Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Net Sales	$ 807,694	$ 888,239	$ 2,391,371	$ 2,711,635
Cost of sales	435,869	521,165	1,291,907	1,558,710
Gross profit	371,825	367,074	1,099,464	1,152,925
Selling, general and administrative expenses	108,455	116,051	336,963	431,514
Engineering, research and development expenses	80,903	66,810	234,664	209,746
Amortization of intangible assets	46,226	51,239	143,898	163,493
Goodwill, Impairment Loss	0	15,913	0	104,785
Gain on termination of alliance agreement	0	0	0	(154,754)
Operating income	136,241	117,061	383,939	398,141
Interest expense	51,666	77,820	162,726	244,874
Interest income	(1,247)	(2,226)	(5,401)	(5,854)
Other (income) expense, net	(212)	10,243	17,050	13,309
Income before income tax expense (benefit)	86,034	31,224	209,564	145,812
Income tax expense (benefit)	8,190	(2,127)	18,335	2,851
Equity in net loss of affiliates	262	139	685	269
Net income	$ 77,582	$ 33,212	$ 190,544	$ 142,692
Basic earnings per common share	$ 0.51	$ 0.22	$ 1.26	$ 0.95
Diluted earnings per common share	$ 0.51	$ 0.22	$ 1.26	$ 0.95
Weighted average shares outstanding:
Basic	151,196	150,127	150,849	149,793
Diluted	151,924	151,229	151,820	150,816