Goodwill and intangible assets.

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- Definition

Measurement of fair value inputs.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Goodwill and Intangible Assets - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 158,396,000		$ 158,396,000		$ 158,396,000
Amortization of intangible assets	1,900,000	$ 5,700,000	6,100,000	$ 16,900,000
Impairment on long-lived assets			0
Impairment of indefinite-lived intangible assets			6,890,000		6,890,000
Level 3 \| Discount Rate \| Discounted Cash Flow
Goodwill And Intangible Assets [Line Items]
Measurement of fair value inputs				12.00%
Level 3 \| Long-term Revenue Growth Rate \| Discounted Cash Flow \| Minimum
Goodwill And Intangible Assets [Line Items]
Measurement of fair value inputs				2.00%
Level 3 \| Long-term Revenue Growth Rate \| Discounted Cash Flow \| Maximum
Goodwill And Intangible Assets [Line Items]
Measurement of fair value inputs				3.00%
Casinos
Goodwill And Intangible Assets [Line Items]
Goodwill	60,300,000		60,300,000		60,300,000
Impairment of goodwill				$ 25,300,000
Impairment of indefinite-lived intangible assets				$ 2,600,000
Distributed Gaming
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 98,100,000		$ 98,100,000		$ 98,100,000