Document and Entity Information Document Information [Table] Document Information [Line Items] Document and Entity Information Document Type Document Quarterly Report Document Period End Date Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number 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 Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag Condensed Consolidated Balance Sheets Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and cash equivalents Marketable Securities, Current Financial investments Accounts Receivable, Net, Current Accounts receivable, net of $5.6 allowance for credit losses at June 30, 2024 and $4.5 at December 31, 2023 The carrying amount as of the balance sheet date of margin deposits and clearing funds included in assets. Margin Deposits And Clearing Funds, Assets Margin deposits, clearing funds, and interoperability funds Safeguarding Asset, Platform Operator, Crypto-Asset Digital assets - safeguarded assets Fair Value Income Taxes Receivable, Current Income taxes receivable Other Assets, Current Other current assets Assets, Current Total current assets Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Investments Total investments Carrying value of investments Property, Plant and Equipment, Excluding Land, Net Property, Plant and Equipment, Excluding Land, Net Property and equipment, net Carrying amount as of the balance sheet date of properties held for sale. Property Held For Sale Property held for sale Operating Lease, Right-of-Use Asset Operating lease right of use assets Goodwill Balance at end of the period Balance at beginning of the period Goodwill Intangible Assets, Net (Excluding Goodwill) Balance at end of the period Balance at beginning of the period Intangible assets, net Intangible assets, net Other Assets, Noncurrent Other assets, net Total other assets, net Assets Total assets Liabilities and Equity [Abstract] Liabilities and Stockholders' Equity Liabilities, Current [Abstract] Current liabilities: Accounts Payable and Accrued Liabilities, Current Accounts payable and accrued liabilities Total accounts payable and accrued liabilities Regulatory Fees Payable, Current Regulatory Fees Payable, Current Section 31 fees payable Contract with Customer, Liability, Current Deferred revenue The carrying amount as of the balance sheet date of margin deposits and clearing funds included in liabilities. Margin Deposits And Clearing Funds, Liabilities Margin deposits, clearing funds, and interoperability funds Safeguarding Liability, Platform Operator, Crypto-Asset Digital assets - safeguarded liabilities Accrued Income Taxes, Current Income taxes payable Business Combination, Contingent Consideration, Liability, Current Current portion of contingent consideration liabilities Liabilities, Current Total current liabilities Long-term Debt, Excluding Current Maturities Long-term debt Liability for Uncertainty in Income Taxes, Noncurrent Non-current unrecognized tax benefits Deferred Income Tax Liabilities, Net Deferred income taxes Operating Lease, Liability, Noncurrent Non-current operating lease liabilities Non-current operating lease liabilities Other Liabilities, Noncurrent Other non-current liabilities Liabilities Total liabilities Commitments and Contingencies. Commitments and contingencies Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Stockholders' equity: Preferred Stock, Value, Issued Preferred stock, $0.01 par value: 20,000,000 shares authorized, no shares issued and outstanding at June 30, 2024 and December 31, 2023 Common Stock, Value, Issued Common stock, $0.01 par value: 325,000,000 shares authorized, 105,962,230 and 104,788,542 shares issued and outstanding, respectively at June 30, 2024 and 105,556,817 and 105,527,815 shares issued and outstanding, respectively at December 31, 2023 Treasury Stock, Common, Value Common stock in treasury, at cost, 1,173,688 shares at June 30, 2024 and 29,002 shares at December 31, 2023 Additional Paid in Capital Additional paid-in capital Retained Earnings (Accumulated Deficit) Retained earnings Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss, net Stockholders' Equity Attributable to Parent Ending balance Beginning balance Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Contract with Customer, Asset, Allowance for Credit Loss Accounts Receivable, Allowance for credit losses Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized (in shares) Preferred Stock, Shares Issued Preferred stock, shares issued (in shares) Preferred Stock, Shares Outstanding Preferred stock, shares outstanding (in shares) Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized (in shares) Common Stock, Shares, Issued Common stock, shares issued (in shares) Common Stock, Shares, Outstanding Common stock, shares outstanding (in shares) Treasury Stock, Shares Common stock held in treasury (in shares) Condensed Consolidated Statements of Income Statement [Table] Statement [Table] Products and Services [Axis] Products and Services [Domain] Represents information pertaining to cash and spot markets member. Cash and spot markets Represents information pertaining to data and access solutions member. Data and access solutions This member stands for derivatives markets. Derivatives markets This member represent information liquidity payment. Liquidity payments Represents the routing and clearing fees. Routing and clearing Represents the Section 31 fees. Section 31 fees Represents the royalty fees primarily consist of license fees paid by us for the use of underlying indexes in our proprietary products usually based on contracts traded. Royalty fees and other cost of revenues Statement [Line Items] Consolidated Statements of Changes in Stockholders' Equity Statement Revenues [Abstract] Revenues: Revenue from Contract with Customer, Including Assessed Tax Total revenues Revenues Cost of Revenue [Abstract] Cost of revenues: Cost of Revenue Total cost of revenues Gross Profit Revenues less cost of revenues Revenues less cost of revenues Operating Expenses [Abstract] Operating expenses: Labor and Related Expense Compensation and benefits Depreciation, Depletion and Amortization Depreciation and amortization Depreciation and amortization Communications and Information Technology Technology support services Professional Fees Professional fees and outside services The amount of marketing advertising and travel expense. Marketing Advertising and Travel Expense Travel and promotional expenses Occupancy, Net Facilities costs Business Combination, Acquisition Related Costs Acquisition-related costs Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) Impairment of intangible assets Impairment Other Cost and Expense, Operating Other expenses Operating Expenses Total operating expenses Operating Income (Loss) Operating income (loss) Operating income Nonoperating Income (Expense) [Abstract] Non-operating (expenses) income: The net amount of nonoperating interest expense. Interest Expense, Nonoperating Interest expense The net amount of nonoperating interest income. Interest Income, Nonoperating Interest