Organization and Nature of Operations	9 Months Ended
Organization and Nature of Operations	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Nature of Operations	Organization and Nature of Operations Overview CS Disco, Inc. (the “Company” or “DISCO”), and wholly owned subsidiary CS Disco Ltd., has built a cloud-native, AI-powered software platform that enterprises, law firms, legal services providers, and governments use for ediscovery, legal document review, and case management in a wide variety of legal matters, ranging from litigation to investigations to compliance to diligence. The Company incorporated as a Delaware corporation on December 2, 2013, and registered CS Disco, Ltd. in the United Kingdom on October 24, 2018. The Company’s headquarters are located in Austin, Texas. Stock Split and Public Offerings In July 2021, the Board of Directors and the stockholders of the Company approved a five-for-one reverse stock split of the Company’s outstanding common stock and preferred stock. The reverse stock split was effective as of July 9, 2021. All common stock, redeemable convertible preferred stock, and per share information has been retroactively adjusted to give effect to this stock split and the adjusted conversion ratios for all periods presented. Shares of common stock underlying outstanding stock options and other equity instruments were proportionally decreased and the respective par value, and exercise prices, if applicable, were proportionately increased in accordance with the terms of the agreements governing such securities. On July 21, 2021, the Company completed the initial public offering (“IPO”) of its common stock pursuant to a Registration Statement on Form S-1. In the IPO, the Company sold an aggregate of 7,500,000 shares of common stock, including 500,000 shares issued pursuant to the underwriters’ option to purchase additional shares at a public offering price of $32.00 per share. The IPO resulted in net proceeds of approximately $223.2 million, after deducting underwriting discounts and commissions of $16.8 million. An existing stockholder sold an additional 200,000 shares of common stock pursuant the underwriters’ option to purchase additional shares of common stock at $32.00 per share. The Company did not receive any proceeds from the sale of shares by the selling stockholder in the IPO. Offering expenses incurred by the Company for the IPO were approximately $3.7 million and were recorded against stockholders’ equity. Upon the completion of the IPO, all outstanding shares of the Company’s redeemable convertible preferred stock were converted into 35,793,483 shares of common stock. On September 17, 2021, the Company completed a secondary public offering of its common stock pursuant to a Registration Statement on Form S-1. In the secondary offering, selling stockholders sold an aggregate of 6,050,000 shares of common stock, including 550,000 shares sold pursuant to the underwriters’ option to purchase additional shares at an offering price of $53.00 per share. The Company did not receive any proceeds from the sale of shares through the secondary offering. Offering expenses incurred by the Company that were not subject to reimbursement were approximately $0.1 million and were recorded as general and administrative expense. The total number of outstanding shares of common stock remained unchanged as a result of the secondary offering.