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Note 9 - Commitments and Contingencies (Details Textual) - USD ($) |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 20, 2011 | Sep. 30, 2011 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Oct. 15, 2018
Accrued Liabilities, Current, Total |  |  | $ 438,896,000 | $ 334,175,000 |  |
Business Combination Contingent Consideration Arrangements, Payment To Option Holder Percentage Of Ebitda | 1.00% |  |  |  |  |
Parking Fee Per Space |  |  | $ 80 |  |  |
Lessee, Operating Lease, Renewal Term |  |  | 67 years |  |  |
Development Agreement [Member] |  |  |  |  |  |
Business Combination, Consideration Transferred, Total |  | $ 24,500,000 |  |  |  |
Project Development Preopening and Writedowns |  |  | $ 6,600,000 |  |  |
Development Agreement [Member] | Minimum [Member] |  |  |  |  |  |
Unrecorded Commitment to Fund Pre Development Costs, Annual Amount |  |  | $ 1,000,000 |  |  |
Project, Construction Timeline |  |  | 18 months |  |  |
Development Agreement [Member] | Maximum [Member] |  |  |  |  |  |
Unrecorded Commitment to Fund Pre Development Costs, Annual Amount |  |  | $ 2,000,000 |  |  |
Project, Construction Timeline |  |  | 24 months |  |  |
Kansas Star [Member] |  |  |  |  |  |
Business Combination Contingent Consideration Arrangements, Payment To Option Holder Percentage Of Ebitda |  |  | 1.00% |  |  |
Business Combination, Contingent Consideration, Arrangements Payment to Option Holder Term |  |  | 10 years |  |  |
Diamond Jo Dubuque [Member] |  |  |  |  |  |
Sponsor Fee Percentage |  |  | 4.50% |  |  |
Sponsor Fees |  |  | $ 3,200,000 | 3,100,000 | $ 3,100,000 |
Diamond Jo Worth [Member] |  |  |  |  |  |
Other Commitment Time Period |  |  | 10 years |  |  |
Sponsor Fee Percentage |  |  | 5.76% |  |  |
Sponsor Fees |  |  | $ 4,900,000 | 4,900,000 | $ 5,000,000.0 |
Master Lease for Pinnacle Purchase Agreement [Member] |  |  |  |  |  |
Lessee, Operating Lease, Renewal Term |  |  |  |  |  | 5 years
Annual Donations for Education in Operating Area [Member] | Kansas Star [Member] |  |  |  |  |  |
Other Commitment, Total |  |  | $ 1,500,000 |  |  |
Mulvane Special Tax Assessment for Utilities [Member] | Kansas Star [Member] |  |  |  |  |  |
Other Commitment Time Period |  |  | 15 years |  |  |
Debt Issued By Counterparty |  |  | $ 19,700,000 |  |  |
Special Tax Assessment |  |  | 1,600,000 | 1,700,000 |  |
Accrued Liabilities, Current, Total |  |  | 6,700,000 | 7,400,000 |  |
Mulvane Special Tax Assessment for Utilities, Discount [Member] | Kansas Star [Member] |  |  |  |  |  |
Accrued Liabilities, Current, Total |  |  | 2,500,000 | 3,000,000.0 |  |
Additional Mulvane Special Tax Assessment for Utilities [Member] | Kansas Star [Member] |  |  |  |  |  |
Debt Issued By Counterparty |  |  | 5,000,000.0 |  |  |
Special Tax Assessment |  |  | 1,700,000 |  |  |
Dubuque Minimum Assessment Agreement [Member] | Diamond Jo Dubuque [Member] |  |  |  |  |  |
Property Taxes Minimum Agreed Taxable Value |  |  | 57,900,000 |  |  |
Other Commitment, Minimum Annual Payments |  |  | 1,900,000 | 1,900,000 |  |
Dubuque Minimum Assessment Agreement [Member] | Diamond Jo Dubuque [Member] | Other Liabilities [Member] |  |  |  |  |  |
Other Commitment Obligation |  |  | 13,100,000 | 13,400,000 |  |
Other Commitment, Discount on Obligation |  |  | $ 2,300,000 | $ 2,500,000 |  |

X
- Definition Percentage of EBITDA to be paid to option holder as part of a business combination contingent consideration agreement. + References No definition available. + Details
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