Consolidated Statement of Income Statement - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net sales	$ 221,290	$ 217,100
Cost of sales	(161,470)	(156,720)
Gross profit	59,820	60,380
Selling, general and administrative expenses	(33,970)	(25,170)
Operating profit	25,850	35,210
Other expense, net:
Interest expense	(3,440)	(3,700)
Other expense, net	(680)	(560)
Other expense, net	(4,120)	(4,260)
Income before income tax expense	21,730	30,950
Income tax expense	(2,640)	(6,630)
Net income	$ 19,090	$ 24,320
Basic earnings per share
Net income per share	$ 0.42	$ 0.53
Weighted average common shares—basic	45,578,815	45,779,966
Diluted earnings per share
Net income per share	$ 0.42	$ 0.53
Weighted average common shares—diluted	45,992,182	46,229,337