CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock	COMMON SHARES, $0.01 PAR VALUE	PAID IN CAPITAL	RETAINED EARNINGS	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	DISTRIBUTIONS	OPERATING PARTNERSHIP	PARTIALLY OWNED PROPERTIES
Balance, beginning of year at Dec. 31, 2021		$ 37,280	$ 3,755	$ 9,121,122	$ 1,827,063	$ (34,272)
Balance, beginning of year at Dec. 31, 2021								$ 214,094	$ 18,166
COMMON SHARES, $0.01 PAR VALUE
Conversion of OP Units into Common Shares				174
Exercise of share options			3	14,341
Employee Share Purchase Plan (ESPP)				969
Share-based employee compensation expense:
Issuance of restricted units/shares			2	3,609				1
Share options				876
ESPP discount				171
Offering costs				(114)
Supplemental Executive Retirement Plan (SERP)				(163)
Change in market value of Redeemable Noncontrolling Interests - Operating Partnership	$ (939)			939
Adjustment for Noncontrolling Interests ownership in Operating Partnership				1,045				(1,045)
PAID IN CAPITAL
Conversion of OP Units into Common Shares				174
Exercise of share options			3	14,341
Employee Share Purchase Plan (ESPP)				969
RETAINED EARNINGS
Net income attributable to controlling interests	70,765				70,765
Common Share distributions					(235,351)
Preferred Share distributions					(772)
Accumulated other comprehensive income (loss) - derivative instruments:
Losses reclassified into earnings from other comprehensive income	(2,425)					2,425
DISTRIBUTIONS
Distributions declared per Common Share outstanding							$ 0.625
NONCONTROLLING INTERESTS
Issuance of restricted units/shares			2	3,609				1
Conversion of OP Units held by Noncontrolling Interests into OP Units held by General Partner								(174)
Equity compensation associated with Noncontrolling Interests								7,798
Net income attributable to Noncontrolling Interests	2,394							2,394	639
Distributions to Noncontrolling Interests								(7,895)	(15,836)
Change in carrying value of Redeemable Noncontrolling Interests - Operating Partnership	(2,278)							2,278
Adjustment for Noncontrolling Interests ownership in Operating Partnership				1,045				(1,045)
PARTIALLY OWNED PROPERTIES
Net income attributable to Noncontrolling Interests	2,394							2,394	639
Contributions by Noncontrolling Interests									446
Distributions to Noncontrolling Interests								(7,895)	(15,836)
Balance, end of period at Mar. 31, 2022		37,280	3,760	9,142,969	1,661,705	(31,847)
Balance, end of period at Mar. 31, 2022								217,451	3,415
Balance, beginning of year at Dec. 31, 2022	11,173,439	37,280	3,784	9,476,085	1,658,837	(2,547)
Balance, beginning of year at Dec. 31, 2022	209,240							209,961	(721)
COMMON SHARES, $0.01 PAR VALUE
Conversion of OP Units into Common Shares			2	3,671
Exercise of share options			2	8,110
Employee Share Purchase Plan (ESPP)				1,452
Share-based employee compensation expense:
Issuance of restricted units/shares			1	3,653
Share options				1,497
ESPP discount				260
Supplemental Executive Retirement Plan (SERP)				491
Change in market value of Redeemable Noncontrolling Interests - Operating Partnership	5,946			(5,946)
Adjustment for Noncontrolling Interests ownership in Operating Partnership				(953)				953
PAID IN CAPITAL
Conversion of OP Units into Common Shares			2	3,671
Exercise of share options			2	8,110
Employee Share Purchase Plan (ESPP)				1,452
RETAINED EARNINGS
Net income attributable to controlling interests	212,035				212,035
Common Share distributions					(250,969)
Preferred Share distributions					(772)
Accumulated other comprehensive income (loss) - derivative instruments:
Unrealized holding gains (losses) arising during the period	(9,780)					(9,780)
Losses reclassified into earnings from other comprehensive income	(1,095)					1,095
DISTRIBUTIONS
Distributions declared per Common Share outstanding							$ 0.6625
NONCONTROLLING INTERESTS
Issuance of restricted units/shares			1	3,653
Conversion of OP Units held by Noncontrolling Interests into OP Units held by General Partner								(3,673)
Equity compensation associated with Noncontrolling Interests								4,654
Net income attributable to Noncontrolling Interests	7,059							7,059	977
Distributions to Noncontrolling Interests								(7,904)	(2,809)
Change in carrying value of Redeemable Noncontrolling Interests - Operating Partnership	(668)							668
Adjustment for Noncontrolling Interests ownership in Operating Partnership				(953)				953
PARTIALLY OWNED PROPERTIES
Net income attributable to Noncontrolling Interests	7,059							7,059	977
Distributions to Noncontrolling Interests								(7,904)	(2,809)
Balance, end of period at Mar. 31, 2023	11,137,288	$ 37,280	$ 3,789	$ 9,488,320	$ 1,619,131	$ (11,232)
Balance, end of period at Mar. 31, 2023	$ 209,165							$ 211,718	$ (2,553)