Fair Value Measurements - Summary of Company's Investments (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Schedule Of Available For Sale Securities [Line Items]
Investments, Amortized cost	$ 134,903	$ 86,417
Investments, Gross unrealized gains	673
Investments, Gross unrealized losses	(715)	(2,625)
Investments, at fair value	134,861	83,792
Corporate Debt [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	24,705
Trading securities, Gross unrealized gains	55
Trading securities, Gross unrealized losses	(66)
Trading securities, Fair value	24,694
Investments, at fair value	24,694
U.S. Treasuries [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	99,236	74,943
Trading securities, Gross unrealized gains	446
Trading securities, Gross unrealized losses		(534)
Trading securities, Fair value	99,682	74,409
Investments, at fair value	99,682	74,409
Mutual Funds Held In Rabbi Trust [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	10,962	11,474
Trading securities, Gross unrealized gains	172
Trading securities, Gross unrealized losses	(649)	(2,091)
Trading securities, Fair value	10,485	9,383
Investments, at fair value	$ 10,485	$ 9,383

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Marketable securities amortized cost.

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Amount of investment in marketable security.

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