XML 75 R61.htm IDEA: XBRL DOCUMENT v3.20.4

COMMITMENTS AND CONTINGENCIES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
COMMITMENTS AND CONTINGENCIES
Professional service fees relating to our construction litigation	$ 1,600,000	$ 300,000
PCL Construction Services, Inc.
COMMITMENTS AND CONTINGENCIES
Professional service fees relating to our construction litigation	1,600,000	$ 300,000
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:	num: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

No definition available.

+ 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: