Earnings Per Share - Summary of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Basic net (loss) income per share:
Net (loss) income	$ (0.5)	$ 0.3	$ (21.9)	$ (20.8)
Basic weighted average common shares outstanding	32,363,376	29,221,460	31,484,906	25,689,145
Basic net (loss) income per share of common stock:	$ (0.02)	$ 0.01	$ (0.69)	$ (0.81)
Diluted net (loss) income per share:
Net (loss) income	$ (0.5)	$ 0.3	$ (21.9)	$ (20.8)
Basic weighted average common shares outstanding	32,363,376	29,221,460	31,484,906	25,689,145
Effect of dilutive securities:
Effect of dilutive non-vested restricted stock units		89,214
Diluted weighted average common shares outstanding	32,363,376	29,310,674	31,484,906	25,689,145
Diluted net (loss) income per share of common stock:	$ (0.02)	$ 0.01	$ (0.69)	$ (0.81)