Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales	$ 208,814	$ 143,876	$ 391,585	$ 259,664
Cost of sales	161,438	101,769	298,145	184,400
Gross profit	47,376	42,107	93,440	75,264
Selling, general and administrative expenses	26,933	16,895	49,989	31,591
Gain on disposal of assets	(10)	0	(12)	0
Income from operations	20,453	25,212	43,463	43,673
Interest expense, net	(550)	(4)	(740)	(1)
Other income, net	220	39	241	56
Income before taxes	20,123	25,247	42,964	43,728
Income tax provision	4,177	4,632	8,959	6,737
Net income	$ 15,946	$ 20,615	$ 34,005	$ 36,991
Earnings per share:
Basic (in dollars per share)	$ 0.30	$ 0.39	$ 0.64	$ 0.71
Diluted (in dollars per share)	$ 0.30	$ 0.38	$ 0.63	$ 0.69
Weighted average shares outstanding:
Basic (in shares)	53,095,286	52,432,822	52,992,439	52,389,989
Diluted (in shares)	53,661,876	53,603,932	53,944,616	53,736,134