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Marketable Securities - Noncurrent - Summary of Marketable Securities Noncurrent (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Investments Debt And Equity Securities [Abstract]    
Debt securities, classified as available-for-sale $ 8,132 $ 10,000
Equity securities 2,190  
Marketable securities – noncurrent $ 10,322 $ 10,000