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Derivatives and Hedging Activities (Tables) | 9 Months Ended
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Apr. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] | The following table summarizes the amount of pre-tax gains and losses related to derivatives designated as hedging instruments:
| Three months ended April 30, |  |  |  | Nine months ended April 30, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
(Losses) gains recognized in OCI: |  |  |  |  |  |  |
Foreign exchange contracts (cash flow hedges) | $ | (1,751) |  |  | $ | 220 |  |  | $ | (1,192) |  |  | $ | 377 |
Foreign currency denominated debt (net investment hedges) | 707 |  |  | 1,314 |  |  | 1,260 |  |  | 2,336 |
Gains reclassified from OCI into cost of goods sold: |  |  |  |  |  |  |
Forward exchange contracts (cash flow hedges) | 293 |  |  | 292 |  |  | 779 |  |  | 579 |
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] |
| April 30, 2020 |  | July 31, 2019
Designated as cash flow hedges | $ | 21,533 |  |  | $ | 26,013 |
Non-designated hedges | 2,707 |  |  | 3,376 |
Total foreign exchange contracts | $ | 24,240 |  |  | $ | 29,389 |
Fair Values of Derivative Instruments in Consolidated Balance Sheets | Fair values of derivative instruments in the condensed consolidated balance sheets were as follows:
| April 30, 2020 |  |  |  |  |  | July 31, 2019 |  |  |  |
| Prepaid expenses and other current assets |  | Other current liabilities |  | Current maturities on long-term obligations |  | Prepaid expenses and other current assets |  | Other current liabilities |  | Current maturities on long-term obligations
Derivatives designated as hedging instruments: |  |  |  |  |  |  |  |  |  |  |
Foreign exchange contracts (cash flow hedges) | $ | 176 |  |  | $ | — |  |  | $ | — |  |  | $ | 472 |  |  | $ | — |  |  | $ | — |
Foreign currency denominated debt (net investment hedges) | — |  |  | — |  |  | 48,929 |  |  | — |  |  | — |  |  | 50,189 |
Derivatives not designated as hedging instruments: |  |  |  |  |  |  |  |  |  |  |
Foreign exchange contracts | 65 |  |  | 1,360 |  |  | — |  |  | 2 |  |  | 5 |  |  | — |
Total derivative instruments | $ | 241 |  |  | $ | 1,360 |  |  | $ | 48,929 |  |  | $ | 474 |  |  | $ | 5 |  |  | $ | 50,189 |

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- Definition Tabular disclosure of the effective portion of the gains and losses on derivative instruments designated (and non-derivative instruments) designated and qualifying in cash flow hedges and net investment hedges that was recognized in other comprehensive income (loss) during the current period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 + Details
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- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
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