Consolidated Statement of Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Shares	Additional Paid-in Capital	Accumulated Dividends in Excess of Net Income	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests - Unitholders in the Operating Partnership
Beginning Balance (in shares) at Dec. 31, 2021		60,525,580
Beginning Balance at Dec. 31, 2021	$ 1,210,123	$ 605	$ 1,453,272	$ (217,785)	$ 2,872	$ (28,841)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,514			10,678		2,836
Forfeiture of restricted stock (in shares)		(3,121)
Dividends declared and paid	(24,545)			(19,367)		(5,178)
Stock-based compensation	1,489		1,489
Shares withheld for employee taxes (in shares)		(416)
Shares withheld for employee taxes	(15)		(15)
Other comprehensive income - change in value of interest rate swaps	5,596				4,408	1,188
Reclassification of amortization of forward-starting swap included in interest expense	(275)				(217)	(58)
Ending Balance (in shares) at Mar. 31, 2022		60,522,043
Ending Balance at Mar. 31, 2022	1,205,887	$ 605	1,454,746	(226,474)	7,063	(30,053)
Beginning Balance (in shares) at Dec. 31, 2021		60,525,580
Beginning Balance at Dec. 31, 2021	1,210,123	$ 605	1,453,272	(217,785)	2,872	(28,841)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	43,471
Other comprehensive income - change in value of interest rate swaps	13,117
Ending Balance (in shares) at Sep. 30, 2022		60,528,115
Ending Balance at Sep. 30, 2022	1,197,723	$ 605	1,458,748	(241,549)	12,554	(32,635)
Beginning Balance (in shares) at Mar. 31, 2022		60,522,043
Beginning Balance at Mar. 31, 2022	1,205,887	$ 605	1,454,746	(226,474)	7,063	(30,053)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,588			10,736		2,852
Issuance of restricted stock (in shares)		6,072
Dividends declared and paid	(24,547)			(19,369)		(5,178)
Stock-based compensation	2,001		2,001
Other comprehensive income - change in value of interest rate swaps	3,314				2,610	704
Reclassification of amortization of forward-starting swap included in interest expense	(275)				(216)	(59)
Ending Balance (in shares) at Jun. 30, 2022		60,528,115
Ending Balance at Jun. 30, 2022	1,199,968	$ 605	1,456,747	(235,107)	9,457	(31,734)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	16,369			12,927		3,442
Dividends declared and paid	(24,547)			(19,369)		(5,178)
Stock-based compensation	2,001		2,001
Other comprehensive income - change in value of interest rate swaps	4,207				3,314	893
Reclassification of amortization of forward-starting swap included in interest expense	(275)				(217)	(58)
Ending Balance (in shares) at Sep. 30, 2022		60,528,115
Ending Balance at Sep. 30, 2022	$ 1,197,723	$ 605	1,458,748	(241,549)	12,554	(32,635)
Beginning Balance (in shares) at Dec. 31, 2022	60,718,653	60,718,653
Beginning Balance at Dec. 31, 2022	$ 1,185,525	$ 607	1,461,201	(251,167)	10,624	(35,740)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20,666			16,325		4,341
Forfeiture of restricted stock (in shares)		(818)
Dividends declared and paid	(25,377)			(20,037)		(5,340)
Stock-based compensation	2,035		2,035
Other comprehensive income - change in value of interest rate swaps	(2,269)				(1,786)	(483)
Reclassification of amortization of forward-starting swap included in interest expense	(854)				(673)	(181)
Ending Balance (in shares) at Mar. 31, 2023		60,717,835
Ending Balance at Mar. 31, 2023	$ 1,179,726	$ 607	1,463,236	(254,879)	8,165	(37,403)
Beginning Balance (in shares) at Dec. 31, 2022	60,718,653	60,718,653
Beginning Balance at Dec. 31, 2022	$ 1,185,525	$ 607	1,461,201	(251,167)	10,624	(35,740)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	51,198
Other comprehensive income - change in value of interest rate swaps	$ 2,859
Ending Balance (in shares) at Sep. 30, 2023	60,724,630	60,724,630
Ending Balance at Sep. 30, 2023	$ 1,168,650	$ 607	1,467,455	(270,817)	12,051	(40,646)
Beginning Balance (in shares) at Mar. 31, 2023		60,717,835
Beginning Balance at Mar. 31, 2023	1,179,726	$ 607	1,463,236	(254,879)	8,165	(37,403)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	15,397			12,173		3,224
Issuance of restricted stock (in shares)		10,348
Forfeiture of restricted stock (in shares)		(3,553)
Dividends declared and paid	(25,379)			(20,039)		(5,340)
Stock-based compensation	2,110		2,110
Other comprehensive income - change in value of interest rate swaps	4,360				3,436	924
Reclassification of amortization of forward-starting swap included in interest expense	(98)				(77)	(21)
Ending Balance (in shares) at Jun. 30, 2023		60,724,630
Ending Balance at Jun. 30, 2023	1,176,116	$ 607	1,465,346	(262,745)	11,524	(38,616)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	15,135			11,967		3,168
Dividends declared and paid	(25,379)			(20,039)		(5,340)
Stock-based compensation	2,109		2,109
Other comprehensive income - change in value of interest rate swaps	768				605	163
Reclassification of amortization of forward-starting swap included in interest expense	$ (99)				(78)	(21)
Ending Balance (in shares) at Sep. 30, 2023	60,724,630	60,724,630
Ending Balance at Sep. 30, 2023	$ 1,168,650	$ 607	$ 1,467,455	$ (270,817)	$ 12,051	$ (40,646)