CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
REVENUES:
Rental income	$ 411,669	$ 398,307
Joint venture management and other fees	$ 1,965	$ 1,242
Type of revenue	udr:ManagementAndOtherFeesMember	udr:ManagementAndOtherFeesMember
Total revenues	$ 413,634	$ 399,549
OPERATING EXPENSES:
Property operating and maintenance	73,478	64,834
Real estate taxes and insurance	58,795	57,970
Property management	13,379	12,945
Other operating expenses	6,828	3,032
Real estate depreciation and amortization	169,858	169,300
General and administrative	17,810	17,480
Casualty-related charges/(recoveries), net	6,278	4,156
Other depreciation and amortization	4,316	3,649
Total operating expenses	350,742	333,366
Gain/(loss) on sale of real estate owned	16,867	1
Operating income	79,759	66,184
Income/(loss) from unconsolidated entities	9,085	9,707
Interest expense	(48,062)	(43,742)
Interest income and other income/(expense), net	5,865	1,010
Income/(loss) before income taxes	46,647	33,159
Tax (provision)/benefit, net	(337)	(234)
Net income/(loss)	46,310	32,925
Net (income)/loss attributable to redeemable noncontrolling interests in the Operating Partnership and DownREIT Partnership	(3,149)	(1,953)
Net (income)/loss attributable to noncontrolling interests	(12)	(8)
Net income/(loss) attributable to UDR, Inc.	43,149	30,964
Distributions to preferred stockholders - Series E (Convertible)	(1,231)	(1,183)
Net income/(loss) attributable to common stockholders	$ 41,918	$ 29,781
Income/(loss) per weighted average common share - basic	$ 0.13	$ 0.09
Income/(loss) per weighted average common share - diluted	$ 0.13	$ 0.09
Weighted average number of common shares outstanding - basic	328,823	328,789
Weighted average number of common shares outstanding - diluted	328,954	329,421