Segments - Income by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues:
Rental revenue	$ 46,903	$ 41,515
Total revenues	54,397	46,746
Operating expenses:
General and administrative	5,269	4,763
Depreciation and amortization	9,704	8,236
Total operating expenses	23,705	18,860
Interest expense	(8,375)	(7,633)
Other income	57	1
Realized gain (losses) from operations		431
Income tax expense	(88)	(63)
Net income	22,286	20,622
Real Estate Operations
Revenues:
Rental revenue	46,903	41,515
Restaurant Operations
Revenues:
Rental revenue	0	0
Operating Segments | Real Estate Operations
Revenues:
Total revenues	47,114	41,654
Operating expenses:
General and administrative	5,269	4,763
Depreciation and amortization	9,524	7,994
Total operating expenses	16,642	13,759
Interest expense	(8,375)	(7,633)
Other income	57	1
Realized gain (losses) from operations		431
Income tax expense	(48)	(39)
Net income	22,106	20,655
Operating Segments | Restaurant Operations
Revenues:
Total revenues	7,494	5,231
Operating expenses:
General and administrative	0	0
Depreciation and amortization	180	242
Total operating expenses	7,274	5,240
Interest expense	0	0
Other income	0	0
Realized gain (losses) from operations		0
Income tax expense	(40)	(24)
Net income	180	(33)
Intersegment Eliminations
Revenues:
Rental revenue	(211)	(139)
Total revenues	(211)	(139)
Operating expenses:
General and administrative	0	0
Depreciation and amortization	0	0
Total operating expenses	(211)	(139)
Interest expense	0	0
Other income	0	0
Realized gain (losses) from operations		0
Income tax expense	0	0
Net income	0	0
Restaurant
Revenues:
Restaurant revenue	7,494	5,231
Operating expenses:
Expenses	6,883	4,859
Restaurant | Operating Segments | Real Estate Operations
Revenues:
Restaurant revenue	0	0
Operating expenses:
Expenses	0	0
Restaurant | Operating Segments | Restaurant Operations
Revenues:
Restaurant revenue	7,494	5,231
Operating expenses:
Expenses	7,094	4,998
Restaurant | Intersegment Eliminations
Operating expenses:
Expenses	(211)	(139)
Property
Operating expenses:
Expenses	1,849	1,002
Property | Operating Segments | Real Estate Operations
Operating expenses:
Expenses	1,849	1,002
Property | Operating Segments | Restaurant Operations
Operating expenses:
Expenses	0	0
Property | Intersegment Eliminations
Operating expenses:
Expenses	$ 0	$ 0