Insider Trading Arrangements [Line Items] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Additional paid-in capital CONSOLIDATED CONDENSED BALANCE SHEETS [Abstract] Basic net income (loss) per share (in dollars per share) Basic net income per ordinary share (in dollars per share) Earnings Per Share, Basic Cash and Cash Equivalents [Abstract] Cash and Cash Equivalents Cash equivalents Cash Equivalents, at Carrying Value Underwriting expense Accounts payable Increase (Decrease) in Accounts Payable, Trade Changes in operating assets and liabilities: Due to related party Accrued expenses Increase (Decrease) in Accrued Liabilities Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Class B Ordinary Shares [Member] Ordinary shares, shares authorized (in shares) Ordinary shares, shares issued (in shares) Ordinary shares, shares outstanding (in shares) Common stock Common Stock, Value, Issued Convertible promissory note - related party Working capital loan outstanding amount Convertible promissory note Borrowings outstanding Total current liabilities Liabilities, Current Current liabilities: Principal amount Borrowings Capacity Debt instrument, percentage Diluted net income (loss) per share (in dollars per share) Diluted net income per ordinary share (in dollars per share) Earnings Per Share, Diluted Principles of Consolidation Financial Instruments Cash held in Trust Account Asset, Held-in-Trust, Noncurrent General and administrative expenses Initial Public Offering [Member] IPO [Member] UNAUDITED CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS [Abstract] Accrued interest and penalties Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Income Taxes Trust Account Investment, Policy [Policy Text Block] Total liabilities Liabilities Total Liabilities and Shareholders' Deficit Liabilities and Equity Liabilities and Shareholders' Deficit Loss Contingencies [Line Items] Loss Contingencies [Table] Related Party, Type [Axis] Related Party [Axis] Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Cash Flows from Financing Activities: Net cash provided by financing activities Net Cash Provided by (Used in) Investing Activities Cash Flows from Investing Activities: Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Cash Flows from Operating Activities: Net income (loss) Net income (loss) Income (loss) from operations Operating Income (Loss) Income (Loss) from operations Description of Organization and Business Operations Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Preference shares, shares authorized (in shares) Preference shares, shares issued (in shares) Preference shares, shares outstanding (in shares) Preference shares, par value (in dollars per share) Prepaid expenses Private Placement [Member] Proceeds from convertible promissory note - related party Proceeds from issuance of common stock Initial Public Offering and Private Placement [Abstract] Proceeds from Issuance or Sale of Equity [Abstract] Gross proceeds from initial public offering Gross proceeds Proceeds from Issuance Initial Public Offering Gross proceeds from private placement Proceeds from Issuance of Private Placement Aggregate amount drawn Loan for an aggregate deposit Loan proceeds Cash deposited in Trust Account Cash deposited in Trust Account Net proceeds from Initial Public Offering and Private Placement deposited in Trust Account Payments to Acquire Marketable Securities Related Party, Type [Domain] Related Party [Domain] Related party transaction Related Party Transaction [Line Items] Related Party Transactions Schedule of Related Party Transactions, by Related Party [Table] Accumulated deficit Sale of Stock [Domain] UNAUDITED CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS [Abstract] UNAUDITED CONSOLIDATED CONDENSED STATEMENTS OF CHANGES IN SHAREHOLDERS' DEFICIT [Abstract] Shareholders' Deficit: Stockholders' Deficit [Abstract] Shareholders' Deficit Subsequent Event Type [Axis] Subsequent Event [Line Items] Subsequent Event [Table] Subsequent Event Type [Domain] Sale of Stock [Axis] Subsidiary, Sale of Stock [Line Items] Total current assets Assets, Current Current assets: U.S. Treasury Securities [Member] Unrecognized tax benefits Unrecognized Tax Benefits PIPE Warrants [Member] Warrant [Member] Diluted weighted average shares outstanding (in shares) Diluted weighted average shares outstanding (in shares) Basic weighted average shares outstanding (in shares) Basic weighted average shares outstanding (in shares) Sponsor [Member] Sponsor [Member] Ordinary Shares [Member] New Adagio Common Stock [Member] Cash Cash at bank Total Assets Assets Due to related party Other Liabilities, Current Financial Instruments [Domain] Statement [Table] Assets Assets [Abstract] Statement [Line Items] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Quoted Prices in Active Markets (Level 1) [Member] Shareholders' Deficit [Abstract] Common stock subject to possible redemption [Abstract] Other Liabilities and Financial Instruments Subject to Mandatory Redemption [Abstract] Fair Value Measurements Temporary equity, shares issued (in shares) Temporary Equity, Shares Issued Ordinary shares subject to possible redemption (in shares) Temporary Equity, Shares Outstanding Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Class of Stock [Domain] Class A Ordinary Shares [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Net Income Per Ordinary Share Earnings Per Share, Policy [Policy Text Block] Class of Stock [Axis] Ordinary shares, par value (in dollars per share) Offering Costs Associated with the Initial Public Offering Deferred Charges, Policy [Policy Text Block] Voting rights per share Total shareholders' deficit Beginning balance Ending balance Equity, Attributable to Parent Preference shares, $0.0001 par value; 1,000,000 shares authorized; none issued or outstanding as of March 31, 2024 and December 31, 2023 Equity Components [Axis] Additional Paid-in Capital [Member] Accumulated Deficit [Member] Equity Component [Domain] Interest earned on cash and investments held in Trust Account Interest earned on cash and investments held in Trust Account Deferred offering costs associated with initial public offering Offering costs allocated to Class A ordinary shares subject to possible redemption Shares issued (in shares) Stock Issued During Period, Shares, New Issues Number of shares redeemed (in shares) Denominator [Abstract] Class of Stock [Line Items] Schedule of Stock by Class [Table] Commitments and Contingencies Adjustments to reconcile net income to net cash used in operating activities: Accounts payable Accrued expenses Accrued Liabilities, Current Numerator [Abstract] Net Income (Loss) Attributable to Parent [Abstract] Allocation of net income Basic and Diluted Net Income Per Ordinary Share [Abstract] Ordinary shares subject to possible redemption, redemption price (in dollars per share) Temporary Equity, by Class of Stock [Table] Temporary Equity [Line Items] Ordinary shares, par value (in dollars per share) Temporary Equity, Par or Stated Value Per Share Accretion on Class A ordinary shares subject to possible redemption amount Fair Value Hierarchy and NAV [Domain] Asset Class [Domain] Summary of Significant Accounting Policies Description of Organization and Business Operations [Abstract] Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Class A Ordinary Shares Subject to Possible Redemption Asset Class [Axis] Fair Value Hierarchy and NAV [Axis] Commitments and Contingencies [Abstract] Income Taxes [Abstract] Income Tax Disclosure [Abstract] Fair Value Measurements [Abstract] Subsequent Events Subsequent Events [Text Block] Use of Estimates Investments held in Trust Account [Abstract] Assets, Fair Value Disclosure [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Level 3 Inputs Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Summary of Significant Accounting Policies [Abstract] Class A Ordinary Shares Subject to Possible Redemption [Abstract] Related Party Transactions [Abstract] Subsequent Events [Abstract] Conversion value Shares forfeited (in shares) Basic and Diluted Net (Loss) Income Per Ordinary Share Basis of Presentation Share price (in dollars per share) Financial Instrument [Axis] Class A ordinary shares, $0.0001 par value; 3,300,016 and 3,690,831 shares subject to possible redemption at approximately $11.22 and $10.97 per share as of March 31, 2024 and December 31, 2023, respectively Temporary equity, carrying amount Class A ordinary shares subject to possible redemption Subsequent Event [Member] Recent Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Concentration of Cash Balances Shares issued (in shares) Stock Issued During Period, Shares, Issued for Services Fair Value Measurements [Abstract] Fair Value Measurement Inputs and Valuation Techniques [Abstract] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Conversion price (in dollars per share) Conversion price (in dollars per share) Prepaid expenses Increase (Decrease) in Prepaid Expenses, Other Share price (in dollars per share) Shares Issued, Price Per Share Term of debt Related Party Transaction [Axis] Related Party Transaction [Domain] Over-Allotment Option [Member] Exercise price of pre-funded warrants (In dollars per share) Net change in cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Cash - beginning of the period Cash - end of the period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Measurement Input Type [Axis] Strike Price [Member] Measurement Input, Exercise Price [Member] Term [Member] Measurement Input, Expected Term [Member] Average Volatility Rate [Member] Measurement Input, Price Volatility [Member] Base Share Price [Member] Measurement Input, Share Price [Member] Measurement Input Type [Domain] Measurement input Warrants and Rights Outstanding, Measurement Input Measurement input Equity Securities, FV-NI, Measurement Input Investment maturity period Debt Securities, Available-for-Sale, Term Term Warrants and Rights Outstanding, Term Other Liability, Current, Related Party, Type [Extensible Enumeration] Notes Payable, Current, Related Party, Type [Extensible Enumeration] Statistical Measurement [Axis] Statistical Measurement [Domain] Maximum [Member] Minimum [Member] Document Type Document Quarterly Report Document Transition Report Entity Interactive Data Current Amendment Flag Amendment Description Document Fiscal Year Focus Document Fiscal Period Focus Document Period End Date Entity Registrant Name Entity Central Index Key Entity File Number Entity Tax Identification Number Entity Incorporation, State or Country Code Current Fiscal Year End Date Entity Current Reporting Status Entity Shell Company Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Entity Listings [Table] Entity Listings [Line Items] Title of 12(b) Security Trading Symbol Security Exchange Name Entity Common Stock, Shares Outstanding The amount of gain (loss) from the extinguishment of deferred underwriting commissions. Extinguishment of Deferred Underwriting Commissions Waiver of deferred underwriting commissions Common Stock Subject to Possible Redemption [Abstract] The entire disclosure for Class A ordinary shares subject to possible redemption reflected on the condensed balance sheet. Class A Ordinary Shares Subject to Possible Redemption [Text Block] Class A Ordinary Shares Subject to Possible Redemption Period of time private Placement Shares are not be transferable or salable until after the completion of the initial Business Combination, subject to limited exceptions, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Class of Shares Holding Period Holding period for transfer, assignment or sale of shares Private Placement [Abstract] Private Placement [Abstract] The period of time after the completion of initial business combination that initial shareholders are not permitted to transfer, assign or sell any of their held Founder Shares, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Period of Restriction for Founder Shares for Initial Shareholders Period to not transfer, assign or sell Founder Shares Sponsor and officers and directors assigned to serve the Company. Sponsor and Company Officers and Directors [Member] Sponsor and Company Officers and Directors [Member] Independent directors nominated for serving the entity. Independent Director Nominees [Member] Independent Directors [Member] Number of common stock shares subject to forfeiture in the event of the over-allotment option was not exercised by the underwriters. Common Stock, Shares, Subject to Forfeiture Shares subject to forfeiture (in shares) Number of common stock shares no longer subject to forfeiture and fully exercised by the underwriters. Common Stock, Shares, No Longer Subject to Forfeiture Number of shares no longer subject to forfeiture (in shares) The ownership interest percentage threshold for the Company's issued and outstanding shares after the Initial Public Offering for the Founder Shares. Ownership Interest Percentage Threshold Ownership interest, as converted percentage Founder Shares [Abstract] Founder Shares [Abstract] ARYA Sciences Holdings II (Sponsor), an affiliate of the Sponsor, or certain of the Company's officers and directors. Sponsor Affiliate of Sponsor or Certain Company Officers and Directors [Member] Sponsor Affiliate of Sponsor or Certain Company Officers and Directors [Member] Amount of the periodic payment due to related party during the financial reporting period. Related Party Transaction, Periodic Payment Amount Monthly fee Administrative Support Agreement [Abstract] Administrative Support Agreement [Abstract] The amount of loan under the first convertible promissory note will be convertible at the option of our sponsor into Working Capital Shares. First Convertible Promissory Note To Cover Expenses Related To Working Capital Shares [Member] First Convertible Promissory Note [Member] An agreement whereby, on the effective date of the registration statement on Form S-1 related to the Initial Public Offering through the earlier of consummation of the initial Business Combination and the Company's liquidation, the Company will pay a monthly fee for office space, utilities and secretarial and administrative support. Administrative Support Agreement [Member] Administrative Support Agreement [Member] Loan of up to $300,000 to cover expenses related to the Initial Public Offering pursuant to a promissory note (Note). The Note was non-interest bearing and payable on the earlier of June 30, 2018 or the completion of the Initial Public Offering. Promissory Note to Cover Expenses Related to Initial Public Offering [Member] Promissory Note [Member] Working capital loans to finance transaction costs in connection with a Business Combination. Working Capital Loans [Member] Working Capital Loans [Member] Period of hold an annual meeting of shareholders to complete Business Combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Period of Annual Shareholders Meeting of Held Period of annual shareholders meeting to be held The amount of loan under the first and second convertible promissory note will be convertible at the option of our sponsor into Working Capital Shares. Convertible Promissory Note [Member] The additional cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates. Additional Proceeds From Related Party Debt Additional amount drawn Period of time from closing of Initial Public Offering to complete Business Combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Period to Complete Business Combination from Closing of Initial Public Offering Period to complete business combination from closing of initial public offering Number of operating businesses days prior to completion of initial Business Combination. Number of Business Days Prior to Completion of Business Combination Number of business days prior to completion of business combination Related Party Loans [Abstract] Related Party Loans [Abstract] Disclosure of accounting policy for shares subject to possible redemption. Shares Subject to Possible Redemption [Policy Text Block] Class A Ordinary Shares Subject to Possible Redemption