CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Condensed Consolidated Statements of Income
Net sales	$ 652,752	$ 729,410	$ 1,914,603	$ 2,103,407
Cost of sales	544,922	610,547	1,604,656	1,768,210
Gross profit	107,830	118,863	309,947	335,197
Selling, general and administrative expenses	86,753	86,226	256,640	252,125
Restructuring and other charges			992	703
Income from operations	21,077	32,637	52,315	82,369
Interest (expense) income, net	(17)	62	80	444
Income before taxes	21,060	32,699	52,395	82,813
Income tax provision	(4,130)	(8,949)	(12,926)	(22,668)
Net income	$ 16,930	$ 23,750	$ 39,469	$ 60,145
Earnings per common share:
Basic	$ 0.65	$ 0.90	$ 1.51	$ 2.28
Diluted	$ 0.64	$ 0.90	$ 1.50	$ 2.27
Shares used in computation of earnings per common share:
Basic	26,130	26,323	26,158	26,339
Diluted	26,311	26,479	26,337	26,496