XML 99 R119.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Quarterly Financial Data (Unaudited) - Additional Information (Detail) (Subsequent Event [Member]) | 0 Months Ended
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Jan. 09, 2015 Shareholder
Class A Common Stock [Member] |
Number of stockholders | 413 gef_NumberOfStockholders / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Class B Common Stock [Member] |
Number of stockholders | 102 gef_NumberOfStockholders / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

X
- Definition Number of stockholders. + References No definition available. + Details
Name: | gef_NumberOfStockholders
Namespace Prefix: | gef_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration