CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Thousands, $ in Thousands	Parent	Common Stock	Capital in Excess of Par Value	Cumulative Net Income	Accumulated OCI	Cumulative Distributions	Non-controlling Interests	Total
Balance at beginning of period at Dec. 31, 2020	$ 767,402	$ 392	$ 852,780	$ 1,388,775		$ (1,474,545)	$ 8,404	$ 775,806
Balance (in shares) at Dec. 31, 2020		39,242
Equity activity
Issuance of restricted stock		$ 1	(1)
Issuance of restricted stock (in shares)		110
Net income	55,861			55,861			363	56,224
Stock-based compensation expense	7,760		7,760					7,760
Vesting of performance-based stock units, including the payment of distributions	(764)	$ 1	(1)			(764)		(764)
Vesting of performance-based stock units, including the payment of distributions (in shares)		(109)
Non-controlling interests contributions							9	9
Non-controlling interest distributions							(363)	(363)
Common stock cash distributions	(89,730)					(89,730)		(89,730)
Cash paid for taxes in lieu of common shares	(3,573)		(3,573)					(3,573)
Cash paid for taxes in lieu of common shares (in shares)		(87)
Fair market valuation adjustment for interest rate swap	(172)				$ (172)			(172)
Other	(70)		(70)					(70)
Balance at end of period at Dec. 31, 2021	736,714	$ 394	856,895	1,444,636	(172)	(1,565,039)	8,413	745,127
Balance (in shares) at Dec. 31, 2021		39,374
Equity activity
Issuance of common stock	67,643	$ 18	67,625					67,643
Issuance of common stock (in shares)		1,792
Issuance of restricted stock		$ 1	(1)
Issuance of restricted stock (in shares)		135
Net income	100,024			100,024			560	100,584
Stock-based compensation expense	7,964		7,964					7,964
Non-controlling interests contributions							14,375	14,375
Non-controlling interest distributions							(1,406)	(1,406)
Common stock cash distributions	(91,509)					(91,509)		(91,509)
Cash paid for taxes in lieu of common shares	(1,355)	$ (1)	(1,354)					(1,355)
Cash paid for taxes in lieu of common shares (in shares)		(39)
Fair market valuation adjustment for interest rate swap	8,891				8,891			8,891
Other	(5)		(5)				(2)	(7)
Balance at end of period at Dec. 31, 2022	828,367	$ 412	931,124	1,544,660	8,719	(1,656,548)	21,940	850,307
Balance (in shares) at Dec. 31, 2022		41,262
Equity activity
Issuance of common stock	53,688	$ 17	53,671					53,688
Issuance of common stock (in shares)		1,658
Issuance of restricted stock		$ 1	(1)
Issuance of restricted stock (in shares)		146
Net income	89,735			89,735			1,727	91,462
Stock-based compensation expense	8,481		8,481					8,481
Non-controlling interests contributions							12,965	12,965
Non-controlling interest distributions							(1,644)	(1,644)
Common stock cash distributions	(94,764)					(94,764)		(94,764)
Cash paid for taxes in lieu of common shares	(1,619)		(1,619)					(1,619)
Cash paid for taxes in lieu of common shares (in shares)		(43)
Fair market valuation adjustment for interest rate swap	(2,609)				(2,609)			(2,609)
Other (in shares)		(1)
Balance at end of period at Dec. 31, 2023	$ 881,279	$ 430	$ 991,656	$ 1,634,395	$ 6,110	$ (1,751,312)	$ 34,988	$ 916,267
Balance (in shares) at Dec. 31, 2023		43,022