CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 03, 2022		Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 794,603		$ 1,122,199
Marketable securities	282,016		244,231
Accounts receivable, less allowance for credit losses of $1,891 and $2,012 at April 3, 2022 and December 31, 2021, respectively	546,881		550,749
Inventories, net	259,341		243,330
Prepayments	479,414		406,266
Other current assets	12,127		9,452
Total current assets	2,374,382		2,576,227
Property, plant and equipment, net	399,485		387,240
Operating lease right-of-use assets, net	67,718		68,807
Marketable securities	126,130		133,858
Deferred tax assets	113,556		102,428
Retirement plans assets	14,669		15,110
Other assets	23,480		24,096
Acquired intangible assets, net	69,846		75,635
Goodwill	419,888		426,024
Total assets	3,609,154	[1]	3,809,425
Current liabilities:
Accounts payable	156,493		153,133
Accrued employees' compensation and withholdings	139,287		253,667
Deferred revenue and customer advances	155,761		146,185
Other accrued liabilities	118,252		124,187
Operating lease liabilities	18,523		19,977
Income taxes payable	103,386		88,789
Current debt	20,497		19,182
Total current liabilities	712,199		805,120
Retirement plans liabilities	151,697		151,141
Long-term deferred revenue and customer advances	51,698		54,921
Long-term other accrued liabilities	15,748		15,497
Deferred tax liabilities	4,927		6,327
Long-term operating lease liabilities	55,934		56,178
Long-term incomes taxes payable	67,041		67,041
Debt	75,378		89,244
Total liabilities	1,134,622		1,245,469
Commitments and contingencies (Note Q)
Mezzanine equity:
Convertible common shares			1,512
SHAREHOLDERS' EQUITY
Common stock, $0.125 par value, 1,000,000 shares authorized; 161,053 and 162,251 shares issued and outstanding at April 3, 2022 and December 31, 2021, respectively	20,132		20,281
Additional paid-in capital	1,711,690		1,811,545
Accumulated other comprehensive loss	(19,479)		(5,948)
Retained earnings	762,189		736,566
Total shareholders' equity	2,474,532		2,562,444
Total liabilities and shareholders' equity	$ 3,609,154		$ 3,809,425

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