Investments in and Advances to Unconsolidated Affiliates - Schedule of Summary Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary financial information
Current assets	$ 2,223.6	$ 2,085.0
Current liabilities	1,133.2	860.0
Revenues	5,905.0	3,578.7	$ 5,301.4
Operating income	1,059.6	(410.2)	571.9
Net income	420.5	(669.1)	43.1
Net income attributable to Penn National	38.7	13.8	28.4
Kansas Entertainment
Summary financial information
Current assets	19.1	14.7
Long-term assets	145.1	151.4
Current liabilities	11.0	10.2
Revenues	149.5	104.2	162.3
Operating expenses	88.7	75.5	101.3
Operating income	60.8	28.7	61.0
Net income	60.8	28.7	61.0
Net income attributable to Penn National	$ 30.4	$ 14.4	$ 30.5