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in-Capital	Accumulated Other Comprehensive Loss	Company Shares Held by SERP	Retained Earnings	Noncontrolling Interest
Balance (in shares) at Dec. 31, 2020		22,611,976
Balance at Dec. 31, 2020	$ 641.5	$ 4.5	$ 127.8	$ (33.5)	$ (1.5)	$ 543.7	$ 0.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	8.5					8.5	0.0
Other comprehensive income (loss)	(0.8)			(0.7)			(0.1)
Dividends	(2.5)					(2.5)
Share-based compensation	1.4		1.4
Issuance of common stock under incentive plan (in shares)		103,541
Withholding tax paid upon equity award vesting	(3.0)		(3.0)
Deferred compensation programs' transactions, net	0.2		0.1		0.1
Balance (in shares) at Mar. 31, 2021		22,715,517
Balance at Mar. 31, 2021	645.3	$ 4.5	126.3	(34.2)	(1.4)	549.7	0.4
Balance (in shares) at Dec. 31, 2020		22,611,976
Balance at Dec. 31, 2020	641.5	$ 4.5	127.8	(33.5)	(1.5)	543.7	0.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	25.8
Other comprehensive income (loss)	(1.2)
Balance (in shares) at Sep. 30, 2021		22,762,989
Balance at Sep. 30, 2021	660.4	$ 4.6	129.2	(34.6)	(1.2)	562.0	0.4
Balance (in shares) at Mar. 31, 2021		22,715,517
Balance at Mar. 31, 2021	645.3	$ 4.5	126.3	(34.2)	(1.4)	549.7	0.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	8.3					8.3
Other comprehensive income (loss)	4.1			4.0			0.1
Dividends	(2.5)					(2.5)
Share-based compensation	1.5		1.5
Issuance of common stock under incentive plan (in shares)		41,809
Issuance of common stock under incentive plan	0.1	$ 0.1
Withholding tax paid upon equity award vesting	(0.2)		(0.2)
Deferred compensation programs' transactions, net	0.3		0.2		0.1
Balance (in shares) at Jun. 30, 2021		22,757,326
Balance at Jun. 30, 2021	656.9	$ 4.6	127.8	(30.2)	(1.3)	555.5	0.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	9.0					9.0
Other comprehensive income (loss)	(4.5)			(4.4)			(0.1)
Dividends	(2.5)					(2.5)
Share-based compensation	1.7		1.7
Issuance of common stock under incentive plan (in shares)		5,663
Issuance of common stock under incentive plan	(0.1)		(0.1)
Withholding tax paid upon equity award vesting	(0.2)		(0.2)
Deferred compensation programs' transactions, net	0.1				0.1
Balance (in shares) at Sep. 30, 2021		22,762,989
Balance at Sep. 30, 2021	$ 660.4	$ 4.6	129.2	(34.6)	(1.2)	562.0	0.4
Balance (in shares) at Dec. 31, 2021	22,767,052	22,767,052
Balance at Dec. 31, 2021	$ 651.3	$ 4.5	130.6	(32.4)	(1.2)	549.3	0.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	4.1					4.1
Other comprehensive income (loss)	4.2			4.1			0.1
Dividends	(2.8)					(2.8)
Share-based compensation	1.8		1.8
Issuance of common stock under incentive plan (in shares)		69,995
Issuance of common stock under incentive plan	0.1	$ 0.1
Withholding tax paid upon equity award vesting	(1.3)		(1.3)
Balance (in shares) at Mar. 31, 2022		22,837,047
Balance at Mar. 31, 2022	$ 657.4	$ 4.6	131.1	(28.3)	(1.2)	550.6	0.6
Balance (in shares) at Dec. 31, 2021	22,767,052	22,767,052
Balance at Dec. 31, 2021	$ 651.3	$ 4.5	130.6	(32.4)	(1.2)	549.3	0.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	0.7
Other comprehensive income (loss)	$ (13.5)
Balance (in shares) at Sep. 30, 2022	22,710,427	22,710,427
Balance at Sep. 30, 2022	$ 628.1	$ 4.5	134.4	(46.0)	(1.1)	535.9	0.4
Balance (in shares) at Mar. 31, 2022		22,837,047
Balance at Mar. 31, 2022	657.4	$ 4.6	131.1	(28.3)	(1.2)	550.6	0.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(3.9)					(3.9)
Other comprehensive income (loss)	(8.5)			(8.5)
Dividends	(2.6)		0.1			(2.7)
Share-based compensation	1.6		1.6
Issuance of common stock under incentive plan (in shares)		27,482
Withholding tax paid upon equity award vesting	(0.3)		(0.3)
Deferred compensation programs' transactions, net	0.2		0.1		0.1
Balance (in shares) at Jun. 30, 2022		22,864,529
Balance at Jun. 30, 2022	643.9	$ 4.6	132.6	(36.8)	(1.1)	544.0	0.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	0.5					0.7	(0.2)
Other comprehensive income (loss)	(9.2)			(9.2)
Dividends	(2.8)					(2.8)
Share-based compensation	2.0		2.0
Issuance of common stock under incentive plan (in shares)		6,343
Issuance of common stock under incentive plan	0.0
Withholding tax paid upon equity award vesting	(0.2)		(0.2)
Share repurchases (in shares)		(160,445)
Share repurchases	$ (6.1)	$ (0.1)				(6.0)
Balance (in shares) at Sep. 30, 2022	22,710,427	22,710,427
Balance at Sep. 30, 2022	$ 628.1	$ 4.5	$ 134.4	$ (46.0)	$ (1.1)	$ 535.9	$ 0.4