income Investment Income, Interest and Dividend Earnings on investments Other Nonoperating Income (Expense) Other (expense) income, net Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income before income tax provision Income Tax Expense (Benefit) Income tax provision Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Net income Net income Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Net income allocated to participating securities Net income allocated to participating securities Net Income (Loss) Available to Common Stockholders, Basic Net income allocated to common stockholders Earnings Per Share, Basic Basic earnings per share (in dollars per share) Earnings Per Share, Diluted Diluted earnings per share (in dollars per share) Weighted Average Number of Shares Outstanding, Basic Weighted average shares outstanding (in shares) Basic weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Total dilutive weighted average shares (in shares) Diluted weighted average shares outstanding (in shares) Condensed Consolidated Statements of Comprehensive Income Other Comprehensive Income (Loss), before Tax [Abstract] Other comprehensive (loss) income, net of income tax: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation adjustments Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Unrealized holding losses on financial investments Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax Post-retirement benefit obligations The amount of Comprehensive income (loss), before tax, including portion attributable to noncontrolling interest. Comprehensive Income (Loss), before tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income The amount of comprehensive undistributed earnings (loss) allocated to participating securities, basic. Comprehensive Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Comprehensive income allocated to participating securities The amount of comprehensive income (loss) available to common stockholders after tax. Comprehensive Income Loss Available To Common Stockholders After Tax Comprehensive income allocated to common stockholders, net of income tax Condensed Consolidated Statements of Changes in Stockholders' Equity Equity Components [Axis] Equity Component [Domain] Common Stock Treasury Stock, Common [Member] Treasury Stock Additional paid-in capital Retained earnings Accumulated other comprehensive income (loss), net. Accumulated Other Comprehensive Loss, Net Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Dividends, Common Stock, Cash Cash dividends on common stock Aggregate payout Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock-based compensation Equity impact of the cost of common and preferred stock that were repurchased from employee stock plans during the period. Recorded using the cost method. Treasury Stock Value Acquired From Employee Stock Plans Cost Method Repurchases of common stock from employee stock plans Treasury Stock, Value, Acquired, Cost Method Purchase of common stock Total purchase price Stock Issued During Period, Value, Employee Stock Purchase Plan Shares issued under employee stock purchase plan Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive (loss) income Common Stock, Dividends, Per Share, Declared Dividends (in dollars per share) Cash dividends declared (in dollars per share) Condensed Consolidated Statements 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 income to net cash from operating activities: Amortization of Debt Issuance Costs Amortization of debt issuance cost and debt discount Gain (Loss) on Settlement of Contingent Consideration Gain (Loss) on Settlement of Contingent Consideration Loss on settlement of contingent consideration Debt Securities, Available-for-Sale, Unrealized Gain (Loss) Unrealized gain on available-for-sale financial investments Provision for Other Credit Losses Provision for accounts receivable credit losses Deferred Income Tax Expense (Benefit) Benefit for deferred income taxes Share-based Compensation Stock-based compensation expense Other Asset Impairment Charges Impairment of minority investment Impairment of Long-Lived Assets to be Disposed of Impairment of property and equipment Amount of gain (loss) from non-recourse notes and warrants wind down. Gain (Loss) From Non-recourse Notes and Warrants Winded Off Gain from Cboe Digital non-recourse notes and warrants wind down Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Gain on sale of property held for sale Gain on sale of property held for sale Gain (Loss) on Termination of Lease Gain on lease termination Gain on lease termination Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down Expenses from Cboe Digital wind down Market Data Revenue Pyth tokens revenue Income (Loss) from Equity Method Investments Equity earnings on investments Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) in Accounts Receivable Accounts receivable Tthe amount of increase (decrease) in restricted cash and cash equivalents and customer bank deposits (included in margin deposits, clearing funds, and interoperability funds). Increase (Decrease) In Restricted Cash (Clearing Fund) Restricted cash and cash equivalents and customer bank deposits (included in margin deposits, clearing funds, and interoperability funds) Increase (Decrease) in Income Taxes Receivable Income taxes receivable Increase (Decrease) in Other Current Assets Other current assets Increase (Decrease) in Other Operating Assets Other assets Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and accrued liabilities Increase (decrease) in Section 31 fees payable. Increase (Decrease) in Regulatory Fees Payable Section 31 fees payable Increase (Decrease) in Contract with Customer, Liability Deferred revenue Increase (Decrease) in Income Taxes Payable Income taxes payable Increase (Decrease) Liability for Uncertainty in Income Taxes Increase (Decrease) Liability for Uncertainty in Income Taxes Unrecognized tax benefits Increase (Decrease) in Other Operating Liabilities Other liabilities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Payments to Acquire Available-for-sale Securities Purchases of available-for-sale financial investments Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Proceeds from maturities of available-for-sale financial investments Proceeds from Sale of Intangible Assets Proceeds from sale of intangible assets Proceeds from Divestiture of Businesses Proceeds from sale of property held for sale Proceeds from Sale of Property, Plant, and Equipment Proceeds from sale of property and equipment Proceeds from Insurance Settlement, Investing Activities Proceeds from insurance The cash outflow associated with the purchase of all investments (debt, security, other) during the period. Payments to Purchase Investments Contributions to investments Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment and leasehold improvements 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 used in financing activities: Repayments of Long-term Debt Principal payments of current portion of long-term debt Repayments of outstanding indebtedness