Stock-Based Compensation - Summary of Outstanding Stock Options and Related Activity (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period (in shares)	139
Exercised (in shares)	0
Forfeited (in shares)	(54)
Expired (in shares)	(5)
Outstanding at end of period (in shares)	80	139
Vested and expected to vest (in shares)	80
Exercisable (in shares)	75
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at beginning of period (in dollars per share)	$ 3.75
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	4.26
Expired (in dollars per share)	5.24
Outstanding at end of period (in dollars per share)	3.30	$ 3.75
Vested and expected to vest (in dollars per share)	3.30
Exercisable (in dollars per share)	$ 3.21
Additional disclosures
Wtd. Avg. Remaining Contractual Life (Yrs), Outstanding	3 years 10 months 6 days	5 years 1 month 6 days
Wtd. Avg. Remaining Contractual Life (Yrs), Vested and expected to vest	3 years 9 months 29 days
Wtd. Avg. Remaining Contractual Life (Yrs), Exercisable	3 years 7 months 20 days
Aggregate Intrinsic Value, Exercised	$ 0
Aggregate Intrinsic Value, Forfeited	7
Aggregate Intrinsic Value, Expired	0
Aggregate Intrinsic Value, Outstanding	0	$ 6
Aggregate Intrinsic Value, Vested and expected to vest	0
Aggregate Intrinsic Value, Exercisable	$ 0