Goodwill and Other Intangible Assets - Reporting Units With Negative Carrying Values (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Northeast segment | Hollywood Casino at Charles Town Races
Goodwill [Line Items]
Reporting unit with negative carrying amount, goodwill	$ 8,654
Northeast segment | Hollywood Casino Columbus
Goodwill [Line Items]
Reporting unit with negative carrying amount, goodwill	6,200
Northeast segment | Hollywood Casino Toledo
Goodwill [Line Items]
Reporting unit with negative carrying amount, goodwill	5,800
South segment | Hollywood Casino Gulf Coast
Goodwill [Line Items]
Reporting unit with negative carrying amount, goodwill	2,700
Midwest segment | Argosy Casino Alton
Goodwill [Line Items]
Reporting unit with negative carrying amount, goodwill	11,863
Midwest segment | Hollywood Casino Joliet
Goodwill [Line Items]
Reporting unit with negative carrying amount, goodwill	$ 4,600