REVENUE, Impact of Adoption on Consolidated Statement of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Statement of Operations [Abstract]
Net sales	$ 548,184	$ 491,611
Cost of sales	438,414	389,262
Operating income	29,611	17,386
Provision for income taxes	2,907	21,540
Net earnings	20,709	$ (11,897)
Balances Without Adoption of ASC 606 [Member] | ASU 2014-09 [Member]
Statement of Operations [Abstract]
Net sales	546,922
Cost of sales	437,641
Operating income	29,122
Provision for income taxes	2,930
Net earnings	20,197
Effect of Change Higher/(Lower) [Member] | ASU 2014-09 [Member]
Statement of Operations [Abstract]
Net sales	1,262
Cost of sales	773
Operating income	489
Provision for income taxes	(23)
Net earnings	$ 512