Investment In and Advances to Unconsolidated Affiliates (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) ft² item	Sep. 30, 2017 USD ($)
Summary financial information
Net income attributable to Penn	$ 5,696	$ 4,781	$ 16,791	$ 14,350
Kansas Entertainment
Business ventures
Ownership interest in joint venture under agreement of sale (as a percent)	50.00%		50.00%
Area of Casino (in square foot) | ft²			244,791
Number of slot machines | item			1,988
Number of table games | item			41
Number of poker tables | item			12
Number of space parking | item			1,253
Summary financial information
Net revenues	$ 39,789	38,295	$ 119,280	116,065
Operating expenses	27,408	27,981	82,991	85,171
Income from operations	12,381	10,314	36,289	30,894
Net income	12,381	10,314	36,289	30,894
Net income attributable to Penn	$ 6,191	$ 5,157	$ 18,145	$ 15,447