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Percentage of award which can potentially be earned over the award period of share-based compensation awards.

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Stock Repurchase Program, Authorization Period

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Amount of cash paid to settle liability for award under share-based payment arrangement.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Stockholders’ Equity and Stock-Based Compensation (Details) $ / shares in Units, $ in Millions							1 Months Ended		3 Months Ended				12 Months Ended	15 Months Ended
	Feb. 01, 2022 USD ($)	Oct. 19, 2021 USD ($) $ / shares shares	Aug. 01, 2021 USD ($) shares	May 11, 2021 USD ($) shares	Apr. 12, 2021 USD ($) tranche shares	Feb. 20, 2020 $ / shares shares	Feb. 29, 2020	Feb. 28, 2019 shares	Mar. 31, 2022 USD ($) performance_period $ / shares shares	Sep. 30, 2021	Jun. 30, 2021 USD ($) agreement	Mar. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Mar. 31, 2022 USD ($) $ / shares shares	May 05, 2022 USD ($)	Jun. 17, 2021 shares	Jun. 16, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in shares)																400,000,000	200,000,000
Preferred stock, par value (in dollars per share) \| $ / shares												$ 0.01	$ 0.01
Authorized amount under share repurchase program \| $	$ 750.0
Stock repurchase program, authorization period	3 years
Share repurchases (in shares)									(3,802,408)
Share repurchases \| $									$ 175.1
Average price paid per share of common stock repurchased (in dollars per share) \| $ / shares									$ 46.04
Share issuance (in shares)									194,200			151,200
Stock-based compensation expense (reduction to expense) \| $									$ 17.0			$ 4.2
Stock options granted (in shares)									393,049			229,361
Shareholders \| Note Payable Agreements
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of agreements \| agreement											2
Amount from agreements \| $											$ 9.0
Interest rate											2.25%
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award period									3 years
Number of annual award performance periods \| performance_period									3
Service period									1 year
Vesting period									3 years
Performance Shares \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of award which can potentially be earned									50.00%
Performance Shares \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of award which can potentially be earned									150.00%
Cash-settled Phantom Stock Units (CPSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized compensation costs, weighted average period of recognition									1 year
Stock-based compensation expense (reduction to expense) \| $									$ 0.6			$ 4.7
Liability for cash-settled awards \| $									1.8				$ 8.6	$ 1.8
Unrecognized compensation cost, other awards \| $									9.5					9.5
Amounts paid on cash-settled awards \| $									$ 7.4			5.9
Cash-settled Phantom Stock Units (CPSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									3 years
Cash-settled Phantom Stock Units (CPSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									4 years
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized compensation costs, weighted average period of recognition									2 years 2 months 12 days
Stock-based compensation expense (reduction to expense) \| $									$ 0.0			20.3
Vesting period									4 years
Liability for cash-settled awards \| $									$ 16.9				$ 18.5	16.9
Unrecognized compensation cost, other awards \| $									21.9					$ 21.9
Amounts paid on cash-settled awards \| $									$ 0.2			$ 37.2
2018 Long Term Incentive Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for awards, up to (in shares)									12,700,000					12,700,000
Common stock counted against the maximum shares available for grant for each share awarded under the plan (in shares)									1
Shares available for future grants (in shares)									2,969,937					2,969,937
2018 Long Term Incentive Compensation Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock counted against the maximum shares available for grant for each share awarded under the plan (in shares)									2.30
2018 Long Term Incentive Compensation Plan \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)					600,000
Fair value of stock awards \| $					$ 29.3
Number of tranches \| tranche					4
2018 Long Term Incentive Compensation Plan \| Restricted Stock Units (RSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized compensation costs, weighted average period of recognition					6 years 8 months 12 days
2018 Long Term Incentive Compensation Plan \| Restricted Stock Units (RSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized compensation costs, weighted average period of recognition					8 years 8 months 12 days
2018 Long Term Incentive Compensation Plan \| Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)					300,000
Fair value of stock awards \| $					$ 19.4
Number of tranches \| tranche					15
2018 Long Term Incentive Compensation Plan \| Restricted Stock Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized compensation costs, weighted average period of recognition					2 years 2 months 12 days
2018 Long Term Incentive Compensation Plan \| Restricted Stock Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized compensation costs, weighted average period of recognition					6 years
2018 Long Term Incentive Compensation Plan \| Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of stock awards \| $					$ 48.7
Stock-based compensation expense (reduction to expense) \| $									$ 2.1
theScore Long Term Incentive Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants (in shares)									232,913					232,913
theScore Long Term Incentive Compensation Plan \| Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested stock options (in shares)									853,904
Performance Share Program \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)								238,784
Performance Share Program II \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)												0
Barstool Sports, Inc
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity method investment, ownership percentage										0.30%		0.30%	0.60%
Investment acquired, percent, delayed basis							1.00%			1.00%
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized amount under share repurchase program \| $															$ 574.9
Common Stock, Exchangeable
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in shares)									697,539				697,539	697,539
Series D Preferred Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, par value (in dollars per share) \| $ / shares						$ 0.01			$ 0.01				$ 0.01	$ 0.01
Share issuance (in shares)						883			0				86
Convertible debt issuance (in shares)									194			151		388
Preferred stock, shares authorized (in shares)									5,000				5,000	5,000
Preferred stock, shares outstanding (in shares)									581				775	581
Series D Preferred Stock \| Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share issuance (in shares)									388,400
HitPoint
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Business acquisition, equity interest Issued or issuable (in shares)			198,103	43,684
Share issuance in connection with acquisitions \| $				$ 3.5
Business combination, consideration transferred, equity interests issued and issuable \| $				$ 3.5
Sam Houston Race Park and Valley Race Park
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Business combination, consideration transferred, equity interests issued and issuable \| $			$ 15.8
Score Media and Gaming Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, par value (in dollars per share) \| $ / shares		$ 0.01
Exchangeable stock, shares issued (in shares)									633,189					633,189
Exchangeable stock, shares outstanding (in shares)									653,059					653,059
Score Media and Gaming Inc. \| Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Business acquisition, equity interest Issued or issuable (in shares)		12,319,340
Score Media and Gaming Inc. \| Common Stock, Exchangeable
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Business combination, consideration transferred, equity interests issued and issuable \| $		$ 1,000.0
Business acquisition, equity interest Issued or issuable (in shares)		697,539