SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($) apartmentCommunity	Dec. 31, 2022 USD ($)
Gross amount at which carries at close of period [Abstract]
Total	$ 2,480,741	$ 2,420,146	$ 2,534,124
Accumulated Depreciation	(625,980)	(530,703)	(535,401)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at beginning of year	2,420,146	2,534,124	2,271,170
Multifamily and Other	40,210	87,757	206,623
Improvements and Other	49,900	62,117	57,203
Total additions including opening balance	2,510,256	2,683,998	2,534,996
Cost of real estate sold	(21,236)	(243,889)	0
Impairment charge	0	(5,218)	0
Other	(8,279)	(14,745)	(872)
Balance at close of year	2,480,741	2,420,146	2,534,124
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance at beginning of year	530,703	535,401	443,592
Additions during year
Provisions for depreciation	103,127	98,691	92,056
Deductions during year
Accumulated depreciation on real estate sold or classified as held for sale	(2,350)	(92,239)	0
Other	(5,500)	(11,150)	(247)
Balance at close of year	625,980	530,703	535,401
Total real estate investments, excluding mortgage notes receivable	1,854,761	$ 1,889,443	$ 1,998,723
Number of apartment communities impaired during year | apartmentCommunity		2
Net basis of real estate investments for federal income tax purposes	1,400,000	$ 1,400,000
Multi Family Same-Store
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	532,032
Initial Cost to Company
Land	188,308
Buildings & Improvements	1,855,791
Costs capitalized subsequent to acquisition	289,819
Gross amount at which carries at close of period [Abstract]
Land	200,389
Buildings & Improvements	2,133,529
Total	2,333,918
Accumulated Depreciation	(616,574)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	2,333,918
Deductions during year
Balance at close of year	616,574
Multi Family Same-Store | 71 France - Edina, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	48,371
Initial Cost to Company
Land	4,721
Buildings & Improvements	61,762
Costs capitalized subsequent to acquisition	2,274
Gross amount at which carries at close of period [Abstract]
Land	4,801
Buildings & Improvements	63,956
Total	68,757
Accumulated Depreciation	(23,424)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	68,757
Deductions during year
Balance at close of year	$ 23,424
Multi Family Same-Store | 71 France - Edina, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Alps Park Apartments - Rapid City, SD
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	287
Buildings & Improvements	5,551
Costs capitalized subsequent to acquisition	605
Gross amount at which carries at close of period [Abstract]
Land	336
Buildings & Improvements	6,107
Total	6,443
Accumulated Depreciation	(2,302)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	6,443
Deductions during year
Balance at close of year	$ 2,302
Multi Family Same-Store | Alps Park Apartments - Rapid City, SD | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Arcata Apartments - Golden Valley, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	2,088
Buildings & Improvements	31,036
Costs capitalized subsequent to acquisition	1,088
Gross amount at which carries at close of period [Abstract]
Land	2,128
Buildings & Improvements	32,084
Total	34,212
Accumulated Depreciation	(12,789)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	34,212
Deductions during year
Balance at close of year	$ 12,789
Multi Family Same-Store | Arcata Apartments - Golden Valley, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Ashland Apartment Homes - Grand Forks, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	741
Buildings & Improvements	7,569
Costs capitalized subsequent to acquisition	373
Gross amount at which carries at close of period [Abstract]
Land	824
Buildings & Improvements	7,859
Total	8,683
Accumulated Depreciation	(3,401)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	8,683
Deductions during year
Balance at close of year	$ 3,401
Multi Family Same-Store | Ashland Apartment Homes - Grand Forks, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Avalon Cove Townhomes - Rochester, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	1,616
Buildings & Improvements	34,074
Costs capitalized subsequent to acquisition	5,612
Gross amount at which carries at close of period [Abstract]
Land	1,808
Buildings & Improvements	39,494
Total	41,302
Accumulated Depreciation	(12,204)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	41,302
Deductions during year
Balance at close of year	$ 12,204
Multi Family Same-Store | Avalon Cove Townhomes - Rochester, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Bayberry Place - Eagan, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 11,048
Initial Cost to Company
Land	1,807
Buildings & Improvements	14,113
Costs capitalized subsequent to acquisition	1,681
Gross amount at which carries at close of period [Abstract]
Land	1,865
Buildings & Improvements	15,736
Total	17,601
Accumulated Depreciation	$ (2,004)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 17,601
Deductions during year
Balance at close of year	2,004
