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Other Investments (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 27, 2020	Mar. 31, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	May 15, 2023
Schedule of Equity Method Investments [Line Items]
Equity method investment			$ 108,106		$ 108,106		$ 113,304
Investment (losses) earnings in an investee			(2,716)	$ 517	(8,054)	$ (3,704)
Capital contribution funded					3,392	0
TravelCenters of America Inc. | BP Products North America Inc.
Schedule of Equity Method Investments [Line Items]
Business acquisition, share price (in dollars per share)								$ 86.00
Travel Centers of America
Schedule of Equity Method Investments [Line Items]
Number of common shares owned (in shares)								1,184,797
Percentage of total shares outstanding (in percent)								7.80%
Sonesta Int'l Hotels Corp
Schedule of Equity Method Investments [Line Items]
Investment (losses) earnings in an investee			(2,716)	517	(8,054)	(3,704)
Decrease in hotel operating expense			621	621	1,242	1,242
Capital contribution funded		$ 3,392
Travel Centers of America
Schedule of Equity Method Investments [Line Items]
Historical cost of securities							24,418	$ 24,418
Carrying value of investment								$ 101,893
(Loss) gain on equity securities				(593)		48,837
Sonesta agreements
Schedule of Equity Method Investments [Line Items]
Equity method investment			108,106		108,106		113,304
Amount of cost basis exceeding book value	$ 8,000
Amortization period	31 years
Amortization of basis difference			65	$ 65	130	$ 130
Accounts payable and other liabilities			42,000		42,000
Unamortized balance			$ 31,237		$ 31,237		$ 32,479
Sonesta Int'l Hotels Corp
Schedule of Equity Method Investments [Line Items]
Noncontrolling interest, ownership percentage (in percent)			34.00%		34.00%		34.00%

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