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Discontinued Operations - Additional Information (Details)
$ / a in Millions, $ in Millions
Mar. 25, 2021
USD ($)
Mar. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Nov. 22, 2021
USD ($)
a
$ / a
Sep. 29, 2021
USD ($)
a
Kater And Thimmegowda Litigation          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Litigation settlement $ 124.0        
Arlington Property | Disposal Group, Held-for-sale, Not Discontinued Operations          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Area of land | a         326
Purchase price         $ 197.2
Arlington International Racecourse | Disposal Group, Held-for-sale, Not Discontinued Operations          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Asset held for sale   $ 81.5 $ 81.5    
Calder Property | Disposal Group, Held-for-sale, Not Discontinued Operations          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Area of land | a       115.7  
Purchase price       $ 291.0  
Asset held for sale   $ 6.3 $ 6.3    
Sale agreement, per acre | $ / a       2.5