Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Consolidated Statements of Operations
Net sales	$ 512,539	$ 371,197	$ 961,909	$ 783,931
Cost of goods sold	378,438	279,330	722,892	603,985
Gross profit	134,101	91,867	239,017	179,946
Operating expenses:
Selling, general and administrative expenses	44,347	39,856	84,320	78,153
Amortization expense	4,739	4,601	9,462	9,092
Operating income	85,015	47,410	145,235	92,701
Other income and expenses:
Interest expense, net	24,849	23,179	50,888	46,253
Other income	(701)	(525)	(1,154)	(783)
Income before income tax expense	60,867	24,756	95,501	47,231
Income tax expense	15,956	6,505	22,498	12,189
Net income	$ 44,911	$ 18,251	$ 73,003	$ 35,042
Weighted average shares outstanding:
Basic (in shares)	64,129,778	65,341,356	64,088,464	65,463,964
Diluted (in shares)	64,409,813	65,390,515	64,247,019	65,503,835
Earnings per share:
Basic (in dollars per share)	$ 0.70	$ 0.28	$ 1.14	$ 0.54
Diluted (in dollars per share)	0.70	0.28	1.14	0.53
Cash dividends declared per share (in dollars per share)	$ 0.475	$ 0.475	$ 0.950	$ 0.950