Cash Equivalents and Investments - Schedule of Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Available-for-sale [Line Items]
Available-for-sale Securities	$ 115,319	$ 124,482
U.S. Treasury securities [Member]
Available-for-sale [Line Items]
Available-for-sale Securities	43,174	42,261
Corporate Debt Securities [Member]
Available-for-sale [Line Items]
Available-for-sale Securities	41,586	53,260
Municipal Debt Securities [Member]
Available-for-sale [Line Items]
Available-for-sale Securities	26,968	21,373
Federal Home Loan Securities [Member]
Available-for-sale [Line Items]
Available-for-sale Securities	2,837	5,825
Certificates of Deposit [Member]
Available-for-sale [Line Items]
Available-for-sale Securities	$ 754	$ 1,763