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Net income per share attributable to common stockholders - Additional Information (Details)	1 Months Ended
	Jun. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares less than 10% of aggregate shares outstanding, conversion ratio	1gpro_StockholdersEquityNoteOutstandingSharesLessthan10ofAggregateSharesOutstandingConversionRatio
Common Class A [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common stock, number of voting rights	1gpro_CommonStockVotingRightsNumber / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Common Class B [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common stock, number of voting rights	10gpro_CommonStockVotingRightsNumber / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember

X

- Definition

Common Stock, Voting Rights, Number

+ References

No definition available.

+ Details

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

X

- Definition

Stockholders' Equity Note, Outstanding Shares Less than 10% of Aggregate Shares Outstanding, Conversion Ratio

+ References

No definition available.

+ Details

Name:	gpro_StockholdersEquityNoteOutstandingSharesLessthan10ofAggregateSharesOutstandingConversionRatio
Namespace Prefix:	gpro_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: