Net Income (Loss) Per Share - Schedule of Calculation of Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Numerator:
Net income (loss)	$ 2.5	$ (13.8)	$ 8.1	$ (2.3)	$ (22.4)	$ 4.5	$ (3.2)	$ (20.2)
Denominator – Weighted-average common shares outstanding (in thousands):
Basic	15,926			15,852			15,897	15,831
Add: dilutive effect of non-vested common shares, restricted stock units and performance shares	103
Diluted	16,029			15,852			15,897	15,831
Net income (loss) per common share, Basic:	$ 0.16			$ (0.14)			$ (0.20)	$ (1.28)
Net income (loss) per common share, Diluted:	$ 0.16			$ (0.14)			$ (0.20)	$ (1.28)