Net Loss Per Common Share - Computation of Basic and Diluted Net Loss per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	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
Earnings Per Share [Abstract]
Net loss	$ (1,467)	$ (5,510)	$ (15,800)	$ (30,677)	$ (39,797)	$ (1,797)	$ (22,777)	$ (72,271)
Preferred stock dividends and accretion	(14,976)			0			(43,658)	0
Net loss attributable to common stockholders	$ (16,443)			$ (30,677)			$ (66,435)	$ (72,271)
Basic weighted-average shares outstanding	41,984			37,052			41,950	36,846
Effect of dilutive awards	0			0			0	0
Diluted weighted-average shares outstanding	41,984			37,052			41,950	36,846
Basic net income (loss) per common share	$ (0.39)			$ (0.83)			$ (1.58)	$ (1.96)
Diluted net income (loss) per common share	$ (0.39)			$ (0.83)			$ (1.58)	$ (1.96)
Potentially dilutive shares excluded from the calculation due to net losses in the period	893			1,312			568	1,693
Anti dilutive share-based compensation awards that would be excluded from the calculation if income was reported in the period	111			13			196	0