LEASES (UNITED DOMINION REALTY, L.P.) - Lessor (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($)
Future minimum lease payments
2020	$ 22,568
2021	22,055
2022	20,443
2023	19,057
2024	17,304
Thereafter	78,818
Total future minimum payments	180,245
Variable lease expense	$ 400
Apartment Homes
Lessor leases
Percentage of lease revenue	98.10%
Apartment Homes \| Maximum
Lessor leases
Lease terms	12 months
Retail and Commercial Spaces
Lessor leases
Percentage of lease revenue	1.90%
Retail and Commercial Spaces \| Minimum
Lessor leases
Lease terms	5 years
Retail and Commercial Spaces \| Maximum
Lessor leases
Lease terms	15 years
United Dominion Realty L.P.
Future minimum lease payments
2020	$ 7,733
2021	7,395
2022	6,791
2023	6,466
2024	5,801
Thereafter	13,826
Total future minimum payments	$ 48,012
United Dominion Realty L.P. \| Minimum
Lessor leases
Lease terms	5 years
United Dominion Realty L.P. \| Maximum
Lessor leases
Lease terms	15 years
United Dominion Realty L.P. \| Apartment Homes
Lessor leases
Percentage of lease revenue	98.40%
United Dominion Realty L.P. \| Apartment Homes \| Maximum
Lessor leases
Lease terms	12 months
United Dominion Realty L.P. \| Retail and Commercial Spaces
Lessor leases
Percentage of lease revenue	1.60%
Future minimum lease payments
Variable lease expense	$ 100

This element represents the rental revenue earned during the period from total lease revenue.

No definition available.

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- Definition

Term of lessor's direct financing lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919359-209981

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Amount of lease payments to be received by lessor for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919396-209981

+ Details

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- Definition

Amount of lease payments to be received by lessor in fifth fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

+ References

+ Details

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- Definition

Amount of lease payments to be received by lessor in fourth year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

+ References

+ Details

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- Definition

Amount of lease payments to be received by lessor in next fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

+ References

+ Details

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- Definition

Amount of lease payments to be received by lessor after fifth fiscal year following latest statement of financial position date for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

+ References

+ Details

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- Definition

Amount of lease payments to be received by lessor in third fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

+ References

+ Details

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- Definition

Amount of lease payments to be received by lessor in second fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

+ References

+ Details

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971

+ Details

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- Details

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- Details

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