Fair Value Measurements - Summary of Company's Investments (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2025	Dec. 31, 2024
Schedule Of Available For Sale Securities [Line Items]
Investments, Amortized cost	$ 166,043	$ 166,143
Investments, Gross unrealized gains	784	1,074
Investments, Gross unrealized losses	(714)	(1,957)
Investments, Fair value	166,113	165,260
Corporate Debt [Member]
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	55,708	55,447
Securities available-for-sale, Gross unrealized gains	165	88
Securities available-for-sale, Gross unrealized losses	(196)	(427)
Securities available-for-sale, Fair value	55,677	55,108
U.S. Treasuries [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	100,468	100,484
Trading securities, Gross unrealized gains	131	86
Trading securities, Gross unrealized losses	(432)	(1,525)
Trading securities, Fair value	100,167	99,045
Mutual Funds Held In Rabbi Trust [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	9,867	10,212
Trading securities, Gross unrealized gains	488	900
Trading securities, Gross unrealized losses	(86)	(5)
Trading securities, Fair value	$ 10,269	$ 11,107

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