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Assets and Liabilities Carried at Fair Value Measured on Recurring Basis (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Other assets    
Assets:    
Equity securities $ 6,065 $ 402
Private equities   2,500
Accrued expenses and other current liabilities    
Liabilities:    
Derivative financial instruments 101 1,007
Fair Value Measurements, Level 1 | Other assets    
Assets:    
Equity securities 6,065 402
Fair Value Measurements, Level 2 | Accrued expenses and other current liabilities    
Liabilities:    
Derivative financial instruments $ 101 1,007
Fair Value Measurements, Level 3 | Other assets    
Assets:    
Private equities   $ 2,500