Earnings Per Common Share ("EPS") - Components of Basic and Diluted EPS Computations (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
EPS — basic and diluted:
Net loss (numerator)	$ (80,926)	$ (57,240)
Weighted average common shares (denominator)	249,244	222,585
Net loss per share	$ (0.32)	$ (0.26)