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Quarterly Financial Data (unaudited) (Tables) | 12 Months Ended
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Dec. 30, 2017
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Data | The following tables contain selected unaudited consolidated statements of operations data for each quarter of 2017 and 2016 (in thousands, except per share data):
| Quarters Ended |
Fiscal 2017 | April 1, 2017 |  | July 1, 2017 |  | September 30, 2017 |  | December 30, 2017 |
Total revenue | $ | 186,302 |  |  | $ | 192,933 |  |  | $ | 193,692 |  |  | $ | 225,181 |  |
Gross profit | 124,134 |  |  | 128,437 |  |  | 128,665 |  |  | 153,864 |  |
Operating income | 43,195 |  |  | 46,868 |  |  | 47,975 |  |  | 59,323 |  |
Net income | 45,334 |  |  | 46,680 |  |  | 39,235 |  |  | 367 |  |
Net income per share |  |  |  |  |  |  |  |
Basic (1) | $ | 0.90 |  |  | $ | 0.90 |  |  | $ | 0.75 |  |  | $ | 0.01 |  |
Diluted | $ | 0.82 |  |  | $ | 0.83 |  |  | $ | 0.70 |  |  | $ | 0.01 |  |
| Quarters Ended |
Fiscal 2016 | April 2, 2016 |  | July 2, 2016 |  | October 1, 2016 |  | January 2, 2016 |
Total revenue | $ | 171,167 |  |  | $ | 172,636 |  |  | $ | 167,621 |  |  | $ | 183,201 |  |
Gross profit | 114,213 |  |  | 115,135 |  |  | 110,122 |  |  | 124,329 |  |
Operating income | 37,337 |  |  | 36,429 |  |  | 36,604 |  |  | 310,400 |  | (2)
Net income | 27,577 |  |  | 30,023 |  |  | 27,773 |  |  | 215,293 |  | (3)
Net income per share |  |  |  |  |  |  |  |
Basic (1) | $ | 0.56 |  |  | $ | 0.61 |  |  | $ | 0.56 |  |  | $ | 4.31 |  |
Diluted (1) | $ | 0.53 |  |  | $ | 0.57 |  |  | $ | 0.52 |  |  | $ | 3.97 |  |
(1) The sum of the basic earnings per share numbers for each quarter do not equal the basic earnings per share number for the entire year due to quarterly rounding.
(2) On November 5, 2016, the Company entered into the Philips Settlement Agreement, pursuant to which Philips N.V. agreed to pay the Company $300 million. Per the terms of the agreement, $270 million of this settlement is included within Operating income for the quarter ended December 31, 2016. See Note 2 - Summary of Significant Accounting Policies under the subheading “Litigation Costs and Contingencies” and Note 17 - Commitments and Contingencies under the subheading “Litigation” for additional information on the Phillips Settlement Agreement.
(3) Due to the significant impact of the Philips Settlement Agreement on the fourth quarter results, the sum of the basic and diluted earnings per share numbers for each quarter will not equal the basic and diluted earnings per share number for the entire year.

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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