SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) apartment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2019 USD ($) ft²	Mar. 31, 2019 USD ($)
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance				$ 990,667
Initial cost
Land				2,736,256
Buildings and improvements				9,395,624
Costs capitalized subsequent to acquisition				1,906,262
Gross amount carried at close of period
Land and improvements				2,773,805
Buildings and improvements				11,264,337
Total	$ 14,038,142			14,038,142
Accumulated depreciation	(3,209,548)	$ (2,769,297)	$ (2,769,297)	(3,689,482)
Aggregate cost for federal income tax purpose	11,000,000
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Acquisition, development, and improvement of real estate	672,041	325,986	700,892
Disposition of real estate and other	0	(321,958)	(28,367)
Reclassification from other assets and into building and improvements, net	0	0	1,826
Balance at the end of year	14,038,142
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at beginning of year	(3,209,548)	(2,769,297)	(2,311,546)
Depreciation expense	479,934	478,721	464,043
Depreciation expense - Disposals and other	0	(38,470)	(6,292)
Balance at the end of year	(3,689,482)	(3,209,548)	(2,769,297)
Hidden Valley
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance				29,700
Gross amount carried at close of period
Total	97,000			97,000
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 97,000
One South Market
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance					$ 86,000
Gross amount carried at close of period
Total					$ 179,000
Encumbered Apartment Communities
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	5,966
Encumbrance				990,667
Initial cost
Land				318,097
Buildings and improvements				1,126,510
Costs capitalized subsequent to acquisition				250,268
Gross amount carried at close of period
Land and improvements				326,263
Buildings and improvements				1,368,612
Total	$ 1,694,875			1,694,875
Accumulated depreciation	(456,922)			(456,922)
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	1,694,875
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (456,922)
Encumbered Apartment Communities | Belmont Station
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	275
Encumbrance				29,703
Initial cost
Land				8,100
Buildings and improvements				66,666
Costs capitalized subsequent to acquisition				6,642
Gross amount carried at close of period
Land and improvements				8,267
Buildings and improvements				73,141
Total	$ 81,408			81,408
Accumulated depreciation	$ (31,302)			(31,302)
Date of construction	2009
Date acquired	Mar-09
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 81,408
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (31,302)
Encumbered Apartment Communities | Belmont Station | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Belmont Station | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Brio
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	300
Encumbrance				101,540
Initial cost
Land				16,885
Buildings and improvements				151,741
Costs capitalized subsequent to acquisition				704
Gross amount carried at close of period
Land and improvements				16,885
Buildings and improvements				152,445
Total	$ 169,330			169,330
Accumulated depreciation	$ (2,972)			(2,972)
Date of construction	2015
Date acquired	Jun-19
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 169,330
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (2,972)
Encumbered Apartment Communities | Brio | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Brio | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Brookside Oaks
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	170
Encumbrance				17,318
Initial cost
Land				7,301
Buildings and improvements				16,310
Costs capitalized subsequent to acquisition				27,158
Gross amount carried at close of period
Land and improvements				10,328
Buildings and improvements				40,441
Total	$ 50,769			50,769
Accumulated depreciation	$ (24,680)			(24,680)
Date of construction	1973
Date acquired	Jun-00
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 50,769
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (24,680)
Encumbered Apartment Communities | Brookside Oaks | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Brookside Oaks | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | City View
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	572
Encumbrance				60,841
Initial cost
Land				9,883
Buildings and improvements				37,670
Costs capitalized subsequent to acquisition				31,487
Gross amount carried at close of period
Land and improvements				10,350
Buildings and improvements				68,690
Total	$ 79,040			79,040
Accumulated depreciation	$ (50,256)			(50,256)
Date of construction	1975
Date acquired	Mar-98
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 79,040
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (50,256)
Encumbered Apartment Communities | City View | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | City View | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Domaine
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	92
Encumbrance				12,845
Initial cost
Land				9,059
Buildings and improvements				27,177
Costs capitalized subsequent to acquisition				1,296
Gross amount carried at close of period
Land and improvements				9,059
Buildings and improvements				28,473
Total	$ 37,532			37,532
Accumulated depreciation	$ (7,309)			(7,309)
Date of construction	2009
Date acquired	Sep-12
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 37,532
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (7,309)
Encumbered Apartment Communities | Domaine | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Domaine | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Fairhaven Apartments
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	164
Encumbrance				17,602
Initial cost
Land				2,626
Buildings and improvements				10,485
Costs capitalized subsequent to acquisition				9,757
Gross amount carried at close of period
Land and improvements				2,957
Buildings and improvements				19,911
Total	$ 22,868			22,868
Accumulated depreciation	$ (12,157)			(12,157)
Date of construction	1970
Date acquired	Nov-01
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 22,868
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,157)
Encumbered Apartment Communities | Fairhaven Apartments | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Fairhaven Apartments | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Form 15
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	242
Encumbrance				43,616
Initial cost
Land				24,510
Buildings and improvements				72,221
Costs capitalized subsequent to acquisition				8,167
Gross amount carried at close of period
Land and improvements				25,540
Buildings and improvements				79,358
Total	$ 104,898			104,898
Accumulated depreciation	$ (10,490)			(10,490)
Date of construction	2014
Date acquired	Mar-16
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 104,898
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,490)
Encumbered Apartment Communities | Form 15 | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Form 15 | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Fountain Park
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	705
Encumbrance				82,639
Initial cost
Land				25,073
Buildings and improvements				94,980
Costs capitalized subsequent to acquisition				34,339
Gross amount carried at close of period
Land and improvements				25,203
Buildings and improvements				129,189
Total	$ 154,392			154,392
Accumulated depreciation	$ (74,993)			(74,993)
Date of construction	2002
Date acquired	Feb-04
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 154,392
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (74,993)
Encumbered Apartment Communities | Fountain Park | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Fountain Park | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Hidden Valley
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	324
Encumbrance				29,392
Initial cost
Land				14,174
Buildings and improvements				34,065
Costs capitalized subsequent to acquisition				7,501
Gross amount carried at close of period
Land and improvements				9,674
Buildings and improvements				46,066
Total	$ 55,740			55,740
Accumulated depreciation	$ (22,843)			(22,843)
Date of construction	2004
Date acquired	Dec-04
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 55,740
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (22,843)
Encumbered Apartment Communities | Hidden Valley | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Hidden Valley | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Highridge
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	255
Encumbrance				69,309
Initial cost
Land				5,419
Buildings and improvements				18,347
Costs capitalized subsequent to acquisition				32,286
Gross amount carried at close of period
Land and improvements				6,073
Buildings and improvements				49,979
Total	$ 56,052			56,052
Accumulated depreciation	$ (39,463)			(39,463)
Date of construction	1972
Date acquired	May-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 56,052
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (39,463)
Encumbered Apartment Communities | Highridge | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Highridge | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | 1000 Kiely
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	121
Encumbrance				33,260
Initial cost
Land				9,359
Buildings and improvements				21,845
Costs capitalized subsequent to acquisition				8,294
Gross amount carried at close of period
Land and improvements				9,359
Buildings and improvements				30,139
Total	$ 39,498			39,498
Accumulated depreciation	$ (12,313)			(12,313)
Date of construction	1971
Date acquired	Mar-11
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 39,498
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,313)
Encumbered Apartment Communities | 1000 Kiely | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | 1000 Kiely | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Magnolia Square/Magnolia Lane
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	188
Encumbrance				52,270
Initial cost
Land				8,190
Buildings and improvements				24,736
Costs capitalized subsequent to acquisition				18,388
Gross amount carried at close of period
Land and improvements				8,191
Buildings and improvements				43,123
Total	$ 51,314			51,314
Accumulated depreciation	$ (23,557)			(23,557)
Date of construction	1963
Date acquired	Sep-07
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 51,314
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (23,557)
Encumbered Apartment Communities | Magnolia Square/Magnolia Lane | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Magnolia Square/Magnolia Lane | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Marquis
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	166
Encumbrance				43,772
Initial cost
Land				20,495
Buildings and improvements				47,823
Costs capitalized subsequent to acquisition				46
Gross amount carried at close of period
Land and improvements				20,495
Buildings and improvements				47,869
Total	$ 68,364			68,364
Accumulated depreciation	$ (1,664)			(1,664)
Date of construction	2015
Date acquired	Dec-18
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 68,364
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (1,664)
Encumbered Apartment Communities | Marquis | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Marquis | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Montarosa
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	472
Encumbrance				59,723
Initial cost
Land				26,697
Buildings and improvements				106,787
Costs capitalized subsequent to acquisition				6,299
Gross amount carried at close of period
Land and improvements				26,697
Buildings and improvements				113,086
Total	$ 139,783			139,783
Accumulated depreciation	$ (24,590)			(24,590)
Date of construction	1990
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 139,783
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (24,590)
Encumbered Apartment Communities | Montarosa | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Encumbered Apartment Communities | Montarosa | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Montebello
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	248
Encumbrance				23,682
Initial cost
Land				13,857
Buildings and improvements				41,575
Costs capitalized subsequent to acquisition				5,542
Gross amount carried at close of period
Land and improvements				13,858
Buildings and improvements				47,116
Total	$ 60,974			60,974
Accumulated depreciation	$ (13,781)			(13,781)
Date of construction	1996
Date acquired	Jul-12
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 60,974
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,781)
Encumbered Apartment Communities | Montebello | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Montebello | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Montejo Apartments
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	124
Encumbrance				12,536
Initial cost
Land				1,925
Buildings and improvements				7,685
Costs capitalized subsequent to acquisition				4,365
Gross amount carried at close of period
Land and improvements				2,194
Buildings and improvements				11,781
Total	$ 13,975			13,975
Accumulated depreciation	$ (7,013)			(7,013)
Date of construction	1974
Date acquired	Nov-01
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 13,975
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (7,013)
Encumbered Apartment Communities | Montejo Apartments | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Montejo Apartments | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Sage at Cupertino
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	230
Encumbrance				51,724
Initial cost
Land				35,719
Buildings and improvements				53,449
Costs capitalized subsequent to acquisition				6,442
Gross amount carried at close of period
Land and improvements				35,719
Buildings and improvements				59,891
Total	$ 95,610			95,610
Accumulated depreciation	$ (6,349)			(6,349)
Date of construction	1971
Date acquired	Mar-17
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 95,610
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (6,349)
Encumbered Apartment Communities | Sage at Cupertino | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Sage at Cupertino | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | The Barkley
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	161
Encumbrance				14,857
Initial cost
Land				0
Buildings and improvements				8,520
Costs capitalized subsequent to acquisition				7,440
Gross amount carried at close of period
Land and improvements				2,353
Buildings and improvements				13,607
Total	$ 15,960			15,960
Accumulated depreciation	$ (9,240)			(9,240)
Date of construction	1984
Date acquired	Apr-00
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 15,960
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (9,240)
Encumbered Apartment Communities | The Barkley | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | The Barkley | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | The Dylan
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	184
Encumbrance				58,854
Initial cost
Land				19,984
Buildings and improvements				82,286
Costs capitalized subsequent to acquisition				1,202
Gross amount carried at close of period
Land and improvements				19,990
Buildings and improvements				83,482
Total	$ 103,472			103,472
Accumulated depreciation	$ (15,578)			(15,578)
Date of construction	2015
Date acquired	Mar-15
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 103,472
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (15,578)
Encumbered Apartment Communities | The Dylan | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | The Dylan | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | The Huxley
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	187
Encumbrance				53,589
Initial cost
Land				19,362
Buildings and improvements				75,641
Costs capitalized subsequent to acquisition				1,385
Gross amount carried at close of period
Land and improvements				19,371
Buildings and improvements				77,017
Total	$ 96,388			96,388
Accumulated depreciation	$ (14,609)			(14,609)
Date of construction	2014
Date acquired	Mar-15
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 96,388
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,609)
Encumbered Apartment Communities | The Huxley | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | The Huxley | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | The Waterford
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	238
Encumbrance				28,713
Initial cost
Land				11,808
Buildings and improvements				24,500
Costs capitalized subsequent to acquisition				17,347
Gross amount carried at close of period
Land and improvements				15,165
Buildings and improvements				38,490
Total	$ 53,655			53,655
Accumulated depreciation	$ (23,732)			(23,732)
Date of construction	2000
Date acquired	Jun-00
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 53,655
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (23,732)
Encumbered Apartment Communities | The Waterford | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | The Waterford | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Township
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	132
Encumbrance				46,087
Initial cost
Land				19,812
Buildings and improvements				70,619
Costs capitalized subsequent to acquisition				251
Gross amount carried at close of period
Land and improvements				19,812
Buildings and improvements				70,870
Total	$ 90,682			90,682
Accumulated depreciation	$ (713)			(713)
Date of construction	2014
Date acquired	Sep-19
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 90,682
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (713)
Encumbered Apartment Communities | Township | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Township | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Valley Park
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	160
Encumbrance				20,327
Initial cost
Land				3,361
Buildings and improvements				13,420
Costs capitalized subsequent to acquisition				6,186
Gross amount carried at close of period
Land and improvements				3,761
Buildings and improvements				19,206
Total	$ 22,967			22,967
Accumulated depreciation	$ (11,634)			(11,634)
Date of construction	1969
Date acquired	Nov-01
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 22,967
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (11,634)
Encumbered Apartment Communities | Valley Park | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Valley Park | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Villa Angelina
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	256
Encumbrance				26,468
Initial cost
Land				4,498
Buildings and improvements				17,962
Costs capitalized subsequent to acquisition				7,744
Gross amount carried at close of period
Land and improvements				4,962
Buildings and improvements				25,242
Total	$ 30,204			30,204
Accumulated depreciation	$ (15,684)			(15,684)
Date of construction	1970
Date acquired	Nov-01
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 30,204
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (15,684)
Encumbered Apartment Communities | Villa Angelina | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Encumbered Apartment Communities | Villa Angelina | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Encumbered Apartment Communities | Foster's Landing | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Encumbered Apartment Communities | Foster's Landing | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	43,932
Initial cost
Land				2,415,080
Buildings and improvements				8,256,799
Costs capitalized subsequent to acquisition				1,643,811
Gross amount carried at close of period
Land and improvements				2,443,633
Buildings and improvements				9,872,057
Total	$ 12,315,690			12,315,690
Accumulated depreciation	(3,217,204)			(3,217,204)
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	12,315,690
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (3,217,204)
Unencumbered Apartment Communities | Alessio
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	624
Initial cost
Land				32,136
Buildings and improvements				128,543
Costs capitalized subsequent to acquisition				12,865
Gross amount carried at close of period
Land and improvements				32,136
Buildings and improvements				141,408
Total	$ 173,544			173,544
Accumulated depreciation	$ (31,530)			(31,530)
Date of construction	2001
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 173,544
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (31,530)
Unencumbered Apartment Communities | Alessio | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Alessio | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Allegro
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	97
Initial cost
Land				5,869
Buildings and improvements				23,977
Costs capitalized subsequent to acquisition				2,530
Gross amount carried at close of period
Land and improvements				5,869
Buildings and improvements				26,507
Total	$ 32,376			32,376
Accumulated depreciation	$ (10,365)			(10,365)
Date of construction	2010
Date acquired	Oct-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 32,376
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,365)
Unencumbered Apartment Communities | Allegro | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Allegro | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Allure at Scripps Ranch
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	194
Initial cost
Land				11,923
Buildings and improvements				47,690
Costs capitalized subsequent to acquisition				1,653
Gross amount carried at close of period
Land and improvements				11,923
Buildings and improvements				49,343
Total	$ 61,266			61,266
Accumulated depreciation	$ (10,557)			(10,557)
Date of construction	2002
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 61,266
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,557)
Unencumbered Apartment Communities | Allure at Scripps Ranch | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Allure at Scripps Ranch | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Alpine Village
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	301
Initial cost
Land				4,967
Buildings and improvements				19,728
Costs capitalized subsequent to acquisition				9,094
Gross amount carried at close of period
Land and improvements				4,982
Buildings and improvements				28,807
Total	$ 33,789			33,789
Accumulated depreciation	$ (16,958)			(16,958)
Date of construction	1971
Date acquired	Dec-02
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 33,789
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (16,958)
Unencumbered Apartment Communities | Alpine Village | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Alpine Village | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Anavia
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	250
Initial cost
Land				15,925
Buildings and improvements				63,712
Costs capitalized subsequent to acquisition				8,796
Gross amount carried at close of period
Land and improvements				15,925
Buildings and improvements				72,508
Total	$ 88,433			88,433
Accumulated depreciation	$ (22,599)			(22,599)
Date of construction	2009
Date acquired	Dec-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 88,433
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (22,599)
Unencumbered Apartment Communities | Anavia | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Anavia | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Annaliese
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	56
Initial cost
Land				4,727
Buildings and improvements				14,229
Costs capitalized subsequent to acquisition				701
Gross amount carried at close of period
Land and improvements				4,726
Buildings and improvements				14,931
Total	$ 19,657			19,657
Accumulated depreciation	$ (3,613)			(3,613)
Date of construction	2009
Date acquired	Jan-13
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 19,657
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (3,613)
Unencumbered Apartment Communities | Annaliese | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Annaliese | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Apex
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	366
Initial cost
Land				44,240
Buildings and improvements				103,251
Costs capitalized subsequent to acquisition				3,857
Gross amount carried at close of period
Land and improvements				44,240
Buildings and improvements				107,108
Total	$ 151,348			151,348
Accumulated depreciation	$ (19,343)			(19,343)
Date of construction	2014
Date acquired	Aug-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 151,348
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (19,343)
Unencumbered Apartment Communities | Apex | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Apex | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Aqua at Marina Del Rey
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	500
Initial cost
Land				58,442
Buildings and improvements				175,326
Costs capitalized subsequent to acquisition				14,430
Gross amount carried at close of period
Land and improvements				58,442
Buildings and improvements				189,756
Total	$ 248,198			248,198
Accumulated depreciation	$ (44,329)			(44,329)
Date of construction	2001
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 248,198
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (44,329)
Unencumbered Apartment Communities | Aqua at Marina Del Rey | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Aqua at Marina Del Rey | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Ascent
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	90
Initial cost
Land				3,924
Buildings and improvements				11,862
Costs capitalized subsequent to acquisition				2,172
Gross amount carried at close of period
Land and improvements				3,924
Buildings and improvements				14,034
Total	$ 17,958			17,958
Accumulated depreciation	$ (4,169)			(4,169)
Date of construction	1988
Date acquired	Oct-12
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 17,958
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (4,169)
Unencumbered Apartment Communities | Ascent | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Ascent | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Ashton Sherman Village
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	264
Initial cost
Land				23,550
Buildings and improvements				93,811
Costs capitalized subsequent to acquisition				976
Gross amount carried at close of period
Land and improvements				23,550
Buildings and improvements				94,787
Total	$ 118,337			118,337
Accumulated depreciation	$ (10,157)			(10,157)
Date of construction	2014
Date acquired	Dec-16
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 118,337
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,157)
Unencumbered Apartment Communities | Ashton Sherman Village | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Ashton Sherman Village | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Avant
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	440
Initial cost
Land				32,379
Buildings and improvements				137,940
Costs capitalized subsequent to acquisition				3,203
Gross amount carried at close of period
Land and improvements				32,379
Buildings and improvements				141,143
Total	$ 173,522			173,522
Accumulated depreciation	$ (21,614)			(21,614)
Date of construction	2014
Date acquired	Jun-15
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 173,522
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (21,614)
Unencumbered Apartment Communities | Avant | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Avant | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Avenue 64
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	224
Initial cost
Land				27,235
Buildings and improvements				64,403
Costs capitalized subsequent to acquisition				14,656
Gross amount carried at close of period
Land and improvements				27,235
Buildings and improvements				79,059
Total	$ 106,294			106,294
Accumulated depreciation	$ (15,897)			(15,897)
Date of construction	2007
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 106,294
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (15,897)
Unencumbered Apartment Communities | Avenue 64 | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Avenue 64 | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Aviara
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	166
Initial cost
Land				0
Buildings and improvements				49,813
Costs capitalized subsequent to acquisition				1,412
Gross amount carried at close of period
Land and improvements				0
Buildings and improvements				51,225
Total	$ 51,225			51,225
Accumulated depreciation	$ (11,908)			(11,908)
Date of construction	2013
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 51,225
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (11,908)
Unencumbered Apartment Communities | Aviara | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Aviara | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Avondale at Warner Center
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	446
Initial cost
Land				10,536
Buildings and improvements				24,522
Costs capitalized subsequent to acquisition				24,703
Gross amount carried at close of period
Land and improvements				10,601
Buildings and improvements				49,160
Total	$ 59,761			59,761
Accumulated depreciation	$ (34,453)			(34,453)
Date of construction	1970
Date acquired	Jan-99
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 59,761
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (34,453)
Unencumbered Apartment Communities | Avondale at Warner Center | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Avondale at Warner Center | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Axis 2300
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	115
Initial cost
Land				5,405
Buildings and improvements				33,585
Costs capitalized subsequent to acquisition				1,963
Gross amount carried at close of period
Land and improvements				5,405
Buildings and improvements				35,548
Total	$ 40,953			40,953
Accumulated depreciation	$ (13,576)			(13,576)
Date of construction	2010
Date acquired	Aug-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 40,953
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,576)
Unencumbered Apartment Communities | Axis 2300 | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Axis 2300 | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Bel Air
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	462
Initial cost
Land				12,105
Buildings and improvements				18,252
Costs capitalized subsequent to acquisition				40,856
Gross amount carried at close of period
Land and improvements				12,682
Buildings and improvements				58,531
Total	$ 71,213			71,213
Accumulated depreciation	$ (40,414)			(40,414)
Date of construction	1988
Date acquired	Jan-95
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 71,213
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (40,414)
Unencumbered Apartment Communities | Bel Air | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Bel Air | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Belcarra
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	296
Initial cost
Land				21,725
Buildings and improvements				92,091
Costs capitalized subsequent to acquisition				2,283
Gross amount carried at close of period
Land and improvements				21,725
Buildings and improvements				94,374
Total	$ 116,099			116,099
Accumulated depreciation	$ (19,774)			(19,774)
Date of construction	2009
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 116,099
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (19,774)
Unencumbered Apartment Communities | Belcarra | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Belcarra | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Bella Villagio
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	231
Initial cost
Land				17,247
Buildings and improvements				40,343
Costs capitalized subsequent to acquisition				4,001
Gross amount carried at close of period
Land and improvements				17,247
Buildings and improvements				44,344
Total	$ 61,591			61,591
Accumulated depreciation	$ (14,888)			(14,888)
Date of construction	2004
Date acquired	Sep-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 61,591
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,888)
Unencumbered Apartment Communities | Bella Villagio | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Bella Villagio | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | BellCentre
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	248
Initial cost
Land				16,197
Buildings and improvements				67,207
Costs capitalized subsequent to acquisition				5,041
Gross amount carried at close of period
Land and improvements				16,197
Buildings and improvements				72,248
Total	$ 88,445			88,445
Accumulated depreciation	$ (15,892)			(15,892)
Date of construction	2001
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 88,445
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (15,892)
Unencumbered Apartment Communities | BellCentre | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | BellCentre | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Bellerive
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	63
Initial cost
Land				5,401
Buildings and improvements				21,803
Costs capitalized subsequent to acquisition				1,312
Gross amount carried at close of period
Land and improvements				5,401
Buildings and improvements				23,115
Total	$ 28,516			28,516
Accumulated depreciation	$ (7,768)			(7,768)
Date of construction	2011
Date acquired	Aug-11
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 28,516
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (7,768)
Unencumbered Apartment Communities | Bellerive | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Bellerive | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Belmont Terrace
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	71
Initial cost
Land				4,446
Buildings and improvements				10,290
Costs capitalized subsequent to acquisition				7,294
Gross amount carried at close of period
Land and improvements				4,473
Buildings and improvements				17,557
Total	$ 22,030			22,030
Accumulated depreciation	$ (9,414)			(9,414)
Date of construction	1974
Date acquired	Oct-06
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 22,030
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (9,414)
Unencumbered Apartment Communities | Belmont Terrace | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Belmont Terrace | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Bennett Lofts
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	165
Initial cost
Land				21,771
Buildings and improvements				50,800
Costs capitalized subsequent to acquisition				30,544
Gross amount carried at close of period
Land and improvements				28,371
Buildings and improvements				74,744
Total	$ 103,115			103,115
Accumulated depreciation	$ (19,437)			(19,437)
Date of construction	2004
Date acquired	Dec-12
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 103,115
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (19,437)
Unencumbered Apartment Communities | Bennett Lofts | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Bennett Lofts | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Bernardo Crest
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	216
Initial cost
Land				10,802
Buildings and improvements				43,209
Costs capitalized subsequent to acquisition				4,737
Gross amount carried at close of period
Land and improvements				10,802
Buildings and improvements				47,946
Total	$ 58,748			58,748
Accumulated depreciation	$ (10,574)			(10,574)
Date of construction	1988
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 58,748
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,574)
Unencumbered Apartment Communities | Bernardo Crest | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Bernardo Crest | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Bonita Cedars
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	120
Initial cost
Land				2,496
Buildings and improvements				9,913
Costs capitalized subsequent to acquisition				5,583
Gross amount carried at close of period
Land and improvements				2,503
Buildings and improvements				15,489
Total	$ 17,992			17,992
Accumulated depreciation	$ (8,551)			(8,551)
Date of construction	1983
Date acquired	Dec-02
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 17,992
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (8,551)
Unencumbered Apartment Communities | Bonita Cedars | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Bonita Cedars | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Boulevard
