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Quarterly Results of Operations (Unaudited) (Tables) | 12 Months Ended
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Dec. 30, 2017
Quarterly Financial Information Disclosure [Abstract] |
Summary of Quarterly Results of Operations | The following is a summary of the unaudited quarterly Results of Operations for the fiscal years ended December 30, 2017 and December 31, 2016:
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
(in thousands, except per share amounts) |  | 2017 |
Net sales |  | $ | 221,625 |  |  | $ | 229,262 |  |  | $ | 224,615 |  |  | $ | 227,719 |
Income from operations |  |  | 45,042 |  |  |  | 44,999 |  |  |  | 42,790 |  |  |  | 43,409 |
Net income |  |  | 29,187 |  |  |  | 28,437 |  |  |  | 27,008 |  |  |  | 21,967 |
Diluted earnings per share |  |  | 0.85 |  |  |  | 0.83 |  |  |  | 0.80 |  |  |  | 0.65 |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
(in thousands, except per share amounts) |  | 2016 |
Net sales |  | $ | 208,148 |  |  | $ | 209,573 |  |  | $ | 212,786 |  |  | $ | 229,097 |
Income from operations |  |  | 38,931 |  |  |  | 40,989 |  |  |  | 41,633 |  |  |  | 47,048 |
Net income |  |  | 24,671 |  |  |  | 25,982 |  |  |  | 26,695 |  |  |  | 28,701 |
Diluted earnings per share |  |  | 0.71 |  |  |  | 0.75 |  |  |  | 0.77 |  |  |  | 0.83 |

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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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