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Description of Business Basis of Presentation and Significant Accounting Policies [Text Block] Stock-based compensation expense Share-Based Payment Arrangement, Expense Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Income tax provision Income tax provision Income Tax Expense (Benefit) Accrued salaries and related benefits Employee-related Liabilities, Current Vesting [Axis] Vesting [Axis] Fair Value of Assets And Liabilities Fair Value Disclosures [Text Block] New Hampshire NEW HAMPSHIRE Number of operating segments Number of Operating Segments Name Trading Arrangement, Individual Name Equity [Abstract] Equity [Abstract] Net revenue Revenue from Contract with Customer, Excluding Assessed Tax Entity [Domain] Entity [Domain] Price per common stock (in dollars per share) Stock Repurchased During Period, Price Per Share Stock Repurchased During Period, Price Per Share Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag Revolver Revolver [Member] Revolver Legal Entity [Axis] Legal Entity [Axis] Mississippi MISSISSIPPI Pre-opening expense Pre-Opening Costs Deferred income taxes Increase (Decrease) in Deferred Income Taxes Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Taxes paid related to net share settlement of stock awards (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Interest expense Interest Income (Expense), Net Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Credit Facility [Domain] Credit Facility [Domain] Other income Other income (expense)-Adjusted EBITDA Other income (expense) that is excluding of Adjusted EBITDA items Schedule of Repurchase Agreements Schedule of Repurchase Agreements [Table Text Block] Basis spread Debt Instrument, Basis Spread on Variable Rate Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Numerator for basic and diluted net income per common share: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Total debt, net of current maturities and costs Long-Term Debt, Excluding Current Maturities Louisville Louisville Property [Member] Louisville Property Diluted (in shares) Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Simulcast and online wagering receivables Simulcast and ADW Receivables [Member] Simulcast and ADW Receivables [Member] Right-of-use assets obtained in exchange for lease obligations in finance leases Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Operating expense: Operating Expenses [Abstract] Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Company Selected Measure Amount Company Selected Measure Amount Property By Location [Domain] Casino By Location [Domain] Casino By Location [Domain] Total assets Total assets Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Equity in income of unconsolidated affiliates Equity in income of unconsolidated affiliates Income (Loss) from Equity Method Investments Share Repurchase Program [Axis] Share Repurchase Program [Axis] Cover page. Cover [Abstract] Subsequent Event Subsequent Events [Text Block] Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Salaries and benefits Labor and Related Expense Payment of dividends Payments of Dividends Other liabilities Other Liabilities, Noncurrent Non-NEOs Non-NEOs [Member] Remaining performance obligation, amount Revenue, Remaining Performance Obligation, Amount Total operating expense Operating Expenses Segment Information Segment Reporting Disclosure [Text Block] Term Loan B-1 due 2028 Term Loan B-1 Term Loan B-1 Due 2028 [Member] Term Loan B-1 Due 2028 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 Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Term Loan Secured Debt [Member] Non-PEO NEO Non-PEO NEO [Member] Equity Component [Domain] Equity Component [Domain] Adjustment to Compensation: Adjustment to Compensation [Axis] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Debt Instrument [Line Items] Debt Instrument [Line Items] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Entity Current Reporting Status Entity Current Reporting Status Operating income Operating income Operating Income (Loss) 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 Net revenue: Revenues [Abstract] Senior Notes Due 2028, Existing Senior Notes Due 2028, Existing [Member] Senior Notes Due 2028, Existing Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Affiliate Of Duchossois Group, Inc. Affiliate Of Duchossois Group, Inc. [Member] Affiliate Of Duchossois Group, Inc. Segments [Axis] Segments [Axis] Statement [Line Items] Statement [Line Items] Fair Value Estimate of Fair Value Measurement [Member] Term Loan A due 2027 Term Loan A due 2027 [Member] Term Loan A due 2027 Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Share-based Compensation Award, Tranche One Share-Based Payment Arrangement, Tranche One [Member]