Real Estate (Rental Income) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Lease Income [Abstract]
Rental income from operating leases	$ 211,557,000	$ 197,629,000	$ 420,641,000	$ 395,812,000
Earned income from direct financing leases	118,000	143,000	237,000	287,000
Percentage rent	259,000	291,000	1,147,000	1,054,000
Rental revenues	211,934,000	198,063,000	422,025,000	397,153,000
Real estate expense reimbursement from tenants	4,206,000	4,363,000	8,940,000	8,903,000
Rental income	216,140,000	202,426,000	430,965,000	406,056,000
Rental income accrued during period	$ (95,000)	$ 534,000	$ (131,000)	$ 1,003,000