Investments in and Advances to Unconsolidated Affiliates - Schedule of Summary Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Summary financial information
Current assets	$ 1,154.4	$ 1,659.0
Current liabilities	1,415.1	1,490.0
Revenues	6,578.1	6,362.9	$ 6,401.7
Operating expenses	6,505.6	7,053.1	5,427.7
Operating income	72.5	(690.2)	974.0
Net income (loss)	(313.3)	(491.4)	221.7
Net income attributable to PENN Entertainment, Inc.	(311.5)	(490.0)	222.1
Kansas Entertainment
Summary financial information
Current assets	24.1	24.1
Long-term assets	139.5	144.0
Current liabilities	16.2	21.0
Revenues	175.9	170.8	161.9
Operating expenses	109.1	105.6	99.0
Operating income	66.8	65.2	62.9
Net income (loss)	66.9	65.2	62.9
Net income attributable to PENN Entertainment, Inc.	$ 33.5	$ 32.6	$ 31.5