Income Taxes - Income Tax Expense (Benefit) Differed from Amounts Computed by Applying Statutory Federal Income Tax Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax provision at federal statutory rate	$ (24,168)	$ (23,063)	$ (8,490)
Tax on repatriated foreign earnings and other nondeductible items	580	348	403
Section 162(m) limitations	5,824	5,044	1,438
Change in tax credits	(2,514)	3,123	(3,738)
Change in valuation allowance	36,550	21,766	17,842
Changes in federal and state tax rates	(110)	586	(4,058)
Stock option exercise windfall	(9,761)	(7,683)	(1,763)
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount	(2,823)	2,461	(485)
State and foreign tax, and other	(3,411)	(2,329)	(880)
Total provision for income taxes	$ 167	$ 253	$ 269