CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Millions	Total	Common Stock, Non-Exchangeable	Common Stock, Exchangeable	Total PENN Stockholders’ Equity	Preferred Stock	Common Stock Common Stock, Non-Exchangeable	Common Stock Common Stock, Exchangeable	Treasury Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Non-Controlling Interest
Beginning balance (in shares) at Dec. 31, 2022					581
Beginning balance at Dec. 31, 2022	$ 3,596.6			$ 3,597.7	$ 19.4	$ 1.7	$ 0.0	$ (629.5)	$ 4,220.2	$ 154.5	$ (168.6)	$ (1.1)
Beginning balance (in shares) at Dec. 31, 2022						152,903,708	620,019
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation arrangements (in shares)						171,830
Share-based compensation arrangements	36.2			36.2					36.2
Share issuance in connection with acquisitions (in shares)						2,442,809
Share issuance in connection with acquisitions	$ 80.8			80.8					80.8
Share repurchases (in shares)	(5,438,221)					(5,438,221)
Share repurchases	$ (149.8)			(149.8)				(149.8)
Preferred stock conversions (in shares)					(227)	226,800
Preferred stock conversions	0.0				$ (7.6)				7.6
Common stock issuance & Exchangeable share issuance (in shares)						4,055	2,854
Common stock issuance & Exchangeable share issuance	0.1			0.1					0.1
Exchangeable share conversions (in shares)						62,485	(62,485)
Currency translation adjustment	44.6			44.6							44.6
Net income (loss)	592.5			592.9						592.9		(0.4)
Other	7.8			7.8		$ 0.1		(0.4)	8.1
Ending balance (in shares) at Jun. 30, 2023					354
Ending balance (in shares) at Jun. 30, 2023						150,373,466	560,388
Ending balance at Jun. 30, 2023	4,208.8			4,210.3	$ 11.8	$ 1.8	$ 0.0	(779.7)	4,353.0	747.4	(124.0)	(1.5)
Beginning balance (in shares) at Mar. 31, 2023					354
Beginning balance at Mar. 31, 2023	4,175.1			4,176.3	$ 11.8	$ 1.8	$ 0.0	(679.5)	4,333.6	669.0	(160.4)	(1.2)
Beginning balance (in shares) at Mar. 31, 2023						154,136,908	560,758
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation arrangements (in shares)						23,391
Share-based compensation arrangements	$ 19.7			19.7					19.7
Share repurchases (in shares)	(3,791,258)					(3,791,258)
Share repurchases	$ (99.8)			(99.8)				(99.8)
Common stock issuance & Exchangeable share issuance (in shares)						4,055
Common stock issuance & Exchangeable share issuance	0.1			0.1					0.1
Exchangeable share conversions (in shares)						370	(370)
Currency translation adjustment	36.4			36.4							36.4
Net income (loss)	78.1			78.4						78.4		(0.3)
Other	(0.8)			(0.8)				(0.4)	(0.4)
Ending balance (in shares) at Jun. 30, 2023					354
Ending balance (in shares) at Jun. 30, 2023						150,373,466	560,388
Ending balance at Jun. 30, 2023	4,208.8			4,210.3	$ 11.8	$ 1.8	$ 0.0	(779.7)	4,353.0	747.4	(124.0)	(1.5)
Beginning balance (in shares) at Dec. 31, 2023					0
Beginning balance at Dec. 31, 2023	3,199.6			3,202.1	$ 0.0	$ 1.8	$ 0.0	(779.5)	4,436.6	(335.5)	(121.3)	(2.5)
Beginning balance (in shares) at Dec. 31, 2023		151,552,694	560,267			151,552,694	560,267
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation arrangements (in shares)						401,398
Share-based compensation arrangements	26.1			26.1					26.1
Share issuance in connection with acquisitions (in shares)						4,055
Share issuance in connection with acquisitions	$ 0.1			0.1					0.1
Share repurchases (in shares)	0
Common stock issuance & Exchangeable share issuance (in shares)							68,048
Exchangeable share conversions (in shares)						158,437	(158,437)
Investment Agreement warrants (Note 11)	$ 28.7			28.7					28.7
Currency translation adjustment	(55.5)			(55.5)							(55.5)
Net income (loss)	(142.0)			(141.5)						(141.5)		(0.5)
Other	(4.1)			(4.1)					(4.1)
Ending balance (in shares) at Jun. 30, 2024					0
Ending balance (in shares) at Jun. 30, 2024		152,116,584	469,878			152,116,584	469,878
Ending balance at Jun. 30, 2024	3,052.9			3,055.9	$ 0.0	$ 1.8	$ 0.0	(779.5)	4,487.4	(477.0)	(176.8)	(3.0)
Beginning balance (in shares) at Mar. 31, 2024					0
Beginning balance at Mar. 31, 2024	3,072.0			3,074.7	$ 0.0	$ 1.8	$ 0.0	(779.5)	4,459.9	(450.2)	(157.3)	(2.7)
Beginning balance (in shares) at Mar. 31, 2024						151,870,805	557,174
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation arrangements (in shares)						154,428
Share-based compensation arrangements	$ 14.2			14.2					14.2
Share repurchases (in shares)	0
Common stock issuance & Exchangeable share issuance (in shares)						4,055
Common stock issuance & Exchangeable share issuance	$ 0.1			0.1					0.1
Exchangeable share conversions (in shares)						87,296	(87,296)
Investment Agreement warrants (Note 11)	14.4			14.4					14.4
Currency translation adjustment	(19.5)			(19.5)							(19.5)
Net income (loss)	(27.1)			(26.8)						(26.8)		(0.3)
Other	(1.2)			(1.2)					(1.2)
Ending balance (in shares) at Jun. 30, 2024					0
Ending balance (in shares) at Jun. 30, 2024		152,116,584	469,878			152,116,584	469,878
Ending balance at Jun. 30, 2024	$ 3,052.9			$ 3,055.9	$ 0.0	$ 1.8	$ 0.0	$ (779.5)	$ 4,487.4	$ (477.0)	$ (176.8)	$ (3.0)