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Summary of Company's Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total debt	$ 80,624	$ 139,890
Current maturities	(2,500)	(3,413)
Long-term debt, less current maturities	$ 78,124	$ 136,477
U.S. Revolving Note (U.S. Dollar Denominations)
Debt Instrument [Line Items]
Interest Rate	3.05%	4.02%
Total debt	$ 50,000	$ 122,000
U.S. Revolving Note (Euro Denominations)
Debt Instrument [Line Items]
Interest Rate	1.25%	1.50%
Total debt	$ 21,874	$ 5,727
DEG Vietnam Loan
Debt Instrument [Line Items]
Interest Rate	5.21%	5.21%
Total debt	$ 8,750	$ 11,250
DEG China Loan
Debt Instrument [Line Items]
Interest Rate		4.25%
Total debt		$ 913

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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