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SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION (Details) $ in Thousands | 12 Months Ended |
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Dec. 31, 2018 USD ($) apartment | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2018 USD ($) ft²
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrance |  |  |  | $ 1,806,626
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,643,228
Buildings and improvements |  |  |  | 8,881,303
Costs capitalized subsequent to acquisition |  |  |  | 1,841,570
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,701,356
Buildings and improvements |  |  |  | 10,664,745
Total | $ 13,366,101 |  |  | 13,366,101
Accumulated depreciation | (2,769,297) | $ (2,311,546) | $ (1,949,892) | (3,209,548)
Aggregate cost for federal income tax purpose | 10,300,000 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Acquisition, development, and improvement of real estate | 325,986 | 700,892 | 609,669 |
Disposition of real estate and other | (321,958) | (28,367) | (264,832) |
Reclassification from other assets and into building and improvements, net | 0 | 1,826 | 4,756 |
Balance at the end of year | 13,366,101 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at beginning of year | 2,769,297 | 2,311,546 | 1,949,892 |
Depreciation expense | 478,721 | 464,043 | 432,165 |
Depreciation expense - Disposals and other | (38,470) | (6,292) | (70,511) |
Balance at the end of year | 3,209,548 | 2,769,297 | 2,311,546 |
Marquis [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrance |  |  |  | 45,800
Gross amount carried at close of period [Abstract] |  |  |  |
Total | 71,000 |  |  | 71,000
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 71,000 |  |  |
Encumbered Apartment Communities [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 13,456 |  |  |
Encumbrance |  |  |  | 1,806,626
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 716,537
Buildings and improvements |  |  |  | 2,264,308
Costs capitalized subsequent to acquisition |  |  |  | 478,675
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 726,494
Buildings and improvements |  |  |  | 2,733,026
Total | $ 3,459,520 |  |  | 3,459,520
Accumulated depreciation | (865,715) |  |  | (865,715)
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | 3,459,520 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 865,715 |  |  |
Encumbered Apartment Communities [Member] | Avondale at Warner Center [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 446 |  |  |
Encumbrance |  |  |  | 41,945
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 10,536
Buildings and improvements |  |  |  | 24,522
Costs capitalized subsequent to acquisition |  |  |  | 22,604
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 10,601
Buildings and improvements |  |  |  | 47,061
Total | $ 57,662 |  |  | 57,662
Accumulated depreciation | $ (32,368) |  |  | (32,368)
Date of construction | 1970 |  |  |
Date acquired | Jan-99 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 57,662 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 32,368 |  |  |
Encumbered Apartment Communities [Member] | Avondale at Warner Center [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Avondale at Warner Center [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Bel Air [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 462 |  |  |
Encumbrance |  |  |  | 49,185
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 12,105
Buildings and improvements |  |  |  | 18,252
Costs capitalized subsequent to acquisition |  |  |  | 37,550
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 12,682
Buildings and improvements |  |  |  | 55,225
Total | $ 67,907 |  |  | 67,907
Accumulated depreciation | $ (37,019) |  |  | (37,019)
Date of construction | 1988 |  |  |
Date acquired | Jan-95 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 67,907 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 37,019 |  |  |
Encumbered Apartment Communities [Member] | Bel Air [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Bel Air [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Belcarra [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 296 |  |  |
Encumbrance |  |  |  | 48,602
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 21,725
Buildings and improvements |  |  |  | 92,091
Costs capitalized subsequent to acquisition |  |  |  | 1,985
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 21,725
Buildings and improvements |  |  |  | 94,076
Total | $ 115,801 |  |  | 115,801
Accumulated depreciation | $ (16,327) |  |  | (16,327)
Date of construction | 2009 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 115,801 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 16,327 |  |  |
Encumbered Apartment Communities [Member] | Belcarra [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Belcarra [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | BellCentre [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 248 |  |  |
Encumbrance |  |  |  | 36,617
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 16,197
Buildings and improvements |  |  |  | 67,207
Costs capitalized subsequent to acquisition |  |  |  | 3,843
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 16,197
Buildings and improvements |  |  |  | 71,050
Total | $ 87,247 |  |  | 87,247
Accumulated depreciation | $ (13,018) |  |  | (13,018)
Date of construction | 2001 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 87,247 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,018 |  |  |
Encumbered Apartment Communities [Member] | BellCentre [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | BellCentre [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Belmont Station [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 275 |  |  |
Encumbrance |  |  |  | 29,678
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 8,100
Buildings and improvements |  |  |  | 66,666
Costs capitalized subsequent to acquisition |  |  |  | 6,379
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 8,267
Buildings and improvements |  |  |  | 72,878
Total | $ 81,145 |  |  | 81,145
Accumulated depreciation | $ (28,705) |  |  | (28,705)
Date of construction | 2009 |  |  |
Date acquired | Mar-09 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 81,145 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 28,705 |  |  |
Encumbered Apartment Communities [Member] | Belmont Station [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Belmont Station [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Brookside Oaks [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 170 |  |  |
Encumbrance |  |  |  | 17,746
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 7,301
Buildings and improvements |  |  |  | 16,310
Costs capitalized subsequent to acquisition |  |  |  | 26,653
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 10,328
Buildings and improvements |  |  |  | 39,936
Total | $ 50,264 |  |  | 50,264
Accumulated depreciation | $ (22,529) |  |  | (22,529)
Date of construction | 1973 |  |  |
Date acquired | Jun-00 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 50,264 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 22,529 |  |  |
Encumbered Apartment Communities [Member] | Brookside Oaks [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Brookside Oaks [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Carmel Creek [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 348 |  |  |
Encumbrance |  |  |  | 58,875
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 26,842
Buildings and improvements |  |  |  | 107,368
Costs capitalized subsequent to acquisition |  |  |  | 6,069
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 26,842
Buildings and improvements |  |  |  | 113,437
Total | $ 140,279 |  |  | 140,279
Accumulated depreciation | $ (21,010) |  |  | (21,010)
Date of construction | 2000 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 140,279 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 21,010 |  |  |
Encumbered Apartment Communities [Member] | Carmel Creek [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Carmel Creek [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | City View [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 572 |  |  |
Encumbrance |  |  |  | 62,544
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 9,883
Buildings and improvements |  |  |  | 37,670
Costs capitalized subsequent to acquisition |  |  |  | 29,252
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 10,350
Buildings and improvements |  |  |  | 66,455
Total | $ 76,805 |  |  | 76,805
Accumulated depreciation | $ (47,198) |  |  | (47,198)
Date of construction | 1975 |  |  |
Date acquired | Mar-98 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 76,805 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 47,198 |  |  |
Encumbered Apartment Communities [Member] | City View [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | City View [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Courtyard off Main [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 110 |  |  |
Encumbrance |  |  |  | 14,542
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 7,465
Buildings and improvements |  |  |  | 21,405
Costs capitalized subsequent to acquisition |  |  |  | 3,999
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 7,465
Buildings and improvements |  |  |  | 25,404
Total | $ 32,869 |  |  | 32,869
Accumulated depreciation | $ (7,768) |  |  | (7,768)
Date of construction | 2000 |  |  |
Date acquired | Oct-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 32,869 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 7,768 |  |  |
Encumbered Apartment Communities [Member] | Courtyard off Main [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Courtyard off Main [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Domaine [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 92 |  |  |
Encumbrance |  |  |  | 13,446
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 9,059
Buildings and improvements |  |  |  | 27,177
Costs capitalized subsequent to acquisition |  |  |  | 1,173
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 9,059
Buildings and improvements |  |  |  | 28,350
Total | $ 37,409 |  |  | 37,409
Accumulated depreciation | $ (6,238) |  |  | (6,238)
Date of construction | 2009 |  |  |
Date acquired | Sep-12 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 37,409 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 6,238 |  |  |
Encumbered Apartment Communities [Member] | Domaine [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Domaine [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Elevation [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 158 |  |  |
Encumbrance |  |  |  | 10,103
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,758
Buildings and improvements |  |  |  | 14,285
Costs capitalized subsequent to acquisition |  |  |  | 6,968
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,757
Buildings and improvements |  |  |  | 21,254
Total | $ 26,011 |  |  | 26,011
Accumulated depreciation | $ (8,650) |  |  | (8,650)
Date of construction | 1986 |  |  |
Date acquired | Jun-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 26,011 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,650 |  |  |
Encumbered Apartment Communities [Member] | Elevation [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Elevation [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Fairhaven Apartments [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 164 |  |  |
Encumbrance |  |  |  | 18,078
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,626
Buildings and improvements |  |  |  | 10,485
Costs capitalized subsequent to acquisition |  |  |  | 8,847
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,957
Buildings and improvements |  |  |  | 19,001
Total | $ 21,958 |  |  | 21,958
Accumulated depreciation | $ (10,794) |  |  | (10,794)
Date of construction | 1970 |  |  |
Date acquired | Nov-01 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 21,958 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,794 |  |  |
Encumbered Apartment Communities [Member] | Fairhaven Apartments [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Fairhaven Apartments [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Form 15 [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 242 |  |  |
Encumbrance |  |  |  | 44,922
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 24,510
Buildings and improvements |  |  |  | 72,221
Costs capitalized subsequent to acquisition |  |  |  | 5,236
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 25,540
Buildings and improvements |  |  |  | 76,427
Total | $ 101,967 |  |  | 101,967
Accumulated depreciation | $ (7,633) |  |  | (7,633)
Date of construction | 2014 |  |  |
Date acquired | Mar-16 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 101,967 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 7,633 |  |  |
Encumbered Apartment Communities [Member] | Form 15 [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Form 15 [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Foster's Landing [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 490 |  |  |
Encumbrance |  |  |  | 90,117
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 61,714
Buildings and improvements |  |  |  | 144,000
Costs capitalized subsequent to acquisition |  |  |  | 9,004
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 61,714
Buildings and improvements |  |  |  | 153,004
Total | $ 214,718 |  |  | 214,718
Accumulated depreciation | $ (28,842) |  |  | (28,842)
Date of construction | 1987 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 214,718 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 28,842 |  |  |
Encumbered Apartment Communities [Member] | Foster's Landing [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Foster's Landing [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Fountain At Riveroaks [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 226 |  |  |
Encumbrance |  |  |  | 29,974
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 26,046
Buildings and improvements |  |  |  | 60,773
Costs capitalized subsequent to acquisition |  |  |  | 4,234
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 26,046
Buildings and improvements |  |  |  | 65,007
Total | $ 91,053 |  |  | 91,053
Accumulated depreciation | $ (11,960) |  |  | (11,960)
Date of construction | 1990 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 91,053 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,960 |  |  |
Encumbered Apartment Communities [Member] | Fountain At Riveroaks [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Fountain At Riveroaks [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Fountain Park [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 705 |  |  |
Encumbrance |  |  |  | 82,571
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 25,073
Buildings and improvements |  |  |  | 94,980
Costs capitalized subsequent to acquisition |  |  |  | 33,057
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 25,203
Buildings and improvements |  |  |  | 127,907
Total | $ 153,110 |  |  | 153,110
Accumulated depreciation | $ (70,823) |  |  | (70,823)
Date of construction | 2002 |  |  |
Date acquired | Feb-04 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 153,110 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 70,823 |  |  |
Encumbered Apartment Communities [Member] | Fountain Park [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Fountain Park [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Hidden Valley [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 324 |  |  |
Encumbrance |  |  |  | 29,360
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 14,174
Buildings and improvements |  |  |  | 34,065
Costs capitalized subsequent to acquisition |  |  |  | 6,184
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 9,674
Buildings and improvements |  |  |  | 44,749
Total | $ 54,423 |  |  | 54,423
Accumulated depreciation | $ (21,000) |  |  | (21,000)
Date of construction | 2004 |  |  |
Date acquired | Dec-04 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 54,423 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 21,000 |  |  |
Encumbered Apartment Communities [Member] | Hidden Valley [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Hidden Valley [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Highlands at Wynhaven [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 333 |  |  |
Encumbrance |  |  |  | 29,540
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 16,271
Buildings and improvements |  |  |  | 48,932
Costs capitalized subsequent to acquisition |  |  |  | 13,850
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 16,271
Buildings and improvements |  |  |  | 62,782
Total | $ 79,053 |  |  | 79,053
Accumulated depreciation | $ (24,572) |  |  | (24,572)
Date of construction | 2000 |  |  |
Date acquired | Aug-08 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 79,053 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 24,572 |  |  |
Encumbered Apartment Communities [Member] | Highlands at Wynhaven [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Highlands at Wynhaven [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Highridge [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 255 |  |  |
Encumbrance |  |  |  | 69,273
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,419
Buildings and improvements |  |  |  | 18,347
Costs capitalized subsequent to acquisition |  |  |  | 31,535
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,073
Buildings and improvements |  |  |  | 49,228
Total | $ 55,301 |  |  | 55,301
Accumulated depreciation | $ (36,693) |  |  | (36,693)
Date of construction | 1972 |  |  |
Date acquired | May-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 55,301 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 36,693 |  |  |
Encumbered Apartment Communities [Member] | Highridge [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Highridge [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Hillcrest Park [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 608 |  |  |
Encumbrance |  |  |  | 61,279
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 15,318
Buildings and improvements |  |  |  | 40,601
Costs capitalized subsequent to acquisition |  |  |  | 20,434
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 15,755
Buildings and improvements |  |  |  | 60,598
Total | $ 76,353 |  |  | 76,353
Accumulated depreciation | $ (39,954) |  |  | (39,954)
Date of construction | 1973 |  |  |
Date acquired | Mar-98 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 76,353 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 39,954 |  |  |
Encumbered Apartment Communities [Member] | Hillcrest Park [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Hillcrest Park [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Huntington Breakers [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 342 |  |  |
Encumbrance |  |  |  | 34,397
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 9,306
Buildings and improvements |  |  |  | 22,720
Costs capitalized subsequent to acquisition |  |  |  | 20,818
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 9,315
Buildings and improvements |  |  |  | 43,529
Total | $ 52,844 |  |  | 52,844
Accumulated depreciation | $ (29,374) |  |  | (29,374)
Date of construction | 1984 |  |  |
Date acquired | Oct-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 52,844 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 29,374 |  |  |
Encumbered Apartment Communities [Member] | Huntington Breakers [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Huntington Breakers [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Inglenook Court [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 224 |  |  |
Encumbrance |  |  |  | 8,238
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,467
Buildings and improvements |  |  |  | 7,881
Costs capitalized subsequent to acquisition |  |  |  | 7,771
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,474
Buildings and improvements |  |  |  | 15,645
Total | $ 19,119 |  |  | 19,119
Accumulated depreciation | $ (12,667) |  |  | (12,667)
Date of construction | 1985 |  |  |
Date acquired | Oct-94 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 19,119 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 12,667 |  |  |
Encumbered Apartment Communities [Member] | Inglenook Court [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Inglenook Court [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | 1000 Kiely [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 121 |  |  |
