Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Redeemable Perpetual Preferred Stock	Distributions in Excess of Accumulated Earnings	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interests – Common OP Units
Beginning balance at Dec. 31, 2022	$ 1,517,485	$ 1,916	$ 1,628,618	$ 0	$ (204,248)	$ 19,119	$ 72,080
Increase (Decrease) in Stockholders' Equity
Exchange of Common OP Units for Common Stock	0		198				(198)
Issuance of Common Stock through employee stock purchase plan	363		363
Compensation expenses related to restricted stock and stock options	2,549		2,549
Repurchase of Common Stock or Common OP Units	(1,932)		(1,932)
Adjustment for Common OP Unitholders in the Operating Partnership	0		168				(168)
Adjustment for fair market value of swap	(3,978)					(3,978)
Consolidated net income	86,459				82,371		4,088
Distributions	(87,462)				(83,326)		(4,136)
Other	(98)		(98)
Ending balance at Mar. 31, 2023	1,513,386	1,916	1,629,866	0	(205,203)	15,141	71,666
Beginning balance at Dec. 31, 2022	1,517,485	1,916	1,628,618	0	(204,248)	19,119	72,080
Increase (Decrease) in Stockholders' Equity
Adjustment for fair market value of swap	(3,555)
Ending balance at Sep. 30, 2023	1,497,007	1,917	1,641,553	0	(232,081)	15,564	70,054
Beginning balance at Mar. 31, 2023	1,513,386	1,916	1,629,866	0	(205,203)	15,141	71,666
Increase (Decrease) in Stockholders' Equity
Issuance of Common Stock through employee stock purchase plan	504		504
Compensation expenses related to restricted stock and stock options	8,584		8,584
Adjustment for Common OP Unitholders in the Operating Partnership	0		(503)				503
Adjustment for fair market value of swap	2,186					2,186
Consolidated net income	66,049			8	62,920		3,121
Distributions	(87,500)			(8)	(83,357)		(4,135)
Other	(97)		(97)
Ending balance at Jun. 30, 2023	1,503,112	1,916	1,638,354	0	(225,640)	17,327	71,155
Increase (Decrease) in Stockholders' Equity
Exchange of Common OP Units for Common Stock	0	1	812				(813)
Issuance of Common Stock through employee stock purchase plan	736		736
Compensation expenses related to restricted stock and stock options	1,799		1,799
Adjustment for Common OP Unitholders in the Operating Partnership	0		(27)				27
Adjustment for fair market value of swap	(1,763)					(1,763)
Consolidated net income	80,741				76,969		3,772
Distributions	(87,497)				(83,410)		(4,087)
Other	(121)		(121)
Ending balance at Sep. 30, 2023	1,497,007	1,917	1,641,553	0	(232,081)	15,564	70,054
Beginning balance at Dec. 31, 2023	1,498,621	1,917	1,644,319	0	(223,576)	6,061	69,900
Increase (Decrease) in Stockholders' Equity
Issuance of Common Stock through employee stock purchase plan	382		382
Compensation expenses related to restricted stock and stock options	1,716		1,716
Repurchase of Common Stock or Common OP Units	(1,908)		(1,908)
Adjustment for Common OP Unitholders in the Operating Partnership	0		58				(58)
Adjustment for fair market value of swap	(781)					(781)
Consolidated net income	115,271				109,905		5,366
Distributions	(93,398)				(89,050)		(4,348)
Other	(157)		(157)
Ending balance at Mar. 31, 2024	1,519,746	1,917	1,644,410	0	(202,721)	5,280	70,860
Beginning balance at Dec. 31, 2023	1,498,621	1,917	1,644,319	0	(223,576)	6,061	69,900
Increase (Decrease) in Stockholders' Equity
Adjustment for fair market value of swap	(10,825)
Ending balance at Sep. 30, 2024	1,495,539	1,917	1,648,384	0	(219,724)	(4,764)	69,726
Beginning balance at Mar. 31, 2024	1,519,746	1,917	1,644,410	0	(202,721)	5,280	70,860
Increase (Decrease) in Stockholders' Equity
Issuance of Common Stock through employee stock purchase plan	382		382
Compensation expenses related to restricted stock and stock options	1,767		1,767
Adjustment for Common OP Unitholders in the Operating Partnership	0		(76)				76
Adjustment for fair market value of swap	12					12
Consolidated net income	82,127			8	78,297		3,822
Distributions	(93,417)			(8)	(89,062)		(4,347)
Other	(323)		(323)
Ending balance at Jun. 30, 2024	1,510,294	1,917	1,646,160	0	(213,486)	5,292	70,411
Increase (Decrease) in Stockholders' Equity
Issuance of Common Stock through employee stock purchase plan	394		394
Compensation expenses related to restricted stock and stock options	1,535		1,535
Adjustment for Common OP Unitholders in the Operating Partnership	0		380				(380)
Adjustment for fair market value of swap	(10,056)					(10,056)
Consolidated net income	86,863				82,821	0	4,042
Distributions	(93,406)				(89,059)		(4,347)
Other	(85)		(85)
Ending balance at Sep. 30, 2024	$ 1,495,539	$ 1,917	$ 1,648,384	$ 0	$ (219,724)	$ (4,764)	$ 69,726