Payment To Related Party

No definition available.

Name:	gpro_PaymentToRelatedParty
Namespace Prefix:	gpro_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Related Party Transaction, Aggregate Payments to Related Party for Naming Rights

+ References

No definition available.

+ Details

Name:	gpro_RelatedPartyTransactionAggregatePaymentstoRelatedPartyforNamingRights
Namespace Prefix:	gpro_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Related Party Transaction, Devices Provided to Related Party at No Cost

+ References

No definition available.

+ Details

Name:	gpro_RelatedPartyTransactionDevicesProvidedtoRelatedPartyatNoCost
Namespace Prefix:	gpro_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Naming Rights Agreement, Period

+ References

No definition available.

+ Details

Name:	gpro_RelatedPartyTransactionNamingRightsAgreementPeriod
Namespace Prefix:	gpro_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Payments for Purchases from Related Party

+ References

No definition available.

+ Details

Name:	gpro_RelatedPartyTransactionPaymentsforPurchasesfromRelatedParty
Namespace Prefix:	gpro_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Related Party Transaction, Payments to be Made to Related Party for Naming Rights

+ References

No definition available.

+ Details

Name:	gpro_RelatedPartyTransactionPaymentstobeMadetoRelatedPartyforNamingRights
Namespace Prefix:	gpro_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k)(1))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph k

-Subparagraph 1

-Article 4

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 3

-Article 7

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.3)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10(3))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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

- Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=gpro_ImmediateFamilyMemberofMemberoftheBoardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_AffiliatedEntityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_ChiefExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_ExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related parties (Details) (USD $)	3 Months Ended		12 Months Ended
Related parties (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2013 Device	Jun. 30, 2013
Company Affiliated with Investors [Member] \| Related Party Transaction, Contract Manufacturing Agreement [Member]
Related Party Transaction [Line Items]
Payments made to affiliated vendor for services rendered	$ 500,000	$ 8,400,000
Chief Executive Officer (CEO) [Member] \| Related Party Transaction, Chartered Aircraft Expenses [Member]
Related Party Transaction [Line Items]
Payments to related parties	400,000	0
Immediate Family Member of Member of the Board [Member]
Related Party Transaction [Line Items]
Naming rights agreement, period			3 years
Payments to be made to related party for naming rights			500,000
Number of devices provided to related party at no cost			100
Aggregate payments to related party for naming rights	300,000
Executive Officer [Member] \| Related Party Transaction, Demand Payment Loan [Member]
Related Party Transaction [Line Items]
Loan amount to executive officer pursuant to demand payment loan				$ 150,000