Encumbrance |  |  |  | 34,040
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 9,359
Buildings and improvements |  |  |  | 21,845
Costs capitalized subsequent to acquisition |  |  |  | 7,956
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 9,359
Buildings and improvements |  |  |  | 29,801
Total | $ 39,160 |  |  | 39,160
Accumulated depreciation | $ (10,654) |  |  | (10,654)
Date of construction | 1971 |  |  |
Date acquired | Mar-11 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 39,160 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,654 |  |  |
Encumbered Apartment Communities [Member] | 1000 Kiely [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | 1000 Kiely [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Magnolia Square/Magnolia Lane [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 188 |  |  |
Encumbrance |  |  |  | 52,237
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 8,190
Buildings and improvements |  |  |  | 24,736
Costs capitalized subsequent to acquisition |  |  |  | 17,531
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 8,191
Buildings and improvements |  |  |  | 42,266
Total | $ 50,457 |  |  | 50,457
Accumulated depreciation | $ (20,951) |  |  | (20,951)
Date of construction | 1963 |  |  |
Date acquired | Sep-07 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 50,457 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 20,951 |  |  |
Encumbered Apartment Communities [Member] | Magnolia Square/Magnolia Lane [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Magnolia Square/Magnolia Lane [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Marquis [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 166 |  |  |
Encumbrance |  |  |  | 43,467
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 20,495
Buildings and improvements |  |  |  | 47,823
Costs capitalized subsequent to acquisition |  |  |  | 117
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 20,495
Buildings and improvements |  |  |  | 47,940
Total | $ 68,435 |  |  | 68,435
Accumulated depreciation | $ (151) |  |  | (151)
Date of construction | 2015 |  |  |
Date acquired | Dec-18 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 68,435 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 151 |  |  |
Encumbered Apartment Communities [Member] | Marquis [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Marquis [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Montarosa [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 472 |  |  |
Encumbrance |  |  |  | 60,473
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 26,697
Buildings and improvements |  |  |  | 106,787
Costs capitalized subsequent to acquisition |  |  |  | 5,447
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 26,697
Buildings and improvements |  |  |  | 112,234
Total | $ 138,931 |  |  | 138,931
Accumulated depreciation | $ (20,206) |  |  | (20,206)
Date of construction | 1990 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 138,931 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 20,206 |  |  |
Encumbered Apartment Communities [Member] | Montarosa [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Montarosa [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Montebello [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 248 |  |  |
Encumbrance |  |  |  | 24,639
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 13,857
Buildings and improvements |  |  |  | 41,575
Costs capitalized subsequent to acquisition |  |  |  | 4,955
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 13,858
Buildings and improvements |  |  |  | 46,529
Total | $ 60,387 |  |  | 60,387
Accumulated depreciation | $ (11,718) |  |  | (11,718)
Date of construction | 1996 |  |  |
Date acquired | Jul-12 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 60,387 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,718 |  |  |
Encumbered Apartment Communities [Member] | Montebello [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Montebello [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Montejo Apartments [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 124 |  |  |
Encumbrance |  |  |  | 12,873
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 1,925
Buildings and improvements |  |  |  | 7,685
Costs capitalized subsequent to acquisition |  |  |  | 3,972
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,194
Buildings and improvements |  |  |  | 11,388
Total | $ 13,582 |  |  | 13,582
Accumulated depreciation | $ (6,436) |  |  | (6,436)
Date of construction | 1974 |  |  |
Date acquired | Nov-01 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,582 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 6,436 |  |  |
Encumbered Apartment Communities [Member] | Montejo Apartments [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Montejo Apartments [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Park Highland [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 250 |  |  |
Encumbrance |  |  |  | 25,127
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 9,391
Buildings and improvements |  |  |  | 38,224
Costs capitalized subsequent to acquisition |  |  |  | 12,255
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 9,391
Buildings and improvements |  |  |  | 50,479
Total | $ 59,870 |  |  | 59,870
Accumulated depreciation | $ (10,986) |  |  | (10,986)
Date of construction | 1993 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 59,870 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,986 |  |  |
Encumbered Apartment Communities [Member] | Park Highland [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Park Highland [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at Fullerton [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 192 |  |  |
Encumbrance |  |  |  | 25,320
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 11,019
Buildings and improvements |  |  |  | 45,932
Costs capitalized subsequent to acquisition |  |  |  | 3,377
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 11,019
Buildings and improvements |  |  |  | 49,309
Total | $ 60,328 |  |  | 60,328
Accumulated depreciation | $ (9,000) |  |  | (9,000)
Date of construction | 2004 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 60,328 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 9,000 |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at Fullerton [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at Fullerton [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Pinnacle on Lake Washington [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 180 |  |  |
Encumbrance |  |  |  | 17,499
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 7,760
Buildings and improvements |  |  |  | 31,041
Costs capitalized subsequent to acquisition |  |  |  | 2,893
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 7,760
Buildings and improvements |  |  |  | 33,934
Total | $ 41,694 |  |  | 41,694
Accumulated depreciation | $ (5,993) |  |  | (5,993)
Date of construction | 2001 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 41,694 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 5,993 |  |  |
Encumbered Apartment Communities [Member] | Pinnacle on Lake Washington [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Pinnacle on Lake Washington [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at MacArthur Place [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 253 |  |  |
Encumbrance |  |  |  | 36,478
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 15,810
Buildings and improvements |  |  |  | 66,401
Costs capitalized subsequent to acquisition |  |  |  | 4,703
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 15,810
Buildings and improvements |  |  |  | 71,104
Total | $ 86,914 |  |  | 86,914
Accumulated depreciation | $ (12,752) |  |  | (12,752)
Date of construction | 2002 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 86,914 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 12,752 |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at MacArthur Place [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at MacArthur Place [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at Otay Ranch I & II [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 364 |  |  |
Encumbrance |  |  |  | 37,272
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 17,023
Buildings and improvements |  |  |  | 68,093
Costs capitalized subsequent to acquisition |  |  |  | 3,691
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 17,023
Buildings and improvements |  |  |  | 71,784
Total | $ 88,807 |  |  | 88,807
Accumulated depreciation | $ (13,000) |  |  | (13,000)
Date of construction | 2001 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 88,807 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,000 |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at Otay Ranch I & II [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at Otay Ranch I & II [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at Talega [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 362 |  |  |
Encumbrance |  |  |  | 41,647
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 19,292
Buildings and improvements |  |  |  | 77,168
Costs capitalized subsequent to acquisition |  |  |  | 2,771
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 19,292
Buildings and improvements |  |  |  | 79,939
Total | $ 99,231 |  |  | 99,231
Accumulated depreciation | $ (14,268) |  |  | (14,268)
Date of construction | 2002 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 99,231 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 14,268 |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at Talega [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Pinnacle at Talega [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Sage At Cupertino [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 230 |  |  |
Encumbrance |  |  |  | 51,690
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 35,719
Buildings and improvements |  |  |  | 53,449
Costs capitalized subsequent to acquisition |  |  |  | 3,467
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 35,719
Buildings and improvements |  |  |  | 56,916
Total | $ 92,635 |  |  | 92,635
Accumulated depreciation | $ (3,689) |  |  | (3,689)
Date of construction | 1971 |  |  |
Date acquired | Mar-17 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 92,635 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 3,689 |  |  |
Encumbered Apartment Communities [Member] | Sage At Cupertino [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Sage At Cupertino [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Stevenson Place [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 200 |  |  |
Encumbrance |  |  |  | 19,840
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 996
Buildings and improvements |  |  |  | 5,582
Costs capitalized subsequent to acquisition |  |  |  | 12,827
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 1,001
Buildings and improvements |  |  |  | 18,404
Total | $ 19,405 |  |  | 19,405
Accumulated depreciation | $ (13,221) |  |  | (13,221)
Date of construction | 1975 |  |  |
Date acquired | Apr-00 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 19,405 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,221 |  |  |
Encumbered Apartment Communities [Member] | Stevenson Place [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Stevenson Place [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Summerhill Park [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 100 |  |  |
Encumbrance |  |  |  | 12,269
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,654
Buildings and improvements |  |  |  | 4,918
Costs capitalized subsequent to acquisition |  |  |  | 11,132
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,656
Buildings and improvements |  |  |  | 16,048
Total | $ 18,704 |  |  | 18,704
Accumulated depreciation | $ (10,309) |  |  | (10,309)
Date of construction | 1988 |  |  |
Date acquired | Sep-88 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 18,704 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,309 |  |  |
Encumbered Apartment Communities [Member] | Summerhill Park [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Summerhill Park [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | The Audrey at Belltown [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 137 |  |  |
Encumbrance |  |  |  | 19,767
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 9,228
Buildings and improvements |  |  |  | 36,911
Costs capitalized subsequent to acquisition |  |  |  | 958
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 9,228
Buildings and improvements |  |  |  | 37,869
Total | $ 47,097 |  |  | 47,097
Accumulated depreciation | $ (6,618) |  |  | (6,618)
Date of construction | 1992 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 47,097 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 6,618 |  |  |
Encumbered Apartment Communities [Member] | The Audrey at Belltown [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | The Audrey at Belltown [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | The Barkley [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 161 |  |  |
Encumbrance |  |  |  | 14,843
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 0
Buildings and improvements |  |  |  | 8,520
Costs capitalized subsequent to acquisition |  |  |  | 7,001
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,353
Buildings and improvements |  |  |  | 13,168
Total | $ 15,521 |  |  | 15,521
Accumulated depreciation | $ (8,354) |  |  | (8,354)
Date of construction | 1984 |  |  |
Date acquired | Apr-00 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 15,521 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,354 |  |  |
Encumbered Apartment Communities [Member] | The Barkley [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | The Barkley [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | The Dylan [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 184 |  |  |
Encumbrance |  |  |  | 59,163
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 19,984
Buildings and improvements |  |  |  | 82,286
Costs capitalized subsequent to acquisition |  |  |  | 834
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 19,990
Buildings and improvements |  |  |  | 83,114
Total | $ 103,104 |  |  | 103,104
Accumulated depreciation | $ (12,396) |  |  | (12,396)
Date of construction | 2015 |  |  |
Date acquired | Mar-15 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 103,104 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 12,396 |  |  |
Encumbered Apartment Communities [Member] | The Dylan [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | The Dylan [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | The Huntington [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 276 |  |  |
Encumbrance |  |  |  | 27,707
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 10,374
Buildings and improvements |  |  |  | 41,495
Costs capitalized subsequent to acquisition |  |  |  | 5,028
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 10,374
Buildings and improvements |  |  |  | 46,523
Total | $ 56,897 |  |  | 56,897
Accumulated depreciation | $ (11,692) |  |  | (11,692)
Date of construction | 1975 |  |  |
Date acquired | Jun-12 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 56,897 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,692 |  |  |
Encumbered Apartment Communities [Member] | The Huntington [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | The Huntington [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | The Huxley [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 187 |  |  |
Encumbrance |  |  |  | 53,874
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 19,362
Buildings and improvements |  |  |  | 75,641
Costs capitalized subsequent to acquisition |  |  |  | 1,321
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 19,371
Buildings and improvements |  |  |  | 76,953
Total | $ 96,324 |  |  | 96,324
Accumulated depreciation | $ (11,748) |  |  | (11,748)
Date of construction | 2014 |  |  |
Date acquired | Mar-15 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 96,324 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,748 |  |  |
Encumbered Apartment Communities [Member] | The Huxley [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | The Huxley [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | The Landing at Jack London Square [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 282 |  |  |
Encumbrance |  |  |  | 49,421
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 33,554
Buildings and improvements |  |  |  | 78,292
Costs capitalized subsequent to acquisition |  |  |  | 5,908
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 33,554
Buildings and improvements |  |  |  | 84,200
Total | $ 117,754 |  |  | 117,754
Accumulated depreciation | $ (16,132) |  |  | (16,132)
Date of construction | 2001 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 117,754 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 16,132 |  |  |
Encumbered Apartment Communities [Member] | The Landing at Jack London Square [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | The Landing at Jack London Square [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | The Palms at Laguna Niguel [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 460 |  |  |
Encumbrance |  |  |  | 52,887
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 23,584
Buildings and improvements |  |  |  | 94,334
Costs capitalized subsequent to acquisition |  |  |  | 8,094
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 23,584
Buildings and improvements |  |  |  | 102,428
Total | $ 126,012 |  |  | 126,012
Accumulated depreciation | $ (18,599) |  |  | (18,599)
Date of construction | 1988 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 126,012 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 18,599 |  |  |
Encumbered Apartment Communities [Member] | The Palms at Laguna Niguel [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | The Palms at Laguna Niguel [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | The Waterford [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 238 |  |  |
Encumbrance |  |  |  | 29,252
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 11,808
Buildings and improvements |  |  |  | 24,500
Costs capitalized subsequent to acquisition |  |  |  | 15,956
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 15,165
Buildings and improvements |  |  |  | 37,099
Total | $ 52,264 |  |  | 52,264
Accumulated depreciation | $ (21,980) |  |  | (21,980)
Date of construction | 2000 |  |  |
Date acquired | Jun-00 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 52,264 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 21,980 |  |  |
Encumbered Apartment Communities [Member] | The Waterford [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | The Waterford [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Valley Park [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 160 |  |  |
Encumbrance |  |  |  | 20,875
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,361
Buildings and improvements |  |  |  | 13,420
Costs capitalized subsequent to acquisition |  |  |  | 5,949
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,761
Buildings and improvements |  |  |  | 18,969
Total | $ 22,730 |  |  | 22,730
Accumulated depreciation | $ (10,761) |  |  | (10,761)
Date of construction | 1969 |  |  |
Date acquired | Nov-01 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 22,730 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,761 |  |  |
Encumbered Apartment Communities [Member] | Valley Park [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Valley Park [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Villa Angelina [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 256 |  |  |
Encumbrance |  |  |  | 27,184
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,498
Buildings and improvements |  |  |  | 17,962
Costs capitalized subsequent to acquisition |  |  |  | 7,398
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,962
Buildings and improvements |  |  |  | 24,896
Total | $ 29,858 |  |  | 29,858
Accumulated depreciation | $ (14,497) |  |  | (14,497)
Date of construction | 1970 |  |  |
Date acquired | Nov-01 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 29,858 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 14,497 |  |  |
Encumbered Apartment Communities [Member] | Villa Angelina [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Villa Angelina [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Villa Grenada [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 270 |  |  |
Encumbrance |  |  |  | 54,307
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 38,299
Buildings and improvements |  |  |  | 89,365
Costs capitalized subsequent to acquisition |  |  |  | 1,732
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 38,299
Buildings and improvements |  |  |  | 91,097
Total | $ 129,396 |  |  | 129,396
Accumulated depreciation | $ (16,216) |  |  | (16,216)
Date of construction | 2010 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 129,396 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 16,216 |  |  |
Encumbered Apartment Communities [Member] | Villa Grenada [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Encumbered Apartment Communities [Member] | Villa Grenada [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Wandering Creek [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 156 |  |  |
Encumbrance |  |  |  | 5,254
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 1,285
Buildings and improvements |  |  |  | 4,980
Costs capitalized subsequent to acquisition |  |  |  | 4,833
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 1,296
Buildings and improvements |  |  |  | 9,802
Total | $ 11,098 |  |  | 11,098
Accumulated depreciation | $ (7,521) |  |  | (7,521)
Date of construction | 1986 |  |  |
Date acquired | Nov-95 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,098 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 7,521 |  |  |
Encumbered Apartment Communities [Member] | Wandering Creek [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Wandering Creek [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Wilshire Promenade [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 149 |  |  |
Encumbrance |  |  |  | 16,189
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,118
Buildings and improvements |  |  |  | 7,385
Costs capitalized subsequent to acquisition |  |  |  | 9,124
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,797
Buildings and improvements |  |  |  | 15,830
Total | $ 19,627 |  |  | 19,627
Accumulated depreciation | $ (10,725) |  |  | (10,725)
Date of construction | 1992 |  |  |
Date acquired | Jan-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 19,627 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,725 |  |  |
Encumbered Apartment Communities [Member] | Wilshire Promenade [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | Wilshire Promenade [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Encumbered Apartment Communities [Member] | Ellington [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 220 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 15,066
Buildings and improvements |  |  |  | 45,249
Costs capitalized subsequent to acquisition |  |  |  | 3,535
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 15,066
Buildings and improvements |  |  |  | 48,784
Total | $ 63,850 |  |  | 63,850
Accumulated depreciation | $ (7,810) |  |  | (7,810)
Date of construction | 1994 |  |  |
Date acquired | Jul-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 63,850 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 7,810 |  |  |
Encumbered Apartment Communities [Member] | The Palisades [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Encumbered Apartment Communities [Member] | The Palisades [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 35,592 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 1,923,612
Buildings and improvements |  |  |  | 6,604,680
Costs capitalized subsequent to acquisition |  |  |  | 1,352,987
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 1,970,554
Buildings and improvements |  |  |  | 7,910,725
Total | $ 9,881,279 |  |  | 9,881,279
Accumulated depreciation | (2,329,714) |  |  | (2,329,714)
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | 9,881,279 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 2,329,714 |  |  |
Unencumbered Apartment Communities [Member] | Alessio [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 624 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 32,136
Buildings and improvements |  |  |  | 128,543
Costs capitalized subsequent to acquisition |  |  |  | 9,979
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 32,136
Buildings and improvements |  |  |  | 138,522
Total | $ 170,658 |  |  | 170,658
Accumulated depreciation | $ (25,383) |  |  | (25,383)
Date of construction | 2001 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 170,658 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 25,383 |  |  |
Unencumbered Apartment Communities [Member] | Alessio [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Alessio [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Allegro [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 97 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,869
Buildings and improvements |  |  |  | 23,977
Costs capitalized subsequent to acquisition |  |  |  | 2,304
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,869
Buildings and improvements |  |  |  | 26,281
Total | $ 32,150 |  |  | 32,150
Accumulated depreciation | $ (9,394) |  |  | (9,394)
Date of construction | 2010 |  |  |
Date acquired | Oct-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 32,150 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 9,394 |  |  |
Unencumbered Apartment Communities [Member] | Allegro [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Allegro [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Allure at Scripps Ranch [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 194 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 11,923
Buildings and improvements |  |  |  | 47,690
Costs capitalized subsequent to acquisition |  |  |  | 1,394
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 11,923
Buildings and improvements |  |  |  | 49,084
Total | $ 61,007 |  |  | 61,007
Accumulated depreciation | $ (8,699) |  |  | (8,699)
Date of construction | 2002 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 61,007 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,699 |  |  |
Unencumbered Apartment Communities [Member] | Allure at Scripps Ranch [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Allure at Scripps Ranch [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Alpine Village [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 301 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,967
Buildings and improvements |  |  |  | 19,728
Costs capitalized subsequent to acquisition |  |  |  | 8,602
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,982
Buildings and improvements |  |  |  | 28,315
Total | $ 33,297 |  |  | 33,297
Accumulated depreciation | $ (15,526) |  |  | (15,526)
Date of construction | 1971 |  |  |
Date acquired | Dec-02 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 33,297 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 15,526 |  |  |
Unencumbered Apartment Communities [Member] | Alpine Village [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Alpine Village [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Anavia [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 250 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 15,925
Buildings and improvements |  |  |  | 63,712
Costs capitalized subsequent to acquisition |  |  |  | 7,985
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 15,925
Buildings and improvements |  |  |  | 71,697
Total | $ 87,622 |  |  | 87,622
Accumulated depreciation | $ (19,857) |  |  | (19,857)
Date of construction | 2009 |  |  |
Date acquired | Dec-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 87,622 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 19,857 |  |  |
Unencumbered Apartment Communities [Member] | Anavia [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Anavia [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Annaliese [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 56 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,727
Buildings and improvements |  |  |  | 14,229
Costs capitalized subsequent to acquisition |  |  |  | 613
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,726
Buildings and improvements |  |  |  | 14,843
Total | $ 19,569 |  |  | 19,569
Accumulated depreciation | $ (3,047) |  |  | (3,047)
Date of construction | 2009 |  |  |
Date acquired | Jan-13 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 19,569 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 3,047 |  |  |
Unencumbered Apartment Communities [Member] | Annaliese [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Annaliese [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Apex [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 366 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 44,240
Buildings and improvements |  |  |  | 103,251
Costs capitalized subsequent to acquisition |  |  |  | 3,321
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 44,240
Buildings and improvements |  |  |  | 106,572
Total | $ 150,812 |  |  | 150,812
Accumulated depreciation | $ (15,479) |  |  | (15,479)
Date of construction | 2014 |  |  |
Date acquired | Aug-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 150,812 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 15,479 |  |  |
Unencumbered Apartment Communities [Member] | Apex [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Apex [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Aqua at Marina Del Rey [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 500 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 58,442
Buildings and improvements |  |  |  | 175,326
Costs capitalized subsequent to acquisition |  |  |  | 13,232
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 58,442
Buildings and improvements |  |  |  | 188,558
Total | $ 247,000 |  |  | 247,000
Accumulated depreciation | $ (35,960) |  |  | (35,960)
Date of construction | 2001 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 247,000 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 35,960 |  |  |
Unencumbered Apartment Communities [Member] | Aqua at Marina Del Rey [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Aqua at Marina Del Rey [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Ascent [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 90 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,924
Buildings and improvements |  |  |  | 11,862
Costs capitalized subsequent to acquisition |  |  |  | 2,014
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,924
Buildings and improvements |  |  |  | 13,876
Total | $ 17,800 |  |  | 17,800
Accumulated depreciation | $ (3,547) |  |  | (3,547)
Date of construction | 1988 |  |  |
Date acquired | Oct-12 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,800 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 3,547 |  |  |
Unencumbered Apartment Communities [Member] | Ascent [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Ascent [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Ashton Sherman Village [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 264 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 23,550
Buildings and improvements |  |  |  | 93,811
Costs capitalized subsequent to acquisition |  |  |  | 489
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 23,550
Buildings and improvements |  |  |  | 94,300
Total | $ 117,850 |  |  | 117,850
Accumulated depreciation | $ (6,777) |  |  | (6,777)
Date of construction | 2014 |  |  |
Date acquired | Dec-16 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 117,850 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 6,777 |  |  |
Unencumbered Apartment Communities [Member] | Ashton Sherman Village [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Ashton Sherman Village [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Avant [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 440 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 32,379
Buildings and improvements |  |  |  | 137,940
Costs capitalized subsequent to acquisition |  |  |  | 1,949
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 32,379
Buildings and improvements |  |  |  | 139,889
Total | $ 172,268 |  |  | 172,268
Accumulated depreciation | $ (16,452) |  |  | (16,452)
Date of construction | 2014 |  |  |
Date acquired | Jun-15 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 172,268 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 16,452 |  |  |
Unencumbered Apartment Communities [Member] | Avant [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Avant [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Avenue 64 [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 224 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 27,235
Buildings and improvements |  |  |  | 64,403
Costs capitalized subsequent to acquisition |  |  |  | 14,377
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 27,235
Buildings and improvements |  |  |  | 78,780
Total | $ 106,015 |  |  | 106,015
Accumulated depreciation | $ (13,015) |  |  | (13,015)
Date of construction | 2007 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 106,015 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,015 |  |  |
Unencumbered Apartment Communities [Member] | Avenue 64 [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Avenue 64 [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Aviara [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 166 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 0
Buildings and improvements |  |  |  | 49,813
Costs capitalized subsequent to acquisition |  |  |  | 1,063
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 0
Buildings and improvements |  |  |  | 50,876
Total | $ 50,876 |  |  | 50,876
Accumulated depreciation | $ (9,998) |  |  | (9,998)
Date of construction | 2013 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 50,876 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 9,998 |  |  |
Unencumbered Apartment Communities [Member] | Aviara [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Aviara [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Axis 2300 [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 115 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,405
Buildings and improvements |  |  |  | 33,585
Costs capitalized subsequent to acquisition |  |  |  | 1,674
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,405
Buildings and improvements |  |  |  | 35,259
Total | $ 40,664 |  |  | 40,664
Accumulated depreciation | $ (12,341) |  |  | (12,341)
Date of construction | 2010 |  |  |
Date acquired | Aug-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 40,664 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 12,341 |  |  |
Unencumbered Apartment Communities [Member] | Axis 2300 [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Axis 2300 [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Bella Villagio [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 231 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 17,247
Buildings and improvements |  |  |  | 40,343
Costs capitalized subsequent to acquisition |  |  |  | 3,540
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 17,247
Buildings and improvements |  |  |  | 43,883
Total | $ 61,130 |  |  | 61,130
Accumulated depreciation | $ (13,122) |  |  | (13,122)
Date of construction | 2004 |  |  |
Date acquired | Sep-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 61,130 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,122 |  |  |
Unencumbered Apartment Communities [Member] | Bella Villagio [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Bella Villagio [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Bellerive [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 63 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,401
Buildings and improvements |  |  |  | 21,803
Costs capitalized subsequent to acquisition |  |  |  | 1,189
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,401
Buildings and improvements |  |  |  | 22,992
Total | $ 28,393 |  |  | 28,393
Accumulated depreciation | $ (6,962) |  |  | (6,962)
Date of construction | 2011 |  |  |
Date acquired | Aug-11 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 28,393 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 6,962 |  |  |
Unencumbered Apartment Communities [Member] | Bellerive [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Bellerive [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Belmont Terrace [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 71 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,446
Buildings and improvements |  |  |  | 10,290
Costs capitalized subsequent to acquisition |  |  |  | 6,946
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,473
Buildings and improvements |  |  |  | 17,209
Total | $ 21,682 |  |  | 21,682
Accumulated depreciation | $ (8,257) |  |  | (8,257)
Date of construction | 1974 |  |  |
Date acquired | Oct-06 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 21,682 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,257 |  |  |
Unencumbered Apartment Communities [Member] | Belmont Terrace [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Belmont Terrace [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Bennett Lofts [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 165 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 21,771
Buildings and improvements |  |  |  | 50,800
Costs capitalized subsequent to acquisition |  |  |  | 29,672
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 28,371
Buildings and improvements |  |  |  | 73,872
Total | $ 102,243 |  |  | 102,243
Accumulated depreciation | $ (16,319) |  |  | (16,319)
Date of construction | 2004 |  |  |
Date acquired | Dec-12 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 102,243 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 16,319 |  |  |
Unencumbered Apartment Communities [Member] | Bennett Lofts [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Bennett Lofts [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Bernardo Crest [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 216 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 10,802
Buildings and improvements |  |  |  | 43,209
Costs capitalized subsequent to acquisition |  |  |  | 3,665
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 10,802
Buildings and improvements |  |  |  | 46,874
Total | $ 57,676 |  |  | 57,676
Accumulated depreciation | $ (8,539) |  |  | (8,539)
Date of construction | 1988 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 57,676 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,539 |  |  |
Unencumbered Apartment Communities [Member] | Bernardo Crest [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Bernardo Crest [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Bonita Cedars [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 120 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,496
Buildings and improvements |  |  |  | 9,913
Costs capitalized subsequent to acquisition |  |  |  | 5,160
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,503
Buildings and improvements |  |  |  | 15,066
Total | $ 17,569 |  |  | 17,569
Accumulated depreciation | $ (7,598) |  |  | (7,598)
Date of construction | 1983 |  |  |
Date acquired | Dec-02 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,569 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 7,598 |  |  |
Unencumbered Apartment Communities [Member] | Bonita Cedars [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Bonita Cedars [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Boulevard [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 172 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,520
Buildings and improvements |  |  |  | 8,182
Costs capitalized subsequent to acquisition |  |  |  | 13,860
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,580
Buildings and improvements |  |  |  | 21,982
Total | $ 25,562 |  |  | 25,562
Accumulated depreciation | $ (17,002) |  |  | (17,002)
Date of construction | 1978 |  |  |
Date acquired | Jan-96 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 25,562 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,002 |  |  |
Unencumbered Apartment Communities [Member] | Boulevard [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Boulevard [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Bridle Trails [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 108 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 1,500
Buildings and improvements |  |  |  | 5,930
Costs capitalized subsequent to acquisition |  |  |  | 6,154
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 1,531
Buildings and improvements |  |  |  | 12,053
Total | $ 13,584 |  |  | 13,584
Accumulated depreciation | $ (8,499) |  |  | (8,499)
Date of construction | 1986 |  |  |
Date acquired | Oct-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,584 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,499 |  |  |
