ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts Payable and Accrued Liabilities, Current [Abstract]
Salaries, wages, and commissions	$ 29,600	$ 28,400
Product warranty costs	9,500	8,200
Insurance	1,900	2,000
Employee benefits	9,100	7,900
Other	13,800	10,300
Accrued expenses and other current liabilities	$ 63,887	$ 56,845