Quarterly report pursuant to Section 13 or 15(d)

Line of Credit, Short-Term and Long-Term Borrowings - Long-Term Borrowings (Detail)

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Line of Credit, Short-Term and Long-Term Borrowings - Long-Term Borrowings (Detail) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Long-term borrowings $ 104,010 $ 89,785
Less: current installments 3,986 1,666
Total long-term borrowings 100,024 88,119
Loan Payable to Bank [Member]    
Debt Instrument [Line Items]    
Long-term borrowings 33,760 18,626
Modification Loan [Member]    
Debt Instrument [Line Items]    
Long-term borrowings 64,400  
Less: current installments 1,500  
Total long-term borrowings 62,900  
Modification Loan [Member] | Construction Loan Agreement [Member] | Joint Venture with HF Logistics [Member]    
Debt Instrument [Line Items]    
Long-term borrowings 64,420 65,148
Note payable to Luen Thai Enterprise, LTD [Member]    
Debt Instrument [Line Items]    
Long-term borrowings 5,800 5,800
Notes payable to TCF Finance [Member] | Equipment Notes [Member]    
Debt Instrument [Line Items]    
Long-term borrowings $ 30 $ 211