The amount of loan under the first, second and third convertible promissory note will be convertible at the option of our sponsor into Working Capital Shares. First, Second and Third Convertible Promissory Note To Cover Expenses Related To Working Capital Shares [Member] First, Second and Third Convertible Promissory Note [Member] The amount of deferred offering costs paid by sponsor in exchange for ordinary shares in noncash financing activities. Deferred Offering Costs Paid by Sponsor in Exchange for Issuance of Ordinary Shares Offering costs paid by sponsor in exchange for issuance of founder shares The amount of difference between current assets and liabilities. Working Capital Working capital Going Concern [Abstract] Going Concern [Abstract] The amounts loaned under the third convertible promissory note will be convertible at the option of our sponsor into working capital shares. Third Convertible Promissory Note [Member] Third Convertible Promissory Note [Member] Fair market value as a percentage of the net assets held in the Trust Account (excluding the deferred underwriting commissions and taxes payable on the income earned on the Trust Account) at the time of the agreement to enter into the initial Business Combination. Fair Market Value as Percentage of Net Assets Held in Trust Account Included in Initial Business Combination Fair market value as percentage of net assets held in Trust Account included in initial Business Combination Number of operating businesses that must be included in initial Business Combination. Number of Operating Businesses Included in Initial Business Combination Number of operating businesses included in initial Business Combination Percentage of Public Shares that would not be redeemed if a Business Combination is not completed within the Initial Combination Period. Percentage of Public Shares That Would not be Redeemed if Business Combination is not Completed Within Initial Combination Period Percentage of Public Shares that would not be redeemed if Business Combination is not completed within Initial Combination Period Period of time to cease operations if a Business Combination is not completed within Combination Period in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Period to Cease Operations if Business Combination is not Completed within Combination Period Period to cease operations if Business Combination is not completed within Combination Period Per-share amount of net proceeds deposited in the Trust Account upon closing of the Proposed Public Offerings and Private Placement. Cash Deposited in Trust Account Per Unit Unit price, Proposed Public Offering and Private Placement (in dollars per unit) Post-transaction ownership percentage of the outstanding voting securities of the target business sufficient for it not to be required to register as an investment company under the Investment Company Act of 1940. Post Transaction Ownership Percentage of The Target Business Post-transaction ownership percentage of the target business Interest received on the Trust Account that can be used to pay dissolution expenses if a Business Combination is not completed with the Combination Period. Interest on Trust Account to be held to pay dissolution expenses Interest from Trust Account that can be held to pay dissolution expenses Percentage of Public Shares that can be redeemed without the prior consent of the Company. Percentage of Public Shares That can be Redeemed Without Prior Consent Percentage of Public Shares that can be redeemed without prior consent Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Organization and Business Operations [Line Items] Security that gives the holder the right to purchase Private Placement Shares. Private Placement Units [Member] Private Placement Units [Member] Disclosure of information about the Company's organization and business operations. Organization and Business Operations [Table] Purchase Price ratio as defined in the Subscription Agreement. Purchase Price Ratio Purchase Price Ratio Estimated number of warrants to be issued on the Close of the Transaction. Warrants to be Issued on Close of Transaction PIPE Warrants to be issued on Close of Transaction Estimated number of shares of common stock to be issued on the Close of the Transaction. Shares to be Issued on Close of Transaction Shares to be issued on Close of Transaction Fair value per share. Equity Securities, FV-NI, Fair Value per Share Fair value per Share at Closing Measurement input using the probability of closing. Measurement Input, Probability of Closing [Member] Probability of Closing [Member] Measurement input using adjusted share price of stock. Measurement Input, Adjusted Share Price [Member] Adjusted Share Price [Member] Measurement input using adjusted share price of stock with a purchase price ratio of 1.2x. Measurement Input, Adjusted Share Price for Purchase Price Ratio [Member] Adjusted Share Price (1.2X Purchase Price Ratio) [Member] Fair value per warrant. Warrants and Rights Outstanding, Fair Value Fair value per Warrant at Closing Coverage ratio as defined in the Subscription Agreement. Coverage Ratio Coverage Ratio Measurement input using estimated expected warrant price. Measurement Input, Warrant Price [Member] Estimated Expected Warrant Price [Member] The cash price per share of the conversion feature embedded in the debt