CONSOLIDATED STATEMENTS OF TOTAL EQUITY - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings (Deficit)	Treasury Stock	Total Shareholders' Equity	Non- controlling Interest
Beginning balance (in shares) at Dec. 31, 2016		15,800
Beginning balance at Dec. 31, 2016	$ 188.8		$ 249.8	$ (39.3)	$ (21.7)	$ 188.8	$ 0.0
Increase (Decrease) in Stockholders' Equity
Stock-based compensation (in shares)		100
Stock-based compensation	5.2		8.3		(3.1)	5.2
Stock options exercised	0.1		0.1			0.1
Warrants exercised (in shares)		800
Warrants exercised	60.8		60.8			60.8
Adjustment for business combination	21.6						21.6
Net income	25.6			25.5		25.5	0.1
Ending balance (in shares) at Dec. 31, 2017		16,700
Ending balance at Dec. 31, 2017	302.1		319.0	(13.8)	(24.8)	280.4	21.7
Increase (Decrease) in Stockholders' Equity
Stock-based compensation (in shares)		100
Stock-based compensation	8.5		10.4		(1.9)	8.5
Stock options exercised	0.2		0.2			0.2
Adjustment for business combination	1.8						1.8
Share repurchase program (shares)		(200)
Share Repurchase Program	(6.7)				(6.7)	(6.7)
Net income	$ 31.3			30.0		30.0	1.3
Ending balance (in shares) at Dec. 31, 2018	16,631	16,600
Ending balance at Dec. 31, 2018	$ 337.2		329.6	16.2	(33.4)	312.4	24.8
Increase (Decrease) in Stockholders' Equity
Stock-based compensation (in shares)		100
Stock-based compensation	15.9		19.1		(3.2)	15.9
Stock options exercised	0.2		0.2			0.2
Net income	$ 16.3			14.9		14.9	1.4
Ending balance (in shares) at Dec. 31, 2019	16,696	16,700
Ending balance at Dec. 31, 2019	$ 369.6		$ 348.9	$ 31.1	$ (36.6)	$ 343.4	$ 26.2