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Derivative Instruments (Tables) | 12 Months Ended
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Jul. 31, 2017
Derivative Instruments [Abstract] |
Schedule of derivative instruments on the consolidated statements of income |
|  |  |  | Amount of Gain (Loss) Recognized on Derivatives |
|  |  |  | Year ended July 31, |
(in thousands) |  | 2017 |  |  | 2016 |  |  | 2015 |
Derivatives not designated or not qualifying as hedging instruments |  | Location of Gain (Loss) Recognized on Derivatives |  |  |  |  |  |  |  |  |
Foreign exchange forwards |  | Other income (expense), net |  | $ | — |  |  | $ | (145 | ) |  | $ | (58 | )

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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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