Investment in Unconsolidated Affiliates (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) ft² item	Jun. 30, 2015 USD ($)
Summary financial information
Net income attributable to Penn	$ 3,548	$ 4,154	$ 8,157	$ 8,136
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			2,000
Number of table games | item			40
Number of poker tables | item			12
Number of space parking | item			1,253
Summary financial information
Net revenues	$ 37,872	39,780	$ 77,754	78,739
Operating expenses	30,384	30,978	60,829	62,361
Income from operations	7,488	8,802	16,925	16,378
Net income	7,488	8,802	16,925	16,378
Net income attributable to Penn	$ 3,744	$ 4,401	$ 8,462	$ 8,189