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Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Minimum Minimum [Member] Expiration Date Trading Arrangement Expiration Date Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Joint Venture Variable Interest Entity Disclosure [Text Block] Impact of foreign exchange on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Cash equivalents, fair value Cash and Cash Equivalents, Fair Value Disclosure TOTAL STOCKHOLDERS’ EQUITY Stockholders' Equity, beginning balance Stockholders' Equity, ending balance Equity, Including Portion Attributable to Noncontrolling Interest Outstanding (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, 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That are Outstanding and Unvested [Member] Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] Europe Europe [Member] Proceeds from sales of short-term investments Proceeds from Sale of Debt Securities, Available-for-Sale Scenario [Axis] Scenario [Axis] Options vested (in years) Share-Based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Weighted Average Remaining Contractual Term Share-Based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Weighted Average Remaining Contractual Term Unvested RSUs and PSUs Restricted Stock Units and Performance Stock Units [Member] Restricted Stock Units and Performance Stock Units Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Business Combination [Table] Business Combination [Table] Equity Component [Domain] Equity Component 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cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Accounts Receivable Accounts Receivable [Member] Income Statement [Abstract] STOCKHOLDERS’ EQUITY: Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Ownership [Axis] Ownership [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Operating expenses: Operating Expenses [Abstract] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Intangible Asset, Finite-Lived Intangible Asset, Finite-Lived [Table Text Block] Expected number of countries exited Restructuring And Related Cost, Expected Number Of Countries Exited Restructuring And Related Cost, Expected Number Of Countries Exited Number of Stock Options Outstanding (in thousands) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Voting rights, vote per share Common Stock, Voting Rights, Votes Common Stock, Voting Rights, Votes Cash equivalents and short-term investments, amortized cost Cash, Cash Equivalents And Available-For-Sale Debt Securities, Amortized Cost, Excluding Accrued Interest, After Allowance For Credit Loss Cash, Cash Equivalents And Available-For-Sale Debt Securities, Amortized Cost, Excluding Accrued Interest, After Allowance For Credit Loss Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Document Information [Table] Document Information [Table] Founder Holdback Founder Holdback [Member] Founder Holdback All Individuals All Individuals [Member] Subsequent Events Subsequent Events [Text Block] Revenue by Geographic Location Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue [Table Text Block] Name Forgone Recovery, Individual Name Period for recognition (in years) Share-Based Payment 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Wealth Management Products Cash equivalents and short-term investments, fair value Cash, Cash Equivalents And Available-For-Sale Debt Securities Cash, Cash Equivalents And Available-For-Sale Debt Securities Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Issuance of common stock related to vested exercised stock options (in shares) Options exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Equity instruments other than options grant date fair value (in USD per share) Granted (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Due within 1 year Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Deferred revenue recognized Contract with Customer, Liability, Revenue 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Stock Repurchased During Period, Value Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Issuance of common stock related to vested exercised stock options Stock Issued During Period, Value, Stock Options Exercised Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted Goodwill and Intangible Assets, Net Intangible Asset and Goodwill [Text Block] Underlying Securities Award Underlying Securities Amount Comprehensive loss attributable to noncontrolling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Revenues Revenue from Contract with Customer [Text Block] Proceeds from the issuance of common stock upon exercise of stock options, including early exercises, net of repurchases Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option 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contribution amount Defined Contribution Plan, Cost Entity Small Business Entity Small Business Comprehensive loss attributable to GitLab Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Common stock withheld related to net share settlement of equity awards (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Noncontrolling Interest [Table] Noncontrolling Interest [Table] 2021 Equity Incentive Plan 2021 Equity Incentive Plan [Member] 2021 Equity Incentive Plan Distribution Channel Two Distribution Channel Two [Member] Distribution Channel Two Subsequent Events [Abstract] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other non-current assets Other Assets, Noncurrent Cash equivalents and short-term 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