Segment Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($) numberOfSegments	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Segment Reporting Information [Abstract]
Rental and other revenues	$ 806,112	$ 825,862	$ 833,997
Rental property and other expenses	261,373	272,173	268,782
Total net operating income	544,739	553,689	565,215
Reconciliation to net income:
Depreciation and amortization	(294,954)	(299,046)	(299,411)
Impairments of real estate assets	(8,800)	(24,600)	0
General and administrative expenses	(40,307)	(41,903)	(42,857)
Interest expense	(152,433)	(147,198)	(136,710)
Other income	9,587	12,337	4,435
Gains on disposition of property	107,149	46,817	47,773
Gain on deconsolidation of affiliate	0	0	11,778
Loss on disposition of investment in unconsolidated affiliate	(4,700)	0	0
Equity in earnings of unconsolidated affiliates	2,369	4,158	1,107
Net income	162,650	104,254	151,330
Total assets	$ 6,273,838	6,029,355
Number of reportable segments | numberOfSegments	7
Total Reportable Segment [Member]
Segment Reporting Information [Abstract]
Rental and other revenues	$ 757,048	769,079	776,827
Rental property and other expenses	241,544	245,898	243,227
Total net operating income	515,504	523,181	533,600
Reconciliation to net income:
Total assets	5,492,642	5,219,711
Atlanta, GA [Member]
Segment Reporting Information [Abstract]
Rental and other revenues	144,957	146,168	143,741
Rental property and other expenses	56,982	57,453	54,041
Total net operating income	87,975	88,715	89,700
Reconciliation to net income:
Total assets	928,924	958,101
Charlotte, NC [Member]
Segment Reporting Information [Abstract]
Rental and other revenues	93,392	88,003	85,984
Rental property and other expenses	25,866	24,419	22,063
Total net operating income	67,526	63,584	63,921
Reconciliation to net income:
Total assets	1,225,852	950,068
Nashville, TN [Member]
Segment Reporting Information [Abstract]
Rental and other revenues	156,603	169,158	171,797
Rental property and other expenses	44,818	45,143	46,380
Total net operating income	111,785	124,015	125,417
Reconciliation to net income:
Total assets	1,214,010	1,231,940
Orlando, FL [Member]
Segment Reporting Information [Abstract]
Rental and other revenues	57,131	58,442	58,002
Rental property and other expenses	21,706	23,094	22,840
Total net operating income	35,425	35,348	35,162
Reconciliation to net income:
Total assets	267,110	276,070
Raleigh, NC [Member]
Segment Reporting Information [Abstract]
Rental and other revenues	180,735	173,156	181,964
Rental property and other expenses	46,867	47,046	49,702
Total net operating income	133,868	126,110	132,262
Reconciliation to net income:
Total assets	1,308,827	1,182,217
Richmond, VA [Member]
Segment Reporting Information [Abstract]
Rental and other revenues	36,192	35,265	35,918
Rental property and other expenses	11,654	11,140	11,162
Total net operating income	24,538	24,125	24,756
Reconciliation to net income:
Total assets	147,118	157,431
Tampa, FL [Member]
Segment Reporting Information [Abstract]
Rental and other revenues	88,038	98,887	99,421
Rental property and other expenses	33,651	37,603	37,039
Total net operating income	54,387	61,284	62,382
Reconciliation to net income:
Total assets	400,801	463,884
Other Segment [Member]
Segment Reporting Information [Abstract]
Rental and other revenues	49,064	56,783	57,170
Rental property and other expenses	19,829	26,275	25,555
Total net operating income	29,235	30,508	$ 31,615
Reconciliation to net income:
Total assets	$ 781,196	$ 809,644