Fair Value Measurements - Summary of Company's Investments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Schedule Of Available For Sale Securities [Line Items]
Investments, Amortized cost	$ 169,160	$ 166,143
Investments, Gross unrealized gains	1,588	1,074
Investments, Gross unrealized losses	(71)	(1,957)
Investments, at fair value	170,677	165,260
Corporate Debt [Member]
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	58,110	55,447
Securities available-for-sale, Gross unrealized gains	333	88
Securities available-for-sale, Gross unrealized losses	(3)	(427)
Securities available-for-sale, Fair value	58,440	55,108
U.S. Treasuries [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	100,487	100,484
Trading securities, Gross unrealized gains	329	86
Trading securities, Gross unrealized losses	(44)	(1,525)
Trading securities, Fair value	100,772	99,045
Mutual Funds Held In Rabbi Trust [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	10,563	10,212
Trading securities, Gross unrealized gains	926	900
Trading securities, Gross unrealized losses	(24)	(5)
Trading securities, Fair value	$ 11,465	$ 11,107