Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Net Sales	$ 378,874	$ 383,059	$ 769,921	$ 750,258
Cost of sales	212,600	200,681	426,254	391,883
Gross profit	166,274	182,378	343,667	358,375
Selling, general and administrative expenses	64,150	65,200	146,404	123,469
Engineering, research and development expenses	30,624	30,231	59,615	57,817
Amortization of intangible assets	16,591	12,014	35,248	23,683
Operating income	54,909	74,933	102,400	153,406
Interest expense	11,315	8,296	22,199	16,455
Interest income	(1,623)	(1,371)	(2,848)	(2,304)
Other (income) expense, net	(122,015)	3,877	(122,263)	4,016
Income before income tax expense	167,232	64,131	205,312	135,239
Income tax expense	43,235	9,782	48,657	23,328
Net income	$ 123,997	$ 54,349	$ 156,655	$ 111,911
Basic net income per common share	$ 0.92	$ 0.38	$ 1.16	$ 0.79
Diluted net income per common share	$ 0.91	$ 0.38	$ 1.15	$ 0.78
Weighted shares outstanding:
Basic	135,378	141,701	135,338	141,641
Diluted	136,581	143,238	136,637	143,445