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	172
Initial cost
Land				3,520
Buildings and improvements				8,182
Costs capitalized subsequent to acquisition				14,248
Gross amount carried at close of period
Land and improvements				3,580
Buildings and improvements				22,370
Total	$ 25,950			25,950
Accumulated depreciation	$ (17,944)			(17,944)
Date of construction	1978
Date acquired	Jan-96
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 25,950
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (17,944)
Unencumbered Apartment Communities | Boulevard | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Boulevard | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Bridle Trails
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	108
Initial cost
Land				1,500
Buildings and improvements				5,930
Costs capitalized subsequent to acquisition				6,614
Gross amount carried at close of period
Land and improvements				1,531
Buildings and improvements				12,513
Total	$ 14,044			14,044
Accumulated depreciation	$ (8,949)			(8,949)
Date of construction	1986
Date acquired	Oct-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 14,044
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (8,949)
Unencumbered Apartment Communities | Bridle Trails | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Bridle Trails | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Brighton Ridge
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	264
Initial cost
Land				2,623
Buildings and improvements				10,800
Costs capitalized subsequent to acquisition				6,174
Gross amount carried at close of period
Land and improvements				2,656
Buildings and improvements				16,941
Total	$ 19,597			19,597
Accumulated depreciation	$ (12,601)			(12,601)
Date of construction	1986
Date acquired	Dec-96
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 19,597
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,601)
Unencumbered Apartment Communities | Brighton Ridge | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Brighton Ridge | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Bristol Commons
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	188
Initial cost
Land				5,278
Buildings and improvements				11,853
Costs capitalized subsequent to acquisition				10,206
Gross amount carried at close of period
Land and improvements				5,293
Buildings and improvements				22,044
Total	$ 27,337			27,337
Accumulated depreciation	$ (15,631)			(15,631)
Date of construction	1989
Date acquired	Jan-95
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 27,337
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (15,631)
Unencumbered Apartment Communities | Bristol Commons | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Bristol Commons | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | 416 on Broadway
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	115
Initial cost
Land				8,557
Buildings and improvements				34,235
Costs capitalized subsequent to acquisition				3,407
Gross amount carried at close of period
Land and improvements				8,557
Buildings and improvements				37,642
Total	$ 46,199			46,199
Accumulated depreciation	$ (12,466)			(12,466)
Date of construction	2009
Date acquired	Dec-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 46,199
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,466)
Unencumbered Apartment Communities | 416 on Broadway | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | 416 on Broadway | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Bunker Hill
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	456
Initial cost
Land				11,498
Buildings and improvements				27,871
Costs capitalized subsequent to acquisition				91,959
Gross amount carried at close of period
Land and improvements				11,639
Buildings and improvements				119,689
Total	$ 131,328			131,328
Accumulated depreciation	$ (67,010)			(67,010)
Date of construction	1968
Date acquired	Mar-98
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 131,328
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (67,010)
Unencumbered Apartment Communities | Bunker Hill | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Bunker Hill | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Camarillo Oaks
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	564
Initial cost
Land				10,953
Buildings and improvements				25,254
Costs capitalized subsequent to acquisition				8,562
Gross amount carried at close of period
Land and improvements				11,075
Buildings and improvements				33,694
Total	$ 44,769			44,769
Accumulated depreciation	$ (25,023)			(25,023)
Date of construction	1985
Date acquired	Jul-96
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 44,769
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (25,023)
Unencumbered Apartment Communities | Camarillo Oaks | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Camarillo Oaks | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Cambridge Park
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	320
Initial cost
Land				18,185
Buildings and improvements				72,739
Costs capitalized subsequent to acquisition				3,642
Gross amount carried at close of period
Land and improvements				18,185
Buildings and improvements				76,381
Total	$ 94,566			94,566
Accumulated depreciation	$ (16,732)			(16,732)
Date of construction	1998
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 94,566
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (16,732)
Unencumbered Apartment Communities | Cambridge Park | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Cambridge Park | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Camino Ruiz Square
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	159
Initial cost
Land				6,871
Buildings and improvements				26,119
Costs capitalized subsequent to acquisition				2,349
Gross amount carried at close of period
Land and improvements				6,931
Buildings and improvements				28,408
Total	$ 35,339			35,339
Accumulated depreciation	$ (12,693)			(12,693)
Date of construction	1990
Date acquired	Dec-06
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 35,339
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,693)
Unencumbered Apartment Communities | Camino Ruiz Square | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Camino Ruiz Square | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Canyon Oaks
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	250
Initial cost
Land				19,088
Buildings and improvements				44,473
Costs capitalized subsequent to acquisition				4,988
Gross amount carried at close of period
Land and improvements				19,088
Buildings and improvements				49,461
Total	$ 68,549			68,549
Accumulated depreciation	$ (21,478)			(21,478)
Date of construction	2005
Date acquired	May-07
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 68,549
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (21,478)
Unencumbered Apartment Communities | Canyon Oaks | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Canyon Oaks | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Canyon Pointe
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	250
Initial cost
Land				4,692
Buildings and improvements				18,288
Costs capitalized subsequent to acquisition				9,096
Gross amount carried at close of period
Land and improvements				4,693
Buildings and improvements				27,383
Total	$ 32,076			32,076
Accumulated depreciation	$ (15,931)			(15,931)
Date of construction	1990
Date acquired	Oct-03
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 32,076
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (15,931)
Unencumbered Apartment Communities | Canyon Pointe | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Canyon Pointe | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Capri at Sunny Hills
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	102
Initial cost
Land				3,337
Buildings and improvements				13,320
Costs capitalized subsequent to acquisition				9,503
Gross amount carried at close of period
Land and improvements				4,048
Buildings and improvements				22,112
Total	$ 26,160			26,160
Accumulated depreciation	$ (14,445)			(14,445)
Date of construction	1961
Date acquired	Sep-01
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 26,160
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,445)
Unencumbered Apartment Communities | Capri at Sunny Hills | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Capri at Sunny Hills | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Carmel Creek
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	348
Initial cost
Land				26,842
Buildings and improvements				107,368
Costs capitalized subsequent to acquisition				6,878
Gross amount carried at close of period
Land and improvements				26,842
Buildings and improvements				114,246
Total	$ 141,088			141,088
Accumulated depreciation	$ (25,679)			(25,679)
Date of construction	2000
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 141,088
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (25,679)
Unencumbered Apartment Communities | Carmel Creek | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Carmel Creek | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Carnel Landing
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	356
Initial cost
Land				16,725
Buildings and improvements				66,901
Costs capitalized subsequent to acquisition				9,043
Gross amount carried at close of period
Land and improvements				16,725
Buildings and improvements				75,944
Total	$ 92,669			92,669
Accumulated depreciation	$ (16,943)			(16,943)
Date of construction	1989
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 92,669
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (16,943)
Unencumbered Apartment Communities | Carnel Landing | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Carnel Landing | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Carnel Summit
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	246
Initial cost
Land				14,968
Buildings and improvements				59,871
Costs capitalized subsequent to acquisition				4,154
Gross amount carried at close of period
Land and improvements				14,968
Buildings and improvements				64,025
Total	$ 78,993			78,993
Accumulated depreciation	$ (13,876)			(13,876)
Date of construction	1989
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 78,993
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,876)
Unencumbered Apartment Communities | Carnel Summit | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Carnel Summit | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Castle Creek
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	216
Initial cost
Land				4,149
Buildings and improvements				16,028
Costs capitalized subsequent to acquisition				5,185
Gross amount carried at close of period
Land and improvements				4,833
Buildings and improvements				20,529
Total	$ 25,362			25,362
Accumulated depreciation	$ (14,880)			(14,880)
Date of construction	1998
Date acquired	Dec-98
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 25,362
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,880)
Unencumbered Apartment Communities | Castle Creek | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Castle Creek | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Catalina Gardens
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	128
Initial cost
Land				6,714
Buildings and improvements				26,856
Costs capitalized subsequent to acquisition				1,970
Gross amount carried at close of period
Land and improvements				6,714
Buildings and improvements				28,826
Total	$ 35,540			35,540
Accumulated depreciation	$ (6,159)			(6,159)
Date of construction	1987
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 35,540
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (6,159)
Unencumbered Apartment Communities | Catalina Gardens | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Catalina Gardens | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | CBC Apartments and The Sweeps
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	239
Initial cost
Land				11,841
Buildings and improvements				45,320
Costs capitalized subsequent to acquisition				6,718
Gross amount carried at close of period
Land and improvements				11,906
Buildings and improvements				51,973
Total	$ 63,879			63,879
Accumulated depreciation	$ (26,615)			(26,615)
Date of construction	1962
Date acquired	Jan-06
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 63,879
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (26,615)
Unencumbered Apartment Communities | CBC Apartments and The Sweeps | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | CBC Apartments and The Sweeps | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Cedar Terrace
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	180
Initial cost
Land				5,543
Buildings and improvements				16,442
Costs capitalized subsequent to acquisition				8,092
Gross amount carried at close of period
Land and improvements				5,652
Buildings and improvements				24,425
Total	$ 30,077			30,077
Accumulated depreciation	$ (12,765)			(12,765)
Date of construction	1984
Date acquired	Jan-05
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 30,077
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,765)
Unencumbered Apartment Communities | Cedar Terrace | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Cedar Terrace | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | CentrePointe
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	224
Initial cost
Land				3,405
Buildings and improvements				7,743
Costs capitalized subsequent to acquisition				21,698
Gross amount carried at close of period
Land and improvements				3,442
Buildings and improvements				29,404
Total	$ 32,846			32,846
Accumulated depreciation	$ (20,349)			(20,349)
Date of construction	1974
Date acquired	Jun-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 32,846
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (20,349)
Unencumbered Apartment Communities | CentrePointe | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | CentrePointe | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Chestnut Street Apartments
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	96
Initial cost
Land				6,582
Buildings and improvements				15,689
Costs capitalized subsequent to acquisition				2,057
Gross amount carried at close of period
Land and improvements				6,582
Buildings and improvements				17,746
Total	$ 24,328			24,328
Accumulated depreciation	$ (7,206)			(7,206)
Date of construction	2002
Date acquired	Jul-08
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 24,328
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (7,206)
Unencumbered Apartment Communities | Chestnut Street Apartments | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Chestnut Street Apartments | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Collins on Pine
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	76
Initial cost
Land				7,276
Buildings and improvements				22,226
Costs capitalized subsequent to acquisition				562
Gross amount carried at close of period
Land and improvements				7,276
Buildings and improvements				22,788
Total	$ 30,064			30,064
Accumulated depreciation	$ (4,337)			(4,337)
Date of construction	2013
Date acquired	May-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 30,064
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (4,337)
Unencumbered Apartment Communities | Collins on Pine | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Collins on Pine | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Corbella at Juanita Bay
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	169
Initial cost
Land				5,801
Buildings and improvements				17,415
Costs capitalized subsequent to acquisition				3,815
Gross amount carried at close of period
Land and improvements				5,801
Buildings and improvements				21,230
Total	$ 27,031			27,031
Accumulated depreciation	$ (7,273)			(7,273)
Date of construction	1978
Date acquired	Nov-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 27,031
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (7,273)
Unencumbered Apartment Communities | Corbella at Juanita Bay | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Corbella at Juanita Bay | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Cortesia
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	308
Initial cost
Land				13,912
Buildings and improvements				55,649
Costs capitalized subsequent to acquisition				3,034
Gross amount carried at close of period
Land and improvements				13,912
Buildings and improvements				58,683
Total	$ 72,595			72,595
Accumulated depreciation	$ (12,706)			(12,706)
Date of construction	1999
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 72,595
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,706)
Unencumbered Apartment Communities | Cortesia | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Cortesia | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Country Villas
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	180
Initial cost
Land				4,174
Buildings and improvements				16,583
Costs capitalized subsequent to acquisition				5,358
Gross amount carried at close of period
Land and improvements				4,187
Buildings and improvements				21,928
Total	$ 26,115			26,115
Accumulated depreciation	$ (12,942)			(12,942)
Date of construction	1976
Date acquired	Dec-02
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 26,115
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,942)
Unencumbered Apartment Communities | Country Villas | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Country Villas | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Courtyard off Main
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	110
Initial cost
Land				7,465
Buildings and improvements				21,405
Costs capitalized subsequent to acquisition				4,911
Gross amount carried at close of period
Land and improvements				7,465
Buildings and improvements				26,316
Total	$ 33,781			33,781
Accumulated depreciation	$ (8,924)			(8,924)
Date of construction	2000
Date acquired	Oct-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 33,781
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (8,924)
Unencumbered Apartment Communities | Courtyard off Main | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Courtyard off Main | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Crow Canyon
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	400
