Summary of significant accounting policies (Policies)	9 Months Ended
Summary of significant accounting policies (Policies)	Sep. 30, 2015
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) and in accordance with the interim period reporting requirements of Form 10-Q. The unaudited condensed consolidated financial statements reflect all adjustments (consisting only of normal recurring adjustments) that management believes are necessary for the fair presentation of the Company's financial condition, results of operations, and cash flows for the periods presented, but are not necessarily indicative of the results expected for the full fiscal year or any other future period. The condensed consolidated balance sheet at December 31, 2014 has been derived from the audited financial statements at that date, but does not include all of the disclosures required by GAAP. This quarterly report should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2014 (2014 Annual Report). There have been no significant changes in the Company’s accounting policies from those disclosed in the footnotes to the audited financial statements contained in its 2014 Annual Report.
Principles of consolidation	Principles of consolidation The condensed consolidated financial statements include all the accounts of the Company and its wholly-owned subsidiaries. Unless otherwise specified, references to the Company are references to GoPro, Inc. and its consolidated subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.
Use of estimates	Use of estimates The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts reported and disclosed in the Company’s condensed consolidated financial statements and accompanying notes. The Company regularly evaluates estimates and assumptions in several areas, including those related to: revenue recognition (including sales returns, web-based sale deliveries at period-end, implied post contract support, and marketing allowances), collectability of accounts receivable, stock-based compensation, inventory valuation, product warranty liabilities, the valuation and useful lives of intangible assets and property and equipment, goodwill, and income taxes. The Company bases its estimates and assumptions on historical experience and on various other factors that it believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ materially from management's estimates. To the extent there are material differences between the estimates and the actual results, future results of operations could be affected.
Comprehensive income	Comprehensive income For all periods presented, comprehensive income approximated net income. Therefore, the condensed consolidated statements of comprehensive income have been omitted from the condensed consolidated financial statements.
Prior period reclassifications	Prior period reclassifications Reclassifications of certain prior period amounts in the condensed consolidated financial statements have been made to conform to the current period presentation.
Recent accounting pronouncements	Recent accounting pronouncements In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2014-09 (ASU 2014-09), Revenue from Contracts with Customers, which amends the existing accounting standards for revenue recognition. ASU 2014-09 is based on principles that govern the recognition of revenue at an amount to which an entity expects to be entitled when products and services are transferred to customers. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date (ASU 2015-14), which defers the effective date by one year while providing the option to adopt the standard on the original effective date. Accordingly, the Company may adopt the standard either in its first quarter of 2017 or its first quarter of 2018 and it can be adopted either retrospectively to each prior reporting period presented or as a cumulative effect adjustment as of the date of adoption. The Company is currently evaluating the timing and the impact the adoption of ASU 2014-09 will have on the Company's consolidated financial statements. In September 2015, the FASB issued ASU 2015-16, Business Combinations (Topic 805), which amends the existing guidance for business combinations. Under the updated guidance, the acquirer in a business combination is required to recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. This new standard will become effective for the Company on January 1, 2016, and will be applied prospectively to adjustments to provisional amounts that occur after the effective date of this update. The Company is currently evaluating the impact the adoption of ASU 2015-16 will have on the Company's consolidated financial statements.