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Summary of Significant Accounting Policies | 9 Months Ended
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Sep. 29, 2013
Accounting Policies [Abstract] |
Summary of Significant Accounting Policies | NOTE 1: Summary of Significant Accounting Policies As permitted by the rules of the Securities and Exchange Commission applicable to Quarterly Reports on Form 10-Q, these notes are condensed and do not contain all disclosures required by generally accepted accounting principles (GAAP). Reference should be made to the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012. In the opinion of the management of Cognex Corporation (the “Company”), the accompanying consolidated unaudited financial statements contain all adjustments, consisting of normal, recurring adjustments and financial statement reclassifications necessary to present fairly the Company’s financial position as of September 29, 2013, and the results of its operations for the three-month and nine-month periods ended September 29, 2013 and September 30, 2012, and changes in shareholders’ equity, comprehensive income, and cash flows for the periods presented. On July 29, 2013, the Company’s Board of Directors declared a two-for-one split of the Company’s common stock, which was effected through a stock dividend distributed on September 16, 2013. All references made to share or per share amounts in the accompanying consolidated financial statements and applicable disclosures have been restated to reflect the effect of this two-for-one stock split for all periods presented. The results disclosed in the Consolidated Statements of Operations for the three-month and nine-month periods ended September 29, 2013 are not necessarily indicative of the results to be expected for the full year.

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- Definition The entire disclosure for all significant accounting policies of the reporting entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18726-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18861-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18743-107790 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18854-107790 + Details
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