Debt - Summary of Interest Expense on Convertible Debt (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Schedule Of Interest Expenses [Line Items]
Total interest expense on convertible debt	$ 3,859	$ 3,817	$ 7,665	$ 7,621
Convertible Senior Notes
Schedule Of Interest Expenses [Line Items]
Coupon interest expense	2,617	2,616	5,233	5,232
Accretion of discount on convertible notes	837	834	1,673	1,668
Amortization of debt issuance costs	148	148	297	296
Total interest expense on convertible debt	$ 3,602	$ 3,598	$ 7,203	$ 7,196