CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jul. 01, 2022
Cash Flows from Operating Activities:
Net income	$ 240,446	$ 192,952
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense from property, plant and equipment and financing leases	75,415	74,037
Amortization of intangible assets and deferred proceeds, net	11,770	11,815
Fair value adjustment of acquisition related contingent consideration	67,174	(1,436)
Pension plan settlement expense	39,777	0
Deferred income taxes	(7,848)	11,189
Loss on sale of property, plant and equipment	4,128	1,327
Amortization of debt costs	494	504
Change in current assets less current liabilities	(41,957)	(59,004)
Change in other noncurrent assets	5,216	21,904
Change in other noncurrent liabilities	(11,277)	(9,753)
Total adjustments	142,892	50,583
Net cash provided by operating activities	383,338	243,535
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(92,893)	(145,182)
Investment in equity method investees	(6,033)	(1,538)
Proceeds from the sale of property, plant and equipment	267	5,255
Acquisition of distribution rights	0	(30,149)
Net cash used in investing activities	(98,659)	(171,614)
Cash Flows from Financing Activities:
Cash dividends paid	(37,495)	(4,687)
Payments of acquisition related contingent consideration	(13,376)	(18,710)
Payments on financing lease obligations	(1,130)	(1,904)
Debt issuance fees	(154)	(131)
Net cash used in financing activities	(52,155)	(25,432)
Net increase in cash during period	232,524	46,489
Cash at beginning of period	197,648	142,314
Cash at end of period	430,172	188,803
Significant non-cash investing and financing activities:
Additions to property, plant and equipment accrued and recorded in accounts payable, trade	23,435	19,626
Right-of-use assets obtained in exchange for operating lease obligations	2,286	9,345
Reductions to leased property under financing leases	$ 0	$ 55,465