XML 70 R56.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Goodwill (Details Textuals) - USD ($) $ in Millions | Jul. 31, 2016 | Jul. 31, 2015
--- | --- | ---
Goodwill [Abstract] |  |
Goodwill impairment losses | $ 21.8 | $ 21.8

X
- References No definition available. + Details
Name: | cprt_GoodwillAbstract
Namespace Prefix: | cprt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of accumulated impairment loss for 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 (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant