Condensed Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]
Beginning Balance at Dec. 31, 2020	$ 43.3	$ 0.3	$ 49.5	$ (6.5)
Net income	8.1			8.1
Payment for taxes related to share settlement of equity awards	(0.2)		(0.2)
Stock compensation expense	0.4		0.4
Ending Balance at Mar. 31, 2021	51.6	0.3	49.7	1.6
Beginning Balance at Dec. 31, 2021	93.1	0.3	50.8	42.0
Net income	15.5			15.5
Payment for taxes related to share settlement of equity awards	(0.4)		(0.4)
Stock compensation expense	0.2		0.2
Ending Balance at Mar. 31, 2022	$ 108.4	$ 0.3	$ 50.6	$ 57.5