Represents the period allowed to plaintiffs by the court to amend their complaints.

No definition available.

Name:	gmcr_LossContingencyPeriodAllowedToPlaintiffsToAmendComplaint
Namespace Prefix:	gmcr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of affirmative defenses shared by all defendants.

+ References

No definition available.

+ Details

Name:	gmcr_NumberOfAffirmativeDefensesSharedByDefendants
Namespace Prefix:	gmcr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of separate complaints ordered by the federal court to be consolidated into the pending action during the period.

+ References

No definition available.

+ Details

Name:	gmcr_NumberOfComplaintsOrderedToBeConsolidated
Namespace Prefix:	gmcr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of separate complaints in the consolidated action.

+ References

No definition available.

+ Details

Name:	gmcr_NumberOfSeparateComplaintsInConsolidatedAction
Namespace Prefix:	gmcr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

+ Details

Name:	us-gaap_LossContingencyNewClaimsFiledNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of pending claims pertaining to a loss contingency.

+ References

+ Details

Name:	us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Commitments and Contingencies (Details 3) (Legal Proceedings and Stockholder Litigation)	0 Months Ended			12 Months Ended
	Apr. 27, 2012 claim	Nov. 29, 2010 claim	Sep. 28, 2010 claim	Sep. 28, 2013 claim
CERT v. Brad Barry LLC and Starbucks Corp
Legal Proceedings
Number of affirmative defenses shared by all defendants				3
Putative securities fraud class actions
Legal Proceedings
Number of pending actions				2
Consolidated putative securities fraud class action, Fifield v. Green Mountain Coffee Roasters
Legal Proceedings
Period allowed to plaintiffs to amend their complaint				30 days
Putative stockholder derivative actions
Legal Proceedings
Number of pending actions				2
Consolidated putative stockholder derivative action in District of Vermont
Legal Proceedings
Number of separate complaints in consolidated action				5
Number of separate complaints filed after disclosure of SEC Inquiry			2
Number of separate complaints ordered by federal court to be consolidated into the action	2	2