Percentage of the amount of GRI's fiscal year 2011 net income that exceeds a certain threshold that GRI's selling shareholders are entitled to receive.

No definition available.

+ Details

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- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

No definition available.

+ Details

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Namespace Prefix:	jny_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

This element represents the aggregate cost of investments accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 12

-Article 5

+ Details

Name:	us-gaap_EquityMethodInvestmentAggregateCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
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EQUITY METHOD INVESTMENTS (Details) (GRI [Member], USD $) In Millions, unless otherwise specified	Oct. 05, 2013	Aug. 30, 2013	Jun. 21, 2012	Jun. 24, 2009	Jun. 20, 2008
GRI [Member]
Equity Method Investments
Equity Method Investment, Ownership Percentage	34.25%	34.25%		25.00%	10.00%
Equity Method Investment, Aggregate Cost					$ 20.2
Additional Investment Cost		$ 14.7	$ 3.5	$ 15.2
Contingent additional cash payment percentage of net income over threshold (in hundredths)				60.00%