Schedule of Dividends [Line Items]

No definition available.

Name:	glpi_ScheduleOfDividendsLineItems
Namespace Prefix:	glpi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1

+ Details

Name:	us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

+ Details

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

+ References

+ Details

Name:	us-gaap_DividendsCommonStockCash
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of paid and unpaid cash, stock, and paid-in-kind dividends declared for award under share-based payment arrangement.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-15

+ Details

Name:	us-gaap_PaymentsOfDividendsCommonStock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	glpi_TriggeringEventAxis=glpi_SpecialEarningsAndProfitDividendMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=glpi_SpecialEarningsAndProfitDividendMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=glpi_SpecialEarningsAndProfitDividendDomain
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Shareholders' Equity (Dividends Declared and Paid) (Details) - USD ($)																													12 Months Ended
	Dec. 22, 2023	Nov. 22, 2023	Sep. 29, 2023	Aug. 30, 2023	Jun. 30, 2023	Jun. 01, 2023	Mar. 24, 2023	Mar. 10, 2023	Feb. 22, 2023	Dec. 23, 2022	Nov. 23, 2022	Sep. 30, 2022	Aug. 31, 2022	Jun. 24, 2022	May 09, 2022	Mar. 25, 2022	Feb. 24, 2022	Jan. 07, 2022	Dec. 27, 2021	Dec. 23, 2021	Dec. 17, 2021	Nov. 29, 2021	Sep. 24, 2021	Aug. 27, 2021	Jun. 25, 2021	May 20, 2021	Mar. 23, 2021	Feb. 22, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Dividends [Line Items]
Common stock, cash dividends declared (in dollars per share)				$ 0.73				$ 0.72	$ 0.72				$ 0.705				$ 0.69		$ 0.24		$ 0.24							$ 0.65
Common stock, cash dividends paid (in dollars per share)		$ 0.73				$ 0.72					$ 0.705				$ 0.705							$ 0.67		$ 0.67		$ 0.67			$ 3.15	$ 2.85	$ 2.86
Dividend Amount	$ 197,384,000		$ 192,085,000		$ 189,095,000		$ 188,896,000			$ 183,813,000		$ 181,549,000		$ 174,519,000		$ 170,805,000				$ 165,628,000			$ 159,426,000		$ 156,876,000		$ 151,308,000
Dividends, Common Stock, Cash																													$ 3.150	$ 2.805	$ 2.900
Dividends, share-based compensation																													$ 900,000	$ 800,000	$ 700,000
Special earnings and profit dividend
Schedule of Dividends [Line Items]
Dividend Amount							$ 65,588,000											$ 59,330,000
Special earnings and profit dividend
Schedule of Dividends [Line Items]
Common stock, cash dividends declared (in dollars per share)									$ 0.25												$ 0.24
Special earnings and profit dividend [Domain]
Schedule of Dividends [Line Items]
Common stock, cash dividends declared (in dollars per share)								$ 0.25