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Principal Maturities of Debt (Detail) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Debt maturing in remainder of 2020 $ 1,250  
Debt maturing in 2021 2,500  
Debt maturing in 2022 2,500  
Debt maturing in 2023 1,250  
Debt maturing in 2024 188,061  
Total debt 195,561 $ 80,624
US and Euro Denominated Revolving Note    
Debt Instrument [Line Items]    
Debt maturing in 2024 188,061  
Total debt 188,061  
DEG Vietnam Loan    
Debt Instrument [Line Items]    
Debt maturing in remainder of 2020 1,250  
Debt maturing in 2021 2,500  
Debt maturing in 2022 2,500  
Debt maturing in 2023 1,250  
Total debt $ 7,500 $ 8,750