Multi Family Same-Store | Burgundy & Hillsboro - New Hope, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	23,570
Initial Cost to Company
Land	2,834
Buildings & Improvements	31,149
Costs capitalized subsequent to acquisition	2,833
Gross amount at which carries at close of period [Abstract]
Land	2,913
Buildings & Improvements	33,903
Total	36,816
Accumulated Depreciation	$ (4,508)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 36,816
Deductions during year
Balance at close of year	4,508
Multi Family Same-Store | Canyon Lake Apartments - Rapid City, SD
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	305
Buildings & Improvements	3,958
Costs capitalized subsequent to acquisition	2,308
Gross amount at which carries at close of period [Abstract]
Land	420
Buildings & Improvements	6,151
Total	6,571
Accumulated Depreciation	(3,870)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	6,571
Deductions during year
Balance at close of year	$ 3,870
Multi Family Same-Store | Canyon Lake Apartments - Rapid City, SD | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Cardinal Point Apartments - Grand Forks, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	1,600
Buildings & Improvements	33,400
Costs capitalized subsequent to acquisition	619
Gross amount at which carries at close of period [Abstract]
Land	1,729
Buildings & Improvements	33,890
Total	35,619
Accumulated Depreciation	(7,573)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	35,619
Deductions during year
Balance at close of year	$ 7,573
Multi Family Same-Store | Cardinal Point Apartments - Grand Forks, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Cascade Shores Townhomes + Flats - Rochester, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 42,522
Initial Cost to Company
Land	6,588
Buildings & Improvements	67,072
Costs capitalized subsequent to acquisition	11,491
Gross amount at which carries at close of period [Abstract]
Land	6,776
Buildings & Improvements	78,375
Total	85,151
Accumulated Depreciation	(27,993)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	85,151
Deductions during year
Balance at close of year	$ 27,993
Multi Family Same-Store | Cascade Shores Townhomes + Flats - Rochester, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Castlerock Apartment Homes - Billings, MT
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	736
Buildings & Improvements	4,864
Costs capitalized subsequent to acquisition	1,999
Gross amount at which carries at close of period [Abstract]
Land	1,069
Buildings & Improvements	6,530
Total	7,599
Accumulated Depreciation	(4,881)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	7,599
Deductions during year
Balance at close of year	$ 4,881
Multi Family Same-Store | Castlerock Apartment Homes - Billings, MT | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Civic Lofts - Denver, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	6,166
Buildings & Improvements	55,182
Costs capitalized subsequent to acquisition	1,195
Gross amount at which carries at close of period [Abstract]
Land	6,171
Buildings & Improvements	56,372
Total	62,543
Accumulated Depreciation	$ (6,818)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 62,543
Deductions during year
Balance at close of year	6,818
Multi Family Same-Store | Connelly on Eleven - Burnsville, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	2,401
Buildings & Improvements	11,515
Costs capitalized subsequent to acquisition	15,572
Gross amount at which carries at close of period [Abstract]
Land	3,206
Buildings & Improvements	26,282
Total	29,488
Accumulated Depreciation	(18,685)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	29,488
Deductions during year
Balance at close of year	$ 18,685
Multi Family Same-Store | Connelly on Eleven - Burnsville, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Cottonwood Apartment Homes - Bismarck, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	1,056
Buildings & Improvements	17,372
Costs capitalized subsequent to acquisition	7,052
Gross amount at which carries at close of period [Abstract]
Land	2,002
Buildings & Improvements	23,478
Total	25,480
Accumulated Depreciation	(14,904)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	25,480
Deductions during year
Balance at close of year	$ 14,904
Multi Family Same-Store | Cottonwood Apartment Homes - Bismarck, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Country Meadows Apartment Homes - Billings, MT
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	491
Buildings & Improvements	7,809
Costs capitalized subsequent to acquisition	1,527
Gross amount at which carries at close of period [Abstract]
Land	612
Buildings & Improvements	9,215
Total	9,827
Accumulated Depreciation	(6,367)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	9,827
Deductions during year
Balance at close of year	$ 6,367
Multi Family Same-Store | Country Meadows Apartment Homes - Billings, MT | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Cypress Court Apartments - St. Cloud, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 10,359
Initial Cost to Company
Land	1,583
Buildings & Improvements	18,879
Costs capitalized subsequent to acquisition	1,164
