XML 73 R59.htm IDEA: XBRL DOCUMENT
v3.24.0.1

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
COMMITMENTS AND CONTINGENCIES |  |  |
Professional service fees relating to our construction litigation | $ 6,900,000 | $ 7,300,000 | $ 5,100,000
PCL Construction Services, Inc. |  |  |
COMMITMENTS AND CONTINGENCIES |  |  |
Professional service fees relating to our construction litigation | 6,900,000 | $ 7,300,000 | $ 5,100,000
Monarch Black Hawk, Inc. (owner of Monarch Casino Black Hawk) | Self-Insurance |  |  |
COMMITMENTS AND CONTINGENCIES |  |  |
Individual health care liability retained | 250,000 |  |
Golden Road Motor Inn, Inc. (owner and operator of Atlantis) | Self-Insurance |  |  |
COMMITMENTS AND CONTINGENCIES |  |  |
Individual health care liability retained | $ 250,000 |  |
Liability for claims in excess of stop loss (as a percent) | 10.00% |  |
Maximum claim liability for workers' compensation | $ 500,000 |  |

X
- Definition Represents the entity's percentage of liability for individual health care claims in excess of the stop loss. + References No definition available. + Details
Name: | mcri_ExcessStopLossInsuranceLiabilityPercentageOfIndividualHealthCareClaimLiabilityInExcessOfStopLoss
Namespace Prefix: | mcri_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum amount of individual health care claim liability retained by the entity under stop-loss insurance. + References No definition available. + Details
Name: | mcri_StopLossInsuranceIndividualHealthCareClaimLiabilityRetainedMaximum
Namespace Prefix: | mcri_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the maximum amount of liability for a workers' compensation claim under stop-loss insurance. + References No definition available. + Details
Name: | mcri_StopLossInsuranceLiabilityForWorkersCompensationClaimMaximum
Namespace Prefix: | mcri_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-4 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-4 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-9 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-9 + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_LitigationCaseAxis=mcri_PclConstructionServicesInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=mcri_MonarchBlackHawkIncorporatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_UninsuredRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=mcri_GoldenRoadMotorInnIncorporatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |