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Note 1 - Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Schedule of Cash and Cash Equivalents and Restricted Cash [Table Text Block] |
|  | December 31, |  |  | December 31, |  |  | December 31, |  |  | December 31, |
(In thousands) |  | 2024 |  |  | 2023 |  |  | 2022 |  |  | 2021 |
Cash and cash equivalents |  | $ | 316,688 |  |  | $ | 304,271 |  |  | $ | 283,472 |  |  | $ | 344,557 |
Restricted cash |  |  | 4,676 |  |  |  | 3,659 |  |  |  | 11,593 |  |  |  | 12,571 |
Total cash, cash equivalents and restricted cash |  | $ | 321,364 |  |  | $ | 307,930 |  |  | $ | 295,065 |  |  | $ | 357,128 |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] |
|  | Year Ended December 31, |
(In thousands) |  | 2024 |  |  | 2023 |  |  | 2022 |
Beginning balance, January 1, |  | $ | 2,728 |  |  | $ | 2,595 |  |  | $ | 3,338 |
Additions |  |  | 921 |  |  |  | 984 |  |  |  | 1,557 |
Deductions |  |  | (1,308 | ) |  |  | (851 | ) |  |  | (2,300 | )
Ending balance, December 31, |  | $ | 2,341 |  |  | $ | 2,728 |  |  | $ | 2,595 |
Property, Plant and Equipment, Useful Life [Table Text Block] |
Building and improvements | 3 through 40 years
Riverboats and barges | 5 through 40 years
Furniture and equipment | 1 through 12 years
Investments Classified by Contractual Maturity Date [Table Text Block] |
(In thousands) |  |  |  |
For the year ending December 31, |  |  |  |
2025 |  | $ | 785 |
2026 |  |  | 845 |
2027 |  |  | 910 |
2028 |  |  | 975 |
2029 |  |  | 1,050 |
Thereafter |  |  | 11,785 |
Total |  | $ | 16,350 |
Schedule of Changes in Self Insurance Reserves [Table Text Block] |
|  | Year Ended December 31, |
(In thousands) |  | 2024 |  |  | 2023 |  |  | 2022 |
Beginning balance, January 1, |  | $ | 33,857 |  |  | $ | 37,492 |  |  | $ | 42,563 |
Additions |  |  |  |  |  |  |  |  |  |  |  |
Charged to costs and expenses |  |  | 79,373 |  |  |  | 68,981 |  |  |  | 81,249 |
Payments made |  |  | (80,173 | ) |  |  | (72,616 | ) |  |  | (86,320 | )
Ending balance, December 31, |  | $ | 33,057 |  |  | $ | 33,857 |  |  | $ | 37,492 |
Schedule Of Promotional Allowances [Table Text Block] |
|  | Year Ended December 31, |
(In thousands) |  | 2024 |  |  | 2023 |  |  | 2022 |
Food & beverage |  | $ | 128,322 |  |  | $ | 119,202 |  |  | $ | 116,364 |
Rooms |  |  | 62,944 |  |  |  | 62,521 |  |  |  | 65,485 |
Other |  |  | 8,595 |  |  |  | 8,679 |  |  |  | 8,818 |

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