Stockholders' Equity (Deficit) (Details) - USD ($)						1 Months Ended	12 Months Ended
	Jun. 15, 2017	Oct. 16, 2013	Oct. 11, 2013	Oct. 30, 2008	Jul. 03, 2008	Feb. 28, 2013	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2010	Feb. 03, 2017
Class of Stock [Line Items]
Authorized amount under share repurchase program											$ 100,000,000
Repurchases of common stock (in shares)							2,299,498	1,264,149
Repurchases of common stock							$ 50,046,000	$ 24,796,000
Average price paid per share of common stock repurchased (in dollars per share)							$ 21.74	$ 19.59
Consideration that the shareholders would have received under merger agreement before termination (in dollars per share)	$ 67
Consideration from the termination of the Merger Agreement					$ 1,475,000,000
Non-refundable cash termination fee from the termination of the Merger Agreement					225,000,000
Investment in preferred equity from the termination of the Merger Agreement					$ 1,250,000,000
Fortress | GLPI common stock
Class of Stock [Line Items]
Threshold ownership percentage following Spin-Off per Exchange Agreement		9.90%
Common Stock
Class of Stock [Line Items]
Repurchases of common stock (in shares)							2,299,498	1,264,149
Repurchases of common stock							$ 23,000	$ 13,000
Conversion of Series C preferred stock (in shares)									8,624,000
Series B Preferred stock
Class of Stock [Line Items]
Issuance of stock (in shares)				12,500
Repurchases of preferred stock (in shares)			2,300			225				225
Repurchases of preferred stock			$ 649,500,000							$ 11,200,000
Preferred stock, shares outstanding (in shares)							0	0
Series B Preferred stock | Fortress
Class of Stock [Line Items]
Shares of stock provided with the right to exchange as per the Exchange Agreement (in shares)		9,750
Ceiling price at which the shares of preferred stock are redeemable at maturity (in dollars per share)		$ 67
Series C Preferred stock
Class of Stock [Line Items]
Issuance of stock (in shares)			14,553
Repurchases of preferred stock (in shares)			5,929
Conversion of Series C preferred stock (in shares)									8,624
Preferred stock, shares outstanding (in shares)							0	0
Series C Preferred stock | Fortress
Class of Stock [Line Items]
Repurchase price of preferred stock (in dollars per share)		$ 67