Initial cost
Land				37,579
Buildings and improvements				87,685
Costs capitalized subsequent to acquisition				11,695
Gross amount carried at close of period
Land and improvements				37,579
Buildings and improvements				99,380
Total	$ 136,959			136,959
Accumulated depreciation	$ (22,121)			(22,121)
Date of construction	1992
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 136,959
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (22,121)
Unencumbered Apartment Communities | Crow Canyon | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Crow Canyon | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Deer Valley
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	171
Initial cost
Land				21,478
Buildings and improvements				50,116
Costs capitalized subsequent to acquisition				3,175
Gross amount carried at close of period
Land and improvements				21,478
Buildings and improvements				53,291
Total	$ 74,769			74,769
Accumulated depreciation	$ (11,659)			(11,659)
Date of construction	1996
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 74,769
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (11,659)
Unencumbered Apartment Communities | Deer Valley | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Deer Valley | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Delano
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	126
Initial cost
Land				7,470
Buildings and improvements				22,511
Costs capitalized subsequent to acquisition				1,655
Gross amount carried at close of period
Land and improvements				7,470
Buildings and improvements				24,166
Total	$ 31,636			31,636
Accumulated depreciation	$ (6,762)			(6,762)
Date of construction	2005
Date acquired	Dec-11
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 31,636
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (6,762)
Unencumbered Apartment Communities | Delano | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Delano | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Devonshire
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	276
Initial cost
Land				3,470
Buildings and improvements				13,786
Costs capitalized subsequent to acquisition				5,988
Gross amount carried at close of period
Land and improvements				3,482
Buildings and improvements				19,762
Total	$ 23,244			23,244
Accumulated depreciation	$ (11,177)			(11,177)
Date of construction	1988
Date acquired	Dec-02
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 23,244
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (11,177)
Unencumbered Apartment Communities | Devonshire | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Devonshire | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Elevation
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	158
Initial cost
Land				4,758
Buildings and improvements				14,285
Costs capitalized subsequent to acquisition				7,182
Gross amount carried at close of period
Land and improvements				4,757
Buildings and improvements				21,468
Total	$ 26,225			26,225
Accumulated depreciation	$ (9,807)			(9,807)
Date of construction	1986
Date acquired	Jun-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 26,225
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (9,807)
Unencumbered Apartment Communities | Elevation | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Elevation | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Ellington
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	220
Initial cost
Land				15,066
Buildings and improvements				45,249
Costs capitalized subsequent to acquisition				3,914
Gross amount carried at close of period
Land and improvements				15,066
Buildings and improvements				49,163
Total	$ 64,229			64,229
Accumulated depreciation	$ (9,897)			(9,897)
Date of construction	1994
Date acquired	Jul-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 64,229
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (9,897)
Unencumbered Apartment Communities | Ellington | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Ellington | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Emerald Pointe
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	160
Initial cost
Land				8,458
Buildings and improvements				33,832
Costs capitalized subsequent to acquisition				2,098
Gross amount carried at close of period
Land and improvements				8,458
Buildings and improvements				35,930
Total	$ 44,388			44,388
Accumulated depreciation	$ (7,907)			(7,907)
Date of construction	1989
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 44,388
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (7,907)
Unencumbered Apartment Communities | Emerald Pointe | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Emerald Pointe | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Emerald Ridge
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	180
Initial cost
Land				3,449
Buildings and improvements				7,801
Costs capitalized subsequent to acquisition				6,444
Gross amount carried at close of period
Land and improvements				3,449
Buildings and improvements				14,245
Total	$ 17,694			17,694
Accumulated depreciation	$ (10,963)			(10,963)
Date of construction	1987
Date acquired	Nov-94
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 17,694
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,963)
Unencumbered Apartment Communities | Emerald Ridge | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Emerald Ridge | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Emerson Valley Village
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	144
Initial cost
Land				13,378
Buildings and improvements				53,240
Costs capitalized subsequent to acquisition				979
Gross amount carried at close of period
Land and improvements				13,378
Buildings and improvements				54,219
Total	$ 67,597			67,597
Accumulated depreciation	$ (5,806)			(5,806)
Date of construction	2012
Date acquired	Dec-16
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 67,597
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (5,806)
Unencumbered Apartment Communities | Emerson Valley Village | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Emerson Valley Village | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Enso
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	183
Initial cost
Land				21,397
Buildings and improvements				71,135
Costs capitalized subsequent to acquisition				1,630
Gross amount carried at close of period
Land and improvements				21,397
Buildings and improvements				72,765
Total	$ 94,162			94,162
Accumulated depreciation	$ (10,555)			(10,555)
Date of construction	2014
Date acquired	Dec-15
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 94,162
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,555)
Unencumbered Apartment Communities | Enso | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Enso | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Esplanade
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	278
Initial cost
Land				18,170
Buildings and improvements				40,086
Costs capitalized subsequent to acquisition				15,809
Gross amount carried at close of period
Land and improvements				18,429
Buildings and improvements				55,636
Total	$ 74,065			74,065
Accumulated depreciation	$ (29,746)			(29,746)
Date of construction	2002
Date acquired	Apr-04
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 74,065
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (29,746)
Unencumbered Apartment Communities | Esplanade | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Esplanade | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Essex Skyline
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	349
Initial cost
Land				21,537
Buildings and improvements				146,099
Costs capitalized subsequent to acquisition				10,028
Gross amount carried at close of period
Land and improvements				21,537
Buildings and improvements				156,127
Total	$ 177,664			177,664
Accumulated depreciation	$ (41,718)			(41,718)
Date of construction	2008
Date acquired	Apr-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 177,664
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (41,718)
Unencumbered Apartment Communities | Essex Skyline | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Essex Skyline | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Evergreen Heights
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	200
Initial cost
Land				3,566
Buildings and improvements				13,395
Costs capitalized subsequent to acquisition				6,886
Gross amount carried at close of period
Land and improvements				3,649
Buildings and improvements				20,198
Total	$ 23,847			23,847
Accumulated depreciation	$ (14,843)			(14,843)
Date of construction	1990
Date acquired	Jun-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 23,847
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,843)
Unencumbered Apartment Communities | Evergreen Heights | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Evergreen Heights | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Fairway Apartments at Big Canyon
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	74
Initial cost
Land				0
Buildings and improvements				7,850
Costs capitalized subsequent to acquisition				8,180
Gross amount carried at close of period
Land and improvements				0
Buildings and improvements				16,030
Total	$ 16,030			16,030
Accumulated depreciation	$ (11,744)			(11,744)
Date of construction	1972
Date acquired	Jun-99
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 16,030
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (11,744)
Unencumbered Apartment Communities | Fairway Apartments at Big Canyon | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Fairway Apartments at Big Canyon | Maximum
Gross amount carried at close of period
Life used for depreciation	28 years
Unencumbered Apartment Communities | Fairwood Pond
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	194
Initial cost
Land				5,296
Buildings and improvements				15,564
Costs capitalized subsequent to acquisition				4,408
Gross amount carried at close of period
Land and improvements				5,297
Buildings and improvements				19,971
Total	$ 25,268			25,268
Accumulated depreciation	$ (10,643)			(10,643)
Date of construction	1997
Date acquired	Oct-04
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 25,268
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,643)
Unencumbered Apartment Communities | Fairwood Pond | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Fairwood Pond | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Foothill Commons
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	394
Initial cost
Land				2,435
Buildings and improvements				9,821
Costs capitalized subsequent to acquisition				41,492
Gross amount carried at close of period
Land and improvements				2,440
Buildings and improvements				51,308
Total	$ 53,748			53,748
Accumulated depreciation	$ (45,513)			(45,513)
Date of construction	1978
Date acquired	Mar-90
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 53,748
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (45,513)
Unencumbered Apartment Communities | Foothill Commons | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Foothill Commons | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Foothill Gardens/Twin Creeks
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	176
Initial cost
Land				5,875
Buildings and improvements				13,992
Costs capitalized subsequent to acquisition				11,404
Gross amount carried at close of period
Land and improvements				5,964
Buildings and improvements				25,307
Total	$ 31,271			31,271
Accumulated depreciation	$ (18,366)			(18,366)
Date of construction	1985
Date acquired	Feb-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 31,271
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (18,366)
Unencumbered Apartment Communities | Foothill Gardens/Twin Creeks | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Foothill Gardens/Twin Creeks | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Forest View
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	192
Initial cost
Land				3,731
Buildings and improvements				14,530
Costs capitalized subsequent to acquisition				3,095
Gross amount carried at close of period
Land and improvements				3,731
Buildings and improvements				17,625
Total	$ 21,356			21,356
Accumulated depreciation	$ (9,840)			(9,840)
Date of construction	1998
Date acquired	Oct-03
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 21,356
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (9,840)
Unencumbered Apartment Communities | Forest View | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Forest View | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Foster's Landing
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	490
Initial cost
Land				61,714
Buildings and improvements				144,000
Costs capitalized subsequent to acquisition				10,178
Gross amount carried at close of period
Land and improvements				61,714
Buildings and improvements				154,178
Total	$ 215,892			215,892
Accumulated depreciation	$ (35,111)			(35,111)
Date of construction	1987
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 215,892
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (35,111)
Unencumbered Apartment Communities | Fountain Court
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	320
Initial cost
Land				6,702
Buildings and improvements				27,306
Costs capitalized subsequent to acquisition				13,162
Gross amount carried at close of period
Land and improvements				6,985
Buildings and improvements				40,185
Total	$ 47,170			47,170
Accumulated depreciation	$ (28,006)			(28,006)
Date of construction	2000
Date acquired	Mar-00
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 47,170
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (28,006)
Unencumbered Apartment Communities | Fountain Court | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Fountain Court | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Fountain At Riveroaks
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	226
Initial cost
Land				26,046
Buildings and improvements				60,773
Costs capitalized subsequent to acquisition				5,104
Gross amount carried at close of period
Land and improvements				26,046
Buildings and improvements				65,877
Total	$ 91,923			91,923
Accumulated depreciation	$ (14,742)			(14,742)
Date of construction	1990
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 91,923
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,742)
Unencumbered Apartment Communities | Fountain At Riveroaks | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Fountain At Riveroaks | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Fourth & U
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	171
Initial cost
Land				8,879
Buildings and improvements				52,351
Costs capitalized subsequent to acquisition				3,967
Gross amount carried at close of period
Land and improvements				8,879
Buildings and improvements				56,318
Total	$ 65,197			65,197
Accumulated depreciation	$ (19,549)			(19,549)
Date of construction	2010
Date acquired	Apr-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 65,197
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (19,549)
Unencumbered Apartment Communities | Fourth & U | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Fourth & U | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Fox Plaza
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	445
Initial cost
Land				39,731
Buildings and improvements				92,706
Costs capitalized subsequent to acquisition				35,532
Gross amount carried at close of period
Land and improvements				39,731
Buildings and improvements				128,238
Total	$ 167,969			167,969
Accumulated depreciation	$ (34,285)			(34,285)
Date of construction	1968
Date acquired	Feb-13
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 167,969
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (34,285)
Unencumbered Apartment Communities | Fox Plaza | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Fox Plaza | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Henley I/The Henley II
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	215
Initial cost
Land				6,695
Buildings and improvements				16,753
Costs capitalized subsequent to acquisition				27,953
Gross amount carried at close of period
Land and improvements				6,733
Buildings and improvements				44,668
Total	$ 51,401			51,401
Accumulated depreciation	$ (26,394)			(26,394)
Date of construction	1970
Date acquired	Jun-99
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 51,401
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (26,394)
Unencumbered Apartment Communities | The Henley I/The Henley II | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Henley I/The Henley II | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Highlands at Wynhaven
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	333
Initial cost
Land				16,271
Buildings and improvements				48,932
Costs capitalized subsequent to acquisition				14,851
Gross amount carried at close of period
Land and improvements				16,271
Buildings and improvements				63,783
Total	$ 80,054			80,054
Accumulated depreciation	$ (27,806)			(27,806)
Date of construction	2000
Date acquired	Aug-08
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 80,054
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (27,806)
Unencumbered Apartment Communities | Highlands at Wynhaven | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Highlands at Wynhaven | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Hillcrest Park
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	608
Initial cost
Land				15,318
Buildings and improvements				40,601
Costs capitalized subsequent to acquisition				21,179
Gross amount carried at close of period
Land and improvements				15,755
Buildings and improvements				61,343
Total	$ 77,098			77,098
Accumulated depreciation	$ (42,560)			(42,560)
Date of construction	1973
Date acquired	Mar-98
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 77,098
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (42,560)
Unencumbered Apartment Communities | Hillcrest Park | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Hillcrest Park | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Hillsdale Garden
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	697
Initial cost
Land				22,000
Buildings and improvements				94,681
Costs capitalized subsequent to acquisition				28,988
Gross amount carried at close of period
Land and improvements				22,000
Buildings and improvements				123,669
Total	$ 145,669			145,669
Accumulated depreciation	$ (58,877)			(58,877)
Date of construction	1948
Date acquired	Sep-06
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 145,669
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (58,877)
Unencumbered Apartment Communities | Hillsdale Garden | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Hillsdale Garden | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Hope Ranch
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	108
Initial cost
Land				4,078
Buildings and improvements				16,877
Costs capitalized subsequent to acquisition				2,989
Gross amount carried at close of period
Land and improvements				4,208
Buildings and improvements				19,736
Total	$ 23,944			23,944
Accumulated depreciation	$ (8,757)			(8,757)
Date of construction	1965
Date acquired	Mar-07
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 23,944
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (8,757)
Unencumbered Apartment Communities | Hope Ranch | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Hope Ranch | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Huntington Breakers
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	342
Initial cost
Land				9,306
Buildings and improvements				22,720
Costs capitalized subsequent to acquisition				21,487
Gross amount carried at close of period
Land and improvements				9,315
Buildings and improvements				44,198
Total	$ 53,513			53,513
Accumulated depreciation	$ (32,546)			(32,546)
Date of construction	1984
Date acquired	Oct-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 53,513
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (32,546)
Unencumbered Apartment Communities | Huntington Breakers | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Huntington Breakers | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Inglenook Court
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	224
Initial cost
Land				3,467
Buildings and improvements				7,881
Costs capitalized subsequent to acquisition				8,307
Gross amount carried at close of period
Land and improvements				3,474
Buildings and improvements				16,181
Total	$ 19,655			19,655
Accumulated depreciation	$ (13,291)			(13,291)
Date of construction	1985
Date acquired	Oct-94
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 19,655
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,291)
Unencumbered Apartment Communities | Inglenook Court | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Inglenook Court | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Lafayette Highlands
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	150
Initial cost
Land				17,774
Buildings and improvements				41,473
Costs capitalized subsequent to acquisition				3,526
Gross amount carried at close of period
Land and improvements				17,774
Buildings and improvements				44,999
Total	$ 62,773			62,773
Accumulated depreciation	$ (9,732)			(9,732)
Date of construction	1973
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 62,773
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (9,732)
Unencumbered Apartment Communities | Lafayette Highlands | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Lafayette Highlands | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Lakeshore Landing
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	308
Initial cost
Land				38,155
Buildings and improvements				89,028
Costs capitalized subsequent to acquisition				8,183
Gross amount carried at close of period
Land and improvements				38,155
Buildings and improvements				97,211
Total	$ 135,366			135,366
Accumulated depreciation	$ (22,592)			(22,592)
Date of construction	1988
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 135,366
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (22,592)
Unencumbered Apartment Communities | Lakeshore Landing | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Lakeshore Landing | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Laurels at Mill Creek
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	164
Initial cost
Land				1,559
Buildings and improvements				6,430
Costs capitalized subsequent to acquisition				8,202
Gross amount carried at close of period
Land and improvements				1,595
Buildings and improvements				14,596
Total	$ 16,191			16,191
Accumulated depreciation	$ (10,517)			(10,517)
Date of construction	1981
Date acquired	Dec-96
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 16,191
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,517)
Unencumbered Apartment Communities | Laurels at Mill Creek | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Laurels at Mill Creek | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Lawrence Station
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	336
Initial cost
Land				45,532
Buildings and improvements				106,735
Costs capitalized subsequent to acquisition				2,006
Gross amount carried at close of period
Land and improvements				45,532
Buildings and improvements				108,741
Total	$ 154,273			154,273
Accumulated depreciation	$ (27,218)			(27,218)
Date of construction	2012
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 154,273
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (27,218)
Unencumbered Apartment Communities | Lawrence Station | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Lawrence Station | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Le Parc
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	140
Initial cost
Land				3,090
Buildings and improvements				7,421
Costs capitalized subsequent to acquisition				13,782
Gross amount carried at close of period
Land and improvements				3,092
Buildings and improvements				21,201
Total	$ 24,293			24,293
Accumulated depreciation	$ (16,474)			(16,474)
Date of construction	1975
Date acquired	Feb-94
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 24,293
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (16,474)
Unencumbered Apartment Communities | Le Parc | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Le Parc | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Marbrisa
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	202
Initial cost
Land				4,700
Buildings and improvements				18,605
Costs capitalized subsequent to acquisition				9,755
Gross amount carried at close of period
Land and improvements				4,760
Buildings and improvements				28,300
Total	$ 33,060			33,060
Accumulated depreciation	$ (17,214)			(17,214)
Date of construction	1987
Date acquired	Sep-02
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 33,060
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (17,214)
Unencumbered Apartment Communities | Marbrisa | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Marbrisa | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Marina City Club
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	101
Initial cost
Land				0
Buildings and improvements				28,167
Costs capitalized subsequent to acquisition				31,783
Gross amount carried at close of period
Land and improvements				0
Buildings and improvements				59,950
Total	$ 59,950			59,950
Accumulated depreciation	$ (28,367)			(28,367)
Date of construction	1971
Date acquired	Jan-04
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 59,950
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (28,367)
Unencumbered Apartment Communities | Marina City Club | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Marina City Club | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Marina Cove
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	292
Initial cost
Land				5,320
Buildings and improvements				16,431
Costs capitalized subsequent to acquisition				15,948
Gross amount carried at close of period
Land and improvements				5,324
Buildings and improvements				32,375
Total	$ 37,699			37,699
Accumulated depreciation	$ (26,197)			(26,197)
Date of construction	1974
Date acquired	Jun-94
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 37,699
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (26,197)
Unencumbered Apartment Communities | Marina Cove | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Marina Cove | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Mariner's Place
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	105
Initial cost
Land				1,555
Buildings and improvements				6,103
Costs capitalized subsequent to acquisition				2,589
Gross amount carried at close of period
Land and improvements				1,562
Buildings and improvements				8,685
Total	$ 10,247			10,247
Accumulated depreciation	$ (6,020)			(6,020)
Date of construction	1987
Date acquired	May-00
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 10,247
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (6,020)
Unencumbered Apartment Communities | Mariner's Place | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Mariner's Place | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | MB 360
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	360
Initial cost
Land				42,001
Buildings and improvements				212,648
Costs capitalized subsequent to acquisition				11,373
Gross amount carried at close of period
Land and improvements				42,001
Buildings and improvements				224,021
Total	$ 266,022			266,022
Accumulated depreciation	$ (41,021)			(41,021)
Date of construction	2014
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 266,022
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (41,021)
Unencumbered Apartment Communities | MB 360 | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | MB 360 | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Mesa Village
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	133
Initial cost
Land				1,888
Buildings and improvements				7,498
Costs capitalized subsequent to acquisition				2,591
Gross amount carried at close of period
Land and improvements				1,894
Buildings and improvements				10,083
Total	$ 11,977			11,977
Accumulated depreciation	$ (5,624)			(5,624)
Date of construction	1963
Date acquired	Dec-02
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 11,977
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (5,624)
Unencumbered Apartment Communities | Mesa Village | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Mesa Village | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Mill Creek at Windermere
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	400
Initial cost
Land				29,551
Buildings and improvements				69,032
Costs capitalized subsequent to acquisition				6,201
Gross amount carried at close of period
Land and improvements				29,551
Buildings and improvements				75,233
Total	$ 104,784			104,784
Accumulated depreciation	$ (31,986)			(31,986)
Date of construction	2005
Date acquired	Sep-07
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 104,784
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (31,986)
Unencumbered Apartment Communities | Mill Creek at Windermere | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Mill Creek at Windermere | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Mio
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	103
Initial cost
Land				11,012
Buildings and improvements				39,982
Costs capitalized subsequent to acquisition				557
Gross amount carried at close of period
Land and improvements				11,012
Buildings and improvements				40,539
Total	$ 51,551			51,551
Accumulated depreciation	$ (5,695)			(5,695)
Date of construction	2015
Date acquired	Jan-16
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 51,551
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (5,695)
Unencumbered Apartment Communities | Mio | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Mio | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Mirabella
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	188
Initial cost
Land				6,180
Buildings and improvements				26,673
Costs capitalized subsequent to acquisition				16,790
Gross amount carried at close of period
Land and improvements				6,270
Buildings and improvements				43,373
Total	$ 49,643			49,643
Accumulated depreciation	$ (26,253)			(26,253)
Date of construction	2000
Date acquired	May-00
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 49,643
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (26,253)
Unencumbered Apartment Communities | Mirabella | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Mirabella | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Mira Monte
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	354
Initial cost
Land				7,165
Buildings and improvements				28,459
Costs capitalized subsequent to acquisition				11,933
Gross amount carried at close of period
Land and improvements				7,186
Buildings and improvements				40,371
Total	$ 47,557			47,557
Accumulated depreciation	$ (25,280)			(25,280)
Date of construction	1982
Date acquired	Dec-02
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 47,557
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (25,280)
Unencumbered Apartment Communities | Mira Monte | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Mira Monte | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Miracle Mile Marbella
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	236
Initial cost
Land				7,791
Buildings and improvements				23,075
Costs capitalized subsequent to acquisition				15,151
Gross amount carried at close of period
Land and improvements				7,886
Buildings and improvements				38,131
Total	$ 46,017			46,017
Accumulated depreciation	$ (27,856)			(27,856)
Date of construction	1988
Date acquired	Aug-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 46,017
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (27,856)
Unencumbered Apartment Communities | Miracle Mile Marbella | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Miracle Mile Marbella | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Mission Hills
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	282
Initial cost
Land				10,099
Buildings and improvements				38,778
Costs capitalized subsequent to acquisition				11,134
Gross amount carried at close of period
Land and improvements				10,167
Buildings and improvements				49,844
Total	$ 60,011			60,011
Accumulated depreciation	$ (24,458)			(24,458)
Date of construction	1984
Date acquired	Jul-05
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 60,011
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (24,458)
Unencumbered Apartment Communities | Mission Hills | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Mission Hills | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Mission Peaks
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	453
Initial cost
Land				46,499
Buildings and improvements				108,498
Costs capitalized subsequent to acquisition				7,387
Gross amount carried at close of period
Land and improvements				46,499
Buildings and improvements				115,885
Total	$ 162,384			162,384
Accumulated depreciation	$ (25,036)			(25,036)
Date of construction	1995
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 162,384
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (25,036)
Unencumbered Apartment Communities | Mission Peaks | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Mission Peaks | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Mission Peaks II
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	336
Initial cost
Land				31,429
Buildings and improvements				73,334
Costs capitalized subsequent to acquisition				7,308
Gross amount carried at close of period
Land and improvements				31,429
Buildings and improvements				80,642
Total	$ 112,071			112,071
Accumulated depreciation	$ (17,908)			(17,908)
Date of construction	1989
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 112,071
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (17,908)
Unencumbered Apartment Communities | Mission Peaks II | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Mission Peaks II | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Montclaire
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	390
Initial cost
Land				4,842
Buildings and improvements				19,776
Costs capitalized subsequent to acquisition				28,185
Gross amount carried at close of period
Land and improvements				4,997
Buildings and improvements				47,806
Total	$ 52,803			52,803
Accumulated depreciation	$ (41,752)			(41,752)
Date of construction	1973
Date acquired	Dec-88
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 52,803
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (41,752)
Unencumbered Apartment Communities | Montclaire | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Montclaire | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Monterey Villas
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	122
Initial cost
Land				2,349
Buildings and improvements				5,579
Costs capitalized subsequent to acquisition				6,873
Gross amount carried at close of period
Land and improvements				2,424
Buildings and improvements				12,377
Total	$ 14,801			14,801
Accumulated depreciation	$ (8,553)			(8,553)
Date of construction	1974
Date acquired	Jul-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 14,801
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (8,553)
Unencumbered Apartment Communities | Monterey Villas | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Monterey Villas | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Muse
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	152
Initial cost
Land				7,822
Buildings and improvements				33,436
Costs capitalized subsequent to acquisition				3,466
Gross amount carried at close of period
Land and improvements				7,823
Buildings and improvements				36,901
Total	$ 44,724			44,724
Accumulated depreciation	$ (13,932)			(13,932)
Date of construction	2011
Date acquired	Feb-11
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 44,724
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,932)
Unencumbered Apartment Communities | Muse | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Muse | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Museum Park
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	117
Initial cost
Land				13,864
Buildings and improvements				32,348
Costs capitalized subsequent to acquisition				2,012
Gross amount carried at close of period
Land and improvements				13,864
Buildings and improvements				34,360
Total	$ 48,224			48,224
Accumulated depreciation	$ (7,530)			(7,530)
Date of construction	2002
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 48,224
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (7,530)
Unencumbered Apartment Communities | Museum Park | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Museum Park | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | One South Market
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	312
Initial cost
Land				28,290
Buildings and improvements				148,649
Costs capitalized subsequent to acquisition				162
Gross amount carried at close of period
Land and improvements				28,290
Buildings and improvements				148,811
Total	$ 177,101			177,101
Accumulated depreciation	$ (3,931)			(3,931)
Date of construction	2015
Date acquired	Mar-19
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 177,101
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (3,931)
Unencumbered Apartment Communities | One South Market | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | One South Market | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Palm Valley
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	1,099
Initial cost
Land				133,802
Buildings and improvements				312,205
Costs capitalized subsequent to acquisition				15,296
Gross amount carried at close of period
Land and improvements				133,802
Buildings and improvements				327,501
Total	$ 461,303			461,303
Accumulated depreciation	$ (35,244)			(35,244)
Date of construction	2008
Date acquired	Jan-17
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 461,303
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (35,244)
Unencumbered Apartment Communities | Palm Valley | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Palm Valley | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Paragon Apartments
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	301
Initial cost
Land				32,230
Buildings and improvements				77,320
Costs capitalized subsequent to acquisition				2,173
Gross amount carried at close of period
Land and improvements				32,230
Buildings and improvements				79,493
Total	$ 111,723			111,723
Accumulated depreciation	$ (14,796)			(14,796)
Date of construction	2013
Date acquired	Jul-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 111,723
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,796)
Unencumbered Apartment Communities | Paragon Apartments | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Paragon Apartments | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Park Catalina
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	90
Initial cost
Land				4,710
Buildings and improvements				18,839
Costs capitalized subsequent to acquisition				3,372
Gross amount carried at close of period
Land and improvements				4,710
Buildings and improvements				22,211
Total	$ 26,921			26,921
Accumulated depreciation	$ (7,029)			(7,029)
Date of construction	2002
Date acquired	Jun-12
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 26,921
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (7,029)
Unencumbered Apartment Communities | Park Catalina | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Park Catalina | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Park Highland
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	250
Initial cost
Land				9,391
Buildings and improvements				38,224
Costs capitalized subsequent to acquisition				12,981
Gross amount carried at close of period
Land and improvements				9,391
Buildings and improvements				51,205
Total	$ 60,596			60,596
Accumulated depreciation	$ (13,942)			(13,942)
Date of construction	1993
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 60,596
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,942)
Unencumbered Apartment Communities | Park Highland | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Park Highland | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Park Hill at Issaquah
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	245
Initial cost
Land				7,284
Buildings and improvements				21,937
Costs capitalized subsequent to acquisition				10,119
Gross amount carried at close of period
Land and improvements				7,284
Buildings and improvements				32,056
Total	$ 39,340			39,340
Accumulated depreciation	$ (16,614)			(16,614)
Date of construction	1999
Date acquired	Feb-99
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 39,340
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (16,614)
Unencumbered Apartment Communities | Park Hill at Issaquah | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Park Hill at Issaquah | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Park Viridian
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	320
Initial cost
Land				15,894
Buildings and improvements				63,574
Costs capitalized subsequent to acquisition				3,789
Gross amount carried at close of period
Land and improvements				15,894
Buildings and improvements				67,363
Total	$ 83,257			83,257
Accumulated depreciation	$ (14,776)			(14,776)
Date of construction	2008
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 83,257
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,776)
Unencumbered Apartment Communities | Park Viridian | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Park Viridian | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Park West
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	126
Initial cost
Land				9,424
Buildings and improvements				21,988
Costs capitalized subsequent to acquisition				12,500
Gross amount carried at close of period
Land and improvements				9,424
Buildings and improvements				34,488
Total	$ 43,912			43,912
Accumulated depreciation	$ (11,971)			(11,971)
Date of construction	1958
Date acquired	Sep-12
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 43,912
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (11,971)
Unencumbered Apartment Communities | Park West | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Park West | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Parkwood at Mill Creek
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	240
Initial cost
Land				10,680
Buildings and improvements				42,722
Costs capitalized subsequent to acquisition				3,376
Gross amount carried at close of period
Land and improvements				10,680
Buildings and improvements				46,098
Total	$ 56,778			56,778
Accumulated depreciation	$ (10,263)			(10,263)
Date of construction	1989
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 56,778
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,263)
Unencumbered Apartment Communities | Parkwood at Mill Creek | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Parkwood at Mill Creek | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Patent 523
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	295
Initial cost
Land				14,558
Buildings and improvements				69,417
Costs capitalized subsequent to acquisition				5,923
Gross amount carried at close of period
Land and improvements				14,558
Buildings and improvements				75,340
Total	$ 89,898			89,898
Accumulated depreciation	$ (26,798)			(26,798)
Date of construction	2010
Date acquired	Mar-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 89,898
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (26,798)
Unencumbered Apartment Communities | Patent 523 | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Patent 523 | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Pathways at Bixby Village
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	296
Initial cost
Land				4,083
Buildings and improvements				16,757
Costs capitalized subsequent to acquisition				21,850
Gross amount carried at close of period
Land and improvements				6,239
Buildings and improvements				36,451
Total	$ 42,690			42,690
Accumulated depreciation	$ (31,839)			(31,839)
Date of construction	1975
Date acquired	Feb-91
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 42,690
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (31,839)
Unencumbered Apartment Communities | Pathways at Bixby Village | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Pathways at Bixby Village | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Piedmont
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	396
Initial cost
Land				19,848
Buildings and improvements				59,606
Costs capitalized subsequent to acquisition				12,913
Gross amount carried at close of period
Land and improvements				19,848
Buildings and improvements				72,519
Total	$ 92,367			92,367
Accumulated depreciation	$ (16,747)			(16,747)
Date of construction	1969
Date acquired	May-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 92,367
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (16,747)
Unencumbered Apartment Communities | Piedmont | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Piedmont | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Pinehurst
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	28
Initial cost
Land				0
Buildings and improvements				1,711
Costs capitalized subsequent to acquisition				731
Gross amount carried at close of period
Land and improvements				0
Buildings and improvements				2,442
Total	$ 2,442			2,442
Accumulated depreciation	$ (1,517)			(1,517)
Date of construction	1973
Date acquired	Dec-04
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 2,442
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (1,517)
Unencumbered Apartment Communities | Pinehurst | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Pinehurst | Maximum
Gross amount carried at close of period
Life used for depreciation	24 years
Unencumbered Apartment Communities | Pinnacle at Fullerton
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	192
Initial cost
Land				11,019
Buildings and improvements				45,932
Costs capitalized subsequent to acquisition				3,983
Gross amount carried at close of period
Land and improvements				11,019
Buildings and improvements				49,915
Total	$ 60,934			60,934
Accumulated depreciation	$ (11,134)			(11,134)
Date of construction	2004
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 60,934
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (11,134)
Unencumbered Apartment Communities | Pinnacle at Fullerton | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Pinnacle at Fullerton | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Pinnacle on Lake Washington
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	180
Initial cost
Land				7,760
Buildings and improvements				31,041
Costs capitalized subsequent to acquisition				3,513
Gross amount carried at close of period
Land and improvements				7,760
Buildings and improvements				34,554
Total	$ 42,314			42,314
Accumulated depreciation	$ (7,545)			(7,545)
Date of construction	2001
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 42,314
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (7,545)
Unencumbered Apartment Communities | Pinnacle on Lake Washington | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Pinnacle on Lake Washington | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Pinnacle at MacArthur Place
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	253
Initial cost
Land				15,810
Buildings and improvements				66,401
Costs capitalized subsequent to acquisition				5,238
Gross amount carried at close of period
Land and improvements				15,810
Buildings and improvements				71,639
Total	$ 87,449			87,449
Accumulated depreciation	$ (15,689)			(15,689)
Date of construction	2002
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 87,449
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (15,689)
Unencumbered Apartment Communities | Pinnacle at MacArthur Place | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Pinnacle at MacArthur Place | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Pinnacle at Otay Ranch I & II
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	364
Initial cost
Land				17,023
Buildings and improvements				68,093
Costs capitalized subsequent to acquisition				4,227
Gross amount carried at close of period
Land and improvements				17,023
Buildings and improvements				72,320
Total	$ 89,343			89,343
Accumulated depreciation	$ (15,862)			(15,862)
Date of construction	2001
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 89,343
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (15,862)
Unencumbered Apartment Communities | Pinnacle at Otay Ranch I & II | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Pinnacle at Otay Ranch I & II | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Pinnacle at Talega
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	362
Initial cost
Land				19,292
Buildings and improvements				77,168
Costs capitalized subsequent to acquisition				3,097
Gross amount carried at close of period
Land and improvements				19,292
Buildings and improvements				80,265
Total	$ 99,557			99,557
Accumulated depreciation	$ (17,314)			(17,314)
Date of construction	2002
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 99,557
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (17,314)
Unencumbered Apartment Communities | Pinnacle at Talega | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Pinnacle at Talega | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Pinnacle Sonata
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	268
Initial cost
Land				14,647
Buildings and improvements				58,586
Costs capitalized subsequent to acquisition				4,597
Gross amount carried at close of period
Land and improvements				14,647
Buildings and improvements				63,183
Total	$ 77,830			77,830
Accumulated depreciation	$ (13,613)			(13,613)
Date of construction	2000
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 77,830
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,613)
Unencumbered Apartment Communities | Pinnacle Sonata | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Pinnacle Sonata | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Pointe at Cupertino
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	116
Initial cost
Land				4,505
Buildings and improvements				17,605
Costs capitalized subsequent to acquisition				12,637
Gross amount carried at close of period
Land and improvements				4,505
Buildings and improvements				30,242
Total	$ 34,747			34,747
Accumulated depreciation	$ (19,206)			(19,206)
Date of construction	1963
Date acquired	Aug-98
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 34,747
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (19,206)
Unencumbered Apartment Communities | Pointe at Cupertino | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Pointe at Cupertino | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Pure Redmond
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	105
Initial cost
Land				7,461
Buildings and improvements				31,363
Costs capitalized subsequent to acquisition				0
Gross amount carried at close of period
Land and improvements				7,461
Buildings and improvements				31,363
Total	$ 38,824			38,824
Accumulated depreciation	$ (46)			(46)
Date of construction	2016
Date acquired	Dec-19
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 38,824
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (46)
Unencumbered Apartment Communities | Pure Redmond | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Pure Redmond | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Radius
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	264
Initial cost
Land				11,702
Buildings and improvements				152,336
Costs capitalized subsequent to acquisition				904
Gross amount carried at close of period
Land and improvements				11,702
Buildings and improvements				153,240
Total	$ 164,942			164,942
Accumulated depreciation	$ (33,929)			(33,929)
Date of construction	2015
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 164,942
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (33,929)
Unencumbered Apartment Communities | Radius | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Radius | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Reed Square
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	100
Initial cost
Land				6,873
Buildings and improvements				16,037
Costs capitalized subsequent to acquisition				8,451
Gross amount carried at close of period
Land and improvements				6,873
Buildings and improvements				24,488
Total	$ 31,361			31,361
Accumulated depreciation	$ (10,156)			(10,156)
Date of construction	1970
Date acquired	Jan-12
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 31,361
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (10,156)
Unencumbered Apartment Communities | Reed Square | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Reed Square | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Regency at Encino
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	75
Initial cost
Land				3,184
Buildings and improvements				12,737
Costs capitalized subsequent to acquisition				3,911
Gross amount carried at close of period
Land and improvements				3,184
Buildings and improvements				16,648
Total	$ 19,832			19,832
Accumulated depreciation	$ (6,945)			(6,945)
Date of construction	1989
Date acquired	Dec-09
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 19,832
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (6,945)
Unencumbered Apartment Communities | Regency at Encino | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Regency at Encino | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Renaissance at Uptown Orange
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	460
Initial cost
Land				27,870
Buildings and improvements				111,482
Costs capitalized subsequent to acquisition				6,212
Gross amount carried at close of period
Land and improvements				27,870
Buildings and improvements				117,694
Total	$ 145,564			145,564
Accumulated depreciation	$ (25,469)			(25,469)
Date of construction	2007
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 145,564
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (25,469)
Unencumbered Apartment Communities | Renaissance at Uptown Orange | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Renaissance at Uptown Orange | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Reveal
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	438
Initial cost
Land				25,073
Buildings and improvements				121,314
Costs capitalized subsequent to acquisition				2,446
Gross amount carried at close of period
Land and improvements				25,073
Buildings and improvements				123,760
Total	$ 148,833			148,833
Accumulated depreciation	$ (22,720)			(22,720)
Date of construction	2010
Date acquired	Apr-15
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 148,833
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (22,720)
Unencumbered Apartment Communities | The Reveal | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Reveal | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Salmon Run at Perry Creek
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	132
Initial cost
Land				3,717
Buildings and improvements				11,483
Costs capitalized subsequent to acquisition				2,941
Gross amount carried at close of period
Land and improvements				3,801
Buildings and improvements				14,340
Total	$ 18,141			18,141
Accumulated depreciation	$ (8,857)			(8,857)
Date of construction	2000
Date acquired	Oct-00
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 18,141
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (8,857)
Unencumbered Apartment Communities | Salmon Run at Perry Creek | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Salmon Run at Perry Creek | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Sammamish View
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	153
Initial cost
Land				3,324
Buildings and improvements				7,501
Costs capitalized subsequent to acquisition				7,285
Gross amount carried at close of period
Land and improvements				3,331
Buildings and improvements				14,779
Total	$ 18,110			18,110
Accumulated depreciation	$ (12,571)			(12,571)
Date of construction	1986
Date acquired	Nov-94
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 18,110
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,571)
Unencumbered Apartment Communities | Sammamish View | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Sammamish View | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | 101 San Fernando
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	323
Initial cost
Land				4,173
Buildings and improvements				58,961
Costs capitalized subsequent to acquisition				13,374
Gross amount carried at close of period
Land and improvements				4,173
Buildings and improvements				72,335
Total	$ 76,508			76,508
Accumulated depreciation	$ (26,862)			(26,862)
Date of construction	2001
Date acquired	Jul-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 76,508
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (26,862)
Unencumbered Apartment Communities | 101 San Fernando | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | 101 San Fernando | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | San Marcos
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	432
Initial cost
Land				15,563
Buildings and improvements				36,204
Costs capitalized subsequent to acquisition				33,430
Gross amount carried at close of period
Land and improvements				22,866
Buildings and improvements				62,331
Total	$ 85,197			85,197
Accumulated depreciation	$ (33,909)			(33,909)
Date of construction	2003
Date acquired	Nov-03
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 85,197
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (33,909)
Unencumbered Apartment Communities | San Marcos | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | San Marcos | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Santee Court/Santee Village
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	238
Initial cost
Land				9,581
Buildings and improvements				40,317
Costs capitalized subsequent to acquisition				11,607
Gross amount carried at close of period
Land and improvements				9,582
Buildings and improvements				51,923
Total	$ 61,505			61,505
Accumulated depreciation	$ (17,070)			(17,070)
Date of construction	2004
Date acquired	Oct-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 61,505
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (17,070)
Unencumbered Apartment Communities | Santee Court/Santee Village | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Santee Court/Santee Village | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Shadow Point
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	172
Initial cost
Land				2,812
Buildings and improvements				11,170
Costs capitalized subsequent to acquisition				4,305
Gross amount carried at close of period
Land and improvements				2,820
Buildings and improvements				15,467
Total	$ 18,287			18,287
Accumulated depreciation	$ (8,864)			(8,864)
Date of construction	1983
Date acquired	Dec-02
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 18,287
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (8,864)
Unencumbered Apartment Communities | Shadow Point | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Shadow Point | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Shadowbrook
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	418
Initial cost
Land				19,292
Buildings and improvements				77,168
Costs capitalized subsequent to acquisition				5,704
Gross amount carried at close of period
Land and improvements				19,292
Buildings and improvements				82,872
Total	$ 102,164			102,164
Accumulated depreciation	$ (18,117)			(18,117)
Date of construction	1986
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 102,164
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (18,117)
Unencumbered Apartment Communities | Shadowbrook | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Shadowbrook | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Slater 116
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	108
Initial cost
Land				7,379
Buildings and improvements				22,138
Costs capitalized subsequent to acquisition				1,194
Gross amount carried at close of period
Land and improvements				7,379
Buildings and improvements				23,332
Total	$ 30,711			30,711
Accumulated depreciation	$ (5,181)			(5,181)
Date of construction	2013
Date acquired	Sep-13
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 30,711
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (5,181)
Unencumbered Apartment Communities | Slater 116 | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Slater 116 | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Solstice
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	280
Initial cost
Land				34,444
Buildings and improvements				147,262
Costs capitalized subsequent to acquisition				6,544
Gross amount carried at close of period
Land and improvements				34,444
Buildings and improvements				153,806
Total	$ 188,250			188,250
Accumulated depreciation	$ (36,993)			(36,993)
Date of construction	2014
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 188,250
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (36,993)
Unencumbered Apartment Communities | Solstice | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Solstice | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Station Park Green - Phase I
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	121
Initial cost
Land				14,923
Buildings and improvements				96,229
Costs capitalized subsequent to acquisition				5,610
Gross amount carried at close of period
Land and improvements				14,924
Buildings and improvements				101,838
Total	$ 116,762			116,762
Accumulated depreciation	$ (8,241)			(8,241)
Date of construction	2018
Date acquired	Mar-18
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 116,762
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (8,241)
Unencumbered Apartment Communities | Station Park Green - Phase I | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Station Park Green - Phase I | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Stevenson Place
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	200
Initial cost
Land				996
Buildings and improvements				5,582
Costs capitalized subsequent to acquisition				13,651
Gross amount carried at close of period
Land and improvements				1,001
Buildings and improvements				19,228
Total	$ 20,229			20,229
Accumulated depreciation	$ (14,432)			(14,432)
Date of construction	1975
Date acquired	Apr-00
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 20,229
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,432)
Unencumbered Apartment Communities | Stevenson Place | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Stevenson Place | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Stonehedge Village
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	196
Initial cost
Land				3,167
Buildings and improvements				12,603
Costs capitalized subsequent to acquisition				8,669
Gross amount carried at close of period
Land and improvements				3,201
Buildings and improvements				21,238
Total	$ 24,439			24,439
Accumulated depreciation	$ (14,829)			(14,829)
Date of construction	1986
Date acquired	Oct-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 24,439
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,829)
Unencumbered Apartment Communities | Stonehedge Village | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Stonehedge Village | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Summerhill Park
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	100
Initial cost
Land				2,654
Buildings and improvements				4,918
Costs capitalized subsequent to acquisition				11,180
Gross amount carried at close of period
Land and improvements				2,656
Buildings and improvements				16,096
Total	$ 18,752			18,752
Accumulated depreciation	$ (11,728)			(11,728)
Date of construction	1988
Date acquired	Sep-88
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 18,752
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (11,728)
Unencumbered Apartment Communities | Summerhill Park | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Summerhill Park | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Summit Park
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	300
Initial cost
Land				5,959
Buildings and improvements				23,670
Costs capitalized subsequent to acquisition				8,485
Gross amount carried at close of period
Land and improvements				5,977
Buildings and improvements				32,137
Total	$ 38,114			38,114
Accumulated depreciation	$ (18,375)			(18,375)
Date of construction	1972
Date acquired	Dec-02
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 38,114
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (18,375)
Unencumbered Apartment Communities | Summit Park | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Summit Park | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Taylor 28
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	197
Initial cost
Land				13,915
Buildings and improvements				57,700
Costs capitalized subsequent to acquisition				3,391
Gross amount carried at close of period
Land and improvements				13,915
Buildings and improvements				61,091
Total	$ 75,006			75,006
Accumulated depreciation	$ (13,005)			(13,005)
Date of construction	2008
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 75,006
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,005)
Unencumbered Apartment Communities | Taylor 28 | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Taylor 28 | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Audrey at Belltown
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	137
Initial cost
Land				9,228
Buildings and improvements				36,911
Costs capitalized subsequent to acquisition				1,290
Gross amount carried at close of period
Land and improvements				9,228
Buildings and improvements				38,201
Total	$ 47,429			47,429
Accumulated depreciation	$ (8,013)			(8,013)
Date of construction	1992
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 47,429
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (8,013)
Unencumbered Apartment Communities | The Audrey at Belltown | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | The Audrey at Belltown | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Avery
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	121
Initial cost
Land				6,964
Buildings and improvements				29,922
Costs capitalized subsequent to acquisition				726
Gross amount carried at close of period
Land and improvements				6,964
Buildings and improvements				30,648
Total	$ 37,612			37,612
Accumulated depreciation	$ (5,957)			(5,957)
Date of construction	2014
Date acquired	Mar-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 37,612
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (5,957)
Unencumbered Apartment Communities | The Avery | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Avery | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Bernard
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	63
Initial cost
Land				3,699
Buildings and improvements				11,345
Costs capitalized subsequent to acquisition				800
Gross amount carried at close of period
Land and improvements				3,689
Buildings and improvements				12,155
Total	$ 15,844			15,844
Accumulated depreciation	$ (3,574)			(3,574)
Date of construction	2008
Date acquired	Sep-11
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 15,844
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (3,574)
Unencumbered Apartment Communities | The Bernard | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Bernard | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Blake LA
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	196
Initial cost
Land				4,023
Buildings and improvements				9,527
Costs capitalized subsequent to acquisition				22,158
Gross amount carried at close of period
Land and improvements				4,031
Buildings and improvements				31,677
Total	$ 35,708			35,708
Accumulated depreciation	$ (18,135)			(18,135)
Date of construction	1979
Date acquired	Jun-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 35,708
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (18,135)
Unencumbered Apartment Communities | The Blake LA | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Blake LA | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Cairns
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	99
Initial cost
Land				6,937
Buildings and improvements				20,679
Costs capitalized subsequent to acquisition				2,389
Gross amount carried at close of period
Land and improvements				6,939
Buildings and improvements				23,066
Total	$ 30,005			30,005
Accumulated depreciation	$ (9,915)			(9,915)
Date of construction	2006
Date acquired	Jun-07
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 30,005
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (9,915)
Unencumbered Apartment Communities | The Cairns | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Cairns | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Commons
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	264
Initial cost
Land				12,555
Buildings and improvements				29,307
Costs capitalized subsequent to acquisition				9,206
Gross amount carried at close of period
Land and improvements				12,556
Buildings and improvements				38,512
Total	$ 51,068			51,068
Accumulated depreciation	$ (14,792)			(14,792)
Date of construction	1973
Date acquired	Jul-10
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 51,068
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,792)
Unencumbered Apartment Communities | The Commons | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Commons | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Elliot at Mukilteo
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	301
Initial cost
Land				2,498
Buildings and improvements				10,595
Costs capitalized subsequent to acquisition				17,699
Gross amount carried at close of period
Land and improvements				2,824
Buildings and improvements				27,968
Total	$ 30,792			30,792
Accumulated depreciation	$ (21,381)			(21,381)
Date of construction	1981
Date acquired	Jan-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 30,792
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (21,381)
Unencumbered Apartment Communities | The Elliot at Mukilteo | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Elliot at Mukilteo | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Grand
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	243
Initial cost
Land				4,531
Buildings and improvements				89,208
Costs capitalized subsequent to acquisition				7,334
Gross amount carried at close of period
Land and improvements				4,531
Buildings and improvements				96,542
Total	$ 101,073			101,073
Accumulated depreciation	$ (37,589)			(37,589)
Date of construction	2009
Date acquired	Jan-09
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 101,073
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (37,589)
Unencumbered Apartment Communities | The Grand | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Grand | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Hallie
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	292
Initial cost
Land				2,202
Buildings and improvements				4,794
Costs capitalized subsequent to acquisition				54,674
Gross amount carried at close of period
Land and improvements				8,385
Buildings and improvements				53,285
Total	$ 61,670			61,670
Accumulated depreciation	$ (35,599)			(35,599)
Date of construction	1972
Date acquired	Apr-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 61,670
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (35,599)
Unencumbered Apartment Communities | The Hallie | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Hallie | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Huntington
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	276
Initial cost
Land				10,374
Buildings and improvements				41,495
Costs capitalized subsequent to acquisition				5,741
Gross amount carried at close of period
Land and improvements				10,374
Buildings and improvements				47,236
Total	$ 57,610			57,610
Accumulated depreciation	$ (13,725)			(13,725)
Date of construction	1975
Date acquired	Jun-12
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 57,610
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,725)
Unencumbered Apartment Communities | The Huntington | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Huntington | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Landing at Jack London Square
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	282
Initial cost
Land				33,554
Buildings and improvements				78,292
Costs capitalized subsequent to acquisition				6,329
Gross amount carried at close of period
Land and improvements				33,554
Buildings and improvements				84,621
Total	$ 118,175			118,175
Accumulated depreciation	$ (19,726)			(19,726)
Date of construction	2001
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 118,175
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (19,726)
Unencumbered Apartment Communities | The Landing at Jack London Square | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | The Landing at Jack London Square | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Lofts at Pinehurst
