Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2025	Mar. 30, 2024
Operating activities
Net earnings (loss)	$ (4,092)	$ 31,443
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Depreciation and amortization	53,773	49,527
(Gain) loss on disposal of property and equipment	189	(625)
Inventory write-offs for obsolescence	9,030	8,179
Deferred income taxes	1,573	4,376
Stock compensation expense	6,051	5,344
Other	(1,380)	426
Net change in operating assets and liabilities, net of effects of business acquired	(49,046)	(18,459)
Net cash provided by operating activities	16,098	80,211
Investing activities
Capital expenditures	(61,569)	(53,084)
Proceeds from sale of property and equipment	279	751
Purchase of businesses, net of cash acquired	0	(168,616)
Purchase of short-term investments	(21,899)	(19,232)
Maturity of short-term investments	27,832	17,611
Other investing activities	(661)	(1,219)
Net cash used in investing activities	(56,018)	(223,789)
Financing activities
Net proceeds from revolving credit facility	82,000	0
Repurchase of common stock held in treasury	(12,538)	(12,538)
Cash withholding taxes paid when shares withheld for vested equity awards	(3,893)	(4,053)
Net cash provided by (used in) financing activities	52,007	(30,343)
Effect of exchange rate changes on cash and cash equivalents	7,029	(2,257)
Net increase (decrease) in cash and cash equivalents	19,116	(176,178)
Cash and cash equivalents at beginning of period	590,286	972,719
Cash and cash equivalents at end of year	609,402	796,541
Common Stock [Member]
Financing activities
Dividends paid to common stockholders	(12,352)	(12,542)
Class B Convertible Common Stock [Member]
Financing activities
Dividends paid to common stockholders	$ (1,210)	$ (1,210)