Unencumbered Apartment Communities [Member] | Bridle Trails [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Bridle Trails [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Brighton Ridge [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 264 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,623
Buildings and improvements |  |  |  | 10,800
Costs capitalized subsequent to acquisition |  |  |  | 5,486
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,656
Buildings and improvements |  |  |  | 16,253
Total | $ 18,909 |  |  | 18,909
Accumulated depreciation | $ (11,818) |  |  | (11,818)
Date of construction | 1986 |  |  |
Date acquired | Dec-96 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 18,909 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,818 |  |  |
Unencumbered Apartment Communities [Member] | Brighton Ridge [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Brighton Ridge [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Bristol Commons [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 188 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,278
Buildings and improvements |  |  |  | 11,853
Costs capitalized subsequent to acquisition |  |  |  | 9,272
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,293
Buildings and improvements |  |  |  | 21,110
Total | $ 26,403 |  |  | 26,403
Accumulated depreciation | $ (14,211) |  |  | (14,211)
Date of construction | 1989 |  |  |
Date acquired | Jan-95 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 26,403 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 14,211 |  |  |
Unencumbered Apartment Communities [Member] | Bristol Commons [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Bristol Commons [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | 416 on Broadway [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 115 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 8,557
Buildings and improvements |  |  |  | 34,235
Costs capitalized subsequent to acquisition |  |  |  | 2,973
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 8,557
Buildings and improvements |  |  |  | 37,208
Total | $ 45,765 |  |  | 45,765
Accumulated depreciation | $ (10,982) |  |  | (10,982)
Date of construction | 2009 |  |  |
Date acquired | Dec-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 45,765 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,982 |  |  |
Unencumbered Apartment Communities [Member] | 416 on Broadway [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | 416 on Broadway [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Bunker Hill [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 456 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 11,498
Buildings and improvements |  |  |  | 27,871
Costs capitalized subsequent to acquisition |  |  |  | 83,972
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 11,639
Buildings and improvements |  |  |  | 111,702
Total | $ 123,341 |  |  | 123,341
Accumulated depreciation | $ (54,527) |  |  | (54,527)
Date of construction | 1968 |  |  |
Date acquired | Mar-98 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 123,341 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 54,527 |  |  |
Unencumbered Apartment Communities [Member] | Bunker Hill [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Bunker Hill [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Camarillo Oaks [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 564 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 10,953
Buildings and improvements |  |  |  | 25,254
Costs capitalized subsequent to acquisition |  |  |  | 7,791
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 11,075
Buildings and improvements |  |  |  | 32,923
Total | $ 43,998 |  |  | 43,998
Accumulated depreciation | $ (23,428) |  |  | (23,428)
Date of construction | 1985 |  |  |
Date acquired | Jul-96 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 43,998 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 23,428 |  |  |
Unencumbered Apartment Communities [Member] | Camarillo Oaks [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Camarillo Oaks [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Cambridge Park [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 320 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 18,185
Buildings and improvements |  |  |  | 72,739
Costs capitalized subsequent to acquisition |  |  |  | 2,974
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 18,185
Buildings and improvements |  |  |  | 75,713
Total | $ 93,898 |  |  | 93,898
Accumulated depreciation | $ (13,776) |  |  | (13,776)
Date of construction | 1998 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 93,898 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,776 |  |  |
Unencumbered Apartment Communities [Member] | Cambridge Park [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Cambridge Park [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Camino Ruiz Square [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 159 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,871
Buildings and improvements |  |  |  | 26,119
Costs capitalized subsequent to acquisition |  |  |  | 1,965
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,931
Buildings and improvements |  |  |  | 28,024
Total | $ 34,955 |  |  | 34,955
Accumulated depreciation | $ (11,628) |  |  | (11,628)
Date of construction | 1990 |  |  |
Date acquired | Dec-06 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 34,955 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,628 |  |  |
Unencumbered Apartment Communities [Member] | Camino Ruiz Square [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Camino Ruiz Square [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Canyon Oaks [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 250 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 19,088
Buildings and improvements |  |  |  | 44,473
Costs capitalized subsequent to acquisition |  |  |  | 4,232
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 19,088
Buildings and improvements |  |  |  | 48,705
Total | $ 67,793 |  |  | 67,793
Accumulated depreciation | $ (19,542) |  |  | (19,542)
Date of construction | 2005 |  |  |
Date acquired | May-07 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 67,793 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 19,542 |  |  |
Unencumbered Apartment Communities [Member] | Canyon Oaks [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Canyon Oaks [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Canyon Pointe [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 250 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,692
Buildings and improvements |  |  |  | 18,288
Costs capitalized subsequent to acquisition |  |  |  | 8,142
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,693
Buildings and improvements |  |  |  | 26,429
Total | $ 31,122 |  |  | 31,122
Accumulated depreciation | $ (14,475) |  |  | (14,475)
Date of construction | 1990 |  |  |
Date acquired | Oct-03 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 31,122 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 14,475 |  |  |
Unencumbered Apartment Communities [Member] | Canyon Pointe [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Canyon Pointe [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Capri at Sunny Hills [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 102 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,337
Buildings and improvements |  |  |  | 13,320
Costs capitalized subsequent to acquisition |  |  |  | 9,319
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,048
Buildings and improvements |  |  |  | 21,928
Total | $ 25,976 |  |  | 25,976
Accumulated depreciation | $ (13,479) |  |  | (13,479)
Date of construction | 1961 |  |  |
Date acquired | Sep-01 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 25,976 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,479 |  |  |
Unencumbered Apartment Communities [Member] | Capri at Sunny Hills [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Capri at Sunny Hills [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Carnel Landing [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 356 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 16,725
Buildings and improvements |  |  |  | 66,901
Costs capitalized subsequent to acquisition |  |  |  | 7,589
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 16,725
Buildings and improvements |  |  |  | 74,490
Total | $ 91,215 |  |  | 91,215
Accumulated depreciation | $ (13,639) |  |  | (13,639)
Date of construction | 1989 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 91,215 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,639 |  |  |
Unencumbered Apartment Communities [Member] | Carnel Landing [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Carnel Landing [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Carnel Summit [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 246 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 14,968
Buildings and improvements |  |  |  | 59,871
Costs capitalized subsequent to acquisition |  |  |  | 3,514
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 14,968
Buildings and improvements |  |  |  | 63,385
Total | $ 78,353 |  |  | 78,353
Accumulated depreciation | $ (11,342) |  |  | (11,342)
Date of construction | 1989 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 78,353 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,342 |  |  |
Unencumbered Apartment Communities [Member] | Carnel Summit [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Carnel Summit [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Castle Creek [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 216 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,149
Buildings and improvements |  |  |  | 16,028
Costs capitalized subsequent to acquisition |  |  |  | 4,500
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,833
Buildings and improvements |  |  |  | 19,844
Total | $ 24,677 |  |  | 24,677
Accumulated depreciation | $ (13,953) |  |  | (13,953)
Date of construction | 1998 |  |  |
Date acquired | Dec-98 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 24,677 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,953 |  |  |
Unencumbered Apartment Communities [Member] | Castle Creek [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Castle Creek [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Catalina Gardens [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 128 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,714
Buildings and improvements |  |  |  | 26,856
Costs capitalized subsequent to acquisition |  |  |  | 1,485
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,714
Buildings and improvements |  |  |  | 28,341
Total | $ 35,055 |  |  | 35,055
Accumulated depreciation | $ (5,018) |  |  | (5,018)
Date of construction | 1987 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 35,055 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 5,018 |  |  |
Unencumbered Apartment Communities [Member] | Catalina Gardens [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Catalina Gardens [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | CBC Apartments and The Sweeps [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 239 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 11,841
Buildings and improvements |  |  |  | 45,320
Costs capitalized subsequent to acquisition |  |  |  | 6,556
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 11,906
Buildings and improvements |  |  |  | 51,811
Total | $ 63,717 |  |  | 63,717
Accumulated depreciation | $ (24,758) |  |  | (24,758)
Date of construction | 1962 |  |  |
Date acquired | Jan-06 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 63,717 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 24,758 |  |  |
Unencumbered Apartment Communities [Member] | CBC Apartments and The Sweeps [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | CBC Apartments and The Sweeps [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Cedar Terrace [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 180 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,543
Buildings and improvements |  |  |  | 16,442
Costs capitalized subsequent to acquisition |  |  |  | 7,214
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,652
Buildings and improvements |  |  |  | 23,547
Total | $ 29,199 |  |  | 29,199
Accumulated depreciation | $ (11,598) |  |  | (11,598)
Date of construction | 1984 |  |  |
Date acquired | Jan-05 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 29,199 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,598 |  |  |
Unencumbered Apartment Communities [Member] | Cedar Terrace [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Cedar Terrace [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | CentrePointe [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 224 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,405
Buildings and improvements |  |  |  | 7,743
Costs capitalized subsequent to acquisition |  |  |  | 21,354
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,442
Buildings and improvements |  |  |  | 29,060
Total | $ 32,502 |  |  | 32,502
Accumulated depreciation | $ (18,300) |  |  | (18,300)
Date of construction | 1974 |  |  |
Date acquired | Jun-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 32,502 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 18,300 |  |  |
Unencumbered Apartment Communities [Member] | CentrePointe [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | CentrePointe [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Chestnut Street Apartments [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 96 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,582
Buildings and improvements |  |  |  | 15,689
Costs capitalized subsequent to acquisition |  |  |  | 1,995
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,582
Buildings and improvements |  |  |  | 17,684
Total | $ 24,266 |  |  | 24,266
Accumulated depreciation | $ (6,512) |  |  | (6,512)
Date of construction | 2002 |  |  |
Date acquired | Jul-08 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 24,266 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 6,512 |  |  |
Unencumbered Apartment Communities [Member] | Chestnut Street Apartments [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Chestnut Street Apartments [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Collins On Pine [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 76 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 7,276
Buildings and improvements |  |  |  | 22,226
Costs capitalized subsequent to acquisition |  |  |  | 328
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 7,276
Buildings and improvements |  |  |  | 22,554
Total | $ 29,830 |  |  | 29,830
Accumulated depreciation | $ (3,520) |  |  | (3,520)
Date of construction | 2013 |  |  |
Date acquired | May-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 29,830 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 3,520 |  |  |
Unencumbered Apartment Communities [Member] | Collins On Pine [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Collins On Pine [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Corbella at Juanita Bay [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 169 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,801
Buildings and improvements |  |  |  | 17,415
Costs capitalized subsequent to acquisition |  |  |  | 3,165
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,801
Buildings and improvements |  |  |  | 20,580
Total | $ 26,381 |  |  | 26,381
Accumulated depreciation | $ (6,279) |  |  | (6,279)
Date of construction | 1978 |  |  |
Date acquired | Nov-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 26,381 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 6,279 |  |  |
Unencumbered Apartment Communities [Member] | Corbella at Juanita Bay [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Corbella at Juanita Bay [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Cortesia [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 308 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 13,912
Buildings and improvements |  |  |  | 55,649
Costs capitalized subsequent to acquisition |  |  |  | 2,492
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 13,912
Buildings and improvements |  |  |  | 58,141
Total | $ 72,053 |  |  | 72,053
Accumulated depreciation | $ (10,430) |  |  | (10,430)
Date of construction | 1999 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 72,053 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,430 |  |  |
Unencumbered Apartment Communities [Member] | Cortesia [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Cortesia [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Country Villas [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 180 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,174
Buildings and improvements |  |  |  | 16,583
Costs capitalized subsequent to acquisition |  |  |  | 5,074
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,187
Buildings and improvements |  |  |  | 21,644
Total | $ 25,831 |  |  | 25,831
Accumulated depreciation | $ (11,954) |  |  | (11,954)
Date of construction | 1976 |  |  |
Date acquired | Dec-02 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 25,831 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,954 |  |  |
Unencumbered Apartment Communities [Member] | Country Villas [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Country Villas [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Crow Canyon [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 400 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 37,579
Buildings and improvements |  |  |  | 87,685
Costs capitalized subsequent to acquisition |  |  |  | 9,894
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 37,579
Buildings and improvements |  |  |  | 97,579
Total | $ 135,158 |  |  | 135,158
Accumulated depreciation | $ (17,605) |  |  | (17,605)
Date of construction | 1992 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 135,158 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,605 |  |  |
Unencumbered Apartment Communities [Member] | Crow Canyon [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Crow Canyon [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Deer Valley [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 171 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 21,478
Buildings and improvements |  |  |  | 50,116
Costs capitalized subsequent to acquisition |  |  |  | 2,481
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 21,478
Buildings and improvements |  |  |  | 52,597
Total | $ 74,075 |  |  | 74,075
Accumulated depreciation | $ (9,580) |  |  | (9,580)
Date of construction | 1996 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 74,075 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 9,580 |  |  |
Unencumbered Apartment Communities [Member] | Deer Valley [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Deer Valley [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Delano [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 126 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 7,470
Buildings and improvements |  |  |  | 22,511
Costs capitalized subsequent to acquisition |  |  |  | 1,330
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 7,470
Buildings and improvements |  |  |  | 23,841
Total | $ 31,311 |  |  | 31,311
Accumulated depreciation | $ (5,852) |  |  | (5,852)
Date of construction | 2005 |  |  |
Date acquired | Dec-11 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 31,311 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 5,852 |  |  |
Unencumbered Apartment Communities [Member] | Delano [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Delano [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Devonshire [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 276 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,470
Buildings and improvements |  |  |  | 13,786
Costs capitalized subsequent to acquisition |  |  |  | 4,993
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,482
Buildings and improvements |  |  |  | 18,767
Total | $ 22,249 |  |  | 22,249
Accumulated depreciation | $ (10,271) |  |  | (10,271)
Date of construction | 1988 |  |  |
Date acquired | Dec-02 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 22,249 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,271 |  |  |
