CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 26, 2020 USD ($)	Sep. 25, 2021 USD ($)	Sep. 26, 2020 USD ($)
OPERATING ACTIVITIES
Net income	$ 55,356	$ 231,862	$ 71,009
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	14,200	41,441	41,953
Amortization of intangibles	10,104	31,608	29,912
Deferred revenue		(2,154)	(438)
Non-cash inventory charges		6,807	0
Impairment charges	0	0	36,078
Stock-based compensation		16,010	14,544
Gain on investments and other assets		(9,739)	(1,200)
Deferred income taxes		1,116	1,567
Other		11,735	(8,549)
Changes in operating assets and liabilities:
Trade receivables		(83,793)	(29,362)
Inventories		(71,232)	(1,611)
Accounts payable		53,945	6,661
Accrued liabilities and income taxes		23,294	(2,095)
Prepaid expenses and other assets		(10,236)	5,787
Net cash provided by operating activities		240,664	164,256
INVESTING ACTIVITIES
Acquisitions of businesses, net of cash acquired		(110,646)	0
Purchases of property, plant, and equipment		(57,526)	(41,536)
Net proceeds from sale of property, plant and equipment, and other		2,561	148
Net cash used in investing activities		(165,611)	(41,388)
FINANCING ACTIVITIES
Proceeds of revolving credit facility		0	240,000
Payments of revolving credit facility		(30,000)	(60,000)
Payments of term loan		0	(145,000)
Net proceeds related to stock-based award activities		5,771	6,437
Purchases of common stock		0	(22,927)
Debt issuance costs		0	(1,786)
Cash dividends paid		(36,648)	(35,100)
Net cash used in financing activities		(60,877)	(18,376)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash		(5,832)	6,259
Increase in cash, cash equivalents, and restricted cash		8,344	110,751
Cash, cash equivalents, and restricted cash at beginning of period		687,525	531,139
Cash, cash equivalents, and restricted cash at end of period	641,890	695,869	641,890
Supplementary Cash Flow Information
Cash and cash equivalents	641,890	690,682	641,890
Restricted cash included in prepaid expenses and other current assets	0	3,483	0
Restricted cash included in other assets	0	1,704	0
Cash paid interest during the period	$ 6,400	14,830	17,228
Capital expenditures, not yet paid		$ 9,234	$ 6,267