CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock, Non-Exchangeable	Total PENN Stockholders’ Equity	Total PENN Stockholders’ Equity Cumulative Effect, Period of Adoption, Adjustment	Preferred Stock	Common Stock Common Stock, Non-Exchangeable	Common Stock Common Stock, Exchangeable	Treasury Stock	Additional Paid-In Capital	Additional Paid-In Capital Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings (Accumulated Deficit)	Retained Earnings (Accumulated Deficit) Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss	Non-Controlling Interest
Beginning balance (in shares) at Dec. 31, 2020						883
Beginning balance (in shares) at Dec. 31, 2020							155,700,834	0
Beginning balance at Dec. 31, 2020	$ 2,655.8			$ 2,656.2		$ 23.1	$ 1.6	$ 0.0	$ (28.4)	$ 3,167.2		$ (507.3)		$ 0.0	$ (0.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation arrangements (in shares)							891,155
Share-based compensation arrangements	13.4			13.4						13.4
Preferred stock conversions/ Conversion of Preferred Stock (in shares)						(151)	151,200
Preferred stock conversions/ Conversion of Preferred Stock	0.0			0.0		$ (4.0)				4.0
Stock issuance (Note 13) (in shares)						43	43,684
Stock issuance (Note 13)	8.6			8.6		$ 5.1				3.5
Currency translation adjustment	0.0
Net income	289.6			289.7								289.7			(0.1)
Other	(9.6)			(9.6)						(9.6)
Ending balance (in shares) at Jun. 30, 2021						775
Ending balance (in shares) at Jun. 30, 2021							156,786,873	0
Ending balance at Jun. 30, 2021	$ 2,957.8			2,958.3		$ 24.2	$ 1.6	$ 0.0	(28.4)	3,178.5		(217.6)		0.0	(0.5)
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2020-06 [Member]
Beginning balance (in shares) at Dec. 31, 2020						883
Beginning balance (in shares) at Dec. 31, 2020							155,700,834	0
Beginning balance at Dec. 31, 2020	$ 2,655.8			2,656.2		$ 23.1	$ 1.6	$ 0.0	(28.4)	3,167.2		(507.3)		0.0	(0.4)
Ending balance (in shares) at Dec. 31, 2021						775
Ending balance (in shares) at Dec. 31, 2021			169,561,883				169,561,883	653,059
Ending balance at Dec. 31, 2021	4,097.1	$ (69.3)		4,097.8	$ (69.3)	$ 25.8	$ 1.7	$ 0.0	(28.4)	4,239.6	$ (88.2)	(86.5)	$ 18.9	(54.4)	(0.7)
Beginning balance (in shares) at Mar. 31, 2021						775
Beginning balance (in shares) at Mar. 31, 2021							156,330,141	0
Beginning balance at Mar. 31, 2021	2,755.8			2,756.3		$ 24.2	$ 1.6	$ 0.0	(28.4)	3,175.2		(416.3)		0.0	(0.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation arrangements (in shares)							413,048
Share-based compensation arrangements	9.4			9.4						9.4
Stock issuance (Note 13) (in shares)							43,684
Stock issuance (Note 13)	3.5			3.5						3.5
Currency translation adjustment	0.0
Net income	198.7			198.7								198.7
Other	(9.6)			(9.6)						(9.6)
Ending balance (in shares) at Jun. 30, 2021						775
Ending balance (in shares) at Jun. 30, 2021							156,786,873	0
Ending balance at Jun. 30, 2021	2,957.8			2,958.3		$ 24.2	$ 1.6	$ 0.0	(28.4)	3,178.5		(217.6)		0.0	(0.5)
Beginning balance (in shares) at Dec. 31, 2021						775
Beginning balance (in shares) at Dec. 31, 2021			169,561,883				169,561,883	653,059
Beginning balance at Dec. 31, 2021	4,097.1	$ (69.3)		4,097.8	$ (69.3)	$ 25.8	$ 1.7	$ 0.0	(28.4)	4,239.6	$ (88.2)	(86.5)	$ 18.9	(54.4)	(0.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation arrangements (in shares)							218,824
Share-based compensation arrangements	$ 31.5			31.5						31.5
Share repurchases (Note 13) (in shares)	(9,341,585)						(9,341,585)
Share repurchases (Note 13)	$ (342.1)			(342.1)					(342.1)
Preferred stock conversions/ Conversion of Preferred Stock (in shares)						(194)	194,200
Preferred stock conversions/ Conversion of Preferred Stock	0.0					$ (6.4)				6.4
Stock issuance (Note 13) (in shares)							64,000
Stock issuance (Note 13)	2.0			2.0						2.0
Exchangeable shares conversions (Note 13) (in shares)							28,401	(28,401)
Currency translation adjustment	(26.9)			(26.9)										(26.9)
Net income	77.7			77.8								77.8			(0.1)
Other	(4.0)			(4.0)						(4.0)
Ending balance (in shares) at Jun. 30, 2022						581
Ending balance (in shares) at Jun. 30, 2022			160,725,723				160,725,723	624,658
Ending balance at Jun. 30, 2022	3,766.0			3,766.8		$ 19.4	$ 1.7	$ 0.0	(370.5)	4,187.3		10.2		(81.3)	(0.8)
Beginning balance (in shares) at Mar. 31, 2022						581
Beginning balance (in shares) at Mar. 31, 2022							166,161,818	633,189
Beginning balance at Mar. 31, 2022	3,952.7			3,953.5		$ 19.4	$ 1.7	$ 0.0	(203.5)	4,170.4		(15.9)		(18.6)	(0.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation arrangements (in shares)							30,551
Share-based compensation arrangements	$ 14.5			14.5						14.5
Share repurchases (Note 13) (in shares)	(5,539,177)						(5,539,177)
Share repurchases (Note 13)	$ (167.0)			(167.0)					(167.0)
Stock issuance (Note 13) (in shares)							64,000
Stock issuance (Note 13)	2.0			2.0						2.0
Exchangeable shares conversions (Note 13) (in shares)							8,531	(8,531)
Currency translation adjustment	(62.7)			(62.7)										(62.7)
Net income	26.1			26.1								26.1
Other	0.4			0.4						0.4
Ending balance (in shares) at Jun. 30, 2022						581
Ending balance (in shares) at Jun. 30, 2022			160,725,723				160,725,723	624,658
Ending balance at Jun. 30, 2022	$ 3,766.0			$ 3,766.8		$ 19.4	$ 1.7	$ 0.0	$ (370.5)	$ 4,187.3		$ 10.2		$ (81.3)	$ (0.8)