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BANK BORROWINGS AND TRADE CREDIT ARRANGEMENTS (Detail)
$ in Thousands
6 Months Ended
Jun. 30, 2017
USD ($)
Institution
Dec. 31, 2016
USD ($)
Institution
Subordinated Borrowing    
Line of credit, borrowing capacity $ 50,000  
Credit facility, expiration date Feb. 10, 2022  
Line of credit, maximum borrowing capacity $ 80,000  
Debt instrument, description of variable rate basis one-month LIBOR  
Debt ratio 2.0  
Line of credit, outstanding borrowing $ 0 $ 0
Line of credit, available for borrowing $ 50,000 $ 50,000
Trade credit agreements    
Number of financial institutions facilitating purchase of inventory | Institution 2 2
Prime Rate    
Subordinated Borrowing    
Debt instrument, interest rate 4.25%  
One-month LIBOR rate    
Subordinated Borrowing    
Debt instrument, interest rate 1.22%  
Accounts Payable    
Trade credit agreements    
Amount owed to financial institution for inventory financing $ 27,916 $ 33,061
Maximum    
Trade credit agreements    
Amount owed to financial institution for inventory financing $ 75,000 $ 75,000