Document And Entity Information Document Information [Table] Class of Stock [Axis] Class Of Stock [Domain] Class of Stock [Domain] Common Class A [Member] Class A Common Stock Common Class B [Member] Class B Common Stock Information pertaining to units each consisting of one class common stock and one-fifth of one warrant. Unit Each Consisting Of One Class Common Stock And One Fifth Of One Warrant [Member] Units, each consisting of one share of Class A Common Stock and one-fifth of one warrant Information pertaining to Warrants included as part of the units. Warrants Included As Part Of Units [Member] Warrants included as part of the units Document Information [Line Items] Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Title of 12(b) Security Trading Symbol Security Exchange Name Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period Entity Shell Company Entity Public Float Entity Common Stock, Shares Outstanding Period of inception is later than the start of the reporting period. Transition Report BALANCE SHEET Statement [Table] Statement [Line Items] Statement [Line Items] Assets [Abstract] ASSETS Assets, Current [Abstract] Current Assets Cash Cash - End of period Cash - Beginning of period Cash Prepaid Expense, Current Prepaid expenses Assets, Current Total Current Assets Assets Held-in-trust, Noncurrent Cash and marketable securities held in Trust Account Assets TOTAL ASSETS Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Accounts Payable and Accrued Liabilities, Current Current liabilities - accrued expenses Accrued Income Taxes, Noncurrent Income taxes payable The carrying value as of balance sheet of non current portion of deferred underwriting fee payable. Deferred Underwriting Fee Payable Non current Deferred Underwriting Fee Payable Non current Deferred underwriting payable Liabilities Total Liabilities Commitments and Contingencies Commitments Temporary Equity, Carrying Amount, Attributable to Parent Class A common stock subject to possible redemption 199,563,827 shares at redemption value Stockholders' Equity Attributable to Parent [Abstract] Stockholders' Equity Preferred Stock, Value, Issued Preferred stock, $0.0001 par value; 1,000,000 shares authorized; no shares issued and outstanding Common Stock, Value, Issued Common stock value Additional Paid in Capital Additional paid-in capital Retained Earnings (Accumulated Deficit) Accumulated deficit Stockholders' Equity Attributable to Parent Balance Balance Total Stockholders' Equity Liabilities and Equity TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Temporary Equity, Shares Outstanding Class A common stock subject to possible redemption Preferred Stock, Par or Stated Value Per Share Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Common Stock, Par or Stated Value Per Share Par value (in dollars per share) Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Outstanding Common stock, shares, outstanding STATEMENT OF OPERATIONS Operating Expenses Formation and operating costs Operating Income (Loss) Loss from operations Nonoperating Income (Expense) [Abstract] Other income: Investment Income, Interest Interest earned on marketable securities held in Trust Account Marketable Securities, Unrealized Gain (Loss) Unrealized gain on marketable securities held in Trust Account Unrealized gain on marketable securities held in Trust Account Nonoperating Income (Expense) Other income Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Loss before provision for income taxes Income Tax Expense (Benefit) Provision for income taxes Income tax provision Net Income (Loss) Attributable to Parent Net loss Net Loss Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS), attributable to temporary equity. Temporary Equity, Weighted Average Number of Shares Outstanding, Basic and Diluted Basic and diluted weighted average shares outstanding, Class A Common stock subject to possible redemption The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements, attributable to temporary equity. Temporary Equity, Earnings Per Share, Basic and Diluted Basic and diluted net income per share, Class A common stock subject to possible redemption Weighted Average Number of Shares Outstanding, Basic and Diluted Basic and diluted weighted average shares outstanding, Non-redeemable common stock Earnings Per Share, Basic and Diluted Basic and diluted net loss per share, Non-redeemable common stock STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Additional Paid In Capital [Member] Additional Paid in Capital Retained Earnings [Member] Accumulated Deficit Shares, Outstanding Balance (in shares) Balance (in shares) Stock Issued During Period, Value, New Issues Values of shares issued Issuance of Class B common stock Stock Issued During Period, Shares, New Issues Number of shares issued Issuance of Class B common stock (in shares) Stock issued during period, shares, new issues Amount represents the value of stock issued, sale of units net of underwriting discount and offering expenses. Stock Issued Sale of Units Net Of Underwriting Discount and Offering Expenses Value Sale of 207,000,000 Units, net of underwriting discounts It represents the number of shares issued by sale of units net of underwriting discount and offering expenses. Stock Issued Sale of Units Net Of Underwriting Discount and Offering Expenses Shares Sale of 207,000,000 Units, net of underwriting discounts (in shares) Adjustments to Additional Paid in Capital, Warrant Issued Sale of 42,850,000 Private Placement Warrants Equity impact of shares subject to possible redemption. Shares Subject to Possible Redemption, Value Class A common stock subject to possible redemption Number of shares subject to