Condensed Consolidated Income Statements - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jul. 02, 2023	Jun. 30, 2024	Jul. 02, 2023
Revenue from Contract with Customer, Excluding Assessed Tax	$ 691,685	$ 709,066	$ 1,341,605	$ 1,383,931
Cost of Goods and Services Sold	306,179	306,735	601,052	600,234
Selling, general and administrative expenses	251,650	267,022	512,221	515,579
Research and development expenses	48,132	57,253	98,492	113,943
Operating income from continuing operations	85,724	78,056	129,840	154,175
Interest And Other Expense Net	(938)	6,502	8,629	53,181
Income from continuing operations before income taxes	86,662	71,554	121,211	100,994
Provision for income taxes	14,056	12,932	19,909	17,527
Income from continuing operations	72,606	58,622	101,302	83,467
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(17,246)	(23,063)	(19,929)	521,567
Net income	$ 55,360	$ 35,559	$ 81,373	$ 605,034
Basic earnings (loss) per share:
Income (loss) from continuing operations (per share)	$ 0.59	$ 0.47	$ 0.82	$ 0.66
Gain (loss) on discontinued operations and dispositions (per share)	(0.14)	(0.18)	(0.16)	4.15
Net income (per share)	0.45	0.28	0.66	4.81
Diluted earnings (loss) per share:
Income (loss) from continuing operations (per share)	0.59	0.47	0.82	0.66
Gain (loss) on discontinued operations and dispositions (per share)	(0.14)	(0.18)	(0.16)	4.14
Net income (per share)	$ 0.45	$ 0.28	$ 0.66	$ 4.80
Weighted average shares of common stock outstanding:
Basic (in shares)	123,354	125,215	123,391	125,745
Diluted (in shares)	123,477	125,398	123,494	125,918
Cash dividends per common share	$ 0.07	$ 0.07	$ 0.14	$ 0.14
Product [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 606,891	$ 624,456	$ 1,172,646	$ 1,216,736
Cost of Goods and Services Sold	274,669	274,566	537,192	532,467
Service [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	84,794	84,610	168,959	167,195
Cost of Goods and Services Sold	$ 31,510	$ 32,169	$ 63,860	$ 67,767