Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Net Sales	$ 512,844	$ 412,327
Cost of sales	277,858	226,849
Gross profit	234,986	185,478
Selling, general and administrative expenses	71,389	58,891
Engineering, research and development expenses	37,748	29,632
Amortization of intangible assets	11,871	16,211
Operating income	113,978	80,744
Interest expense	11,652	10,559
Interest income	(71)	(321)
Other expense, net	4,330	878
Income before income tax expense	98,067	69,628
Income tax expense	13,391	8,622
Net income	$ 84,676	$ 61,006
Basic earnings per common share	$ 0.63	$ 0.45
Diluted earnings per common share	$ 0.62	$ 0.45
Weighted shares outstanding:
Basic	135,068	134,745
Diluted	136,502	136,369