CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Oct. 01, 2023	Oct. 02, 2022
Cash flows from operating activities:
Net income	$ 331,698	$ 543,200
Adjustments to reconcile net income from operations to net cash provided by operating activities:
Depreciation	68,858	67,902
Stock-based compensation	45,236	37,420
Provision for excess and obsolete inventory	23,069	18,929
Amortization	14,083	15,012
Deferred taxes	(24,026)	(28,373)
(Gains) losses on investments	(3,159)	11,436
Other	(13)	740
Changes in operating assets and liabilities
Accounts receivable	30,191	4,248
Inventories	6,395	(68,817)
Prepayments and other assets	(63,982)	(94,331)
Accounts payable and other liabilities	3,999	(71,682)
Deferred revenue and customer advances	(49,517)	(5,896)
Retirement plans contributions	(3,698)	(3,897)
Income taxes	(42,683)	(31,370)
Net cash provided by operating activities	336,451	394,521
Cash flows from investing activities:
Purchases of property, plant and equipment	(115,306)	(128,672)
Purchases of marketable securities	(137,786)	(267,175)
Issuance of convertible loan	(5,000)	0
Proceeds from maturities of marketable securities	71,447	182,092
Proceeds from sales of marketable securities	36,963	259,200
Proceeds from life insurance	460	0
Net cash (used for) provided by investing activities	(149,222)	45,445
Cash flows from financing activities:
Repurchase of common stock	(346,492)	(750,000)
Dividend payments	(51,081)	(52,578)
Payments of convertible debt principal	(26,735)	(52,005)
Payments related to net settlement of employee stock compensation awards	(20,586)	(32,987)
Issuance of common stock under stock purchase and stock option plans	34,084	28,733
Net cash used for financing activities	(410,810)	(858,837)
Effects of exchange rate changes on cash and cash equivalents	5,769	7,418
Decrease in cash and cash equivalents	(217,812)	(411,453)
Cash and cash equivalents at beginning of period	854,773	1,122,199
Cash and cash equivalents at end of period	636,961	710,746
Non-cash investing activities:
Capital expenditures incurred but not yet paid:	$ 2,392	$ 2,349