CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
REVENUES:
Rental income	$ 263,256	$ 248,264	$ 770,373	$ 734,193
Total revenues	266,144	251,091	779,192	742,911
OPERATING EXPENSES:
Property operating and maintenance	44,090	42,362	126,129	122,574
Real estate taxes and insurance	34,352	31,181	99,541	90,792
Property management	7,240	6,827	21,185	20,190
Other operating expenses	3,314	1,950	8,148	6,010
Real estate depreciation and amortization	107,881	107,171	322,537	320,653
General and administrative	11,896	12,467	36,028	36,976
Casualty-related charges/(recoveries), net	678	2,056	2,364	3,749
Other depreciation and amortization	1,682	1,585	5,057	4,760
Total operating expenses	211,133	205,599	620,989	605,704
Operating income	55,011	45,492	158,203	137,207
Income/(loss) from unconsolidated entities	(1,382)	1,819	(5,091)	11,591
Interest expense	(34,401)	(30,095)	(95,942)	(94,500)
Interest income and other income/(expense), net	1,188	481	5,075	1,423
Income/(loss) before income taxes and gain/(loss) on sale of real estate owned	20,416	17,697	62,245	55,721
Tax (provision)/benefit, net	(158)	(127)	(618)	(825)
Income/(loss) from continuing operations	20,258	17,570	61,627	54,896
Gain/(loss) on sale of real estate owned, net of tax			70,300	2,132
Net income/(loss)	20,258	17,570	131,927	57,028
Net (income)/loss attributable to redeemable noncontrolling interests in the Operating Partnership and DownREIT Partnership	(1,616)	(1,415)	(10,819)	(4,607)
Net (income)/loss attributable to noncontrolling interests	(32)	35	(141)	(107)
Net income/(loss) attributable to UDR, Inc.	18,610	16,190	120,967	52,314
Distributions to preferred stockholders — Series E (Convertible)	(971)	(926)	(2,897)	(2,784)
Net income/(loss) attributable to common stockholders	$ 17,639	$ 15,264	$ 118,070	$ 49,530
Common distributions declared per share	$ 0.3225	$ 0.3100	$ 0.9675	$ 0.9300
Income/(loss) per weighted average common share - basic	0.07	0.06	0.44	0.19
Income/(loss) per weighted average common share - diluted	$ 0.07	$ 0.06	$ 0.44	$ 0.18
Weighted average number of common shares outstanding — Basic	267,727	267,056	267,529	266,940
Weighted average number of common shares outstanding — diluted	268,861	269,062	269,020	268,851
Management and other fees
REVENUES:
Joint venture management and other fees	$ 2,888	$ 2,827	$ 8,819	$ 8,718