Gaming Gaming [Member] Gaming [Member] Goodwill additions Goodwill, Acquired During Period Remaining unused authorization for stock repurchase program Share Repurchase Program, Remaining Authorized, Amount Number of performance criteria Number Of Performance Criteria Number Of Performance Criteria Cover page. Cover [Abstract] Net increase in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Trading Symbol Trading Symbol Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Equity method investment, ownership percentage Equity Method Investment, Ownership Percentage Adjusted EBITDA Adjusted EBITDA Adjusted Earnings Before Interest, Tax, Depreciation, and Amortization Adjusted Earnings Before Interest, Tax, Depreciation, and Amortization All Trading Arrangements All Trading Arrangements [Member] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Non-NEOs Non-NEOs [Member] Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Award vesting period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Miami Valley Gaming LLC Miami Valley Gaming LLC [Member] Miami Valley Gaming LLC [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Allowance for credit losses Accounts Receivable, Allowance for Credit Loss, Current Adjustments Goodwill, Measurement Period Adjustment Western Kentucky Western Kentucky [Member] Western Kentucky Equity method investment, amount Equity Method Investments Disposal Group Name [Domain] Disposal Group Name [Domain] Pay vs Performance Disclosure [Line Items] Deferred payment liability Business Combination, Consideration Transferred, Liability Business Combination, Consideration Transferred, Liability Term Loan A due 2029 Term Loan A due 2029 [Member] Term Loan A due 2029 Redeemable noncontrolling interest Balance, December 31, 2023 Balance, June 30, 2024 Redeemable Noncontrolling Interest, Equity, Carrying Amount Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Southwestern Kentucky Southwestern Kentucky [Member] Southwestern Kentucky Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Pari-mutuel, historical racing Pari-Mutuel, Historical Racing [Member] Pari-Mutuel, Historical Racing [Member] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Senior Notes Due 2028, Additional Senior Notes Due 2028, Additional [Member] Senior Notes Due 2028, Additional Fair Value of Assets And Liabilities Fair Value Disclosures [Text Block] Award Timing Disclosures [Line Items] Other assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Investment, Name [Domain] Investment, Name [Domain] Redeemable Noncontrolling Interest [Table] Redeemable Noncontrolling Interest [Table] Other Performance Measure, Amount Other Performance Measure, Amount Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Goodwill [Line Items] Goodwill [Line Items] Interest expense Interest Income (Expense), Operating Property By Location [Axis] Property By Location [Axis] Casino By Location [Axis] All Other Other Product and Service, Other [Member] 2028 Senior Notes Senior Notes Due 2028 [Member] Senior Notes Due 2028 [Member] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Plan Name [Domain] Plan Name [Domain] Accrued fixed assets Accrued Fixed Assets, Current Accrued Fixed Assets, Current Other assets Other assets, net Other Assets, Noncurrent Entity Tax Identification Number Entity Tax Identification Number Gross Carrying Amount Finite-Lived Intangible Assets, Gross Schedule of Long-Term Debt Instruments Schedule of Long-Term Debt Instruments [Table Text Block] Operating Segments Operating Segments [Member] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Capital expenditures: Property, Plant and Equipment, Additions Income taxes payable Taxes Payable, Current Net income per common share data: Earnings Per Share Reconciliation [Abstract] Redeemable noncontrolling interest initial measurement Redeemable Noncontrolling Interest, Equity, Fair Value Eliminations Intersegment Eliminations [Member] Term Loan Secured Debt [Member] Other operating expense Other Cost and Expense, Operating Plan Name [Axis] Plan Name [Axis] Other Stockholders' Equity, Other Equity Components [Axis] Equity Components [Axis] Other current assets Other Assets, Current Award Timing Method Award Timing Method [Text Block] Accrued expenses and other current liabilities Total Accrued Liabilities And Other Current Liabilities, Current Accrued Liabilities And Other Current Liabilities, Current Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Transaction expense, net Acquisition Related Contingent Consideration Costs Amount of increase (decrease) in the value of the earnout and deferred founder liability Share Repurchase Program [Table] Share Repurchase Program [Table] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Insider Trading Policies and Procedures [Line Items] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Investments in and Advances to Affiliates [Table] Investments in and Advances to Affiliates [Table] Adjustment to Compensation, Amount Adjustment to Compensation Amount Payables and Accruals [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Diluted Earnings Per Share, Diluted [Abstract] External Customer External Customer [Member] External Customer [Member] Schedule of non-cash operating, investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Entity Small Business Entity Small Business Supplemental Balance Sheet Information Accounts Payable and Accrued Liabilities Disclosure [Text Block] Company Selected Measure Amount Company Selected Measure Amount Debt issuance costs Payments of Debt Issuance Costs Tabular List, Table Tabular List [Table Text Block] Property and equipment, net Property, Plant, And Equipment, Net and Operating Lease, Right-Of-Use Asset Property, Plant, And Equipment, Net and Operating Lease, Right-Of-Use Asset Gain on sale of Arlington Gain (Loss) on Disposition of Business Level 3 Fair Value, Inputs, Level 3 [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Repurchase of common stock Repurchase aggregate cost Stock Repurchased During Period, Value Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Tranche One Share-Based Payment Arrangement, Tranche One [Member] Pre-opening expense Pre-Opening Costs Gaming taxes and purses Gaming Taxes and Purses The total amount of tax and purse expense items that are associated with the entity's normal operation. Credit Facility [Domain] Credit Facility [Domain] Cash, cash equivalents and restricted cash, beginning of period Cash, cash equivalents and restricted cash, end of period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts and Financing Receivables [Table] Current assets: Assets, Current [Abstract] Goodwill Goodwill, Beginning Balance Goodwill, Ending Balance Goodwill Consolidation Items [Axis] Consolidation Items [Axis] Taxes paid related to net share settlement of stock awards Payment, Tax Withholding, Share-Based Payment Arrangement Authorized stock repurchase amount Share Repurchase Program, Authorized, Amount Cash received from income tax refunds Proceeds from Income Tax Refunds Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Product and Service [Domain] Product and Service [Domain] Employee Stock Option Share-Based Payment Arrangement, Option [Member] High Plaines High Plaines [Member] High Plaines [Member] Transaction expense, net Transaction expense, net Transaction expense, net includes acquisition and disposition related charges and Other transaction expenses, including legal, accounting and other misc related expenses Goodwill [Roll Forward] Goodwill [Roll Forward] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Other Proceeds from (Payments for) Other Financing Activities Northern Kentucky Northern Kentucky [Member] Northern Kentucky Security Exchange Name Security Exchange Name Basis spread Debt Instrument, Basis Spread on Variable Rate Award Type [Axis] Award Type [Axis] Net income attributable to Churchill Downs Incorporated per common share data: Basic Earnings Per Share, Basic [Abstract] Virginia VIRGINIA Property and equipment, net Property, Plant and Equipment, Net Purchase discount Stock Repurchased During Period, Discount From Market Price Stock Repurchased During Period, Discount From Market Price Total liabilities Liabilities Premium (percent) Debt Instrument, Unamortized Premium, Percentage Debt Instrument, Unamortized Premium, Percentage Salaries and benefits Labor and Related Expense Equity method investment, difference between carrying amount and underlying equity Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Change in bank overdraft Proceeds from (Repayments of) Bank Overdrafts Continuing Operations Continuing Operations [Member] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Purses payable Purses Payable, Current Purses Payable, Current Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Revolving Credit Facility Revolving Credit Facility [Member] Expiration Date Trading Arrangement Expiration Date Disclosure of complimentary revenue Disclosure of Complimentary Revenue Disclosure of Complimentary Revenue Right-of-use assets obtained in exchange for lease obligations in finance leases Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Total Shareholder Return Amount Total Shareholder Return Amount Income taxes Increase (Decrease) in Income Taxes Payable Entity [Domain] Entity [Domain] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Long-term debt, net of current maturities and loan origination fees Secured Long-Term Debt, Noncurrent Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Debt Instrument [Line Items] Debt Instrument [Line Items] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Diluted (in shares) Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Numerator for basic and diluted net income per common share: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Total Churchill Downs Incorporated shareholders' equity Shareholders' equity, beginning Shareholders' equity, ending Equity, Attributable to Parent Related Party Related Party [Member] Segment Reporting, Asset Reconciling Item [Line Items] Segment Reporting, Asset Reconciling Item [Line Items] Interest expense, net Interest Expense, Nonoperating Schedule of Goodwill Schedule of Goodwill [Table Text Block] Letters of credit outstanding Letters of Credit Outstanding, Amount