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COMMITMENTS AND CONTINGENCIES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
COMMITMENTS AND CONTINGENCIES
Professional service fees	$ 7,300,000	$ 5,100,000	$ 1,600,000
PCL Construction Services, Inc.
COMMITMENTS AND CONTINGENCIES
Professional service fees	7,300,000	$ 5,100,000	$ 1,600,000
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.

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- Definition

The maximum amount of individual health care claim liability retained by the entity under stop-loss insurance.

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- Definition

Represents the maximum amount of liability for a workers' compensation claim under stop-loss insurance.

+ References

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- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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- 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.

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