instrument. Debt Instrument, Convertible, Cash Price Cash price (in dollars per share) The convertible security financing is contingent upon, among other things, the substantially concurrent closing. Convertible Security Financing [Member] Convertible Security Financing [Member] The number of shares issued during the period for cashless exercise of warrants. Stock Issued During Period Shares Cashless Exercise of Warrants Cashless exercise of warrants issued (in shares) Minimum trading days as defined in Convert Registration Rights Agreement in in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Convert Registration Rights Agreement, Trading Days Number of trading days under convert registration rights agreement Convertible Security Financing (Private Placement) and Convert Registration Rights Agreement [Abstract] Convertible Security Financing (Private Placement) and Convert Registration Rights Agreement [Abstract] The amounts loaned under the fourth convertible promissory note will be convertible at the option of our sponsor into working capital shares. Fourth Convertible Promissory Note [Member] Fourth Convertible Promissory Note [Member] Purchase agreement, dated February 13, 2024, by and among the Perceptive PIPE Investor, Adagio and ListCo . Bridge Financing Notes 2024 [Member] 2024 Bridge Financing Notes [Member] The note includes Perceptive Convertible Note Commitment and includes the conversion of the 2024 Bridge Financing Note. New Adagio Convertible Notes [Member] New Adagio Convertible Notes [Member] Loan of up to $1,380,000 of the amounts loaned under the Second Convertible Promissory Note will be convertible at the option of our sponsor into Working Capital Shares. Second Convertible Promissory Note [Member] Second Convertible Promissory Note [Member] The number of times permitted to extend period of time to consummate a Business Combination. Number of Extensions to Extend Time to Consummate Business Combination Number of times to extend period to consummate Business Combination Security that gives the holder the right to purchase Private Placement Shares. Private Placement Shares [Member] Private Placement Shares [Member] The amended and restated memorandum agreement made between the third party. Amended And Restated Memorandum [Member] Amended and Restated Memorandum [Member] The period of time for each extension to consummate a Business Combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Period of Time of Extension to Consummate Business Combination Period of time for an extension to consummate Business Combination Period to provide advance notice prior to the applicable Termination Date for business combination, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Advance Notice Period Prior to Applicable Termination Date for Business Combination Advance notice prior to applicable Termination Date Percentage of ordinary shares issued and outstanding in the offering held by initial shareholders. Percentage of Ordinary Shares Issued and Outstanding held by Initial Shareholders Percentage of ordinary shares issued and outstanding held by initial shareholders. The extension period available to complete business combination after the Original Termination Date, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Extension Period to Complete Business Combination After Original Termination Date Extension period to complete business combination after Original Termination Date Adoption of Second Extension Amendment Proposal [Abstract] Adoption of Second Extension Amendment Proposal [Abstract] Lock-up period after the Closing Date. Lock-Up Period After Closing Date Lock-up period after the Closing Date Lock-up period beginning on the Closing Date until the date that is the earlier. Lock-Up Period Beginning on Closing Date Lock-up period beginning on the Closing Date Threshold period after the initial Business Combination for the common stock price to exceed the threshold price per share, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Threshold Period after Initial Business Combination Threshold period after initial Business Combination Investor Rights Agreement [Abstract] Investor Rights Agreement [Abstract] Represents the number of demands eligible security holder can make. Number Of Demands Eligible Security Holder Can Make Number of demands eligible security holder can make The amount of gain (loss) from forgiveness of deferred underwriting commissions. Gain (Loss) from Forgiveness of Deferred Underwriting Commissions Gain from settlement of deferred underwriting commissions Period of time required before shares become exercisable 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. Period Required for Shares to Become Exercisable Registration And Stockholder Rights [Abstract] Registration Rights [Abstract] Percentage of deferred underwriting commissions payable at the time of the agreement to enter into the initial Business Combination. Percentage of Deferred Underwriting Commissions Payable Included in Initial Business Combination Percentage of deferred underwriting commissions payable included in initial Business Combination Period of underwriter to purchase options, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Sale of Stock Underwriter, Option Term Sale of stock underwriter option term Underwriting discount fee per unit paid to underwriters. Underwriting