Selling, general and administrative expense Operating and SG&A expense Selling, General and Administrative Expense Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Exacta Systems Exacta Systems [Member] Exacta Systems Investments in and Advances to Affiliates [Line Items] Investments in and Advances to Affiliates [Line Items] Asset impairments Asset impairments Asset Impairment Charges Long-term debt Long-Term Debt Organization, Consolidation and Presentation of Financial Statements [Line Items] Organization, Consolidation and Presentation of Financial Statements [Line Items] Organization, Consolidation and Presentation of Financial Statements Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] 2031 Senior Notes Senior Notes Due 2031 [Member] Senior Notes Due 2031 Document Fiscal Period Focus Document Fiscal Period Focus All Executive Categories All Executive Categories [Member] Plus dilutive effect of stock awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Accounts receivable Accounts Receivable, before Allowance for Credit Loss, Current Affiliate Income Statement Affiliate Income Statement [Table Text Block] Affiliate Income Statement [Table Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] ASSETS Assets [Abstract] Document Type Document Type Temporary Equity Disclosure [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Schedule of Segment Reporting Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Investment in and advances to unconsolidated affiliates Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Redemption value adjustment Adjustments related to redeemable noncontrolling interest Temporary Equity, Accretion to Redemption Value, Adjustment Racing event-related services Racing Event-Related Services [Member] Racing Event-Related Services [Member] Indefinite-lived intangible assets, Net Carrying Amount Indefinite-Lived Intangible Assets (Excluding Goodwill) Contract with customer, liability Contract with Customer, Liability Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Definite-lived intangible assets, Net Carrying Amount Finite-Lived Intangible Assets, Net Accounts payable Accounts Payable, Current Accounting Policies [Abstract] Accounting Policies [Abstract] Net revenue: Revenues [Abstract] Net income attributable to redeemable noncontrolling interest Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Term Loan A Term Loan A [Member] Term Loan A Acquisitions Business Combination Disclosure [Text Block] Current Fiscal Year End Date Current Fiscal Year End Date Other expenses, net Other Expenses, Net Other Expenses, Net PEO Name PEO Name Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Interest, depreciation and amortization expense related to equity investments Equity Investments- interest, depreciation and amortization expense Equity Investments- interest, depreciation and amortization expense Income from operations before provision for income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Gaming Gaming Segment [Member] Gaming Segment [Member] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Vesting [Axis] Vesting [Axis] Award Type [Domain] Award Type [Domain] Name Outstanding Recovery, Individual Name Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Non-PEO NEO Non-PEO NEO [Member] Schedule of Accounts, Notes, Loans and Financing Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Award Timing Predetermined Award Timing Predetermined [Flag] Investment, Name [Axis] Investment, Name [Axis] Redemption price, percentage of face amount Debt Instrument, Redemption Price, Percentage Churchill Downs Racetrack Churchill Downs Racetrack [Member] Churchill Downs Racetrack [Member] Recent Accounting Pronouncements - Effective in 2024 or Thereafter New Accounting Pronouncements, Policy [Policy Text Block] Rivers Des Plaines' legal reserves and transaction costs Legal Reserves And Transaction Costs Legal Reserves And Transaction Costs Debt Long-Term Debt [Text Block] Counterparty Name [Domain] Counterparty Name [Domain] Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Amortization of operating lease assets Operating Lease, Right-of-Use Asset, Periodic Reduction Name Measure Name Entity Interactive Data Current Entity Interactive Data Current Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Churchill Downs Incorporated 2016 Omnibus Stock Incentive Plan Churchill Downs Incorporated 2016 Omnibus Stock Incentive Plan [Member] Churchill Downs Incorporated 2016 Omnibus Stock Incentive Plan Operating Activities [Axis] Operating Activities [Axis] Number of operating segments Number of Operating Segments Cash paid for income taxes Income Taxes Paid Customer [Axis] Customer [Axis] Fair Value Measurements, Recurring and Nonrecurring Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] 2021 Stock Repurchase Program 2021 Stock Repurchase Program [Member] 2021 Stock Repurchase Program Assets Statement of Financial Position [Abstract] Payment percentage of principal Line of Credit Facility, Period Payment, Percentage Of Principal Line of Credit Facility, Period Payment, Percentage Of Principal Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Summary