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Commitments And Contingencies (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jul. 31, 2015 | Apr. 30, 2015 | Jan. 31, 2015 | Oct. 31, 2014 | Jul. 31, 2014 | Apr. 30, 2014 | Jan. 31, 2014 | Oct. 31, 2013 | Jul. 31, 2015 | Jul. 31, 2014 | Jul. 31, 2013 | Jul. 14, 2015
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total expense | $ 28,100 |  |  |  | $ 28,000 |  |  |  | $ 28,100 | $ 28,000 | $ 27,500 |
2016 | 11,400 |  |  |  |  |  |  |  | 11,400 |  |  |
2017 | 7,400 |  |  |  |  |  |  |  | 7,400 |  |  |
2018 | 5,100 |  |  |  |  |  |  |  | 5,100 |  |  |
2019 | 2,800 |  |  |  |  |  |  |  | 2,800 |  |  |
2020 | 1,000 |  |  |  |  |  |  |  | 1,000 |  |  |
Thereafter | 200 |  |  |  |  |  |  |  | 200 |  |  |
Annual sales | $ 610,578 | $ 575,588 | $ 588,537 | $ 596,510 | $ 668,226 | $ 624,234 | $ 581,622 | $ 599,384 | 2,371,213 | $ 2,473,466 | $ 2,436,948 |
Industrias Partmo S.a. [Member] |  |  |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of shares to be acquired |  |  |  |  |  |  |  |  |  |  |  | 100.00%
Annual sales |  |  |  |  |  |  |  |  | $ 15,000 |  |  |

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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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