Fair Value Measurements - Summary of Company's Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Schedule Of Available For Sale Securities [Line Items]
Investments, Amortized cost	$ 36,864	$ 34,935
Investments, Gross unrealized gains		1,254
Investments, Gross unrealized losses	(2,567)	(111)
Investments, Fair value	34,297	36,078
U.S. Treasuries [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	24,883	24,994
Trading securities, Gross unrealized losses	(445)	(111)
Trading securities, Fair value	24,438	24,883
Mutual Funds Held In Rabbi Trust [Member]
Schedule Of Available For Sale Securities [Line Items]
Trading securities, Amortized cost	11,981	9,941
Trading securities, Gross unrealized gains		1,254
Trading securities, Gross unrealized losses	(2,122)
Trading securities, Fair value	$ 9,859	$ 11,195

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Marketable securities amortized cost.

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Trading securities accumulated gross unrealized gain before tax.

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Amount of investment in marketable security.

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Amortized cost of investments in debt securities classified as trading.

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