Condensed Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained (Deficit) Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance (in shares) at Dec. 31, 2020		37,552
Beginning Balance at Dec. 31, 2020	$ 106.8	$ 0.4	$ 193.5	$ (24.0)	$ (66.5)	$ 3.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	0.4		0.4
Issuance of restricted stock (in shares)		65
Issuance of restricted stock	0.0		(1.1)	1.1
Stock withheld for employee taxes (in shares)		(47)
Stock withheld for employee taxes	(1.9)			(1.9)
Proceeds from issuance of common stock (in shares)		119
Proceeds from issuance of common stock	2.3		(0.2)	2.5
Issuance of shares under employee stock purchase plan (in shares)		29
Issuance of shares under employee stock purchase plan	0.5		0.5
Dividends	(6.0)				(6.0)
Change in cumulative translation adjustment	0.1					0.1
Net income	15.2				15.2
Ending Balance (in shares) at Mar. 31, 2021		37,718
Ending Balance at Mar. 31, 2021	117.4	$ 0.4	193.1	(22.3)	(57.3)	3.5
Beginning Balance (in shares) at Dec. 31, 2021		37,854
Beginning Balance at Dec. 31, 2021	153.6	$ 0.4	195.8	(20.4)	(25.5)	3.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	1.0		1.0
Issuance of restricted stock (in shares)		22
Issuance of restricted stock	0.0		(0.4)	0.4
Stock withheld for employee taxes (in shares)		(11)
Stock withheld for employee taxes	(0.4)			(0.4)
Proceeds from issuance of common stock (in shares)		29
Proceeds from issuance of common stock	0.7		0.1	0.6
Issuance of shares under employee stock purchase plan (in shares)		23
Issuance of shares under employee stock purchase plan	0.6		0.6
Dividends	(6.8)				(6.8)
Change in cumulative translation adjustment	0.1					0.1
Net income	22.0				22.0
Ending Balance (in shares) at Mar. 31, 2022		37,917
Ending Balance at Mar. 31, 2022	$ 170.8	$ 0.4	$ 197.1	$ (19.8)	$ (10.3)	$ 3.4