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Fair Value Measurements - Assets and Liabilities Carried at Fair Value Measured on Recurring Basis (Detail) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Assets:    
Equity securities $ 1,579 $ 6,065
Liabilities:    
Derivative financial instruments 5 101
Fair Value Measurements, Level 1 | Other assets    
Assets:    
Equity securities 1,579 6,065
Fair Value Measurements, Level 2 | Accrued expenses and other current liabilities    
Liabilities:    
Derivative financial instruments $ 5 $ 101