of RSUs and PSUs Granted Share-Based Payment Arrangement, Activity [Table Text Block] TwinSpires TwinSpires TwinSpires [Member] TwinSpires [Member] Net income Net income Net income and comprehensive income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Income tax provision Income tax provision Income Tax Expense (Benefit) Other (expense) income: Nonoperating Income (Expense) [Abstract] Stated interest rate Debt Instrument, Interest Rate, Stated Percentage All Other Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Deferred payment term Business Combination, Consideration Transferred, Deferred Payment Term Business Combination, Consideration Transferred, Deferred Payment Term Investments in and Advances to Affiliates [Abstract] Net revenue Revenue from Contract with Customer, Excluding Assessed Tax Redeemable Noncontrolling Interest Rollforward [Roll Forward] Redeemable Noncontrolling Interest Rollforward [Roll Forward] Redeemable Noncontrolling Interest Rollforward Total other (expense) income Nonoperating Income (Expense) Capital maintenance expenditures Payments for Capital Improvements Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Operating income Operating income Operating Income (Loss) Interest and other, net Interest Expense, Operating and Nonoperating Stock Repurchase Agreement with The Duchossois Group, Inc Affiliate Stock Repurchase Agreement with The Duchossois Group, Inc Affiliate [Member] Stock Repurchase Agreement with The Duchossois Group, Inc Affiliate Business Acquisition [Line Items] Business Acquisition [Line Items] Number of reportable segments Number of Reportable Segments Total liabilities and shareholders' equity Liabilities and Equity Subsequent Event Subsequent Events [Text Block] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] All Adjustments to Compensation All Adjustments to Compensation [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Accrued salaries and related benefits Employee-related Liabilities, Current Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Legal Entity [Axis] Legal Entity [Axis] Payment of dividends Payments of Dividends Right-of-use assets obtained in exchange for lease obligations in operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Underlying Security Market Price Change Underlying Security Market Price Change, Percent Individual: Individual [Axis] Taxes paid related to net share settlement of stock awards Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Total adjustments to EBITDA Adjustments to Earnings Before Interest, Tax, Depreciation, and Amortization Adjustments to Earnings Before Interest, Tax, Depreciation, and Amortization Revenue, remaining performance obligation, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Product and Service [Axis] Product and Service [Axis] Entity Address, State or Province Entity Address, State or Province Statement [Line Items] Statement [Line Items] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Operating expense: Operating Expenses [Abstract] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Vesting [Domain] Vesting [Domain] Total consideration Business Combination, Consideration Transferred LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities and Equity [Abstract] Delaware North Companies Gaming & Entertainment Inc. Delaware North Companies Gaming & Entertainment Inc. [Member] Delaware North Companies Gaming & Entertainment Inc. [Member] Unamortized premium and deferred finance charges Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Share Repurchase Program [Line Items] Share Repurchase Program [Line Items] Restatement Determination Date Restatement Determination Date Fair Value Estimate of Fair Value Measurement [Member] Adoption Date Trading Arrangement Adoption Date Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Marketing and advertising Marketing and Advertising Expense Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Other charges and recoveries, net Other charges & recoveries, net Other charges & recoveries, net 2027 Senior Notes Senior Notes Due 2027 [Member] Senior Notes Due 2027 [Member] Segments [Axis] Segments [Axis] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Total debt Long-Term Debt, Gross Exercise Price Award Exercise Price Dividends payable Dividends Payable, Current Net Income Per Common Share Computations Earnings Per Share [Text Block] Arrangement Duration Trading Arrangement Duration Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Basic net income (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Restricted cash Restricted cash Restricted Cash and Cash Equivalents, Current Redeemable Noncontrolling Interest [Line Items] Redeemable Noncontrolling Interest [Line Items] Shareholders' equity: Equity, Attributable to Parent [Abstract] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Segments [Domain] Segments [Domain] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Deferred payments Business Combination Expenditures Incurred But Not Yet Paid Business Combination Expenditures Incurred But Not Yet Paid Schedule of Repurchase Agreements Schedule of Repurchase Agreements [Table Text