Community Threshold, Period Above Occupancy Threshold

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- Definition

Condition for Community considered to have stabilized occupancy.

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- Definition

Gain from the consolidation from the purchase of an unconsolidated joint venture.

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- Definition

Joint Ventures.

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No definition available.

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- Definition

Number of apartment homes acquired.

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No definition available.

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- Definition

Real Estate Owned Gross.

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No definition available.

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- Definition

Represents management fee revenue.

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No definition available.

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- Definition

Amount of gain on the sale of property that does not qualify for gain recognition as of the balance sheet date.

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No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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- Definition

Gross amount of debt extinguished.

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No definition available.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

The number of units in a real estate property owned as of the balance sheet date.

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No definition available.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Indicates type of revenue from product and service. Includes, but is not limited to, revenue from contract with customer and other sources.

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No definition available.

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JOINT VENTURES AND PARTNERSHIPS - Commitments (Details) $ in Thousands	1 Months Ended			3 Months Ended
	Apr. 30, 2020 USD ($)	Jan. 31, 2020 USD ($) home	Jan. 31, 2019 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Joint Ventures
Real estate owned				$ 12,817,998		$ 12,602,101
Second installment of payable incurred in partial consideration for acquisition of ownership interest in joint venture				33,560
Investment in unconsolidated entities				$ 585,091		585,490
Condition for Community considered to have stabilized occupancy				90%
Time to maintain percent occupancy to be considered a community				3 months
repayment of construction loan	$ 215,000
Investment in unconsolidated joint ventures				$ 16,139	$ 21,389
Long-term Debt				4,885,138		4,707,524
Deferred fees from the sale of properties				9,000		$ 9,000
Joint venture management and other fees					2,800
Joint venture management and other fees				$ 1,388	$ 2,751
Type of revenue				udr:ManagementAndOtherFeesMember	udr:ManagementAndOtherFeesMember
Preferred Equity Investment Hillsboro Oregon
Joint Ventures
UDR's Ownership Interest		100.00%				49.00%
repayment of construction loan			$ 35,600
Number of apartment homes acquired \| home		276
Payment to acquire real estate		$ 21,600
Gain on consolidation		$ 0
Number of apartment homes \| home		276
13th and Market Properties LLC
Joint Ventures
Investment in unconsolidated entities				$ 3,300