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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Promotional Allowances, Advertising Costs and Gaming Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Gaming Taxes
Gaming taxes	$ 17.2	$ 23.0	$ 22.3
Selling, general and administrative
Advertising Costs
Advertising expense	$ 4.5	$ 5.0	$ 4.9

X

- Definition

Represents the total amount of gaming taxes.

+ References

No definition available.

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- Definition

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No definition available.

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X

- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 35
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848

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- References

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