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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2015 | Jan. 01, 2024 | Dec. 31, 2023 | Nov. 20, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock, par value | $ 0.001 |  |  |  | $ 0.001 |
Common stock, shares outstanding | 54,667,079 |  |  |  | 54,480,704 |
Common stock, shares issued | 54,667,079 |  |  |  | 54,480,704 |
Number of options outstanding | 8,816,532 | 8,992,759 |  |  | 7,897,647 |
Options granted | 1,875,125 |  |  |  |  |
Employee Stock Option [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Compensation expense | $ 1,733 | $ 2,721 |  |  |  |
Options Performance Shares [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Compensation expense | 0 |  |  |  |  |
Restricted Stock Units [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Compensation expense | $ 1,612 | $ 632 |  |  |  |
Employees [Member] | Restricted Stock Units [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Restricted stock units, grant date fair value |  | $ 10.06 |  |  |  |
Employees And Non-Employee Members Of Board Of Directors [Member] | Share-based Payment Arrangement, Employee [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Fair value of options granted | $ 0.76 | $ 7.08 |  |  |  |
Non-employee Consultants [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Options granted | 0 | 0 |  |  |  |
2014 Equity Incentive Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, number of shares authorized |  |  |  | 13,837,444 | 12,203,023 |
Number of stock options that may be granted after the tenth anniversary of the 2014 Plan | 0 |  |  |  |  |
Annual increases in number of shares reserved for issuance as a percentage of shares of capital stock outstanding through January 1, 2024 |  |  | 3.00% |  |  |
Options granted | 1,875,125 | 1,449,154 |  |  |  |
2014 Equity Incentive Plan [Member] | Restricted Stock Units [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Awarded | 0 | 407,000 |  |  |  |
2014 Equity Incentive Plan [Member] | Maximum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Term of awards granted | 10 years |  |  |  |  |
2014 Equity Incentive Plan [Member] | Maximum [Member] | Incentive Stock Options [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, number of shares authorized |  |  | 30,000,000 |  |  |
2014 Equity Incentive Plan [Member] | Director [Member] | Incentive Stock Options [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period of awards granted | 3 years |  |  |  |  |
2014 Equity Incentive Plan [Member] | Employee And Nonemployee Consultants [Member] | Share-Based Compensation Award, Tranche One [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of vested shares on first anniversary of grant date | 25.00% |  |  |  |  |
2014 Equity Incentive Plan [Member] | Employee And Nonemployee Consultants [Member] | Share-based Compensation Award, Tranche Two [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period of awards granted | 36 months |  |  |  |  |
2014 Equity Incentive Plan [Member] | Employee And Nonemployee Consultants [Member] | Share Based Compensation Subsequent Awards [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period of awards granted | 4 years |  |  |  |  |
2019 Inducement Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock, par value |  |  |  |  |  | $ 0.001
Awarded | 0 | 0 |  |  |  |
2019 Inducement Plan [Member] | Restricted Stock Units [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Awarded | 0 | 0 |  |  |  |
2019 Inducement Plan [Member] | Share-Based Compensation Award, Tranche One [Member] | Share-based Payment Arrangement, Employee [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of vested shares on first anniversary of grant date | 25.00% |  |  |  |  |
2019 Inducement Plan [Member] | Share-based Compensation Award, Tranche Two [Member] | Share-based Payment Arrangement, Employee [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period of awards granted | 36 months |  |  |  |  |
2019 Inducement Plan [Member] | Share Based Compensation Subsequent Awards [Member] | Share-based Payment Arrangement, Employee [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period of awards granted | 4 years |  |  |  |  |
2019 Inducement Plan [Member] | Maximum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, number of shares authorized |  |  |  |  |  | 300,000

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