Cash Equivalents and Investments - Schedule of Investments (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Available-for-sale [Line Items]
Available-for-sale Securities	$ 107,473	$ 104,485
Corporate securities
Available-for-sale [Line Items]
Available-for-sale Securities	63,244	57,878
U.S. Treasury securities [Member]
Available-for-sale [Line Items]
Available-for-sale Securities	20,919	22,674
Municipal Debt Securities [Member]
Available-for-sale [Line Items]
Available-for-sale Securities	13,647	14,649
Federal Home Loan Securities [Member]
Available-for-sale [Line Items]
Available-for-sale Securities	6,485	5,670
Certificates of Deposit [Member]
Available-for-sale [Line Items]
Available-for-sale Securities	$ 3,178	$ 3,614