Unencumbered Apartment Communities [Member] | Devonshire [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Devonshire [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Ellington [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Ellington [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Emerald Pointe [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 160 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 8,458
Buildings and improvements |  |  |  | 33,832
Costs capitalized subsequent to acquisition |  |  |  | 1,869
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 8,458
Buildings and improvements |  |  |  | 35,701
Total | $ 44,159 |  |  | 44,159
Accumulated depreciation | $ (6,477) |  |  | (6,477)
Date of construction | 1989 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 44,159 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 6,477 |  |  |
Unencumbered Apartment Communities [Member] | Emerald Pointe [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Emerald Pointe [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Emerald Ridge [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 180 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,449
Buildings and improvements |  |  |  | 7,801
Costs capitalized subsequent to acquisition |  |  |  | 5,871
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,449
Buildings and improvements |  |  |  | 13,672
Total | $ 17,121 |  |  | 17,121
Accumulated depreciation | $ (10,213) |  |  | (10,213)
Date of construction | 1987 |  |  |
Date acquired | Nov-94 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,121 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,213 |  |  |
Unencumbered Apartment Communities [Member] | Emerald Ridge [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Emerald Ridge [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Emerson Valley Village [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 144 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 13,378
Buildings and improvements |  |  |  | 53,240
Costs capitalized subsequent to acquisition |  |  |  | 408
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 13,378
Buildings and improvements |  |  |  | 53,648
Total | $ 67,026 |  |  | 67,026
Accumulated depreciation | $ (3,861) |  |  | (3,861)
Date of construction | 2012 |  |  |
Date acquired | Dec-16 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 67,026 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 3,861 |  |  |
Unencumbered Apartment Communities [Member] | Emerson Valley Village [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Emerson Valley Village [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Enso [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 183 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 21,397
Buildings and improvements |  |  |  | 71,135
Costs capitalized subsequent to acquisition |  |  |  | 1,490
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 21,397
Buildings and improvements |  |  |  | 72,625
Total | $ 94,022 |  |  | 94,022
Accumulated depreciation | $ (7,869) |  |  | (7,869)
Date of construction | 2014 |  |  |
Date acquired | Dec-15 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 94,022 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 7,869 |  |  |
Unencumbered Apartment Communities [Member] | Enso [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Enso [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Esplanade [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 278 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 18,170
Buildings and improvements |  |  |  | 40,086
Costs capitalized subsequent to acquisition |  |  |  | 13,540
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 18,429
Buildings and improvements |  |  |  | 53,367
Total | $ 71,796 |  |  | 71,796
Accumulated depreciation | $ (26,905) |  |  | (26,905)
Date of construction | 2002 |  |  |
Date acquired | Apr-04 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 71,796 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 26,905 |  |  |
Unencumbered Apartment Communities [Member] | Esplanade [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Esplanade [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Essex Skyline [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 349 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 21,537
Buildings and improvements |  |  |  | 146,099
Costs capitalized subsequent to acquisition |  |  |  | 7,313
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 21,537
Buildings and improvements |  |  |  | 153,412
Total | $ 174,949 |  |  | 174,949
Accumulated depreciation | $ (35,662) |  |  | (35,662)
Date of construction | 2008 |  |  |
Date acquired | Apr-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 174,949 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 35,662 |  |  |
Unencumbered Apartment Communities [Member] | Essex Skyline [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Essex Skyline [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Evergreen Heights [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 200 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,566
Buildings and improvements |  |  |  | 13,395
Costs capitalized subsequent to acquisition |  |  |  | 6,026
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,649
Buildings and improvements |  |  |  | 19,338
Total | $ 22,987 |  |  | 22,987
Accumulated depreciation | $ (13,793) |  |  | (13,793)
Date of construction | 1990 |  |  |
Date acquired | Jun-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 22,987 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,793 |  |  |
Unencumbered Apartment Communities [Member] | Evergreen Heights [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Evergreen Heights [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Fairway Apartments at Big Canyon [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 74 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 0
Buildings and improvements |  |  |  | 7,850
Costs capitalized subsequent to acquisition |  |  |  | 7,923
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 0
Buildings and improvements |  |  |  | 15,773
Total | $ 15,773 |  |  | 15,773
Accumulated depreciation | $ (10,717) |  |  | (10,717)
Date of construction | 1972 |  |  |
Date acquired | Jun-99 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 15,773 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,717 |  |  |
Unencumbered Apartment Communities [Member] | Fairway Apartments at Big Canyon [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Fairway Apartments at Big Canyon [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 28 years |  |  |
Unencumbered Apartment Communities [Member] | Fairwood Pond [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 194 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,296
Buildings and improvements |  |  |  | 15,564
Costs capitalized subsequent to acquisition |  |  |  | 3,800
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,297
Buildings and improvements |  |  |  | 19,363
Total | $ 24,660 |  |  | 24,660
Accumulated depreciation | $ (9,745) |  |  | (9,745)
Date of construction | 1997 |  |  |
Date acquired | Oct-04 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 24,660 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 9,745 |  |  |
Unencumbered Apartment Communities [Member] | Fairwood Pond [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Fairwood Pond [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Foothill Commons [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 394 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,435
Buildings and improvements |  |  |  | 9,821
Costs capitalized subsequent to acquisition |  |  |  | 39,812
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,440
Buildings and improvements |  |  |  | 49,628
Total | $ 52,068 |  |  | 52,068
Accumulated depreciation | $ (42,805) |  |  | (42,805)
Date of construction | 1978 |  |  |
Date acquired | Mar-90 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 52,068 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 42,805 |  |  |
Unencumbered Apartment Communities [Member] | Foothill Commons [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Foothill Commons [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Foothill Gardens/Twin Creeks [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 176 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,875
Buildings and improvements |  |  |  | 13,992
Costs capitalized subsequent to acquisition |  |  |  | 10,803
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,964
Buildings and improvements |  |  |  | 24,706
Total | $ 30,670 |  |  | 30,670
Accumulated depreciation | $ (16,790) |  |  | (16,790)
Date of construction | 1985 |  |  |
Date acquired | Feb-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 30,670 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 16,790 |  |  |
Unencumbered Apartment Communities [Member] | Foothill Gardens/Twin Creeks [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Foothill Gardens/Twin Creeks [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Forest View [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 192 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,731
Buildings and improvements |  |  |  | 14,530
Costs capitalized subsequent to acquisition |  |  |  | 2,843
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,731
Buildings and improvements |  |  |  | 17,373
Total | $ 21,104 |  |  | 21,104
Accumulated depreciation | $ (9,071) |  |  | (9,071)
Date of construction | 1998 |  |  |
Date acquired | Oct-03 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 21,104 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 9,071 |  |  |
Unencumbered Apartment Communities [Member] | Forest View [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Forest View [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Fountain Court [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 320 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,702
Buildings and improvements |  |  |  | 27,306
Costs capitalized subsequent to acquisition |  |  |  | 12,238
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,585
Buildings and improvements |  |  |  | 39,661
Total | $ 46,246 |  |  | 46,246
Accumulated depreciation | $ (25,952) |  |  | (25,952)
Date of construction | 2000 |  |  |
Date acquired | Mar-00 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 46,246 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 25,952 |  |  |
Unencumbered Apartment Communities [Member] | Fountain Court [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Fountain Court [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Fourth & U [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 171 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 8,879
Buildings and improvements |  |  |  | 52,351
Costs capitalized subsequent to acquisition |  |  |  | 3,228
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 8,879
Buildings and improvements |  |  |  | 55,579
Total | $ 64,458 |  |  | 64,458
Accumulated depreciation | $ (17,580) |  |  | (17,580)
Date of construction | 2010 |  |  |
Date acquired | Apr-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 64,458 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,580 |  |  |
Unencumbered Apartment Communities [Member] | Fourth & U [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Fourth & U [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Fox Plaza [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 445 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 39,731
Buildings and improvements |  |  |  | 92,706
Costs capitalized subsequent to acquisition |  |  |  | 28,996
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 39,731
Buildings and improvements |  |  |  | 121,702
Total | $ 161,433 |  |  | 161,433
Accumulated depreciation | $ (27,308) |  |  | (27,308)
Date of construction | 1968 |  |  |
Date acquired | Feb-13 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 161,433 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 27,308 |  |  |
Unencumbered Apartment Communities [Member] | Fox Plaza [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Fox Plaza [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Henley I/The Henley II [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 215 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,695
Buildings and improvements |  |  |  | 16,753
Costs capitalized subsequent to acquisition |  |  |  | 26,648
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,733
Buildings and improvements |  |  |  | 43,363
Total | $ 50,096 |  |  | 50,096
Accumulated depreciation | $ (22,504) |  |  | (22,504)
Date of construction | 1970 |  |  |
Date acquired | Jun-99 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 50,096 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 22,504 |  |  |
Unencumbered Apartment Communities [Member] | The Henley I/The Henley II [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | The Henley I/The Henley II [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Hillsdale Garden [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 697 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 22,000
Buildings and improvements |  |  |  | 94,681
Costs capitalized subsequent to acquisition |  |  |  | 23,237
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 22,000
Buildings and improvements |  |  |  | 117,918
Total | $ 139,918 |  |  | 139,918
Accumulated depreciation | $ (53,970) |  |  | (53,970)
Date of construction | 1948 |  |  |
Date acquired | Sep-06 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 139,918 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 53,970 |  |  |
Unencumbered Apartment Communities [Member] | Hillsdale Garden [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Hillsdale Garden [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Hope Ranch [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 108 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,078
Buildings and improvements |  |  |  | 16,877
Costs capitalized subsequent to acquisition |  |  |  | 2,915
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,208
Buildings and improvements |  |  |  | 19,662
Total | $ 23,870 |  |  | 23,870
Accumulated depreciation | $ (7,931) |  |  | (7,931)
Date of construction | 1965 |  |  |
Date acquired | Mar-07 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 23,870 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 7,931 |  |  |
Unencumbered Apartment Communities [Member] | Hope Ranch [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Hope Ranch [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Joule [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 295 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 14,558
Buildings and improvements |  |  |  | 69,417
Costs capitalized subsequent to acquisition |  |  |  | 4,872
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 14,558
Buildings and improvements |  |  |  | 74,289
Total | $ 88,847 |  |  | 88,847
Accumulated depreciation | $ (24,020) |  |  | (24,020)
Date of construction | 2010 |  |  |
Date acquired | Mar-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 88,847 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 24,020 |  |  |
Unencumbered Apartment Communities [Member] | Joule [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Joule [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Kings Road [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 196 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,023
Buildings and improvements |  |  |  | 9,527
Costs capitalized subsequent to acquisition |  |  |  | 19,171
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,031
Buildings and improvements |  |  |  | 28,690
Total | $ 32,721 |  |  | 32,721
Accumulated depreciation | $ (15,924) |  |  | (15,924)
Date of construction | 1979 |  |  |
Date acquired | Jun-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 32,721 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 15,924 |  |  |
Unencumbered Apartment Communities [Member] | Kings Road [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Kings Road [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Lafayette Highlands [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 150 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 17,774
Buildings and improvements |  |  |  | 41,473
Costs capitalized subsequent to acquisition |  |  |  | 2,773
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 17,774
Buildings and improvements |  |  |  | 44,246
Total | $ 62,020 |  |  | 62,020
Accumulated depreciation | $ (7,883) |  |  | (7,883)
Date of construction | 1973 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 62,020 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 7,883 |  |  |
Unencumbered Apartment Communities [Member] | Lafayette Highlands [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Lafayette Highlands [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Lakeshore Landing [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 308 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 38,155
Buildings and improvements |  |  |  | 89,028
Costs capitalized subsequent to acquisition |  |  |  | 7,166
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 38,155
Buildings and improvements |  |  |  | 96,194
Total | $ 134,349 |  |  | 134,349
Accumulated depreciation | $ (18,412) |  |  | (18,412)
Date of construction | 1988 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 134,349 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 18,412 |  |  |
Unencumbered Apartment Communities [Member] | Lakeshore Landing [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Lakeshore Landing [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Laurels at Mill Creek [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 164 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 1,559
Buildings and improvements |  |  |  | 6,430
Costs capitalized subsequent to acquisition |  |  |  | 7,228
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 1,595
Buildings and improvements |  |  |  | 13,622
Total | $ 15,217 |  |  | 15,217
Accumulated depreciation | $ (9,827) |  |  | (9,827)
Date of construction | 1981 |  |  |
Date acquired | Dec-96 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 15,217 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 9,827 |  |  |
Unencumbered Apartment Communities [Member] | Laurels at Mill Creek [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Laurels at Mill Creek [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Lawrence Station [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 336 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 45,532
Buildings and improvements |  |  |  | 106,735
Costs capitalized subsequent to acquisition |  |  |  | 1,530
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 45,532
Buildings and improvements |  |  |  | 108,265
Total | $ 153,797 |  |  | 153,797
Accumulated depreciation | $ (23,222) |  |  | (23,222)
Date of construction | 2012 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 153,797 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 23,222 |  |  |
Unencumbered Apartment Communities [Member] | Lawrence Station [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Lawrence Station [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Le Parc [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 140 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,090
Buildings and improvements |  |  |  | 7,421
Costs capitalized subsequent to acquisition |  |  |  | 12,694
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,092
Buildings and improvements |  |  |  | 20,113
Total | $ 23,205 |  |  | 23,205
Accumulated depreciation | $ (15,581) |  |  | (15,581)
Date of construction | 1975 |  |  |
Date acquired | Feb-94 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 23,205 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 15,581 |  |  |
Unencumbered Apartment Communities [Member] | Le Parc [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Le Parc [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Marbrisa [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 202 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,700
Buildings and improvements |  |  |  | 18,605
Costs capitalized subsequent to acquisition |  |  |  | 9,216
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,760
Buildings and improvements |  |  |  | 27,761
Total | $ 32,521 |  |  | 32,521
Accumulated depreciation | $ (15,568) |  |  | (15,568)
Date of construction | 1987 |  |  |
Date acquired | Sep-02 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 32,521 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 15,568 |  |  |
