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Stockholders’ Equity and Stock-Based Compensation (Details) $ / shares in Units, $ in Millions |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
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May 11, 2021 USD ($) shares | Apr. 12, 2021 USD ($) tranche shares | May 19, 2020 USD ($) $ / shares shares | May 19, 2020 $ / shares shares | May 14, 2020 shares | Feb. 20, 2020 $ / shares shares | Apr. 30, 2021 shares | Feb. 29, 2020 shares | Jun. 30, 2021 USD ($) agreement $ / shares shares | Mar. 31, 2021 $ / shares shares | Jun. 30, 2020 USD ($) shares | Jun. 30, 2021 USD ($) performance_period $ / shares shares | Jun. 30, 2020 USD ($) shares | Dec. 31, 2020 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share issuance (in shares) | shares |  |  | 2,500,000 | 19,166,667 | 16,666,667 |  |  |  |  | 151,200 |  |  |  |
Shares issued, price (in dollars per share) | $ / shares |  |  | $ 18.00 | $ 18.00 |  |  |  |  |  |  |  |  |  |
Gross proceeds from transaction |  |  | $ 345.0 |  |  |  |  |  |  |  |  |  |  |
Proceeds from common stock offerings, net of discounts and fees |  |  | 331.2 |  |  |  |  |  |  |  |  | $ 0.0 | $ 331.2 |
Payments of stock issuance costs |  |  | $ 13.8 |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) | shares |  |  |  |  |  |  |  |  | 400,000,000 |  |  | 400,000,000 |  | 200,000,000
Preferred stock, par value (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 0.01 |  |  |  |
Stock-based compensation expense (reduction to expense) |  |  |  |  |  |  |  |  | $ 9.2 |  | $ 2.9 | $ 13.4 | $ 8.9 |
Stock options granted (in shares) | shares |  |  |  |  |  |  |  |  | 0.0 |  | 0.0 | 200,000 | 600,000 |
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 |  |  | $ 9.0 |  |
Interest rate |  |  |  |  |  |  |  |  | 2.25% |  |  |  |  |
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 10 months 24 days |  |
Stock-based compensation expense (reduction to expense) |  |  |  |  |  |  |  |  | $ 1.0 |  | $ 1.9 | $ 5.7 | $ 2.0 |
Liability for cash-settled awards |  |  |  |  |  |  |  |  | 9.8 |  |  | 9.8 |  | $ 10.1
Unrecognized compensation cost, other awards |  |  |  |  |  |  |  |  | 12.4 |  |  | 12.4 |  |
Amounts paid on cash-settled awards |  |  |  |  |  |  |  |  |  |  |  | $ 6.0 | 2.8 |
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 3 months 18 days |  |
Vesting period |  |  |  |  |  |  |  |  |  |  |  | 4 years |  |
Stock-based compensation expense (reduction to expense) |  |  |  |  |  |  |  |  | (9.9) |  | $ 17.7 | $ 10.4 | 12.2 |
Liability for cash-settled awards |  |  |  |  |  |  |  |  | 27.7 |  |  | 27.7 |  | $ 54.6
Unrecognized compensation cost, other awards |  |  |  |  |  |  |  |  | $ 50.7 |  |  | 50.7 |  |
Amounts paid on cash-settled awards |  |  |  |  |  |  |  |  |  |  |  | $ 38.0 | $ 10.2 |
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) | 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) | shares |  |  |  |  |  |  |  |  | 5,011,193 |  |  | 5,011,193 |  |
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) | 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) | 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) |  |  |  |  |  |  |  |  | $ 1.9 |  |  | $ 1.9 |  |
Performance Share Program II | Performance Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Awards granted (in shares) | shares |  |  |  |  |  |  | 95,276 | 107,297 |  |  |  |  |  |
Award period |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |
Number of annual award performance periods | performance_period |  |  |  |  |  |  |  |  |  |  |  | 3 |  |
Service period |  |  |  |  |  |  |  |  |  |  |  | 1 year |  |
Vesting period |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |
Performance Share Program II | 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 Share Program II | Performance Shares | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of award which can potentially be earned |  |  |  |  |  |  |  |  |  |  |  | 150.00% |  |
Barstool Sports, Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  |  |  |  |  |  | 0.30% |  |  |  |
Investment acquired, percent, delayed basis |  |  |  |  |  |  |  | 1.00% |  |  |  | 1.00% |  |
Series D Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share issuance (in shares) | shares |  |  |  |  |  | 883 |  |  |  | 43 |  |  |  |
Preferred stock, par value (in dollars per share) | $ / shares |  |  |  |  |  | $ 0.01 |  |  | $ 0.01 |  |  | $ 0.01 |  | $ 0.01
Convertible debt issuance (in shares) | shares |  |  |  |  |  |  |  |  |  | 151.2 |  |  |  |
Preferred stock, shares authorized (in shares) | shares |  |  |  |  |  |  |  |  | 5,000 |  |  | 5,000 |  | 5,000
Preferred stock, shares outstanding (in shares) | shares |  |  |  |  |  |  |  |  | 775 |  |  | 775 |  | 883
HitPoint |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued for acquisition (in shares) | shares | 43,684 |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued for acquisition | $ 3.5 |  |  |  |  |  |  |  |  |  |  |  |  |

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