CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues
Total revenues	$ 3,578.7	$ 5,301.4	$ 3,587.9
Operating expenses
General and administrative	1,130.8	1,187.7	618.9
Depreciation and amortization	366.7	414.2	269.0
Impairment losses	623.4	173.1	34.9
Recoveries on loan loss and unfunded loan commitments	0.0	0.0	(17.0)
Total operating expenses	3,988.9	4,729.5	2,953.8
Operating income (loss)	(410.2)	571.9	634.1
Other income (expenses)
Interest expense, net	(543.2)	(534.2)	(538.4)
Income from unconsolidated affiliates	13.8	28.4	22.3
Loss on early extinguishment of debt	(1.2)	0.0	(21.0)
Other	106.6	20.0	(7.1)
Total other expenses	(424.0)	(485.8)	(544.2)
Income (loss) before income taxes	(834.2)	86.1	89.9
Income tax benefit (expense)	165.1	(43.0)	3.6
Net income (loss)	(669.1)	43.1	93.5
Less: Net (income) loss attributable to non-controlling interest	(0.4)	0.8	0.0
Net income (loss) attributable to Penn National	(669.5)	43.9	93.5
Comprehensive income (loss)	(669.1)	43.1	93.5
Less: Comprehensive loss attributable to non-controlling interest	(0.4)	0.8	0.0
Comprehensive income attributable to Penn National	$ (669.5)	$ 43.9	$ 93.5
Earnings Per Share [Abstract]
Basic earnings (loss) per share (in dollars per share)	$ (5.00)	$ 0.38	$ 0.96
Diluted earnings (loss) per share (in dollars per share)	$ (5.00)	$ 0.37	$ 0.93
Weighted-average common shares outstanding - basic (in shares)	134.0	115.7	97.1
Weighted-average common shares outstanding - diluted (in shares)	134.0	117.8	100.3
Gaming
Revenues
Total revenues	$ 3,051.1	$ 4,268.7	$ 2,894.9
Operating expenses
Cost of revenue	1,530.3	2,281.8	1,551.4
Food, beverage, hotel and other
Revenues
Total revenues	527.6	1,032.7	629.7
Operating expenses
Cost of revenue	337.7	672.7	439.3
Management service and license fees
Revenues
Total revenues	0.0	0.0	6.0
Reimbursable management costs
Revenues
Total revenues	0.0	0.0	57.3
Operating expenses
Cost of revenue	$ 0.0	$ 0.0	$ 57.3