Unencumbered Apartment Communities [Member] | Marbrisa [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Marbrisa [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Marina City Club [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 101 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 0
Buildings and improvements |  |  |  | 28,167
Costs capitalized subsequent to acquisition |  |  |  | 29,030
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 0
Buildings and improvements |  |  |  | 57,197
Total | $ 57,197 |  |  | 57,197
Accumulated depreciation | $ (26,137) |  |  | (26,137)
Date of construction | 1971 |  |  |
Date acquired | Jan-04 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 57,197 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 26,137 |  |  |
Unencumbered Apartment Communities [Member] | Marina City Club [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Marina City Club [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Marina Cove [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 292 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,320
Buildings and improvements |  |  |  | 16,431
Costs capitalized subsequent to acquisition |  |  |  | 15,312
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,324
Buildings and improvements |  |  |  | 31,739
Total | $ 37,063 |  |  | 37,063
Accumulated depreciation | $ (24,319) |  |  | (24,319)
Date of construction | 1974 |  |  |
Date acquired | Jun-94 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 37,063 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 24,319 |  |  |
Unencumbered Apartment Communities [Member] | Marina Cove [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Marina Cove [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Mariner's Place [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 105 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 1,555
Buildings and improvements |  |  |  | 6,103
Costs capitalized subsequent to acquisition |  |  |  | 2,464
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 1,562
Buildings and improvements |  |  |  | 8,560
Total | $ 10,122 |  |  | 10,122
Accumulated depreciation | $ (5,668) |  |  | (5,668)
Date of construction | 1987 |  |  |
Date acquired | May-00 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,122 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 5,668 |  |  |
Unencumbered Apartment Communities [Member] | Mariner's Place [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Mariner's Place [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | MB 360 [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 360 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 21,421
Buildings and improvements |  |  |  | 114,376
Costs capitalized subsequent to acquisition |  |  |  | 129,017
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 42,001
Buildings and improvements |  |  |  | 222,813
Total | $ 264,814 |  |  | 264,814
Accumulated depreciation | $ (31,219) |  |  | (31,219)
Date of construction | 2014 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 264,814 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 31,219 |  |  |
Unencumbered Apartment Communities [Member] | MB 360 [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | MB 360 [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Mesa Village [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 133 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 1,888
Buildings and improvements |  |  |  | 7,498
Costs capitalized subsequent to acquisition |  |  |  | 2,336
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 1,894
Buildings and improvements |  |  |  | 9,828
Total | $ 11,722 |  |  | 11,722
Accumulated depreciation | $ (5,120) |  |  | (5,120)
Date of construction | 1963 |  |  |
Date acquired | Dec-02 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,722 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 5,120 |  |  |
Unencumbered Apartment Communities [Member] | Mesa Village [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Mesa Village [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Mill Creek at Windermere [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 400 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 29,551
Buildings and improvements |  |  |  | 69,032
Costs capitalized subsequent to acquisition |  |  |  | 5,452
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 29,551
Buildings and improvements |  |  |  | 74,484
Total | $ 104,035 |  |  | 104,035
Accumulated depreciation | $ (29,077) |  |  | (29,077)
Date of construction | 2005 |  |  |
Date acquired | Sep-07 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 104,035 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 29,077 |  |  |
Unencumbered Apartment Communities [Member] | Mill Creek at Windermere [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Mill Creek at Windermere [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Mio [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 103 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 11,012
Buildings and improvements |  |  |  | 39,982
Costs capitalized subsequent to acquisition |  |  |  | 438
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 11,012
Buildings and improvements |  |  |  | 40,420
Total | $ 51,432 |  |  | 51,432
Accumulated depreciation | $ (4,232) |  |  | (4,232)
Date of construction | 2015 |  |  |
Date acquired | Jan-16 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 51,432 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 4,232 |  |  |
Unencumbered Apartment Communities [Member] | Mio [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Mio [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Mirabella [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 188 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,180
Buildings and improvements |  |  |  | 26,673
Costs capitalized subsequent to acquisition |  |  |  | 16,128
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,270
Buildings and improvements |  |  |  | 42,711
Total | $ 48,981 |  |  | 48,981
Accumulated depreciation | $ (24,505) |  |  | (24,505)
Date of construction | 2000 |  |  |
Date acquired | May-00 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 48,981 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 24,505 |  |  |
Unencumbered Apartment Communities [Member] | Mirabella [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Mirabella [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Mira Monte [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 354 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 7,165
Buildings and improvements |  |  |  | 28,459
Costs capitalized subsequent to acquisition |  |  |  | 11,509
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 7,186
Buildings and improvements |  |  |  | 39,947
Total | $ 47,133 |  |  | 47,133
Accumulated depreciation | $ (23,737) |  |  | (23,737)
Date of construction | 1982 |  |  |
Date acquired | Dec-02 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 47,133 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 23,737 |  |  |
Unencumbered Apartment Communities [Member] | Mira Monte [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Mira Monte [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Miracle Mile Marbella [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 236 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 7,791
Buildings and improvements |  |  |  | 23,075
Costs capitalized subsequent to acquisition |  |  |  | 14,830
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 7,886
Buildings and improvements |  |  |  | 37,810
Total | $ 45,696 |  |  | 45,696
Accumulated depreciation | $ (26,268) |  |  | (26,268)
Date of construction | 1988 |  |  |
Date acquired | Aug-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 45,696 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 26,268 |  |  |
Unencumbered Apartment Communities [Member] | Miracle Mile Marbella [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Miracle Mile Marbella [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Mission Hills [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 282 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 10,099
Buildings and improvements |  |  |  | 38,778
Costs capitalized subsequent to acquisition |  |  |  | 7,820
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 10,167
Buildings and improvements |  |  |  | 46,530
Total | $ 56,697 |  |  | 56,697
Accumulated depreciation | $ (22,211) |  |  | (22,211)
Date of construction | 1984 |  |  |
Date acquired | Jul-05 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 56,697 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 22,211 |  |  |
Unencumbered Apartment Communities [Member] | Mission Hills [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Mission Hills [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Mission Peaks [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 453 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 46,499
Buildings and improvements |  |  |  | 108,498
Costs capitalized subsequent to acquisition |  |  |  | 6,275
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 46,499
Buildings and improvements |  |  |  | 114,773
Total | $ 161,272 |  |  | 161,272
Accumulated depreciation | $ (20,332) |  |  | (20,332)
Date of construction | 1995 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 161,272 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 20,332 |  |  |
Unencumbered Apartment Communities [Member] | Mission Peaks [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Mission Peaks [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Mission Peaks II [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 336 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 31,429
Buildings and improvements |  |  |  | 73,334
Costs capitalized subsequent to acquisition |  |  |  | 5,549
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 31,429
Buildings and improvements |  |  |  | 78,883
Total | $ 110,312 |  |  | 110,312
Accumulated depreciation | $ (14,566) |  |  | (14,566)
Date of construction | 1989 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 110,312 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 14,566 |  |  |
Unencumbered Apartment Communities [Member] | Mission Peaks II [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Mission Peaks II [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Montclaire [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 390 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,842
Buildings and improvements |  |  |  | 19,776
Costs capitalized subsequent to acquisition |  |  |  | 26,772
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,997
Buildings and improvements |  |  |  | 46,393
Total | $ 51,390 |  |  | 51,390
Accumulated depreciation | $ (40,215) |  |  | (40,215)
Date of construction | 1973 |  |  |
Date acquired | Dec-88 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 51,390 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 40,215 |  |  |
Unencumbered Apartment Communities [Member] | Montclaire [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Montclaire [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Monterey Villas [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 122 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,349
Buildings and improvements |  |  |  | 5,579
Costs capitalized subsequent to acquisition |  |  |  | 6,723
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,424
Buildings and improvements |  |  |  | 12,227
Total | $ 14,651 |  |  | 14,651
Accumulated depreciation | $ (7,958) |  |  | (7,958)
Date of construction | 1974 |  |  |
Date acquired | Jul-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 14,651 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 7,958 |  |  |
Unencumbered Apartment Communities [Member] | Monterey Villas [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Monterey Villas [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Muse [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 152 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 7,822
Buildings and improvements |  |  |  | 33,436
Costs capitalized subsequent to acquisition |  |  |  | 3,201
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 7,823
Buildings and improvements |  |  |  | 36,636
Total | $ 44,459 |  |  | 44,459
Accumulated depreciation | $ (12,606) |  |  | (12,606)
Date of construction | 2011 |  |  |
Date acquired | Feb-11 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 44,459 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 12,606 |  |  |
Unencumbered Apartment Communities [Member] | Muse [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Muse [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Museum Park [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 117 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 13,864
Buildings and improvements |  |  |  | 32,348
Costs capitalized subsequent to acquisition |  |  |  | 1,642
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 13,864
Buildings and improvements |  |  |  | 33,990
Total | $ 47,854 |  |  | 47,854
Accumulated depreciation | $ (6,180) |  |  | (6,180)
Date of construction | 2002 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 47,854 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 6,180 |  |  |
Unencumbered Apartment Communities [Member] | Museum Park [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Museum Park [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Palm Valley [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 1,098 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 133,802
Buildings and improvements |  |  |  | 312,205
Costs capitalized subsequent to acquisition |  |  |  | 8,537
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 133,802
Buildings and improvements |  |  |  | 320,742
Total | $ 454,544 |  |  | 454,544
Accumulated depreciation | $ (22,477) |  |  | (22,477)
Date of construction | 2008 |  |  |
Date acquired | Jan-17 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 454,544 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 22,477 |  |  |
Unencumbered Apartment Communities [Member] | Palm Valley [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Palm Valley [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Paragon Apartments [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 301 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 32,230
Buildings and improvements |  |  |  | 77,320
Costs capitalized subsequent to acquisition |  |  |  | 1,553
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 32,230
Buildings and improvements |  |  |  | 78,873
Total | $ 111,103 |  |  | 111,103
Accumulated depreciation | $ (11,935) |  |  | (11,935)
Date of construction | 2013 |  |  |
Date acquired | Jul-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 111,103 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,935 |  |  |
Unencumbered Apartment Communities [Member] | Paragon Apartments [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Paragon Apartments [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Park Catalina [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 90 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,710
Buildings and improvements |  |  |  | 18,839
Costs capitalized subsequent to acquisition |  |  |  | 3,224
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,710
Buildings and improvements |  |  |  | 22,063
Total | $ 26,773 |  |  | 26,773
Accumulated depreciation | $ (5,926) |  |  | (5,926)
Date of construction | 2002 |  |  |
Date acquired | Jun-12 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 26,773 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 5,926 |  |  |
Unencumbered Apartment Communities [Member] | Park Catalina [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Park Catalina [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Park Hill at Issaquah [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 245 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 7,284
Buildings and improvements |  |  |  | 21,937
Costs capitalized subsequent to acquisition |  |  |  | 8,668
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 7,284
Buildings and improvements |  |  |  | 30,605
Total | $ 37,889 |  |  | 37,889
Accumulated depreciation | $ (14,860) |  |  | (14,860)
Date of construction | 1999 |  |  |
Date acquired | Feb-99 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 37,889 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 14,860 |  |  |
Unencumbered Apartment Communities [Member] | Park Hill at Issaquah [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Park Hill at Issaquah [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Park Viridian [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 320 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 15,894
Buildings and improvements |  |  |  | 63,574
Costs capitalized subsequent to acquisition |  |  |  | 3,302
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 15,894
Buildings and improvements |  |  |  | 66,876
Total | $ 82,770 |  |  | 82,770
Accumulated depreciation | $ (12,099) |  |  | (12,099)
Date of construction | 2008 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 82,770 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 12,099 |  |  |
Unencumbered Apartment Communities [Member] | Park Viridian [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Park Viridian [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Park West [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 126 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 9,424
Buildings and improvements |  |  |  | 21,988
Costs capitalized subsequent to acquisition |  |  |  | 12,288
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 9,424
Buildings and improvements |  |  |  | 34,276
Total | $ 43,700 |  |  | 43,700
Accumulated depreciation | $ (9,855) |  |  | (9,855)
Date of construction | 1958 |  |  |
Date acquired | Sep-12 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 43,700 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 9,855 |  |  |
Unencumbered Apartment Communities [Member] | Park West [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Park West [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Parkwood at Mill Creek [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 240 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 10,680
Buildings and improvements |  |  |  | 42,722
Costs capitalized subsequent to acquisition |  |  |  | 2,808
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 10,680
Buildings and improvements |  |  |  | 45,530
Total | $ 56,210 |  |  | 56,210
Accumulated depreciation | $ (8,402) |  |  | (8,402)
Date of construction | 1989 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 56,210 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,402 |  |  |
Unencumbered Apartment Communities [Member] | Parkwood at Mill Creek [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Parkwood at Mill Creek [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Pathways at Bixby Village [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 296 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,083
Buildings and improvements |  |  |  | 16,757
Costs capitalized subsequent to acquisition |  |  |  | 20,936
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,239
Buildings and improvements |  |  |  | 35,537
Total | $ 41,776 |  |  | 41,776
Accumulated depreciation | $ (30,520) |  |  | (30,520)
Date of construction | 1975 |  |  |
Date acquired | Feb-91 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 41,776 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 30,520 |  |  |
Unencumbered Apartment Communities [Member] | Pathways at Bixby Village [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Pathways at Bixby Village [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Piedmont [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 396 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 19,848
Buildings and improvements |  |  |  | 59,606
Costs capitalized subsequent to acquisition |  |  |  | 11,970
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 19,848
Buildings and improvements |  |  |  | 71,576
Total | $ 91,424 |  |  | 91,424
Accumulated depreciation | $ (13,138) |  |  | (13,138)
Date of construction | 1969 |  |  |
Date acquired | May-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 91,424 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,138 |  |  |
Unencumbered Apartment Communities [Member] | Piedmont [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Piedmont [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Pinehurst [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 28 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 0
