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Derivative Financial Instruments (Tables) | 6 Months Ended
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Jun. 30, 2018
Derivative Financial Instruments |
Schedule of before-tax effect of derivative instruments not designated as hedging instruments | The before-tax effect of derivative instruments not designated as hedging instruments was as follows (in thousands):
|  | Three Months Ended |  | Six Months Ended |  |  |
Gain (Loss) Recognized in Income |  | June 30, 2018 |  | July 1, 2017 |  | June 30, 2018 |  | July 1, 2017 |  | Location |
Foreign currency forward contracts |  | $ | 114 |  | $ | (35 | ) | $ | (9 | ) | $ | (129 | ) | Interest income and other, net |

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- Definition Tabular disclosure of derivative instruments (including nonderivative instruments that are designated and qualify as hedging instruments) of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959 + Details
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