Management Agreements and Leases Management Agreements and Leases - Other Net Lease Agreements (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019 USD ($) travel_center lease_agreement	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) travel_center lease_agreement	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Lessee, Lease, Description [Line Items]
Revenues	$ 580,906	$ 599,772	$ 610,562	$ 524,908	$ 550,799	$ 603,153	$ 611,951	$ 528,633	$ 2,316,148	$ 2,294,536	$ 2,171,935
Straight line rent adjustments									(10,719)	12,509	12,378
Right of use asset	75,040								75,040
Lease liability	$ 75,040								75,040
Hotel operating revenues
Lessee, Lease, Description [Line Items]
Rental expense related to operating leases									$ 13,892
Number of properties on leased land | lease_agreement	14								14
Travel centers
Lessee, Lease, Description [Line Items]
Number of properties on leased land | travel_center	17								17
Travel centers | Land
Lessee, Lease, Description [Line Items]
Rental expense related to operating leases									$ 508
Lease term	12 years								12 years
Travel centers | Minimum | Land
Lessee, Lease, Description [Line Items]
Lease term	2 years								2 years
Travel centers | Maximum | Land
Lessee, Lease, Description [Line Items]
Lease term	31 years								31 years
SMTA Transaction
Lessee, Lease, Description [Line Items]
Straight line rent adjustments						$ 2,160
Rental income
Lessee, Lease, Description [Line Items]
Revenues									$ 322,236	$ 330,806	$ 326,436
Rental income | SMTA Transaction
Lessee, Lease, Description [Line Items]
Revenues		$ 46,861