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Business Segments - Additional Information (Detail) $ in Thousands | 12 Months Ended
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Jul. 31, 2018 USD ($) Segment | Jul. 31, 2017 USD ($) | Jul. 31, 2016 USD ($)
Segment Reporting Information [Line Items] |  |  |
Number of reportable segments | Segment | 2 |  |
Net sales | $ 8,328,909 | $ 7,246,952 | $ 4,582,112
Continuing Operations | Export |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | $ 788,894 | $ 628,176 | $ 368,426
Net sales, Percentage | 9.50% | 8.70% | 8.00%

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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- Details
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