Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Net Sales	$ 812,652	$ 901,000	$ 1,583,677	$ 1,823,396
Cost of sales	436,833	516,834	856,038	1,037,545
Gross profit	375,819	384,166	727,639	785,851
Selling, general and administrative expenses	116,315	145,596	228,508	315,463
Engineering, research and development expenses	81,885	71,030	153,761	142,936
Amortization of intangible assets	47,513	54,680	97,672	112,254
Goodwill, Impairment Loss	0	0	0	88,872
Gain on termination of alliance agreement	0	154,754	0	154,754
Operating income	130,106	267,614	247,698	281,080
Interest expense	53,687	80,908	111,060	167,054
Interest income	(1,160)	(2,303)	(4,154)	(3,628)
Other expense, net	2,977	7,724	17,262	3,066
Income before income tax expense (benefit)	74,602	181,285	123,530	114,588
Income tax expense (benefit)	6,689	(16,491)	10,145	4,978
Equity in net loss of affiliates	217	130	423	130
Net income	$ 67,696	$ 197,646	$ 112,962	$ 109,480
Basic earnings per common share	$ 0.45	$ 1.32	$ 0.75	$ 0.73
Diluted earnings per common share	$ 0.45	$ 1.31	$ 0.74	$ 0.73
Weighted average shares outstanding:
Basic	150,801	149,825	150,675	149,626
Diluted	151,819	150,837	151,769	150,609