Block] All Individuals All Individuals [Member] Description of Business Basis of Presentation and Significant Accounting Policies [Text Block] PEO PEO [Member] Percent sold Disposal Group, Including Discontinued Operations, Percentage Sold Disposal Group, Including Discontinued Operations, Percentage Sold Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Financial liabilities Debt Instrument, Fair Value Disclosure Name Trading Arrangement, Individual Name Miscellaneous, net Other Nonoperating Income (Expense) Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Other intangible assets, net Total intangible assets Intangible Assets, Net (Excluding Goodwill) Disposal Group Name [Axis] Disposal Group Name [Axis] Accrued interest Interest Payable Equity in income of unconsolidated affiliates Equity in income of unconsolidated affiliates Income (Loss) from Equity Method Investments Commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Notes payable, net of debt issuance costs Unsecured Long-Term Debt, Noncurrent Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract] Maintenance, insurance and utilities Utilities Operating Expense, Maintenance and Operations Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Casino Investors Casino Investors [Member] Casino Investors [Member] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Related Party, Type [Domain] Related and Nonrelated Parties [Domain] Shares outstanding, beginning (in shares) Shares outstanding, ending (in shares) Shares, Outstanding Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Local Phone Number Local Phone Number Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Total operating expense Operating Expenses Deferred income taxes Deferred Income Tax Liabilities, Net Repurchase of common stock (in shares) Repurchase of common stock (in shares) Stock Repurchased During Period, Shares Service period vested (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] PEO Total Compensation Amount PEO Total Compensation Amount Arlington exit costs Business Exit Costs Total operating expense Equity Method Investment Operating Expense Equity Method Investment Operating Expense Schedule of Accrued Expenses and Other Current Liabilities Schedule of Accrued Liabilities [Table Text Block] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Non-cash impairment charges Impairment of Intangible Assets, Finite-Lived Contingencies Commitments and Contingencies Disclosure [Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Common Stock Common Stock [Member] Measure: Measure [Axis] 2030 Senior Notes Senior Notes Due 2030 [Member] Senior Notes Due 2030 Credit Agreement Amendment Credit Agreement Amendment [Member] Credit Agreement Amendment Share price (in dollars per share) Share Price Stock split, conversion ratio Stockholders' Equity Note, Stock Split, Conversion Ratio Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Issuance of common stock (in shares) Stock Issued During Period, Shares, New Issues Line of Credit Line of Credit [Member] Entity Emerging Growth Company Entity Emerging Growth Company Segment Reporting [Abstract] Segment Reporting [Abstract] Iowa IOWA Taxes paid related to net share settlement of stock awards (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Entity Central Index Key Entity Central Index Key Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Shareholders' Equity Equity [Text Block] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Equity Component [Domain] Equity Component [Domain] Property and other taxes Utilities Operating Expense, Taxes Bridge Loan Bridge Loan [Member] Segment Information Segment Reporting Disclosure [Text Block] Current maturities of long-term debt Current maturities of long-term debt Long-Term Debt, Current Maturities Selling, general and administrative expense Adjusted EBITDA Selling, General & Administrative Expenses Selling, General & Administrative Expenses that are excluding Adjusted EBITDA items Operating activities of discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Adjustments to reconcile net income to net cash provided by operating activities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition RSAs Restricted Stock [Member] Entity Shell Company Entity Shell Company Measurement Basis [Axis] Measurement Basis [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Title Trading Arrangement, Individual Title Statement [Table] Statement [Table] Other receivables Other Receivables [Member] Other Receivables [Member] Counterparty Name [Axis] Counterparty Name [Axis] Recent Accounting Pronouncements Significant Accounting Policies [Text Block] Consolidation Items [Domain] Consolidation Items [Domain] City Area Code City Area Code Current liabilities: Liabilities, Current [Abstract] Schedule of Indefinite and Finite Lived Assets Schedule of Indefinite and Finite Lived Assets [Table Text Block] Schedule of Indefinite and Finite Lived Assets [Table Text Block] Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Trade receivables Trade Account Receivable [Member] Trade Account Receivable [Member] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Level 1 Fair