possible redemption. Shares Subject to Possible Redemption, Shares Class A common stock subject to possible redemption (in shares) Partners' Capital Account, Units, Sale of Units Number of warrants for common stock issued. Warrants Issued During Period, Shares, Warrants Sale of Private Placement Warrants (in shares) STATEMENT OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities [Abstract] Cash Flows from Operating Activities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Interest Earned On Marketable Securities Held In Trust Account Interest Earned On Marketable Securities Held In Trust Account Interest earned on marketable securities held in Trust Account Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Prepaid Expense Prepaid expenses Increase (Decrease) in Accrued Liabilities Accrued expenses Increase (Decrease) in Income Taxes Payable Income taxes payable Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash Flows from Investing Activities: Payments to Acquire Restricted Investments Investment of cash in Trust Account Amount of cash inflows from the cash withdrawn from trust account to pay expenses. Proceeds From Cash Withdrawn From Trust Account Cash withdrawn from Trust Account to pay taxes Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash Flows from Financing Activities: Proceeds from Issuance of Common Stock Proceeds from issuance of Class B common stock to Sponsor Proceeds from Issuance Initial Public Offering Proceeds from Issuance Initial Public Offering Proceeds from sale of Units, net of underwriting discounts paid Proceeds from Issuance of Warrants Sale of 42,850,000 private placement warrants Proceeds from sale of Private Placement Warrants Proceeds from Related Party Debt Amounts borrowed Proceeds from promissory note - related party Repayments of Related Party Debt Repayment of promissory note - related party Repayment of promissory note - related party Payments of Stock Issuance Costs Payment of offering costs Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net Change in Cash Noncash Investing and Financing Items [Abstract] Non-Cash investing and financing activities: Initial classification of common stock subject to redemption classified in non cash or part non cash transaction. Initial Classification Of Common Stock Subject To Redemption Initial classification of Class A common stock subject to possible redemption Change in value of common stock subject to redemption classified in non cash or part non cash transaction. Change In Value Of Common Stock Subject To Redemption Change in value of Class A common stock subject to possible redemption Liabilities Assumed Deferred underwriting fee payable DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES n/a. PUBLIC OFFERING Initial Public Offering[Text Block] Initial Public Offering [Text Block] PUBLIC OFFERING n/a. PRIVATE PLACEMENT Private Placement[Text Block] Private Placement [Text Block] PRIVATE PLACEMENT RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] RELATED PARTY TRANSACTIONS COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] COMMITMENTS STOCKHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] STOCKHOLDERS' EQUITY INCOME TAX Income Tax Disclosure [Text Block] INCOME TAX FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] FAIR VALUE MEASUREMENTS SUBSEQUENT EVENTS Subsequent Events [Text Block] SUBSEQUENT EVENTS Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Start-up Activities, Cost Policy [Policy Text Block] Emerging Growth Company Use of Estimates, Policy [Policy Text Block] Use of Estimates Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents Disclosure of accounting policy for marketable securities held in trust account. Marketable Securities Held In Trust Account [Policy Text Block] Marketable Securities Held in Trust Account Shares Subject to Mandatory Redemption, Changes in Redemption Value, Policy [Policy Text Block] Common Stock Subject to Possible Redemption Income Tax, Policy [Policy Text Block] Income Taxes Earnings Per Share, Policy [Policy Text Block] Net Income (Loss) per Common Share Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentration of Credit Risk Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value of Financial Instruments New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Standards Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of basic and diluted loss per common share Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Company's net deferred tax asset Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of components of Company's income tax provision Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of reconciliation of the federal income tax rate to the Company's effective tax rate Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of assets measured at fair value on a recurring basis Business Acquisition [Axis] Business Acquisition Acquiree [Domain] Business Acquisition, Acquiree [Domain] Churchill Sponsor LLC Churchill Sponsor L L C [Member] Churchill Sponsor LLC [Member] Sale of Stock [Axis] Sale Of Stock Name Of Transaction [Domain] Sale of Stock [Domain] I P O [Member] IPO Over Allotment Option [Member] Over-Allotment Option Private Placement [Member] Private Placement Number of subsidiaries of the company. Number Of Subsidiaries Number of subsidiaries Shares Issued, Price Per Share Shares issued, price per share The number of warrants issued during the period. Number Of Warrants Issued Number Of warrants issued Class of Warrant or Right, Exercise Price of Warrants or Rights Exercise price of warrants Class of warrant or right, exercise price of warrants or rights The amount represents the cost incurred for stock issuance. Transaction