Description of Business and Basis of Presentation	3 Months Ended
Description of Business and Basis of Presentation	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Presentation	Description of Business and Basis of Presentation Description of Business Ouster, Inc. was incorporated in the Cayman Islands on June 4, 2020 as “Colonnade Acquisition Corp”. (“CLA”). Following the closing of the business combination in March 2021, the Company domesticated as a Delaware corporation and changed its name to “Ouster, Inc.” The Company’s prior operating subsidiary, Ouster Technologies, Inc. (“OTI” and prior to the Merger (as defined below)), was incorporated in the state of Delaware on June 30, 2015. The Company is a leading provider of high-resolution digital lidar sensors that offer advanced 3D vision to machinery, vehicles, robots, and fixed infrastructure assets, allowing each to understand and visualize the surrounding world and ultimately enabling safe operation and ubiquitous autonomy. Unless the context otherwise requires, references in this subsection to “the Company” refer to the business and operations of OTI (formerly known as Ouster, Inc.) and its consolidated subsidiaries prior to the Merger (as defined below) and to Ouster, Inc. (formerly known as CLA) and its consolidated subsidiaries following the consummation of the Merger. CLA, the Company’s legal predecessor, was originally a blank check company incorporated as a Cayman Islands exempted company on June 4, 2020. CLA was formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. On March 11, 2021, CLA consummated a merger (the “Merger”) with the Company pursuant to an Agreement and Plan of Merger (the “Merger Agreement”) dated as of December 21, 2020. The Merger was accounted for as a reverse recapitalization, CLA is treated as the “acquired” company for financial reporting purposes. Accordingly, for accounting purposes, the financial statements of the Company represent a continuation of the financial statements of OTI with the Merger being treated as the equivalent of OTI issuing stock for the net assets of CLA, accompanied by a recapitalization whereby no goodwill or other intangible assets are recorded. Transactions and balances prior to the Merger are those of OTI. The shares and net loss per share available to holders of OTI’s common stock prior to the Merger have been retroactively restated as shares reflecting the exchange ratio established in the Merger Agreement. On February 10, 2023, the Company completed the merger with Velodyne Lidar, Inc., a Delaware corporation (“Velodyne”) pursuant to the terms of the Agreement and Plan of Merger (the “Velodyne Merger Agreement”) with Velodyne, Merger Sub I and Merger Sub II (the “Velodyne Merger”) dated as of November 4, 2022, accounted for as a business combination with the Company being an accounting acquiror (Note 3). Basis of Presentation and Principles of Consolidation The unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries (all of which are wholly owned) and have been prepared in conformity with U.S. generally accepted accounting principles (“US GAAP”) applicable to interim periods. All intercompany balances and transactions have been eliminated in consolidation. The presentation of certain prior period amounts has been reclassified to conform with current year presentation. The unaudited condensed consolidated financial statements include all adjustments (consisting of only normal recurring adjustments) necessary for a fair statement of the results of operations for the periods shown. The unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements as of and for the year ended December 31, 2022 and the notes related thereto, included in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on March 24, 2023. The year-end condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by US GAAP. Certain information and note disclosures normally included in the audited financial statements prepared in accordance with US GAAP have been condensed or omitted from this report, as is permitted by applicable rules and regulations. The results of operations for any interim period are not necessarily indicative of the results to be expected for the year ending December 31, 2023 or for any other future years or interim periods. On April 6, 2023, the Board of Directors approved a one-for-10 reverse stock split and a corresponding reduction in authorized shares of common stock (the “Reverse Stock Split”). On April 20, 2023, the Company filed with the Secretary of State of the State of Delaware a Certificate of Amendment to its Certificate of Incorporation to effect the one-for-10 Reverse Stock Split of the Company’s common stock and a corresponding reduction in authorized shares of common stock. The par value of the Company’s common stock was not adjusted as a result of the Reverse Stock Split. All share and per share amounts and related stockholders’ equity balances presented herein have been retroactively adjusted to reflect the Reverse Stock Split. Liquidity The Company’s principal sources of liquidity are its cash and cash equivalents and short-term investments funded through the Merger and the Velodyne Merger, cash generated from revenues, sales of common stock under its at-the market equity offering program and the Loan Agreement with Hercules Capital, Inc. As of March 31, 2023, the Company’s existing sources of liquidity included cash, cash equivalents and short-term investments of $256.7 million. The Company has incurred losses and negative cash flows from operations for several years. If the Company continues to incur losses in the future, it may need to improve liquidity and raise additional capital through the issuance of equity and/or debt. There can be no assurance that the Company would be able to raise such capital. However, management believes that the Company’s existing sources of liquidity are adequate to fund its operations for at least twelve months from the date the audited consolidated financial statements were available for issuance.