Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Operating activities
Net earnings	$ 31,443	$ 112,189
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	49,527	43,301
(Gain) loss on disposal of property and equipment	(625)	(64)
Inventory write-offs for obsolescence	8,179	8,986
Deferred income taxes	4,376	7,329
Stock compensation expense	5,344	2,965
Other operating activities	426	(2,696)
Net change in operating assets and liabilities	(18,459)	(42,117)
Net cash provided by operating activities	80,211	129,893
Investing activities
Capital expenditures	(53,084)	(45,574)
Proceeds from sale of property and equipment	751	326
Purchase of businesses, net of cash received	(168,616)	0
Purchase of short-term investments	(19,232)	(41)
Maturity of short-term investments	17,611	121,768
Other investing activities	(1,219)	(892)
Net cash provided by (used in) investing activities	(223,789)	75,587
Financing activities
Net proceeds (payments) on revolving credit facility	0	65,000
Repurchase of common stock held in treasury	(12,538)	(20,173)
Cash withholding taxes paid when shares withheld for vested equity awards	(4,053)	(3,653)
Net cash provided by (used in) financing activities	(30,343)	27,154
Effect of exchange rate changes on cash and cash equivalents	(2,257)	4,075
Net increase (decrease) in cash and cash equivalents	(176,178)	236,709
Cash and cash equivalents at beginning of period	972,719	610,825
Cash and cash equivalents at end of year	796,541	847,534
Common Stock [Member]
Financing activities
Dividends paid to common stockholders	(12,542)	(12,810)
Class B Convertible Common Stock [Member]
Financing activities
Dividends paid to common stockholders	$ (1,210)	$ (1,210)