Fair Value Measurements - Summary of Company's Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Schedule Of Available For Sale Securities [Line Items]
Investments, Amortized cost	$ 110,927	$ 86,417
Investments, Gross unrealized gains	109
Investments, Gross unrealized losses	(1,999)	(2,625)
Investments, Fair value	109,037	83,792
U.S. Treasuries [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	74,949	74,943
Trading securities, Gross unrealized losses	(1,011)	(534)
Trading securities, Fair value	73,938	74,409
Investments, Fair value	73,938	74,409
Mutual Funds Held In Rabbi Trust [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	11,062	11,474
Trading securities, Gross unrealized gains	102
Trading securities, Gross unrealized losses	(758)	(2,091)
Trading securities, Fair value	10,406	9,383
Investments, Fair value	10,406	$ 9,383
Corporate Debt [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	24,916
Trading securities, Gross unrealized gains	7
Trading securities, Gross unrealized losses	(230)
Trading securities, Fair value	24,693
Investments, Fair value	$ 24,693

Marketable securities accumulated gross unrealized gain before tax.

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Marketable securities amortized cost.

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Amount of investment in marketable security.

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