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Stockholders' Equity - Summary of Company's Restricted Share Activity (Detail) - Restricted stock units
shares in Thousands
12 Months Ended
Dec. 31, 2021
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Restricted shares, beginning balance (in shares) | shares 870
Restricted shares, granted (in shares) | shares 176
Restricted shares, released (in shares) | shares (184)
Restricted shares, canceled/forfeited (in shares) | shares (15)
Restricted shares, ending balance (in shares) | shares 847
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Weighted average grant date fair value, beginning balance (in dollars per share) | $ / shares $ 2.06
Weighted average grant date fair value, granted (in dollars per share) | $ / shares 3.25
Weighted average grant date fair value, released (in dollars per share) | $ / shares 2.14
Weighted average grant date fair value, canceled/forfeited (in dollars per share) | $ / shares 2.29
Weighted average grant date fair value, ending balance (in dollars per share) | $ / shares $ 2.28