Discount Fee Underwriting discount (in dollars per share) Deferred underwriting discount fee per unit payable to underwriters in the event the Company completes a Business Combination, subject to terms of the underwriting agreement. Underwriting Discount Fee Deferred Deferred underwriting discount (in dollars per share) Underwriting Agreement [Abstract] Underwriting Agreement [Abstract] Number of trading days for common stock price to exceed threshold, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Number of Trading Days Number of trading days Threshold period of specified trading days that common stock price exceeds threshold price per share, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Trading Days Threshold Trading day threshold period These are the most common types of shares issued by a publicly listed firm, hence the name common stock. They provide the simplest way for a firm to raise capital as they do not give any special rights. Business Combination of Shares to be Issued to Investors Shares issued to investors (in shares) Business Combination Agreement and Sponsor Letter Agreement [Abstract] Business Combination Agreement and Sponsor Letter Agreement [Abstract] Each issued and outstanding ordinary share will be automatically cancelled, extinguished and converted into the right to receive. Number of Common Shares, Right to Receive Number of common shares, right to receive (in shares) Purchase agreements dated April 4, 2023 and November 28, 2023, between Adagio and the Perceptive PIPE Investor. Bridge Financing Notes 2023 [Member] 2023 Bridge Financing Notes [Member] The amount of additional financing being raised prior to closing. Additional Financing Raised Prior to Closing Additional financing being raised prior to closing Private investors in a public equity (PIPE). PIPE Investors [Member] PIPE Financing [Member] The amount of additional investment to debt. Additional Investment to Debt Additional investment to debt PIPE Financing (Private Placement) [Abstract] PIPE Financing (Private Placement) [Abstract] Units sold in a public offering that consist of Class A common stock. Public Shares [Member] Public Shares [Member] Carrying value as of the balance sheet date of outstanding underwriting commissions payable initially due after one year or beyond the operating cycle if longer, excluding current portion. Deferred Underwriting Commissions Deferred underwriting commissions Initial Public Offering of Units [Abstract] Initial Public Offering [Abstract] The cash outflow for redemption of Class A ordinary shares during the period. Payments for Redemption of Temporary Equity Redemption of Class A ordinary shares The cash inflow from cash withdrawn from Trust Account. Proceeds from Cash Withdrawal from Trust Account Cash withdrawn from Trust Account for redemption The entire disclosure for the initial public offering of the Company's common stock. Initial Public Offering [Text Block] Initial Public Offering Initial Public Offering [Abstract] Number of shares of common stock and temporary equity outstanding. Common stock represent the ownership interest in a corporation. Common Stock and Temporary Equity, Shares, Outstanding Ordinary shares, shares outstanding (in shares) The percentage by which one class of stock will convert into another class of stock following the consummation of the initial Business Combination at a given ration through specified requirements that must be met per the shareholders' letter of agreement. Stock Conversion Basis, Percentage Stock conversion basis at time of business combination percentage Ratio applied to the conversion of stock, for example but not limited to, one share converted to two or two shares converted to one. Stock Conversion Ratio Stock conversion basis at time of business combination Total number of common shares and shares deemed temporary equity of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). Common Stock and Temporary Equity, Shares Issued Ordinary shares, shares issued (in shares) Amount of decrease (increase) in additional paid in capital (APIC) for the open market subscription agreement expense. Adjustments to Additional Paid in Capital Open Market Subscription Agreement Expense Open Market Subscription Agreement expense Increase in redemption value of class of stock classified as temporary equity subject to possible redemption during the period. Temporary Equity, Increase In Redemption Value of Shares Subject To Possible Redemption Adjustment of accretion of Class A ordinary shares subject to possible redemption Adjustment of accretion of Class A ordinary shares subject to possible redemption Carrying value as of the balance sheet date of outstanding underwriting fee payable initially due after one year or beyond the operating cycle if longer, excluding current portion. Deferred Underwriting Fee Payable Non Current Deferred underwriting commissions Deferred underwriting commissions The amount of gain on extinguishment of accrued legal expenses during the period. Gain on Extinguishment of Accrued Legal Expenses Gain on extinguishment of accrued legal expenses Gain on extinguishment of accrued legal expenses The amount of open market subscription agreement expense during the period. Open Market Subscription Agreement Expense Open Market Subscription Agreement expense Open Market Subscription Agreement expense