JOINT VENTURES AND PARTNERSHIPS - Commitments (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Joint Ventures | |||||
| Investment in unconsolidated entities | $ 721,285 | $ 721,285 | $ 879,735 | ||
| Deferred fees from the sale of properties | 7,900 | 7,900 | 8,400 | ||
| Joint venture management and other fees | $ 2,466 | $ 2,398 | $ 4,994 | $ 4,510 | |
| Type of revenue | udr:ManagementAndOtherFeesMember | udr:ManagementAndOtherFeesMember | udr:ManagementAndOtherFeesMember | udr:ManagementAndOtherFeesMember | |
| Management Services | |||||
| Joint Ventures | |||||
| Joint venture management and other fees | $ 2,500 | $ 2,400 | $ 5,000 | $ 4,500 | |
| 13th and Market Properties LLC | Location, Statement of Financial Position, Balance [Axis]: us-gaap:AccountsPayableAndAccruedLiabilitiesMember | |||||
| Joint Ventures | |||||
| Investment in unconsolidated entities | $ (7,600) | $ (7,600) | $ (6,800) | ||
| X | ||||||||||
- Definition Joint Ventures. No definition available.
|
| X | ||||||||||
- Definition Amount of gain on the sale of property that does not qualify for gain recognition as of the balance sheet date. No definition available.
|
| X | ||||||||||
- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Indicates type of revenue from product and service. Includes, but is not limited to, revenue from contract with customer and other sources. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|