Commitments and Contingencies (Capital Expenditure Commitments) (Details)	Dec. 31, 2015 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Construction program capital expenditures for next fiscal year	$ 0

The amount of capital expenditures under the entity's construction program for the next fiscal year.

No definition available.

Name:	glpi_ConstructionProgramCapitalExpendituresForNextFiscalYear
Namespace Prefix:	glpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant