Stock-Based Compensation - Additional Information (Detail)		1 Months Ended					3 Months Ended		15 Months Ended	27 Months Ended	39 Months Ended	48 Months Ended
	Jan. 04, 2024 Milestone shares	Jan. 31, 2024 Milestone shares	Jan. 31, 2023 Milestone shares	Jan. 31, 2022 Milestone shares	Jan. 31, 2021 Milestone shares	Jan. 31, 2020 Milestone shares	Mar. 31, 2024 USD ($) Milestone Period $ / shares shares	Mar. 31, 2023 USD ($)	Mar. 31, 2024 USD ($) Milestone shares	Mar. 31, 2024 USD ($) Milestone shares	Mar. 31, 2024 USD ($) Milestone shares	Jan. 04, 2024 USD ($) Milestone	Jan. 01, 2024 shares	Dec. 31, 2023 shares	Apr. 28, 2015 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cancelled, Shares Subject to Stock Options							0
Stock-based compensation | $							$ 7,981,000	$ 3,569,000
Forfeited awards							0
Cash proceeds from exercises of stock options | $							$ 4,361,000	$ 3,966,000
Weighted average fair value of stock options granted to employees | $ / shares							$ 13.44
Excess tax benefit from stock-based awards | $							$ 0
Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Milestone achievement period		4 years	4 years	4 years	4 years	4 years	4 years
Issuance of performance based award		677,500	920,000	657,000	205,500	244,000
Percentage of shares vested upon achievement of certain milestone						100.00%
Number of milestones to be achieve | Milestone						3
Performance Based Restricted Stock Units [Member] | PRSU Awards Vesting Upon the Achievement of Three of the Milestones Over a Four Year Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vested upon achievement of certain milestone		100.00%	100.00%	100.00%	100.00%
Number of milestones to be achieve | Milestone		3	3	3	3
Performance Based Restricted Stock Units [Member] | PRSU Awards Vesting Upon the Achievement of All Four of the Milestones Over a Four Year Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vested upon achievement of certain milestone		133.30%	133.30%	133.30%	133.30%
Number of milestones to be achieve | Milestone		4	4	4	4
Performance Based Restricted Stock Units [Member] | January 2020 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation | $												$ 1,200,000
Forfeited awards	10,500
Cancelled awards	77,834
Number of milestones achieved | Milestone	2											2
Performance Based Restricted Stock Units [Member] | January 2021 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of milestones deemed as achievable | Milestone							1		1	1	1
Stock-based compensation | $							$ (263,000)				$ 700,000
Number of milestones achieved | Milestone							1		1	1	1
Forfeiture of performance based award							10,000
Performance Based Restricted Stock Units [Member] | January 2022 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of milestones deemed as achievable | Milestone							1		1	1	1
Stock-based compensation | $							$ (709,000)			$ 3,200,000
Number of milestones achieved | Milestone							3		3	3	3
Forfeiture of performance based award							0
Performance Based Restricted Stock Units [Member] | January 2023 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of milestones deemed as achievable | Milestone							2		2	2	2
Stock-based compensation | $							$ 2,100,000		$ 7,100,000
Number of milestones achieved | Milestone							2		2	2	2
Forfeiture of performance based award							0
Performance Based Restricted Stock Units [Member] | January 2024 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation | $							$ 2,800,000
Forfeiture of performance based award							0
2014 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance, description							Initially, a total of 1,527,770 shares of the Company’s common stock were reserved for issuance pursuant to the 2014 Plan. The 2014 Plan provides that the number of shares available for issuance under the 2014 Plan would, unless otherwise determined by the Company’s Board of Directors or the Compensation Committee, be automatically increased on January 1 of each year commencing on January 1, 2016 and ended on (and including) January 1, 2024, in an amount equal to 3.5% of the total number of shares of the Company’s common stock outstanding on December 31 of the preceding calendar year.
Percentage of common stock outstanding to increase shares reserved for issuance							3.50%
Common stock reserved for future issuance														5,939,750	1,527,770
Additional number of shares of common stock reserved for issuance													3,503,981
Number of common shares available for grant							7,955,542		7,955,542	7,955,542	7,955,542
2014 ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance, description							ESPP. Initially, a total of 458,331 shares of the Company’s common stock were reserved for issuance pursuant to the ESPP. The ESPP provides that the number of shares available for issuance under the ESPP would, unless otherwise determined by the Company’s Board of Directors or the Compensation Committee, be automatically increased on January 1 of each year commencing on January 1, 2016 and ended on (and including) January 1, 2024, in an amount equal to 1% of the total number of shares of the Company’s common stock outstanding on December 31 of the preceding calendar year.
Percentage of common stock outstanding to increase shares reserved for issuance							1.00%
Common stock reserved for future issuance														4,251,444	458,331
Additional number of shares of common stock reserved for issuance													1,001,137
Number of common shares available for grant							5,252,581		5,252,581	5,252,581	5,252,581
Duration of employee stock purchase plan as determined by the compensation committee							24 years
Duration for offering period, employee stock purchase plan							6 months
Employee stock purchase plan, number of purchase periods | Period							4
Maximum duration for purchase under employee stock purchase plan							1 year
Maximum duration of employee stock purchase plan							27 months
Percentage of purchase of common stock							85.00%
Percentage of common stock on the date of purchase							85.00%