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Goodwill And Other Intangible Assets (Reconciliation Of Goodwill) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 31, 2015 | Jul. 31, 2014
Goodwill [Line Items] |  |
Beginning Balance | $ 166,406 | $ 165,568
Goodwill acquired | 66,814 |
Foreign exchange translation | (9,488) | 838
Ending Balance | 223,732 | 166,406
Engine Products [Member] |  |
Goodwill [Line Items] |  |
Beginning Balance | 72,373 | 72,321
Foreign exchange translation | (1,401) | 52
Ending Balance | 70,972 | 72,373
Industrial Products [Member] |  |
Goodwill [Line Items] |  |
Beginning Balance | 94,033 | 93,247
Goodwill acquired | 66,814 |
Foreign exchange translation | (8,087) | 786
Ending Balance | $ 152,760 | $ 94,033

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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