Net Income Per Common Share - Reconciliation of Numerator and Denominator Used in Calculation of Basic and Diluted Net Income Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Numerator:
Net Income (Loss)		$ 2,675	$ 1,645	$ 12,415	$ 7,164	$ 4,320	$ 19,579
Basic:
Weighted average shares of common stock and vested, undelivered restricted stock units outstanding		28,055,201		29,573,994		28,406,230	29,641,113
Diluted:
Weighted average shares of common stock and vested, undelivered restricted stock units outstanding		28,055,201		29,573,994		28,406,230	29,641,113
Effect of potentially dilutive shares	[1]	4,106,877		4,691,438		210,038	4,702,789
Total weighted average shares of common stock and vested, undelivered restricted stock units outstanding and potentially dilutive shares		32,162,078		34,265,432		28,616,268	34,343,902
Basic:
Net income applicable to common stockholders		$ 2,675	$ 1,645	$ 12,415	$ 7,164	$ 4,320	$ 19,579
Weighted average shares of stock outstanding		28,055,201		29,573,994		28,406,230	29,641,113
Basic net income per common share		$ 0.1		$ 0.42		$ 0.15	$ 0.66
Diluted:
Net income applicable to common stockholders		$ 3,319		$ 13,055		$ 4,320	$ 20,859
Weighted average shares of stock outstanding		32,162,078		34,265,432		28,616,268	34,343,902
Diluted net income per common share	[1]	$ 0.1		$ 0.38		$ 0.15	$ 0.61

[1] In calculating diluted net income per share, 1.6 million shares and 1.5 million shares related to outstanding stock options and unvested, undelivered restricted stock units were excluded for the three and six months ended June 30, 2023, respectively; 84 thousand shares and 81 thousand shares related to outstanding stock options and unvested, undelivered restricted stock units were excluded for the three and six months ended June 30, 2022, respectively. Additionally, in calculating diluted net income per share, we excluded the impact of interest expense and amortization of note costs relating to the shares issuable upon conversion of our outstanding convertible notes from net income and included the weighted average of 3.9 million common shares under the if-converted method for each of the three and six months ended June 30, 2023 and for each of the three and six months ended June 30, 2022, respectively. The interest expense including amortization of note issuance costs, related to convertible notes was $0.6 million for each of the three months ended June 30, 2023 and June 30 2022, and $1.3 million for the six months ended June 30, 2022. For the six months ended June 30, 2023, the interest expense and amortization of note costs relating to the shares issuable upon conversion of our outstanding convertible notes were excluded from the calculation as they would have been anti-dilutive.