Buildings and improvements |  |  |  | 1,711
Costs capitalized subsequent to acquisition |  |  |  | 648
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 0
Buildings and improvements |  |  |  | 2,359
Total | $ 2,359 |  |  | 2,359
Accumulated depreciation | $ (1,359) |  |  | (1,359)
Date of construction | 1973 |  |  |
Date acquired | Dec-04 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 2,359 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 1,359 |  |  |
Unencumbered Apartment Communities [Member] | Pinehurst [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Pinehurst [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 24 years |  |  |
Unencumbered Apartment Communities [Member] | Pinnacle Sonata [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 268 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 14,647
Buildings and improvements |  |  |  | 58,586
Costs capitalized subsequent to acquisition |  |  |  | 3,398
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 14,647
Buildings and improvements |  |  |  | 61,984
Total | $ 76,631 |  |  | 76,631
Accumulated depreciation | $ (11,047) |  |  | (11,047)
Date of construction | 2000 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 76,631 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,047 |  |  |
Unencumbered Apartment Communities [Member] | Pinnacle Sonata [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Pinnacle Sonata [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Pointe at Cupertino [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 116 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,505
Buildings and improvements |  |  |  | 17,605
Costs capitalized subsequent to acquisition |  |  |  | 12,182
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,505
Buildings and improvements |  |  |  | 29,787
Total | $ 34,292 |  |  | 34,292
Accumulated depreciation | $ (17,583) |  |  | (17,583)
Date of construction | 1963 |  |  |
Date acquired | Aug-98 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 34,292 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,583 |  |  |
Unencumbered Apartment Communities [Member] | Pointe at Cupertino [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Pointe at Cupertino [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Radius [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 264 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 11,702
Buildings and improvements |  |  |  | 152,336
Costs capitalized subsequent to acquisition |  |  |  | 322
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 11,702
Buildings and improvements |  |  |  | 152,658
Total | $ 164,360 |  |  | 164,360
Accumulated depreciation | $ (27,287) |  |  | (27,287)
Date of construction | 2015 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 164,360 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 27,287 |  |  |
Unencumbered Apartment Communities [Member] | Radius [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Radius [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Reed Square [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 100 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,873
Buildings and improvements |  |  |  | 16,037
Costs capitalized subsequent to acquisition |  |  |  | 8,274
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,873
Buildings and improvements |  |  |  | 24,311
Total | $ 31,184 |  |  | 31,184
Accumulated depreciation | $ (8,840) |  |  | (8,840)
Date of construction | 1970 |  |  |
Date acquired | Jan-12 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 31,184 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,840 |  |  |
Unencumbered Apartment Communities [Member] | Reed Square [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Reed Square [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Regency at Encino [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 75 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,184
Buildings and improvements |  |  |  | 12,737
Costs capitalized subsequent to acquisition |  |  |  | 3,615
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,184
Buildings and improvements |  |  |  | 16,352
Total | $ 19,536 |  |  | 19,536
Accumulated depreciation | $ (6,157) |  |  | (6,157)
Date of construction | 1989 |  |  |
Date acquired | Dec-09 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 19,536 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 6,157 |  |  |
Unencumbered Apartment Communities [Member] | Regency at Encino [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Regency at Encino [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Renaissance at Uptown Orange [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 460 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 27,870
Buildings and improvements |  |  |  | 111,482
Costs capitalized subsequent to acquisition |  |  |  | 4,959
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 27,870
Buildings and improvements |  |  |  | 116,441
Total | $ 144,311 |  |  | 144,311
Accumulated depreciation | $ (20,912) |  |  | (20,912)
Date of construction | 2007 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 144,311 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 20,912 |  |  |
Unencumbered Apartment Communities [Member] | Renaissance at Uptown Orange [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Renaissance at Uptown Orange [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Reveal [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 438 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 25,073
Buildings and improvements |  |  |  | 121,314
Costs capitalized subsequent to acquisition |  |  |  | 1,462
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 25,073
Buildings and improvements |  |  |  | 122,776
Total | $ 147,849 |  |  | 147,849
Accumulated depreciation | $ (17,821) |  |  | (17,821)
Date of construction | 2010 |  |  |
Date acquired | Apr-15 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 147,849 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,821 |  |  |
Unencumbered Apartment Communities [Member] | The Reveal [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | The Reveal [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Salmon Run at Perry Creek [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 132 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,717
Buildings and improvements |  |  |  | 11,483
Costs capitalized subsequent to acquisition |  |  |  | 2,502
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,801
Buildings and improvements |  |  |  | 13,901
Total | $ 17,702 |  |  | 17,702
Accumulated depreciation | $ (8,211) |  |  | (8,211)
Date of construction | 2000 |  |  |
Date acquired | Oct-00 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,702 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,211 |  |  |
Unencumbered Apartment Communities [Member] | Salmon Run at Perry Creek [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Salmon Run at Perry Creek [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Sammamish View [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 153 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,324
Buildings and improvements |  |  |  | 7,501
Costs capitalized subsequent to acquisition |  |  |  | 7,056
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,331
Buildings and improvements |  |  |  | 14,550
Total | $ 17,881 |  |  | 17,881
Accumulated depreciation | $ (12,089) |  |  | (12,089)
Date of construction | 1986 |  |  |
Date acquired | Nov-94 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,881 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 12,089 |  |  |
Unencumbered Apartment Communities [Member] | Sammamish View [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Sammamish View [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | 101 San Fernando [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 323 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,173
Buildings and improvements |  |  |  | 58,961
Costs capitalized subsequent to acquisition |  |  |  | 11,773
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,173
Buildings and improvements |  |  |  | 70,734
Total | $ 74,907 |  |  | 74,907
Accumulated depreciation | $ (23,484) |  |  | (23,484)
Date of construction | 2001 |  |  |
Date acquired | Jul-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 74,907 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 23,484 |  |  |
Unencumbered Apartment Communities [Member] | 101 San Fernando [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | 101 San Fernando [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | San Marcos [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 432 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 15,563
Buildings and improvements |  |  |  | 36,204
Costs capitalized subsequent to acquisition |  |  |  | 32,572
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 22,866
Buildings and improvements |  |  |  | 61,473
Total | $ 84,339 |  |  | 84,339
Accumulated depreciation | $ (31,117) |  |  | (31,117)
Date of construction | 2003 |  |  |
Date acquired | Nov-03 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 84,339 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 31,117 |  |  |
Unencumbered Apartment Communities [Member] | San Marcos [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | San Marcos [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Santee Court/Santee Village [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 238 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 9,581
Buildings and improvements |  |  |  | 40,317
Costs capitalized subsequent to acquisition |  |  |  | 9,296
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 9,582
Buildings and improvements |  |  |  | 49,612
Total | $ 59,194 |  |  | 59,194
Accumulated depreciation | $ (14,575) |  |  | (14,575)
Date of construction | 2004 |  |  |
Date acquired | Oct-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 59,194 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 14,575 |  |  |
Unencumbered Apartment Communities [Member] | Santee Court/Santee Village [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Santee Court/Santee Village [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Shadow Point [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 172 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,812
Buildings and improvements |  |  |  | 11,170
Costs capitalized subsequent to acquisition |  |  |  | 3,802
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,820
Buildings and improvements |  |  |  | 14,964
Total | $ 17,784 |  |  | 17,784
Accumulated depreciation | $ (8,108) |  |  | (8,108)
Date of construction | 1983 |  |  |
Date acquired | Dec-02 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 17,784 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,108 |  |  |
Unencumbered Apartment Communities [Member] | Shadow Point [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Shadow Point [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Shadowbrook [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 418 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 19,292
Buildings and improvements |  |  |  | 77,168
Costs capitalized subsequent to acquisition |  |  |  | 5,001
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 19,292
Buildings and improvements |  |  |  | 82,169
Total | $ 101,461 |  |  | 101,461
Accumulated depreciation | $ (14,797) |  |  | (14,797)
Date of construction | 1986 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 101,461 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 14,797 |  |  |
Unencumbered Apartment Communities [Member] | Shadowbrook [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Shadowbrook [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Slater 116 [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 108 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 7,379
Buildings and improvements |  |  |  | 22,138
Costs capitalized subsequent to acquisition |  |  |  | 916
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 7,379
Buildings and improvements |  |  |  | 23,054
Total | $ 30,433 |  |  | 30,433
Accumulated depreciation | $ (4,293) |  |  | (4,293)
Date of construction | 2013 |  |  |
Date acquired | Sep-13 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 30,433 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 4,293 |  |  |
Unencumbered Apartment Communities [Member] | Slater 116 [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Slater 116 [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Solstice [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 280 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 34,444
Buildings and improvements |  |  |  | 147,262
Costs capitalized subsequent to acquisition |  |  |  | 5,603
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 34,444
Buildings and improvements |  |  |  | 152,865
Total | $ 187,309 |  |  | 187,309
Accumulated depreciation | $ (31,396) |  |  | (31,396)
Date of construction | 2014 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 187,309 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 31,396 |  |  |
Unencumbered Apartment Communities [Member] | Solstice [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Solstice [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Station Park Green - Phase I [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 121 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 14,923
Buildings and improvements |  |  |  | 82,552
Costs capitalized subsequent to acquisition |  |  |  | 553
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 14,924
Buildings and improvements |  |  |  | 83,104
Total | $ 98,028 |  |  | 98,028
Accumulated depreciation | $ (2,896) |  |  | (2,896)
Date of construction | 2018 |  |  |
Date acquired | Mar-18 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 98,028 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 2,896 |  |  |
Unencumbered Apartment Communities [Member] | Station Park Green - Phase I [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Station Park Green - Phase I [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Stonehedge Village [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 196 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,167
Buildings and improvements |  |  |  | 12,603
Costs capitalized subsequent to acquisition |  |  |  | 7,125
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,201
Buildings and improvements |  |  |  | 19,694
Total | $ 22,895 |  |  | 22,895
Accumulated depreciation | $ (13,784) |  |  | (13,784)
Date of construction | 1986 |  |  |
Date acquired | Oct-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 22,895 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,784 |  |  |
Unencumbered Apartment Communities [Member] | Stonehedge Village [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Stonehedge Village [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Summit Park [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 300 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,959
Buildings and improvements |  |  |  | 23,670
Costs capitalized subsequent to acquisition |  |  |  | 7,507
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,977
Buildings and improvements |  |  |  | 31,159
Total | $ 37,136 |  |  | 37,136
Accumulated depreciation | $ (16,895) |  |  | (16,895)
Date of construction | 1972 |  |  |
Date acquired | Dec-02 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 37,136 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 16,895 |  |  |
Unencumbered Apartment Communities [Member] | Summit Park [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Summit Park [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Taylor 28 [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 197 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 13,915
Buildings and improvements |  |  |  | 57,700
Costs capitalized subsequent to acquisition |  |  |  | 2,913
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 13,915
Buildings and improvements |  |  |  | 60,613
Total | $ 74,528 |  |  | 74,528
Accumulated depreciation | $ (10,586) |  |  | (10,586)
Date of construction | 2008 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 74,528 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,586 |  |  |
Unencumbered Apartment Communities [Member] | Taylor 28 [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Taylor 28 [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Avery [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 121 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,964
Buildings and improvements |  |  |  | 29,922
Costs capitalized subsequent to acquisition |  |  |  | 459
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,964
Buildings and improvements |  |  |  | 30,381
Total | $ 37,345 |  |  | 37,345
Accumulated depreciation | $ (4,867) |  |  | (4,867)
Date of construction | 2014 |  |  |
Date acquired | Mar-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 37,345 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 4,867 |  |  |
Unencumbered Apartment Communities [Member] | The Avery [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | The Avery [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Bernard [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 63 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,699
Buildings and improvements |  |  |  | 11,345
Costs capitalized subsequent to acquisition |  |  |  | 715
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,689
Buildings and improvements |  |  |  | 12,070
Total | $ 15,759 |  |  | 15,759
Accumulated depreciation | $ (3,068) |  |  | (3,068)
Date of construction | 2008 |  |  |
Date acquired | Sep-11 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 15,759 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 3,068 |  |  |
Unencumbered Apartment Communities [Member] | The Bernard [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | The Bernard [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Cairns [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 99 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,937
Buildings and improvements |  |  |  | 20,679
Costs capitalized subsequent to acquisition |  |  |  | 1,965
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,939
Buildings and improvements |  |  |  | 22,642
Total | $ 29,581 |  |  | 29,581
Accumulated depreciation | $ (8,970) |  |  | (8,970)
Date of construction | 2006 |  |  |
Date acquired | Jun-07 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 29,581 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,970 |  |  |
Unencumbered Apartment Communities [Member] | The Cairns [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | The Cairns [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Commons [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 264 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 12,555
Buildings and improvements |  |  |  | 29,307
Costs capitalized subsequent to acquisition |  |  |  | 8,468
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 12,556
Buildings and improvements |  |  |  | 37,774
Total | $ 50,330 |  |  | 50,330
Accumulated depreciation | $ (12,685) |  |  | (12,685)
Date of construction | 1973 |  |  |
Date acquired | Jul-10 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 50,330 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 12,685 |  |  |
Unencumbered Apartment Communities [Member] | The Commons [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | The Commons [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Elliot at Mukilteo [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 301 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,498
Buildings and improvements |  |  |  | 10,595
Costs capitalized subsequent to acquisition |  |  |  | 16,549
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,824
Buildings and improvements |  |  |  | 26,818
Total | $ 29,642 |  |  | 29,642
Accumulated depreciation | $ (19,937) |  |  | (19,937)
Date of construction | 1981 |  |  |
Date acquired | Jan-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 29,642 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 19,937 |  |  |
Unencumbered Apartment Communities [Member] | The Elliot at Mukilteo [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | The Elliot at Mukilteo [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Grand [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 243 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,531
Buildings and improvements |  |  |  | 89,208
Costs capitalized subsequent to acquisition |  |  |  | 7,131
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,531
Buildings and improvements |  |  |  | 96,339
Total | $ 100,870 |  |  | 100,870
Accumulated depreciation | $ (34,186) |  |  | (34,186)
Date of construction | 2009 |  |  |
Date acquired | Jan-09 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 100,870 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 34,186 |  |  |
Unencumbered Apartment Communities [Member] | The Grand [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | The Grand [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Hallie [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 292 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,202
Buildings and improvements |  |  |  | 4,794
Costs capitalized subsequent to acquisition |  |  |  | 54,029
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 8,385
Buildings and improvements |  |  |  | 52,640
Total | $ 61,025 |  |  | 61,025
Accumulated depreciation | $ (30,937) |  |  | (30,937)
Date of construction | 1972 |  |  |
Date acquired | Apr-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 61,025 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 30,937 |  |  |
Unencumbered Apartment Communities [Member] | The Hallie [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | The Hallie [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Lofts at Pinehurst [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 118 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 1,570
Buildings and improvements |  |  |  | 3,912
Costs capitalized subsequent to acquisition |  |  |  | 5,102
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 1,618
Buildings and improvements |  |  |  | 8,966
Total | $ 10,584 |  |  | 10,584
Accumulated depreciation | $ (5,728) |  |  | (5,728)
Date of construction | 1971 |  |  |
Date acquired | Jun-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,584 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 5,728 |  |  |
Unencumbered Apartment Communities [Member] | The Lofts at Pinehurst [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | The Lofts at Pinehurst [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Palisades [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 192 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 1,560
Buildings and improvements |  |  |  | 6,242
Costs capitalized subsequent to acquisition |  |  |  | 13,055
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 1,565
Buildings and improvements |  |  |  | 19,292
Total | $ 20,857 |  |  | 20,857
Accumulated depreciation | $ (16,842) |  |  | (16,842)
Date of construction | 1977 |  |  |
Date acquired | May-90 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 20,857 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 16,842 |  |  |
Unencumbered Apartment Communities [Member] | The Stuart [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 188 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 13,574
Buildings and improvements |  |  |  | 54,298
Costs capitalized subsequent to acquisition |  |  |  | 2,321
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 13,574
Buildings and improvements |  |  |  | 56,619
Total | $ 70,193 |  |  | 70,193
Accumulated depreciation | $ (10,547) |  |  | (10,547)
Date of construction | 2007 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 70,193 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 10,547 |  |  |
Unencumbered Apartment Communities [Member] | The Stuart [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | The Stuart [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | The Trails of Redmond [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 423 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 21,930
Buildings and improvements |  |  |  | 87,720
Costs capitalized subsequent to acquisition |  |  |  | 5,006
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 21,930
Buildings and improvements |  |  |  | 92,726
Total | $ 114,656 |  |  | 114,656
Accumulated depreciation | $ (16,701) |  |  | (16,701)
Date of construction | 1985 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 114,656 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 16,701 |  |  |
Unencumbered Apartment Communities [Member] | The Trails of Redmond [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | The Trails of Redmond [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Tierra Vista [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 404 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 13,652
Buildings and improvements |  |  |  | 53,336
Costs capitalized subsequent to acquisition |  |  |  | 5,415
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 13,661
Buildings and improvements |  |  |  | 58,742
Total | $ 72,403 |  |  | 72,403
Accumulated depreciation | $ (29,836) |  |  | (29,836)
Date of construction | 2001 |  |  |
Date acquired | Jan-01 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 72,403 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 29,836 |  |  |
Unencumbered Apartment Communities [Member] | Tierra Vista [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Tierra Vista [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Tiffany Court [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 101 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,949
Buildings and improvements |  |  |  | 27,796
Costs capitalized subsequent to acquisition |  |  |  | 1,687
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,949
Buildings and improvements |  |  |  | 29,483
Total | $ 36,432 |  |  | 36,432
Accumulated depreciation | $ (5,263) |  |  | (5,263)
Date of construction | 1987 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 36,432 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 5,263 |  |  |
Unencumbered Apartment Communities [Member] | Tiffany Court [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Tiffany Court [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Trabucco Villas [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 132 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 3,638
Buildings and improvements |  |  |  | 8,640
Costs capitalized subsequent to acquisition |  |  |  | 3,643
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 3,890
Buildings and improvements |  |  |  | 12,031
Total | $ 15,921 |  |  | 15,921
Accumulated depreciation | $ (8,134) |  |  | (8,134)
Date of construction | 1985 |  |  |
Date acquired | Oct-97 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 15,921 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 8,134 |  |  |
Unencumbered Apartment Communities [Member] | Trabucco Villas [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Trabucco Villas [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Via [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 284 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 22,000
Buildings and improvements |  |  |  | 82,270
Costs capitalized subsequent to acquisition |  |  |  | 2,908
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 22,016
Buildings and improvements |  |  |  | 85,162
Total | $ 107,178 |  |  | 107,178
Accumulated depreciation | $ (24,816) |  |  | (24,816)
Date of construction | 2011 |  |  |
Date acquired | Jul-11 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 107,178 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 24,816 |  |  |
Unencumbered Apartment Communities [Member] | Via [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Via [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Villa Siena [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 272 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 13,842
Buildings and improvements |  |  |  | 55,367
Costs capitalized subsequent to acquisition |  |  |  | 7,249
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 13,842
Buildings and improvements |  |  |  | 62,616
Total | $ 76,458 |  |  | 76,458
Accumulated depreciation | $ (11,592) |  |  | (11,592)
Date of construction | 1974 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 76,458 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,592 |  |  |
Unencumbered Apartment Communities [Member] | Villa Siena [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Villa Siena [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Village Green [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 272 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 6,488
Buildings and improvements |  |  |  | 36,768
Costs capitalized subsequent to acquisition |  |  |  | 3,826
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 6,488
Buildings and improvements |  |  |  | 40,594
Total | $ 47,082 |  |  | 47,082
Accumulated depreciation | $ (7,652) |  |  | (7,652)
Date of construction | 1971 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 47,082 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 7,652 |  |  |
Unencumbered Apartment Communities [Member] | Village Green [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Village Green [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Vista Belvedere [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 76 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,573
Buildings and improvements |  |  |  | 11,901
Costs capitalized subsequent to acquisition |  |  |  | 8,708
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,573
Buildings and improvements |  |  |  | 20,609
Total | $ 26,182 |  |  | 26,182
Accumulated depreciation | $ (11,033) |  |  | (11,033)
Date of construction | 1963 |  |  |
Date acquired | Aug-04 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 26,182 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 11,033 |  |  |
Unencumbered Apartment Communities [Member] | Vista Belvedere [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Vista Belvedere [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Vox Apartments [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 58 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,545
Buildings and improvements |  |  |  | 16,635
Costs capitalized subsequent to acquisition |  |  |  | 271
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,545
Buildings and improvements |  |  |  | 16,906
Total | $ 22,451 |  |  | 22,451
Accumulated depreciation | $ (2,936) |  |  | (2,936)
Date of construction | 2013 |  |  |
Date acquired | Oct-13 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 22,451 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 2,936 |  |  |
Unencumbered Apartment Communities [Member] | Vox Apartments [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Vox Apartments [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Walnut Heights [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 163 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,858
Buildings and improvements |  |  |  | 19,168
Costs capitalized subsequent to acquisition |  |  |  | 5,383
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,887
Buildings and improvements |  |  |  | 24,522
Total | $ 29,409 |  |  | 29,409
Accumulated depreciation | $ (12,592) |  |  | (12,592)
Date of construction | 1964 |  |  |
Date acquired | Oct-03 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 29,409 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 12,592 |  |  |
Unencumbered Apartment Communities [Member] | Walnut Heights [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Walnut Heights [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Wharfside Pointe [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 155 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,245
Buildings and improvements |  |  |  | 7,020
Costs capitalized subsequent to acquisition |  |  |  | 12,046
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,258
Buildings and improvements |  |  |  | 19,053
Total | $ 21,311 |  |  | 21,311
Accumulated depreciation | $ (13,796) |  |  | (13,796)
Date of construction | 1990 |  |  |
Date acquired | Jun-94 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 21,311 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 13,796 |  |  |
Unencumbered Apartment Communities [Member] | Wharfside Pointe [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Wharfside Pointe [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Willow Lake [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 508 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 43,194
Buildings and improvements |  |  |  | 101,030
Costs capitalized subsequent to acquisition |  |  |  | 14,040
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 43,194
Buildings and improvements |  |  |  | 115,070
Total | $ 158,264 |  |  | 158,264
Accumulated depreciation | $ (27,006) |  |  | (27,006)
Date of construction | 1989 |  |  |
Date acquired | Oct-12 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 158,264 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 27,006 |  |  |
Unencumbered Apartment Communities [Member] | Willow Lake [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Willow Lake [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | 5600 Wilshire [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 284 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 30,535
Buildings and improvements |  |  |  | 91,604
Costs capitalized subsequent to acquisition |  |  |  | 2,258
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 30,535
Buildings and improvements |  |  |  | 93,862
Total | $ 124,397 |  |  | 124,397
Accumulated depreciation | $ (16,636) |  |  | (16,636)
Date of construction | 2008 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 124,397 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 16,636 |  |  |
Unencumbered Apartment Communities [Member] | 5600 Wilshire [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | 5600 Wilshire [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Wilshire La Brea [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 478 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 56,932
Buildings and improvements |  |  |  | 211,998
Costs capitalized subsequent to acquisition |  |  |  | 10,929
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 56,932
Buildings and improvements |  |  |  | 222,927
Total | $ 279,859 |  |  | 279,859
Accumulated depreciation | $ (44,801) |  |  | (44,801)
Date of construction | 2014 |  |  |
Date acquired | Apr-14 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 279,859 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 44,801 |  |  |
Unencumbered Apartment Communities [Member] | Wilshire La Brea [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 5 years |  |  |
Unencumbered Apartment Communities [Member] | Wilshire La Brea [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Windsor Ridge [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 216 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 4,017
Buildings and improvements |  |  |  | 10,315
Costs capitalized subsequent to acquisition |  |  |  | 16,659
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,021
Buildings and improvements |  |  |  | 26,970
Total | $ 30,991 |  |  | 30,991
Accumulated depreciation | $ (21,175) |  |  | (21,175)
Date of construction | 1989 |  |  |
Date acquired | Mar-89 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 30,991 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 21,175 |  |  |
Unencumbered Apartment Communities [Member] | Windsor Ridge [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Windsor Ridge [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Woodland Commons [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 302 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 2,040
Buildings and improvements |  |  |  | 8,727
Costs capitalized subsequent to acquisition |  |  |  | 23,306
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 2,044
Buildings and improvements |  |  |  | 32,029
Total | $ 34,073 |  |  | 34,073
Accumulated depreciation | $ (20,855) |  |  | (20,855)
Date of construction | 1978 |  |  |
Date acquired | Mar-90 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 34,073 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 20,855 |  |  |
Unencumbered Apartment Communities [Member] | Woodland Commons [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Woodland Commons [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Unencumbered Apartment Communities [Member] | Woodside Village [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Units | apartment | 145 |  |  |
Initial cost [Abstract] |  |  |  |
Land |  |  |  | 5,331
Buildings and improvements |  |  |  | 21,036
Costs capitalized subsequent to acquisition |  |  |  | 4,179
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 5,341
Buildings and improvements |  |  |  | 25,205
Total | $ 30,546 |  |  | 30,546
Accumulated depreciation | $ (12,674) |  |  | $ (12,674)
Date of construction | 1987 |  |  |
Date acquired | Dec-04 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 30,546 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 12,674 |  |  |
Unencumbered Apartment Communities [Member] | Woodside Village [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Unencumbered Apartment Communities [Member] | Woodside Village [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Other Property [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Area of real estate property | ft² |  |  |  | 106,716
Initial cost [Abstract] |  |  |  |
Land |  |  |  | $ 3,079
Buildings and improvements |  |  |  | 12,315
Costs capitalized subsequent to acquisition |  |  |  | 9,908
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,308
Buildings and improvements |  |  |  | 20,994
Total | $ 25,302 |  |  | 25,302
Accumulated depreciation | (14,119) |  |  | $ (14,119)
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | 25,302 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | 14,119 |  |  |
Other Property [Member] | Derian Office Building [Member] |  |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Area of real estate property | ft² |  |  |  | 106,716
Initial cost [Abstract] |  |  |  |
Land |  |  |  | $ 3,079
Buildings and improvements |  |  |  | 12,315
Costs capitalized subsequent to acquisition |  |  |  | 9,908
Gross amount carried at close of period [Abstract] |  |  |  |
Land and improvements |  |  |  | 4,308
Buildings and improvements |  |  |  | 20,994
Total | 25,302 |  |  | 25,302
Accumulated depreciation | $ (14,119) |  |  | (14,119)
Date of construction | 1983 |  |  |
Date acquired | Jul-00 |  |  |
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at the end of year | $ 25,302 |  |  |
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Balance at the end of year | $ 14,119 |  |  |
Other Property [Member] | Derian Office Building [Member] | Minimum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 3 years |  |  |
Other Property [Member] | Derian Office Building [Member] | Maximum [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Life Used for Depreciation | 30 years |  |  |
Real Estate, Rental Property [Member] |  |  |  |
Gross amount carried at close of period [Abstract] |  |  |  |
Total | $ 13,362,073 | 12,687,722 | 12,338,129 | $ 13,366,101
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Balance at beginning of year | 13,362,073 | 12,687,722 | 12,338,129 |
Balance at the end of year | $ 13,366,101 | $ 13,362,073 | $ 12,687,722 |

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- Definition Initial cost of buildings and improvements for entities with a substantial portion of business acquiring and holding investment real estate. Excludes real estate not held as an investment or interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Column C)) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 + Details
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- Definition Initial cost of land for entities with a substantial portion of business acquiring and holding investment real estate. Excludes real estate not held as an investment or interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Column C)) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 + Details
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- Definition Useful life on which depreciation was computed for entities with a substantial portion of business acquiring and holding investment real estate, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Column I)) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 + Details
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- Definition Amount, before accumulated depreciation, of real estate investment by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. Excludes real estate not held as investment or interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Column E)) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 + Details
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