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	118
Initial cost
Land				1,570
Buildings and improvements				3,912
Costs capitalized subsequent to acquisition				5,499
Gross amount carried at close of period
Land and improvements				1,618
Buildings and improvements				9,363
Total	$ 10,981			10,981
Accumulated depreciation	$ (6,164)			(6,164)
Date of construction	1971
Date acquired	Jun-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 10,981
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (6,164)
Unencumbered Apartment Communities | The Lofts at Pinehurst | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Lofts at Pinehurst | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Palisades
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	192
Initial cost
Land				1,560
Buildings and improvements				6,242
Costs capitalized subsequent to acquisition				13,743
Gross amount carried at close of period
Land and improvements				1,565
Buildings and improvements				19,980
Total	$ 21,545			21,545
Accumulated depreciation	$ (17,648)			(17,648)
Date of construction	1977
Date acquired	May-90
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 21,545
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (17,648)
Unencumbered Apartment Communities | The Palisades | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | The Palisades | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Palms at Laguna Niguel
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	460
Initial cost
Land				23,584
Buildings and improvements				94,334
Costs capitalized subsequent to acquisition				9,442
Gross amount carried at close of period
Land and improvements				23,584
Buildings and improvements				103,776
Total	$ 127,360			127,360
Accumulated depreciation	$ (23,149)			(23,149)
Date of construction	1988
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 127,360
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (23,149)
Unencumbered Apartment Communities | The Palms at Laguna Niguel | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | The Palms at Laguna Niguel | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Stuart
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	188
Initial cost
Land				13,574
Buildings and improvements				54,298
Costs capitalized subsequent to acquisition				2,693
Gross amount carried at close of period
Land and improvements				13,574
Buildings and improvements				56,991
Total	$ 70,565			70,565
Accumulated depreciation	$ (12,753)			(12,753)
Date of construction	2007
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 70,565
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,753)
Unencumbered Apartment Communities | The Stuart | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | The Stuart | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | The Trails of Redmond
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	423
Initial cost
Land				21,930
Buildings and improvements				87,720
Costs capitalized subsequent to acquisition				5,406
Gross amount carried at close of period
Land and improvements				21,930
Buildings and improvements				93,126
Total	$ 115,056			115,056
Accumulated depreciation	$ (20,366)			(20,366)
Date of construction	1985
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 115,056
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (20,366)
Unencumbered Apartment Communities | The Trails of Redmond | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | The Trails of Redmond | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Tierra Vista
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	404
Initial cost
Land				13,652
Buildings and improvements				53,336
Costs capitalized subsequent to acquisition				6,023
Gross amount carried at close of period
Land and improvements				13,661
Buildings and improvements				59,350
Total	$ 73,011			73,011
Accumulated depreciation	$ (32,123)			(32,123)
Date of construction	2001
Date acquired	Jan-01
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 73,011
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (32,123)
Unencumbered Apartment Communities | Tierra Vista | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Tierra Vista | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Tiffany Court
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	101
Initial cost
Land				6,949
Buildings and improvements				27,796
Costs capitalized subsequent to acquisition				1,857
Gross amount carried at close of period
Land and improvements				6,949
Buildings and improvements				29,653
Total	$ 36,602			36,602
Accumulated depreciation	$ (6,429)			(6,429)
Date of construction	1987
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 36,602
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (6,429)
Unencumbered Apartment Communities | Tiffany Court | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Tiffany Court | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Trabucco Villas
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	132
Initial cost
Land				3,638
Buildings and improvements				8,640
Costs capitalized subsequent to acquisition				4,061
Gross amount carried at close of period
Land and improvements				3,890
Buildings and improvements				12,449
Total	$ 16,339			16,339
Accumulated depreciation	$ (8,740)			(8,740)
Date of construction	1985
Date acquired	Oct-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 16,339
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (8,740)
Unencumbered Apartment Communities | Trabucco Villas | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Trabucco Villas | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Via
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	284
Initial cost
Land				22,000
Buildings and improvements				82,270
Costs capitalized subsequent to acquisition				3,189
Gross amount carried at close of period
Land and improvements				22,016
Buildings and improvements				85,443
Total	$ 107,459			107,459
Accumulated depreciation	$ (27,803)			(27,803)
Date of construction	2011
Date acquired	Jul-11
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 107,459
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (27,803)
Unencumbered Apartment Communities | Via | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Via | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Villa Granada
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	270
Initial cost
Land				38,299
Buildings and improvements				89,365
Costs capitalized subsequent to acquisition				2,200
Gross amount carried at close of period
Land and improvements				38,299
Buildings and improvements				91,565
Total	$ 129,864			129,864
Accumulated depreciation	$ (19,559)			(19,559)
Date of construction	2010
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 129,864
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (19,559)
Unencumbered Apartment Communities | Villa Granada | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Villa Granada | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Villa Siena
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	272
Initial cost
Land				13,842
Buildings and improvements				55,367
Costs capitalized subsequent to acquisition				8,399
Gross amount carried at close of period
Land and improvements				13,842
Buildings and improvements				63,766
Total	$ 77,608			77,608
Accumulated depreciation	$ (14,671)			(14,671)
Date of construction	1974
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 77,608
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,671)
Unencumbered Apartment Communities | Villa Siena | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Villa Siena | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Village Green
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	272
Initial cost
Land				6,488
Buildings and improvements				36,768
Costs capitalized subsequent to acquisition				4,061
Gross amount carried at close of period
Land and improvements				6,488
Buildings and improvements				40,829
Total	$ 47,317			47,317
Accumulated depreciation	$ (9,428)			(9,428)
Date of construction	1971
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 47,317
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (9,428)
Unencumbered Apartment Communities | Village Green | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Village Green | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Vista Belvedere
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	76
Initial cost
Land				5,573
Buildings and improvements				11,901
Costs capitalized subsequent to acquisition				8,844
Gross amount carried at close of period
Land and improvements				5,573
Buildings and improvements				20,745
Total	$ 26,318			26,318
Accumulated depreciation	$ (12,068)			(12,068)
Date of construction	1963
Date acquired	Aug-04
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 26,318
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (12,068)
Unencumbered Apartment Communities | Vista Belvedere | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Vista Belvedere | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Vox Apartments
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	58
Initial cost
Land				5,545
Buildings and improvements				16,635
Costs capitalized subsequent to acquisition				408
Gross amount carried at close of period
Land and improvements				5,545
Buildings and improvements				17,043
Total	$ 22,588			22,588
Accumulated depreciation	$ (3,543)			(3,543)
Date of construction	2013
Date acquired	Oct-13
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 22,588
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (3,543)
Unencumbered Apartment Communities | Vox Apartments | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Vox Apartments | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Walnut Heights
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	163
Initial cost
Land				4,858
Buildings and improvements				19,168
Costs capitalized subsequent to acquisition				5,645
Gross amount carried at close of period
Land and improvements				4,887
Buildings and improvements				24,784
Total	$ 29,671			29,671
Accumulated depreciation	$ (13,726)			(13,726)
Date of construction	1964
Date acquired	Oct-03
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 29,671
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,726)
Unencumbered Apartment Communities | Walnut Heights | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Walnut Heights | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Wandering Creek
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	156
Initial cost
Land				1,285
Buildings and improvements				4,980
Costs capitalized subsequent to acquisition				5,152
Gross amount carried at close of period
Land and improvements				1,296
Buildings and improvements				10,121
Total	$ 11,417			11,417
Accumulated depreciation	$ (7,945)			(7,945)
Date of construction	1986
Date acquired	Nov-95
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 11,417
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (7,945)
Unencumbered Apartment Communities | Wandering Creek | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Wandering Creek | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Wharfside Pointe
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	155
Initial cost
Land				2,245
Buildings and improvements				7,020
Costs capitalized subsequent to acquisition				12,465
Gross amount carried at close of period
Land and improvements				2,258
Buildings and improvements				19,472
Total	$ 21,730			21,730
Accumulated depreciation	$ (14,892)			(14,892)
Date of construction	1990
Date acquired	Jun-94
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 21,730
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (14,892)
Unencumbered Apartment Communities | Wharfside Pointe | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Wharfside Pointe | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Willow Lake
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	508
Initial cost
Land				43,194
Buildings and improvements				101,030
Costs capitalized subsequent to acquisition				15,998
Gross amount carried at close of period
Land and improvements				43,194
Buildings and improvements				117,028
Total	$ 160,222			160,222
Accumulated depreciation	$ (32,271)			(32,271)
Date of construction	1989
Date acquired	Oct-12
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 160,222
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (32,271)
Unencumbered Apartment Communities | Willow Lake | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Willow Lake | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | 5600 Wilshire
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	284
Initial cost
Land				30,535
Buildings and improvements				91,604
Costs capitalized subsequent to acquisition				4,495
Gross amount carried at close of period
Land and improvements				30,535
Buildings and improvements				96,099
Total	$ 126,634			126,634
Accumulated depreciation	$ (20,175)			(20,175)
Date of construction	2008
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 126,634
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (20,175)
Unencumbered Apartment Communities | 5600 Wilshire | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | 5600 Wilshire | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Wilshire La Brea
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	478
Initial cost
Land				56,932
Buildings and improvements				211,998
Costs capitalized subsequent to acquisition				11,252
Gross amount carried at close of period
Land and improvements				56,932
Buildings and improvements				223,250
Total	$ 280,182			280,182
Accumulated depreciation	$ (52,822)			(52,822)
Date of construction	2014
Date acquired	Apr-14
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 280,182
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (52,822)
Unencumbered Apartment Communities | Wilshire La Brea | Minimum
Gross amount carried at close of period
Life used for depreciation	5 years
Unencumbered Apartment Communities | Wilshire La Brea | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Wilshire Promenade
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	149
Initial cost
Land				3,118
Buildings and improvements				7,385
Costs capitalized subsequent to acquisition				10,727
Gross amount carried at close of period
Land and improvements				3,797
Buildings and improvements				17,433
Total	$ 21,230			21,230
Accumulated depreciation	$ (11,640)			(11,640)
Date of construction	1992
Date acquired	Jan-97
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 21,230
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (11,640)
Unencumbered Apartment Communities | Wilshire Promenade | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Wilshire Promenade | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Windsor Ridge
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	216
Initial cost
Land				4,017
Buildings and improvements				10,315
Costs capitalized subsequent to acquisition				16,759
Gross amount carried at close of period
Land and improvements				4,021
Buildings and improvements				27,070
Total	$ 31,091			31,091
Accumulated depreciation	$ (22,682)			(22,682)
Date of construction	1989
Date acquired	Mar-89
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 31,091
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (22,682)
Unencumbered Apartment Communities | Windsor Ridge | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Windsor Ridge | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Woodland Commons
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	302
Initial cost
Land				2,040
Buildings and improvements				8,727
Costs capitalized subsequent to acquisition				24,610
Gross amount carried at close of period
Land and improvements				2,044
Buildings and improvements				33,333
Total	$ 35,377			35,377
Accumulated depreciation	$ (22,838)			(22,838)
Date of construction	1978
Date acquired	Mar-90
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 35,377
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (22,838)
Unencumbered Apartment Communities | Woodland Commons | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Woodland Commons | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Unencumbered Apartment Communities | Woodside Village
Real Estate and Accumulated Depreciation [Line Items]
Units | apartment	145
Initial cost
Land				5,331
Buildings and improvements				21,036
Costs capitalized subsequent to acquisition				5,387
Gross amount carried at close of period
Land and improvements				5,341
Buildings and improvements				26,413
Total	$ 31,754			31,754
Accumulated depreciation	$ (13,691)			$ (13,691)
Date of construction	1987
Date acquired	Dec-04
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	$ 31,754
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	$ (13,691)
Unencumbered Apartment Communities | Woodside Village | Minimum
Gross amount carried at close of period
Life used for depreciation	3 years
Unencumbered Apartment Communities | Woodside Village | Maximum
Gross amount carried at close of period
Life used for depreciation	30 years
Other Property
Real Estate and Accumulated Depreciation [Line Items]
Area of real estate property | ft²
Initial cost
Land				$ 3,079
Buildings and improvements				12,315
Costs capitalized subsequent to acquisition				12,183
Gross amount carried at close of period
Land and improvements				3,909
Buildings and improvements				23,668
Total	$ 27,577			27,577
Accumulated depreciation	(15,356)			(15,356)
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	27,577
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	(15,356)
Other Property | Other real estate assets
Initial cost
Land				3,079
Buildings and improvements				12,315
Costs capitalized subsequent to acquisition				12,183
Gross amount carried at close of period
Land and improvements				3,909
Buildings and improvements				23,668
Total	27,577			27,577
Accumulated depreciation	(15,356)			(15,356)
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of year	27,577
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of year	(15,356)
Real Estate Rental Property
Gross amount carried at close of period
Total	13,366,101	13,366,101	12,687,722	$ 14,038,142
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at beginning of year	13,366,101	13,362,073	12,687,722
Balance at the end of year	$ 14,038,142	$ 13,366,101	$ 13,362,073