Schedule IV - Mortgage Loans on Real Estate - Mortgage Loans on Real Estate (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Carrying amount		$ 130,745	$ 87,359	$ 73,102
Balance at January 1,		87,359	73,102	32,246
New mortgage and other loans (1)	[1]	43,519	75,063	55,307
Loan repayments (2)	[2]	(35)	(60,211)	(13,646)
Collections of principal		(98)	(95)	(130)
Allowance for credit losses		0	(500)	(370)
Other adjustments		0	0	(305)
Balance at December 31,		130,745	$ 87,359	$ 73,102
Mortgage Loans [Member]
Face amount		138,818
Carrying amount	[3]	130,745
Allowance for Credit losses:	[3]	(1,300)
Balance at December 31,	[3]	130,745
Retail Site [Member] | Borrower I [Member] | Mortgage Loans [Member]
Face amount	[4]	6,485
Carrying amount	[3],[4]	6,485
Balance at December 31,	[3],[4]	$ 6,485
Retail Site [Member] | Gresham, OR [Member] | Borrower A [Member] | Mortgage Loans [Member]
Interest rate		8.00%
Face amount		$ 25,000
Carrying amount	[3]	25,000
Balance at December 31,	[3]	$ 25,000
Retail Site [Member] | Apopka, FL [Member] | Borrower B [Member] | Mortgage Loans [Member]
Interest rate		14.00%
Face amount		$ 11,211
Carrying amount	[3]	11,211
Balance at December 31,	[3]	$ 11,211
Retail Site [Member] | Lynwood, CA [Member] | Borrower C [Member] | Mortgage Loans [Member]
Interest rate		9.00%
Face amount		$ 16,463
Carrying amount	[3]	16,463
Balance at December 31,	[3]	$ 16,463
Retail Site [Member] | Crystal Lake, IL [Member] | Borrower D [Member] | Mortgage Loans [Member]
Interest rate	[5]	10.50%
Face amount	[5]	$ 7,308
Carrying amount	[3],[5]	7,308
Balance at December 31,	[3],[5]	$ 7,308
Retail Site [Member] | Jacksonville, FL [Member] | Borrower E [Member] | Mortgage Loans [Member]
Interest rate		10.00%
Face amount		$ 15,000
Carrying amount	[3]	15,000
Balance at December 31,	[3]	$ 15,000
Retail Site [Member] | San Antonio, Texas [Member] | Borrower F [Member] | Mortgage Loans [Member]
Interest rate		12.50%
Face amount		$ 21,500
Carrying amount	[3]	16,359
Balance at December 31,	[3]	$ 16,359
Retail Site [Member] | Fairfax, VA [Member] | Borrower G [Member] | Mortgage Loans [Member]
Interest rate		8.00%
Face amount		$ 14,000
Carrying amount	[3]	14,000
Balance at December 31,	[3]	$ 14,000
Retail Site [Member] | Euless, TX [Member] | Borrower H [Member] | Mortgage Loans [Member]
Interest rate		10.00%
Face amount		$ 19,600
Carrying amount	[3]	19,600
Balance at December 31,	[3]	19,600
Nonretail [Member] | Borrower A [Member] | Mortgage Loans [Member]
Face amount	[6]	1,854
Carrying amount	[3],[6]	305
Balance at December 31,	[3],[6]	$ 305
Nonretail [Member] | Borrower A [Member] | Other Financing Loans [Member]
Interest rate		7.00%
Face amount		$ 397
Carrying amount	[3]	314
Balance at December 31,	[3]	$ 314

[1] During 2021, the Company acquired $13.4 million of mortgage loan receivables in connection with the merger with Weingarten.

[2] During 2022, the Company recognized $4.0 million of profit participation related to the repayment of a mortgage loan, which is included in Other income, net on the Company’s Consolidated Statements of Income.

[3] The aggregate cost for Federal income tax purposes was approximately $130.7 million as of December 31, 2023.

[4] Comprised of two separate loans with original loan amounts ranging from $3.1 million to $3.4 million.

[5] There was an outstanding undrawn mortgage loan balance of $7.0 million as of December 31, 2023, for which the Company, as a lender, accrues interest at a rate of 0.5% per annum.

[6] Comprised of two separate loans with original loan amounts ranging from $0.5 million to $1.9 million.