XML 28 R44.htm IDEA: XBRL DOCUMENT v2.4.0.8

Legal Proceedings (Details Textual) (USD $) In Millions, unless otherwise specified	Apr. 30, 2014
Legal Proceedings [Abstract]
Sales tax including penalties and interest expense	$ 73.8

X

- Definition

The amount of the sales tax including penalties and interest raised on demand by the state authorities after performing audit.

+ References

No definition available.

+ Details

Name:	cprt_SalesTaxesPenaltiesAndInterestPayable
Namespace Prefix:	cprt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration