Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Dec. 17, 2021
Entity Listings [Line Items]
Document Type	10-Q/A
Amendment Flag	true
Amendment Description	Climate Real Impact Solutions II Acquisition Corporation (the “Company,” “we”, “our” or “us”) is filing this Quarterly Report on Form 10-Q/A (“Amendment No. 1” or the “Amendment”), or this Quarterly Report, to amend our Quarterly Report on Form 10-Q for the quarter ended September 30, 2021, originally filed with the Securities and Exchange Commission, or the SEC, on November 15, 2021 (the “Original Filing”), to restate certain of our financial statements (collectively, the “Original Financial Statements”) as a result of a reclassification error related to temporary equity and permanent equity described in more detail below. The Company has re-evaluated the Company’s application of ASC 480-10-S99-3A to its accounting classification of the redeemable Class A common stock, par value $0.0001 per share (the “Public Shares”), issued as part of the units sold in the Company’s initial public offering (the “Initial Public Offering”) on January 29, 2021. Historically, a portion of the Public Shares were classified as permanent equity to maintain stockholders’ equity greater than $5 million on the basis that the Company will not redeem its Public Shares in an amount that would cause its net tangible assets to be less than $5,000,001, as described in the Company’s amended and restated certificate of incorporation (the “Charter”). Pursuant to such re-evaluation, the Company’s management has determined that the Public Shares include certain provisions that require classification of all of the Public Shares as temporary equity regardless of the net tangible assets redemption limitation contained in the Charter. In addition, in connection with the change in presentation for the Public Shares, the Company determined it should restate its earnings per share calculation to allocate income and losses shared pro rata between its two classes of common stock. This presentation contemplates a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses (the “Business Combination”) as the most likely outcome, in which case, both classes of common stock share pro rata in the income and losses of the Company. On December [ ], 2021, the Audit Committee of the Board of Directors of the Company (the “Audit Committee”) concluded, after discussion with the Company’s management, that the Company’s previously issued (i) audited balance sheet as of January 29, 2021 (the “IPO Balance Sheet”) included in the Company’s Form 8-K, filed with the SEC on February 4, 2021; (ii) unaudited interim financial statements as of and for the quarterly period ended March 31, 2021 included in the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2021, filed with the SEC on May 24, 2021; (iii) unaudited interim financial statements as of and for the three and six months ended June 30, 2021 (the “Q2 2021 Financial Statements”) included in the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2021, filed with the SEC on August 12, 2021 and (iv) unaudited interim financial statements as of and for the three and nine months ended September 30, 2021 included in the Company’s Original Filing, filed with the SEC on November 15, 2021 (collectively, the “Affected Periods”), should be restated to report all Public Shares as temporary equity and should no longer be relied upon. As such, the Company is restating the Company’s financial statements for the Affected Periods in this Form 10-Q/A. The restatement does not have an impact on the Company’s cash position. The financial information that has been previously filed or otherwise reported for this period is superseded by the information in this Form 10-Q/A, and the financial statements and related financial information contained in the Original Quarterly Report should no longer be relied upon. On December [ ], 2021, the Company filed a Current Report on Form 8-K disclosing the Audit Committee’s conclusion that the unaudited interim financial statements for the Affected Periods should no longer be relied upon.
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Document Transition Report	false
Entity File Number	001-39572
Entity Registrant Name	CLIMATE REAL IMPACT SOLUTIONS II ACQUISITION CORP
Entity Central Index Key	0001835713
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	85-4141622
Entity Address, Address Line One	300 Carnegie Center
Entity Address, Address Line Two	Suite 150
Entity Address, City or Town	Princeton
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	08540
City Area Code	212
Local Phone Number	847-0360
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	true
Units [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Units, each consisting of one share of Class A common stock, $0.0001 par value, and one-fifth of one redeemable warrant
Trading Symbol	CLIM.U
Security Exchange Name	NYSE
Redeemable Warrants [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Redeemable warrants included as part of the units, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50
Trading Symbol	CLIM WS
Security Exchange Name	NYSE
Class A Common Stock [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Shares of Class A common stock included as part of the units
Trading Symbol	CLIM
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		24,150,000
Class B Common Stock [Member]
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		6,037,500