CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Mar. 26, 2022	Mar. 27, 2021
Income Statement [Abstract]
Revenues	$ 197,174	$ 186,636
Cost of revenues	102,950	109,930
Gross profit	94,224	76,706
Operating expenses:
Research and development	27,134	24,046
Selling, general and administrative	32,906	30,015
Total operating expenses	60,040	54,061
Operating income	34,184	22,645
Interest income	138	194
Interest expense	(192)	(180)
Other income, net	192	172
Income before income taxes	34,322	22,831
Provision for income taxes	4,450	3,206
Net income	$ 29,872	$ 19,625
Net income per share:
Basic (in dollars per share)	$ 0.38	$ 0.25
Diluted (in dollars per share)	$ 0.38	$ 0.25
Weighted-average number of shares used in per share calculations:
Basic (in shares)	78,246	77,598
Diluted (in shares)	79,468	79,988

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227