Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Net sales:	$ 215,337	$ 206,605
Net Sales	215,337	206,605
Cost of sales	167,019	157,350
Gross profit	48,318	49,255
Selling, general, and administrative expense	34,475	39,576
Income from operations	13,843	9,679
Interest expense	3,269	3,576
Other (income) expense	(585)	54
Income before taxes	11,159	6,049
Provision for income taxes	2,807	2,053
Income from continuing operations	8,352	3,996
Discontinued operations:
Net income	$ 8,352	$ 3,996
Net earnings per share:
Net earnings per share - Basic (in USD per share)	$ 0.26	$ 0.13
Net earnings per share - Diluted
Net earnings per share - Diluted (in USD per share)	$ 0.26	$ 0.12
Weighted Average Number of Shares Outstanding
Weighted average basic shares outstanding (in shares)	31,786	31,688
Weighted average shares outstanding, diluted (in shares)	32,444	32,254