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Intangible Assets and Goodwill - Components of Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands | 3 Months Ended |
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Oct. 31, 2019 | Jul. 31, 2019
Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 1,216,209 | $ 1,216,035
Accumulated Amortization | $ 269,628 | 245,224
Dealer network/customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average remaining life | 18 years |
Cost | $ 750,734 | 750,641
Accumulated Amortization | $ 207,348 | 191,017
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average remaining life | 18 years |
Cost | $ 268,811 | 268,778
Accumulated Amortization | $ 37,824 | 34,518
Design technology and other intangibles |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted average remaining life | 9 years |
Cost | $ 196,664 | 196,616
Accumulated Amortization | $ 24,456 | $ 19,689

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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