Value, Inputs, Level 1 [Member] Total current assets Current assets Assets, Current Gain on sale of Arlington Gain on sale of Arlington Gain (Loss) on Disposition of Assets Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Senior Notes Senior Notes [Member] Affiliate Balance Sheet Affiliate Balance Sheet [Table Text Block] Affiliate Balance Sheet [Table Text Block] Repurchase of common stock Payments for Repurchase of Common Stock Number of performance conditions Number Of Performance Conditions Number Of Performance Conditions Rivers Des Plaines Rivers Des Plaines [Member] Rivers Des Plaines Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Total debt, net of current maturities and costs Long-Term Debt, Excluding Current Maturities Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Florida FLORIDA Income Taxes Income Tax Disclosure [Text Block] Pari-mutuel, live and simulcast racing Pari-Mutuel, Live And Simulcast Racing [Member] Pari-Mutuel, Live And Simulcast Racing [Member] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Net Revenue From External Customers and Intercompany Revenue From Each Operating Segment Revenue from External Customers by Products and Services [Table Text Block] Equity [Abstract] Equity [Abstract] Retained earnings Members' deficit Retained Earnings (Accumulated Deficit) Live and Historical Racing Live and Historical Live And Historical Racing [Member] Live And Historical Racing Accrued gaming liabilities Accrued Gaming Liabilities Accrued Gaming Liabilities United Tote Company United Tote Company [Member] United Tote Company Louisiana LOUISIANA Organization, Consolidation and Presentation of Financial Statements [Abstract] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Equity Awards Adjustments Equity Awards Adjustments [Member] Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Underlying Securities Award Underlying Securities Amount PSUs Performance Shares [Member] Current deferred revenue Deferred Revenue, Current Credit Facility [Axis] Credit Facility [Axis] Amendment Flag Amendment Flag Carrying Amount Reported Value Measurement [Member] Entity Registrant Name Entity Registrant Name Cash payment Payments to Acquire Businesses, Gross Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Depreciation and amortization Depreciation, Depletion and Amortization Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Equity Method Investment, Nonconsolidated Investee or Group of Investees Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] Account wagering deposits liability Account Wagering Deposits Liability, Current Account Wagering Deposits Liability, Current Fair Value as of Grant Date Award Grant Date Fair Value Subsequent Events [Abstract] Subsequent Events [Abstract] Schedule of Total Assets and Capital Expenditures by Operating Segment Reconciliation of Assets from Segment to Consolidated [Table Text Block] Maine MAINE Level 2 Fair Value, Inputs, Level 2 [Member] Maryland MARYLAND Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Face amount of debt issuance Debt Instrument, Face Amount Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date: Restatement Determination Date [Axis] Title of 12(b) Security Title of 12(b) Security Common stock Common Stock, Value, Issued Share-Based Payment Arrangement [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Other Payments for (Proceeds from) Other Investing Activities Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] EBITDA Earnings Before Interest Taxes Depreciation and Amortization Earnings Before Interest Taxes Depreciation and Amortization Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Preferred stock Preferred Stock, Value, Issued Redeemable Noncontrolling Interest Noncontrolling Interest Disclosure [Text Block] Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Content expense Content Expense The total amount of content expense that is associated with the entity's normal operation. Fair Value Measurement [Domain] Fair Value Measurement [Domain] Indiana INDIANA Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Capital project expenditures Payments to Acquire Other Property, Plant, and Equipment Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Schedule of Goodwill [Table] Goodwill [Table] Net income attributable to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Organization, Consolidation and Presentation of Financial Statements [Table] Organization, Consolidation and Presentation of Financial Statements [Table] Organization, Consolidation and Presentation of Financial Statements Total current liabilities Current liabilities Liabilities, Current Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Weighted average shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Total assets Total assets Assets Distributions from unconsolidated affiliates Proceeds from Equity Method Investment, Distribution Operating expense Cost of Goods and Services Sold Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] Number of Units Awarded (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Price per common stock (in dollars per share) Stock Repurchased During Period, Price Per