Cost Related To Issuance Of Common Stock Transaction Cost Related To Issuance Of Common Stock The amount represents the underwriting fees incurred for stock issuance. Underwriting Fees Underwriting Fees The amount of other costs incurred during the issuance of stock. Other Costs Related To Issuance Of Common Stock Other Costs Related To Issuance Of Common Stock Maximum working capital requirement to pay tax obligations Working Capital Requirement Fund Annual Limit Working Capital Requirement Fund Annual Limit Represents the percentage of aggregate fair market value of business combination to assets held in trust. Business Combination Aggregate Fair Market Value On Assets Held In Trust Percentage Business Combination Aggregate Fair Market Value On Assets Held In Trust Percentage Temporary Equity, Redemption Price Per Share Temporary Equity, Redemption Price Per Share Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets The maximum percentage of ordinary shares issued that are allowed to be redeemed. Maximum Percentage Of Shares Eligible From Redemption Maximum Percentage Of Shares Eligible From Redemption The aggregate amount of dissolution expenses payable. Dissolution Expenses Payable Dissolution Expenses Payable It represents of portion of amount used working capital Working capital Amount of cash invested in to trust account. Cash Invested in to Trust Account Amount deposited in trust account Amount of maximum borrowing capacity of related party promissory note. Maximum Borrowing Capacity Of Related Party Promissory Note Maximum borrowing capacity of related party promissory note Amount of interest earned on Trust Account withdrawn during the period for working capital purposes. Interest Earned On Trust Account Withdrawn Interest earned on the Trust Account withdrawn for working capital purposes. Unrecognized Tax Benefits Unrecognized Tax Benefits Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Represents the information pertaining to business interest limitation percentage. Business Interest Limitation Percentage Business interest limitation, percentage Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Cash, FDIC Insured Amount No definition available. Temporary Equity, Earnings Per Share, Basic and Diluted Calculation [Abstract] Class A Common Stock Subject to Possible Redemption No definition available. Numerator For Calculation Of Earnings Per Share [Abstract] Numerator: Earnings allocable to Class A common stock subject to possible redemption Amount of interest income, attributable to temporary equity. Temporary Equity, Attributable Interest Income Interest income Amount of unrealized gain (loss) on investments held in trust account, attributable to temporary equity. Temporary Equity, Attributable Unrealized Gain (Loss) On Investments Held In Trust Account Unrealized gain on investments held in Trust Account Amount of adjustments for Company's portion available to be withdrawn for payment of taxes. Adjustments For Company's Portion Available To Be Withdrawn To Pay Taxes Less: Company's portion available to be withdrawn to pay taxes Amount of adjustments for Company's portion available to be withdrawn for working capital purposes. Adjustments For Company's Portion Available To Be Withdrawn For Working Capital Purposes Less: Company's portion available to be withdrawn for working capital purposes Temporary Equity, Net Income Net income allocable to Class A common stock subject to possible redemption No definition available. Denominator For Calculation Of Earnings Per Share [Abstract] Denominator: Weighted average Class A common stock subject to possible redemption Earnings Per Share [Abstract] Non-Redeemable Common Stock Numerator: Net loss minus net earnings Net Income (Loss) Available to Common Stockholders, Basic Non-redeemable net loss No definition. Denominator Weighted Average Non Redeemable Common Stock [Abstract] Denominator: Weighted average non-redeemable common stock Price of a single unit. Unit Price Unit price Represents the number of shares in a unit. Number Of Shares Issued Per Unit Number of shares in a unit Represents the number of warrants in a unit. Number Of Warrants Issued Per Unit Number of warrants in a unit Class of Warrant or Right, Number of Securities Called by Each Warrant or Right Number of shares issuable per warrant Class of Warrant or Right, Number of Securities Called by Warrants or Rights Number of warrants issued Schedule of Related Party Transactions, by Related Party [Table] Related Party [Axis] Related Party [Domain] Related Party [Domain] Sponsor [Member] Sponsor [Member] Sponsor This member stands for administrative support agreement. Administrative Support Agreement [Member] Administrative Support Agreement Represents the per share equivalent of common stock issued as a stock dividend. Dividends Common Stock Dividends Per Share Common stock dividends per share Number of shares effected common stock dividend share. Effected Common Stock Dividend Share Effected common stock dividend share Weighted Average Number of Shares, Common Stock Subject to Repurchase or Cancellation Weighted average number of shares, common stock subject to repurchase or cancellation Equity Method Investment, Ownership Percentage Equity method investment, ownership percentage Share Price Share price Management Fee Expense Management fee expense Related Party Transaction, Expenses from Transactions with Related Party Fees incurred for services Expenses related to public offering costs Initial Public Offering Cost Initial public offering cost Debt Conversion, Original Debt, Amount Debt conversion, original debt, amount Debt Instrument, Convertible, Conversion Price Conversion