CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Oct. 01, 2023		Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 636,961		$ 854,773
Marketable securities	79,570		39,612
Accounts receivable, less allowance for credit losses of $2,191 and $1,955 at October 1, 2023 and December 31, 2022, respectively	455,878		491,145
Inventories, net	322,632		325,019
Prepayments	593,366		532,962
Other current assets	10,952		14,404
Total current assets	2,099,359		2,257,915
Property, plant and equipment, net	436,449		418,683
Operating lease right-of-use assets, net	78,978		73,734
Marketable securities	103,911		110,777
Deferred tax assets	162,669		142,784
Retirement plans assets	11,403		11,761
Other assets	37,581		28,925
Acquired intangible assets, net	39,165		53,478
Goodwill	401,140		403,195
Total assets	3,370,655	[1]	3,501,252
Current liabilities:
Accounts payable	176,117		139,722
Accrued employees' compensation and withholdings	155,246		212,266
Deferred revenue and customer advances	109,445		148,285
Other accrued liabilities	122,609		112,271
Operating lease liabilities	18,026		18,594
Income taxes payable	35,687		65,010
Current debt	23,529		50,115
Total current liabilities	640,659		746,263
Retirement plans liabilities	123,244		116,005
Long-term deferred revenue and customer advances	34,405		45,131
Long-term other accrued liabilities	17,114		15,981
Deferred tax liabilities	238		3,267
Long-term operating lease liabilities	69,364		64,176
Long-term incomes taxes payable	44,331		59,135
Total liabilities	929,355		1,049,958
Commitments and contingencies (Note P)
SHAREHOLDERS' EQUITY
Common stock, $0.125 par value, 1,000,000 shares authorized; 153,235 and 155,759 shares issued and outstanding at October 1, 2023 and December 31, 2022, respectively	19,154		19,470
Additional paid-in capital	1,816,137		1,755,963
Accumulated other comprehensive loss	(47,928)		(49,868)
Retained earnings	653,937		725,729
Total shareholders' equity	2,441,300		2,451,294
Total liabilities and shareholders' equity	$ 3,370,655		$ 3,501,252

[1] Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities, and certain other assets.