Fair Value Measurements - Summary of Company's Investments (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2025	Dec. 31, 2024
Schedule Of Available For Sale Securities [Line Items]
Investments, Amortized cost	$ 167,892	$ 166,143
Investments, Gross unrealized gains	1,723	1,074
Investments, Gross unrealized losses	(266)	(1,957)
Investments, Fair value	169,349	165,260
Corporate Debt [Member]
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	57,572	55,447
Securities available-for-sale, Gross unrealized gains	236	88
Securities available-for-sale, Gross unrealized losses	(73)	(427)
Securities available-for-sale, Fair value	57,735	55,108
U.S. Treasuries [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	100,503	100,484
Trading securities, Gross unrealized gains	11	86
Trading securities, Gross unrealized losses	(189)	(1,525)
Trading securities, Fair value	100,325	99,045
Mutual Funds Held In Rabbi Trust [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	9,817	10,212
Trading securities, Gross unrealized gains	1,476	900
Trading securities, Gross unrealized losses	(4)	(5)
Trading securities, Fair value	$ 11,289	$ 11,107

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