price The deferred Underwriting fee payable per unit. Deferred Underwriting Fees Payable Per Unit Deferred Underwriting Fees Payable Per Unit The carrying value of deferred underwriting fee payable. Deferred Underwriting Fees Payable Deferred Underwriting Fees Payable No definition available Deferred Underwriting Discount Shares Deferred Underwriting Discount Shares Reduction of upfront underwriting payment Deferred Underwriting Upfront Payment Deferred Underwriting Upfront Payment It represents of reimbursement expenses. Reimbursement of expenses payable Reimbursement of expenses payable Legal Fees Legal fees The number of votes that each common share is entitled. Common Stock, Number Of Votes Per Share Common shares, votes per share The warrants exercisable term after the completion of a business combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Warrants And Rights Outstanding, Exercisable Term After Business Combination Public Warrants exercisable term after the completion of a business combination The warrants exercisable term from the closing of the initial public offering, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Warrants And Rights Outstanding, Exercisable Term From Closing Of Initial Public Offering Public Warrants exercisable term from the closing of the initial public offering Expiration period of warrants. Class of Warrant or Right Warrants Expiration Period Represents the redemption price of outstanding warrants. Class of Warrant or Right Warrants Redemption Price Components of Deferred Tax Assets [Abstract] Deferred tax asset Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from startup/organizational expenses. Deferred Tax Assets, Startup And Organizational Expenses Startup/organizational expenses The amount of unrealized marketable securities Unrealized Gain On Marketable Securities Unrealized gain on marketable securities Deferred Tax Assets, Gross Total deferred tax asset Deferred Tax Assets, Valuation Allowance Valuation Allowance Deferred Tax Assets, Net of Valuation Allowance Deferred tax asset, net of allowance Federal Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) Current Deferred Federal Income Tax Expense (Benefit) Deferred Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Change in valuation allowance Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Statutory federal income tax rate Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent State taxes, net of federal tax benefit Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Valuation allowance Effective Income Tax Rate Reconciliation, Percent Income tax provision Fair Value, Recurring and Nonrecurring [Table] Fair Value Hierarchy and NAV [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Fair Value Inputs Level1 [Member] Level 1 Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Investments, Fair Value Disclosure Marketable securities held in Trust Account Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event Subsequent Event [Line Items] Payments to Acquire Businesses, Gross Consideration Number of business days prior to closing date considered for determination of Equity Value of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Number Of Business Days Considered For Determination Of Equity Value Number of business days prior to closing date considered for determination of Equity Value Business Acquisition, Share Price Merger consideration (in dollars per share) Amount of fee payable to service provider upon the consummation of a Business Combination. Fee Payable To Service Provider Upon Consummation Of Business Combination Fee payable to service provider upon the consummation of a Business Combination Amount of fee payable to service provider upon the consummation of financing. Fee Payable To Service Provider Upon Consummation Of Financing Fee payable to service provider upon consummation of the financing Threshold maximum out-of-pocket expenses that the service provider is authorized to spend without prior approval. Threshold Maximum Amount Of Out Of Pocket Expenses Threshold maximum out-of-pocket expenses Maximum amount of Loans that may be convertible into warrants of the post-Business Combination entity. Maximum Loans Convertible Into Warrants Maximum loans convertible into warrants Per unit price of warrants issued by the company. Warrants Price Per Unit Price of warrants (in dollars per share) Common Stock [Member] Common Stock Scenario [Axis] Scenario Unspecified [Domain] Scenario, Unspecified [Domain] This member stands for the scenario, if underwriters do not exercise overallotment option. If Underwriters Do Not Exercise Overallotment Option [Member] If Underwriters Do Not Exercise Overallotment Option [Member] Measurement Frequency [Axis] Fair Value Measurement Frequency [Domain] Measurement Frequency [Domain] Fair Value Measurements Recurring [Member] Recurring This member stands for Merger Agreement with Merger Sub and Atieva. Merger Agreement With Merger Sub And Atieva [Member] Merger Agreement with Merger Sub and Atieva Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Arrangements And Nonarrangement Transactions [Member] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Represents the information pertaining to common stock subscription agreements. Common Stock Subscription Agreements [Member] Common Stock Subscription Agreements Represents the information pertaining to PIPE investors Private Investment In Public Equity Investors [Member] PIPE Investors Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] This member stands for convertible promissory note with related party. Convertible Promissory Note With Related Party [Member] Convertible promissory note with Sponsor