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Revenue Recognition (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) day	Jan. 01, 2022 USD ($)	Jan. 02, 2021 USD ($)
Disaggregation of Revenue [Line Items]
Standard terms of payment, number of days | day	10
Net sales	$ 4,450,214	$ 4,277,178	$ 3,097,328
Warehouse and reload
Disaggregation of Revenue [Line Items]
Net sales	3,714,898	3,513,277	2,617,850
Direct
Disaggregation of Revenue [Line Items]
Net sales	815,864	832,871	525,650
Cash discounts and rebates
Disaggregation of Revenue [Line Items]
Net sales	(80,548)	(68,970)	(46,172)
Specialty products
Disaggregation of Revenue [Line Items]
Net sales	2,871,628	2,520,305	1,865,125
Structural products
Disaggregation of Revenue [Line Items]
Net sales	$ 1,578,586	$ 1,756,873	$ 1,232,203

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