Share Stock Repurchased During Period, Price Per Share Income taxes receivable Income Taxes Receivable, Current Revolver Revolver [Member] Revolver Other liabilities Other Liabilities, Noncurrent Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Commitments and contingencies Commitments and Contingencies Termination Date Trading Arrangement Termination Date Denominator for net income per common share: Earnings Per Share, Diluted, Other Disclosure [Abstract] Revenues Revenues Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Operating Activities [Domain] Operating Activities [Domain] Stock-based Compensation Plans Share-Based Payment Arrangement [Text Block] Other income Other income (expense)-Adjusted EBITDA Other income (expense) that is excluding of Adjusted EBITDA items Other Other Liabilities Pennsylvania PENNSYLVANIA Entity Address, City or Town Entity Address, City or Town Proceeds from borrowings under long-term debt obligations Proceeds from Issuance of Long-Term Debt Louisville Louisville Property [Member] Louisville Property Debt Instrument [Axis] Debt Instrument [Axis] Stock-based compensation expense Share-Based Payment Arrangement, Expense Net income attributable to Churchill Downs Incorporated Net income Net income attributable to Churchill Downs Incorporated Net Income (Loss) Attributable to Parent Trading Arrangement: Trading Arrangement [Axis] Simulcast and online wagering receivables Simulcast and ADW Receivables [Member] Simulcast and ADW Receivables [Member] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Business Acquisition [Axis] Business Acquisition [Axis] Current borrowing capacity Line of Credit Facility, Current Borrowing Capacity Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Property By Location [Domain] Casino By Location [Domain] Casino By Location [Domain] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Entity File Number Entity File Number Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Income Statement [Abstract] Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line One Repurchase of common stock included in accrued expense and other current liabilities Treasury Stock, Value, Acquired, Cost Method Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Name Forgone Recovery, Individual Name Document Period End Date Document Period End Date Non-current deferred revenue Deferred Revenue, Noncurrent Deferred income taxes Increase (Decrease) in Deferred Income Taxes Other Other Noncash Income (Expense) Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Deferred revenue Increase (Decrease) in Deferred Revenue Insider Trading Arrangements [Line Items] New Hampshire NEW HAMPSHIRE Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Term Loan B-1 due 2028 Term Loan B-1 Term Loan B-1 Due 2028 [Member] Term Loan B-1 Due 2028 PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Diluted net income (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Contract with customer, revenue recognized Contract with Customer, Liability, Revenue Recognized Adjustment to Compensation: Adjustment to Compensation [Axis] Net income attributable to noncontrolling interest Net income attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Investments in and Advances to Unconsolidated Affiliates Investments in and Advances to Affiliates, Schedule of Investments [Text Block] Document Transition Report Document Transition Report Document Quarterly Report Document Quarterly Report Mississippi MISSISSIPPI Property and equipment additions included in accounts payable and accrued expenses Property And Equipment Additions Included In Accounts Payable And Accrued Expenses Property and equipment additions included in accounts payable and accrued expenses Redeemable Noncontrolling Interest Redeemable Noncontrolling Interest [Table Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Customer [Domain] Customer [Domain] Entity Current Reporting Status Entity Current Reporting Status Retained Earnings Retained Earnings [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Related Party, Type [Axis] Related and Nonrelated Parties [Axis] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Senior Notes Due 2028, Existing Senior Notes Due 2028, Existing [Member] Senior Notes Due 2028, Existing Proceeds from sale of Arlington Proceeds from Sale of Productive Assets Affiliate Of Duchossois Group, Inc. Affiliate Of Duchossois Group, Inc. [Member] Affiliate Of Duchossois Group, Inc. RSUs Restricted Stock Units (RSUs) [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Executive Category: Executive Category [Axis] New York NEW YORK Name Awards Close in Time to MNPI Disclosures, Individual Name Repayments of borrowings under long-term debt obligations Repayments of Other Long-Term Debt Entity Filer Category Entity Filer Category Remaining performance obligation, amount Revenue, Remaining Performance Obligation, Amount Cash flows from discontinued operations: Net Cash Provided by (Used in) Discontinued Operations [Abstract] Letter of Credit Letter of Credit [Member] Company Selected Measure Name Company Selected Measure Name Secured Overnight Financing Rate (SOFR) [Member]