Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net Sales	$ 249,439	$ 227,417
Cost of sales	193,052	183,517
Gross profit	56,387	43,900
Selling, general, and administrative expense	41,197	33,334
Income from operations	15,190	10,566
Interest (income) expense	(47)	2,061
Other expense	192	589
Income before taxes	15,045	7,916
Provision for income taxes	2,986	1,571
Net income	$ 12,059	$ 6,345
Net earnings per share:
Basic (in USD per share)	$ 0.37	$ 0.20
Diluted (in USD per share)	$ 0.37	$ 0.19
Weighted average shares outstanding:
Basic (in shares)	32,586	32,279
Diluted (in shares)	32,883	32,617