Investment In and Advances to Unconsolidated Affiliates (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) ft² item	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)
Business ventures
Investment in unconsolidated affiliates	$ 147,658		$ 148,912
Distributions from unconsolidated affiliates	6,500	$ 5,750
Summary financial information
Net income attributable to Penn	$ 5,361	4,548
Kansas Entertainment
Business ventures
Ownership interest in joint venture under agreement of sale (as a percent)	50.00%
Area of Casino (in square foot) | ft²	244,791
Number of slot machines | item	2,000
Number of table games | item	41
Number of poker tables | item	12
Number of space parking | item	1,253
Summary financial information
Net revenues	$ 39,285	38,846
Operating expenses	27,658	28,838
Income from operations	11,627	10,008
Net income	11,627	10,008
Net income attributable to Penn	$ 5,814	$ 5,004