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Investments - Schedule of Investment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Investment [Line Items]    
Investments, Fair Value Disclosure $ 12,095 $ 10,776
Rabbi Trust Associated With Deferred Compensation [Member]    
Investment [Line Items]    
Investments, Fair Value Disclosure 12,069 10,755
Fair Value, Inputs, Level 1 [Member] | Investments in equity securities    
Investment [Line Items]    
Investments, Fair Value Disclosure $ 26 $ 21