Management Agreements and Leases - TA Leases (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2023 USD ($)	Dec. 31, 2024 USD ($) property leaseOption	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Management Agreements and Leases [Line Items]
Number of properties | property		948
Rental income		$ 400,223	$ 395,829	$ 395,667
Straight line rent adjustments		18,541	13,165	(7,767)
Reduction (increase) of rental income		(2,158)	(4,927)	320
COVID-19
Management Agreements and Leases [Line Items]
Reserves for uncollectible rents		5,058	3,436
TravelCenters of America Inc.
Management Agreements and Leases [Line Items]
Monthly rent credit amount		$ 25,000
Lease term (in years)		10 years
Deferred percentage rental income			3,507	10,578
BP Products North America Inc.
Management Agreements and Leases [Line Items]
Guarantee obligations		$ 3,037,475
SMTA Transaction
Management Agreements and Leases [Line Items]
Rental income		128,889	129,566	135,522
Straight line rent adjustments		$ 4,269	5,233	5,367
Net Lease
Management Agreements and Leases [Line Items]
Number of properties | property		742
Annual minimum returns and rents		$ 380,863
Net Lease | TravelCenters of America Inc. | Related Party
Management Agreements and Leases [Line Items]
Number of properties | property		175
Travel Centers | TravelCenters of America Inc.
Management Agreements and Leases [Line Items]
Renewal options | leaseOption		5
Annual minimum returns and rents		$ 259,080
Lease term (in years)		10 years
Rental income		$ 271,334	266,263	259,093
Straight line rent adjustments		14,272	7,932	$ (13,143)
Quarterly payments to deferred rent receivable	$ 4,404
Accruals for unpaid rent, including deferred rents		$ 40,097	$ 19,816
TravelCenters of America LLC | Net Lease | Real Estate Assets at Cost | Credit Concentration | TravelCenters of America Inc. | Related Party
Management Agreements and Leases [Line Items]
Concentration risk (as percent)		28.70%