Gross amount at which carries at close of period [Abstract]
Land	1,625
Buildings & Improvements	20,001
Total	21,626
Accumulated Depreciation	(7,737)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	21,626
Deductions during year
Balance at close of year	$ 7,737
Multi Family Same-Store | Cypress Court Apartments - St. Cloud, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Deer Ridge Apartment Homes - Jamestown, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	711
Buildings & Improvements	24,129
Costs capitalized subsequent to acquisition	840
Gross amount at which carries at close of period [Abstract]
Land	790
Buildings & Improvements	24,890
Total	25,680
Accumulated Depreciation	(9,782)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	25,680
Deductions during year
Balance at close of year	$ 9,782
Multi Family Same-Store | Deer Ridge Apartment Homes - Jamestown, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Donovan Apartment Homes - Lincoln, NE
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	1,515
Buildings & Improvements	15,730
Costs capitalized subsequent to acquisition	10,350
Gross amount at which carries at close of period [Abstract]
Land	1,817
Buildings & Improvements	25,778
Total	27,595
Accumulated Depreciation	(10,837)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	27,595
Deductions during year
Balance at close of year	$ 10,837
Multi Family Same-Store | Donovan Apartment Homes - Lincoln, NE | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Dylan at RiNo - Denver, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	12,155
Buildings & Improvements	77,215
Costs capitalized subsequent to acquisition	1,699
Gross amount at which carries at close of period [Abstract]
Land	12,241
Buildings & Improvements	78,828
Total	91,069
Accumulated Depreciation	$ (19,023)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 91,069
Deductions during year
Balance at close of year	19,023
Multi Family Same-Store | Elements of Linden Hills - Minneapolis, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	5,676
Initial Cost to Company
Land	941
Buildings & Improvements	7,853
Costs capitalized subsequent to acquisition	275
Gross amount at which carries at close of period [Abstract]
Land	949
Buildings & Improvements	8,120
Total	9,069
Accumulated Depreciation	$ (1,045)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 9,069
Deductions during year
Balance at close of year	1,045
Multi Family Same-Store | Evergreen Apartment Homes - Isanti, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	1,129
Buildings & Improvements	5,524
Costs capitalized subsequent to acquisition	761
Gross amount at which carries at close of period [Abstract]
Land	1,159
Buildings & Improvements	6,255
Total	7,414
Accumulated Depreciation	(2,953)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	7,414
Deductions during year
Balance at close of year	$ 2,953
Multi Family Same-Store | Evergreen Apartment Homes - Isanti, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | FreightYard Townhomes & Flats - Minneapolis, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	1,889
Buildings & Improvements	23,616
Costs capitalized subsequent to acquisition	1,516
Gross amount at which carries at close of period [Abstract]
Land	1,745
Buildings & Improvements	25,276
Total	27,021
Accumulated Depreciation	$ (4,972)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 27,021
Deductions during year
Balance at close of year	4,972
Multi Family Same-Store | Gardens Apartments - Grand Forks, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	518
Buildings & Improvements	8,702
Costs capitalized subsequent to acquisition	179
Gross amount at which carries at close of period [Abstract]
Land	535
Buildings & Improvements	8,864
Total	9,399
Accumulated Depreciation	(3,105)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	9,399
Deductions during year
Balance at close of year	$ 3,105
Multi Family Same-Store | Gardens Apartments - Grand Forks, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Grand Gateway Apartment Homes - St. Cloud, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	814
Buildings & Improvements	7,086
Costs capitalized subsequent to acquisition	4,229
Gross amount at which carries at close of period [Abstract]
Land	970
Buildings & Improvements	11,159
Total	12,129
Accumulated Depreciation	(4,862)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	12,129
Deductions during year
Balance at close of year	$ 4,862
Multi Family Same-Store | Grand Gateway Apartment Homes - St. Cloud, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Greenfield - Omaha, NE
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	578
Buildings & Improvements	4,122
Costs capitalized subsequent to acquisition	3,605
Gross amount at which carries at close of period [Abstract]
Land	876
Buildings & Improvements	7,429
Total	8,305
Accumulated Depreciation	(4,207)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	8,305
Deductions during year
Balance at close of year	$ 4,207
Multi Family Same-Store | Greenfield - Omaha, NE | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Grove Ridge - Cottage Grove, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 7,992
Initial Cost to Company
Land	1,250
Buildings & Improvements	10,271
Costs capitalized subsequent to acquisition	3,461
Gross amount at which carries at close of period [Abstract]
Land	1,293
Buildings & Improvements	13,689
Total	14,982
Accumulated Depreciation	$ (1,659)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 14,982
Deductions during year
Balance at close of year	1,659
Multi Family Same-Store | Homestead Garden Apartments - Rapid City, SD
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	655
Buildings & Improvements	14,139
Costs capitalized subsequent to acquisition	2,836
Gross amount at which carries at close of period [Abstract]
Land	792
Buildings & Improvements	16,838
Total	17,630
Accumulated Depreciation	(5,679)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	17,630
Deductions during year
Balance at close of year	$ 5,679
Multi Family Same-Store | Homestead Garden Apartments - Rapid City, SD | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Ironwood - New Hope, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	2,165
Buildings & Improvements	36,874
Costs capitalized subsequent to acquisition	1,278
Gross amount at which carries at close of period [Abstract]
Land	2,167
Buildings & Improvements	38,150
Total	40,317
Accumulated Depreciation	$ (6,970)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 40,317
Deductions during year
Balance at close of year	6,970
Multi Family Same-Store | Lakeside Village Apartment Homes - Lincoln, NE
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	1,215
Buildings & Improvements	15,837
Costs capitalized subsequent to acquisition	7,437
Gross amount at which carries at close of period [Abstract]
Land	1,476
Buildings & Improvements	23,013
Total	24,489
Accumulated Depreciation	(9,447)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	24,489
Deductions during year
Balance at close of year	$ 9,447
Multi Family Same-Store | Lakeside Village Apartment Homes - Lincoln, NE | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Legacy Apartments - Grand Forks, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	1,362
Buildings & Improvements	21,727
Costs capitalized subsequent to acquisition	10,851
Gross amount at which carries at close of period [Abstract]
Land	2,475
Buildings & Improvements	31,465
Total	33,940
Accumulated Depreciation	(22,042)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	33,940
Deductions during year
Balance at close of year	$ 22,042
Multi Family Same-Store | Legacy Apartments - Grand Forks, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Legacy Heights Apartment Homes - Bismarck, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	1,207
Buildings & Improvements	13,742
Costs capitalized subsequent to acquisition	331
Gross amount at which carries at close of period [Abstract]
Land	1,142
Buildings & Improvements	14,138
Total	15,280
Accumulated Depreciation	(4,454)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	15,280
Deductions during year
Balance at close of year	$ 4,454
Multi Family Same-Store | Legacy Heights Apartment Homes - Bismarck, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Lugano at Cherry Creek - Denver, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	7,679
Buildings & Improvements	87,766
Costs capitalized subsequent to acquisition	9,722
Gross amount at which carries at close of period [Abstract]
Land	7,679
Buildings & Improvements	97,488
Total	105,167
Accumulated Depreciation	$ (20,144)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 105,167
Deductions during year
Balance at close of year	20,144
Multi Family Same-Store | Lyra Apartments - Centennial, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	37,809
Initial Cost to Company
Land	6,473
Buildings & Improvements	86,149
Costs capitalized subsequent to acquisition	1,166
Gross amount at which carries at close of period [Abstract]
Land	6,481
Buildings & Improvements	87,307
Total	93,788
Accumulated Depreciation	$ (7,972)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 93,788
Deductions during year
Balance at close of year	7,972
Multi Family Same-Store | Martin Blu - Eden Prairie, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	25,909
Initial Cost to Company
Land	3,547
Buildings & Improvements	45,212
Costs capitalized subsequent to acquisition	1,418
Gross amount at which carries at close of period [Abstract]
Land	3,560
Buildings & Improvements	46,617
Total	50,177
Accumulated Depreciation	$ (5,754)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 50,177
Deductions during year
Balance at close of year	5,754
Multi Family Same-Store | Meadows Apartments - Jamestown, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	590
Buildings & Improvements	4,519
Costs capitalized subsequent to acquisition	2,059
Gross amount at which carries at close of period [Abstract]
Land	733
Buildings & Improvements	6,435
Total	7,168
Accumulated Depreciation	(4,340)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	7,168
Deductions during year
Balance at close of year	$ 4,340
Multi Family Same-Store | Meadows Apartments - Jamestown, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Monticello Crossings - Monticello, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	1,734
Buildings & Improvements	30,136
Costs capitalized subsequent to acquisition	1,385
Gross amount at which carries at close of period [Abstract]
Land	1,951
Buildings & Improvements	31,304
Total	33,255
Accumulated Depreciation	(9,351)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	33,255
Deductions during year
Balance at close of year	$ 9,351
Multi Family Same-Store | Monticello Crossings - Monticello, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Monticello Village - Monticello, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	490
Buildings & Improvements	3,756
Costs capitalized subsequent to acquisition	1,410
Gross amount at which carries at close of period [Abstract]
Land	655
Buildings & Improvements	5,001
Total	5,656
Accumulated Depreciation	(3,151)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	5,656
Deductions during year
Balance at close of year	$ 3,151
Multi Family Same-Store | Monticello Village - Monticello, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | New Hope Garden & Village - New Hope, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 9,943
Initial Cost to Company
Land	1,603
Buildings & Improvements	12,578
Costs capitalized subsequent to acquisition	1,631
Gross amount at which carries at close of period [Abstract]
Land	1,651
Buildings & Improvements	14,161
Total	15,812
Accumulated Depreciation	$ (2,132)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 15,812
Deductions during year
Balance at close of year	2,132
Multi Family Same-Store | Noko Apartments - Minneapolis, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	1,915
Buildings & Improvements	42,636
Costs capitalized subsequent to acquisition	622
Gross amount at which carries at close of period [Abstract]
Land	1,918
Buildings & Improvements	43,255
Total	45,173
Accumulated Depreciation	$ (5,152)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 45,173
Deductions during year
Balance at close of year	5,152
Multi Family Same-Store | Northridge Apartments - Bismarck, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	884
Buildings & Improvements	7,515
Costs capitalized subsequent to acquisition	306
Gross amount at which carries at close of period [Abstract]
Land	1,057
Buildings & Improvements	7,648
Total	8,705
Accumulated Depreciation	(2,689)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	8,705
Deductions during year
Balance at close of year	$ 2,689
Multi Family Same-Store | Northridge Apartments - Bismarck, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Olympic Village Apartments - Billings, MT
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	1,164
Buildings & Improvements	10,441
Costs capitalized subsequent to acquisition	4,216
Gross amount at which carries at close of period [Abstract]
Land	1,976
Buildings & Improvements	13,845
Total	15,821
Accumulated Depreciation	(9,478)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	15,821
Deductions during year
Balance at close of year	$ 9,478
Multi Family Same-Store | Olympic Village Apartments - Billings, MT | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Oxbo Urban Rentals - St Paul, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 15,760
Initial Cost to Company
Land	5,809
Buildings & Improvements	51,586
Costs capitalized subsequent to acquisition	971
Gross amount at which carries at close of period [Abstract]
Land	5,822
Buildings & Improvements	52,544
Total	58,366
Accumulated Depreciation	$ (13,293)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 58,366
Deductions during year
Balance at close of year	13,293
Multi Family Same-Store | Palisades - Roseville, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	19,723
Initial Cost to Company
Land	6,919
Buildings & Improvements	46,577
Costs capitalized subsequent to acquisition	12,115
Gross amount at which carries at close of period [Abstract]
Land	6,959
Buildings & Improvements	58,652
Total	65,611
Accumulated Depreciation	$ (6,646)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 65,611
Deductions during year
Balance at close of year	6,646
Multi Family Same-Store | Park Place Apartments - Plymouth, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	10,609
Buildings & Improvements	80,781
Costs capitalized subsequent to acquisition	21,392
Gross amount at which carries at close of period [Abstract]
Land	10,819
Buildings & Improvements	101,963
Total	112,782
Accumulated Depreciation	$ (31,841)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 112,782
Deductions during year
Balance at close of year	31,841
Multi Family Same-Store | Parkhouse Apartment Homes - Thornton, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	87,881
Initial Cost to Company
Land	10,474
Buildings & Improvements	132,105
Costs capitalized subsequent to acquisition	6,740
Gross amount at which carries at close of period [Abstract]
Land	10,484
Buildings & Improvements	138,835
Total	149,319
Accumulated Depreciation	$ (23,403)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 149,319
Deductions during year
Balance at close of year	23,403
Multi Family Same-Store | Plymouth Pointe - Plymouth, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	9,575
Initial Cost to Company
Land	1,042
Buildings & Improvements	12,810
Costs capitalized subsequent to acquisition	1,058
Gross amount at which carries at close of period [Abstract]
Land	1,073
Buildings & Improvements	13,837
Total	14,910
Accumulated Depreciation	$ (1,905)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 14,910
Deductions during year
Balance at close of year	1,905
Multi Family Same-Store | Pointe West Apartments - Rapid City, SD
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	240
Buildings & Improvements	3,538
Costs capitalized subsequent to acquisition	1,953
Gross amount at which carries at close of period [Abstract]
Land	463
Buildings & Improvements	5,268
Total	5,731
Accumulated Depreciation	(4,346)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	5,731
Deductions during year
Balance at close of year	$ 4,346
Multi Family Same-Store | Pointe West Apartments - Rapid City, SD | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Ponds at Heritage Place - Sartell, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	395
Buildings & Improvements	4,564
Costs capitalized subsequent to acquisition	619
Gross amount at which carries at close of period [Abstract]
Land	419
Buildings & Improvements	5,159
Total	5,578
Accumulated Depreciation	(2,206)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	5,578
Deductions during year
Balance at close of year	$ 2,206
Multi Family Same-Store | Ponds at Heritage Place - Sartell, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Prosper West - Waite Park, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 16,425
Initial Cost to Company
Land	939
Buildings & Improvements	10,167
Costs capitalized subsequent to acquisition	18,091
Gross amount at which carries at close of period [Abstract]
Land	1,912
Buildings & Improvements	27,285
Total	29,197
Accumulated Depreciation	(19,088)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	29,197
Deductions during year
Balance at close of year	$ 19,088
Multi Family Same-Store | Prosper West - Waite Park, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Quarry Ridge Apartments - Rochester, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	2,254
Buildings & Improvements	30,024
Costs capitalized subsequent to acquisition	9,967
Gross amount at which carries at close of period [Abstract]
Land	2,412
Buildings & Improvements	39,833
Total	42,245
Accumulated Depreciation	(18,450)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	42,245
Deductions during year
Balance at close of year	$ 18,450
Multi Family Same-Store | Quarry Ridge Apartments - Rochester, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Red 20 Apartments - Minneapolis, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 19,159
Initial Cost to Company
Land	1,900
Buildings & Improvements	24,116
Costs capitalized subsequent to acquisition	827
Gross amount at which carries at close of period [Abstract]
Land	1,908
Buildings & Improvements	24,935
Total	26,843
Accumulated Depreciation	(9,822)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	26,843
Deductions during year
Balance at close of year	$ 9,822
Multi Family Same-Store | Red 20 Apartments - Minneapolis, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Regency Park Estates - St. Cloud, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 6,405
Initial Cost to Company
Land	702
Buildings & Improvements	10,198
Costs capitalized subsequent to acquisition	8,565
Gross amount at which carries at close of period [Abstract]
Land	1,179
Buildings & Improvements	18,286
Total	19,465
Accumulated Depreciation	(8,899)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	19,465
Deductions during year
Balance at close of year	$ 8,899
Multi Family Same-Store | Regency Park Estates - St. Cloud, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Rimrock West Apartments - Billings, MT
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	330
Buildings & Improvements	3,489
Costs capitalized subsequent to acquisition	1,922
Gross amount at which carries at close of period [Abstract]
Land	573
Buildings & Improvements	5,168
Total	5,741
Accumulated Depreciation	(3,802)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	5,741
Deductions during year
Balance at close of year	$ 3,802
Multi Family Same-Store | Rimrock West Apartments - Billings, MT | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | River Pointe - Fridley, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 25,412
Initial Cost to Company
Land	3,346
Buildings & Improvements	33,118
Costs capitalized subsequent to acquisition	5,837
Gross amount at which carries at close of period [Abstract]
Land	3,426
Buildings & Improvements	38,875
Total	42,301
Accumulated Depreciation	$ (5,892)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 42,301
Deductions during year
Balance at close of year	5,892
Multi Family Same-Store | River Ridge Apartment Homes - Bismarck, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	576
Buildings & Improvements	24,670
Costs capitalized subsequent to acquisition	2,279
Gross amount at which carries at close of period [Abstract]
Land	936
Buildings & Improvements	26,589
Total	27,525
Accumulated Depreciation	(11,727)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	27,525
Deductions during year
Balance at close of year	$ 11,727
Multi Family Same-Store | River Ridge Apartment Homes - Bismarck, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Rocky Meadows Apartments - Billings, MT
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	656
Buildings & Improvements	5,726
Costs capitalized subsequent to acquisition	1,672
Gross amount at which carries at close of period [Abstract]
Land	868
Buildings & Improvements	7,186
Total	8,054
Accumulated Depreciation	(5,233)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	8,054
Deductions during year
Balance at close of year	$ 5,233
Multi Family Same-Store | Rocky Meadows Apartments - Billings, MT | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Rum River Apartments - Isanti, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	843
Buildings & Improvements	4,823
Costs capitalized subsequent to acquisition	548
Gross amount at which carries at close of period [Abstract]
Land	870
Buildings & Improvements	5,344
Total	6,214
Accumulated Depreciation	(2,877)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	6,214
Deductions during year
Balance at close of year	$ 2,877
Multi Family Same-Store | Rum River Apartments - Isanti, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Silver Springs Apartment Homes - Rapid City, SD
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	215
Buildings & Improvements	3,007
Costs capitalized subsequent to acquisition	1,093
Gross amount at which carries at close of period [Abstract]
Land	273
Buildings & Improvements	4,042
Total	4,315
Accumulated Depreciation	(1,557)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	4,315
Deductions during year
Balance at close of year	$ 1,557
Multi Family Same-Store | Silver Springs Apartment Homes - Rapid City, SD | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | SouthFork Townhomes + Flats - Lakeville, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 21,675
Initial Cost to Company
Land	3,502
Buildings & Improvements	40,153
Costs capitalized subsequent to acquisition	11,915
Gross amount at which carries at close of period [Abstract]
Land	3,583
Buildings & Improvements	51,987
Total	55,570
Accumulated Depreciation	$ (15,973)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 55,570
Deductions during year
Balance at close of year	15,973
Multi Family Same-Store | Southpoint Apartments - Grand Forks, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	576
Buildings & Improvements	9,893
Costs capitalized subsequent to acquisition	433
Gross amount at which carries at close of period [Abstract]
Land	666
Buildings & Improvements	10,236
Total	10,902
Accumulated Depreciation	(3,799)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	10,902
Deductions during year
Balance at close of year	$ 3,799
Multi Family Same-Store | Southpoint Apartments - Grand Forks, ND | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Sunset Trail Apartment Homes - Rochester, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	336
Buildings & Improvements	12,814
Costs capitalized subsequent to acquisition	6,840
Gross amount at which carries at close of period [Abstract]
Land	826
Buildings & Improvements	19,164
Total	19,990
Accumulated Depreciation	(11,246)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	19,990
Deductions during year
Balance at close of year	$ 11,246
Multi Family Same-Store | Sunset Trail Apartment Homes - Rochester, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | The Bosk - Woodbury, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 31,673
Initial Cost to Company
Land	5,367
Buildings & Improvements	40,422
Costs capitalized subsequent to acquisition	18,580
Gross amount at which carries at close of period [Abstract]
Land	5,449
Buildings & Improvements	58,920
Total	64,369
Accumulated Depreciation	$ (8,834)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 64,369
Deductions during year
Balance at close of year	8,834
Multi Family Same-Store | Union Pointe - Longmont, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	5,727
Buildings & Improvements	69,966
Costs capitalized subsequent to acquisition	1,341
Gross amount at which carries at close of period [Abstract]
Land	5,736
Buildings & Improvements	71,298
Total	77,034
Accumulated Depreciation	$ (11,212)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 77,034
Deductions during year
Balance at close of year	11,212
Multi Family Same-Store | Venue on Knox - Minneapolis, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	11,660
Initial Cost to Company
Land	3,438
Buildings & Improvements	14,743
Costs capitalized subsequent to acquisition	6,562
Gross amount at which carries at close of period [Abstract]
Land	3,530
Buildings & Improvements	21,213
Total	24,743
Accumulated Depreciation	$ (3,520)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 24,743
Deductions during year
Balance at close of year	3,520
Multi Family Same-Store | Westend - Denver, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	25,525
Buildings & Improvements	102,180
Costs capitalized subsequent to acquisition	3,364
Gross amount at which carries at close of period [Abstract]
Land	25,532
Buildings & Improvements	105,537
Total	131,069
Accumulated Depreciation	$ (24,749)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 131,069
Deductions during year
Balance at close of year	24,749
Multi Family Same-Store | Whispering Ridge - Omaha, NE
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	21,800
Initial Cost to Company
Land	2,139
Buildings & Improvements	25,424
Costs capitalized subsequent to acquisition	4,942
Gross amount at which carries at close of period [Abstract]
Land	2,551
Buildings & Improvements	29,954
Total	32,505
Accumulated Depreciation	(12,710)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	32,505
Deductions during year
Balance at close of year	$ 12,710
Multi Family Same-Store | Whispering Ridge - Omaha, NE | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Woodhaven - Minneapolis, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 14,408
Initial Cost to Company
Land	3,940
Buildings & Improvements	20,080
Costs capitalized subsequent to acquisition	2,335
Gross amount at which carries at close of period [Abstract]
Land	4,040
Buildings & Improvements	22,315
Total	26,355
Accumulated Depreciation	$ (2,963)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 26,355
Deductions during year
Balance at close of year	2,963
Multi Family Same-Store | Woodridge on Second - Rochester, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	370
Buildings & Improvements	6,028
Costs capitalized subsequent to acquisition	6,340
Gross amount at which carries at close of period [Abstract]
Land	761
Buildings & Improvements	11,977
Total	12,738
Accumulated Depreciation	(8,561)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	12,738
Deductions during year
Balance at close of year	$ 8,561
Multi Family Same-Store | Woodridge on Second - Rochester, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Multi Family Same-Store | Zest - Minneapolis, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 7,277
Initial Cost to Company
Land	936
Buildings & Improvements	10,209
Costs capitalized subsequent to acquisition	542
Gross amount at which carries at close of period [Abstract]
Land	946
Buildings & Improvements	10,741
Total	11,687
Accumulated Depreciation	$ (1,360)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 11,687
Deductions during year
Balance at close of year	1,360
MultiFamily Non-Same-Store
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	87,232
Initial Cost to Company
Land	11,470
Buildings & Improvements	115,417
Costs capitalized subsequent to acquisition	1,956
Gross amount at which carries at close of period [Abstract]
Land	11,501
Buildings & Improvements	117,342
Total	128,843
Accumulated Depreciation	(4,871)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	128,843
Deductions during year
Balance at close of year	4,871
MultiFamily Non-Same-Store | Lake Vista Apartments Homes - Loveland, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	52,232
Initial Cost to Company
Land	6,618
Buildings & Improvements	80,737
Costs capitalized subsequent to acquisition	1,930
Gross amount at which carries at close of period [Abstract]
Land	6,649
Buildings & Improvements	82,636
Total	89,285
Accumulated Depreciation	$ (4,529)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 89,285
Deductions during year
Balance at close of year	4,529
MultiFamily Non-Same-Store | Lydian - Denver, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	35,000
Initial Cost to Company
Land	4,852
Buildings & Improvements	34,680
Costs capitalized subsequent to acquisition	26
Gross amount at which carries at close of period [Abstract]
Land	4,852
Buildings & Improvements	34,706
Total	39,558
Accumulated Depreciation	$ (342)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 39,558
Deductions during year
Balance at close of year	342
Total Multifamily
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	619,264
Initial Cost to Company
Land	199,778
Buildings & Improvements	1,971,208
Costs capitalized subsequent to acquisition	291,775
Gross amount at which carries at close of period [Abstract]
Land	211,890
Buildings & Improvements	2,250,871
Total	2,462,761
Accumulated Depreciation	(621,445)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	2,462,761
Deductions during year
Balance at close of year	621,445
Other - Mixed Use
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	0
Buildings & Improvements	14,314
Costs capitalized subsequent to acquisition	1,672
Gross amount at which carries at close of period [Abstract]
Land	0
Buildings & Improvements	15,986
Total	15,986
Accumulated Depreciation	(4,110)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	15,986
Deductions during year
Balance at close of year	4,110
Other - Mixed Use | 71 France - Edina, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	0
Buildings & Improvements	5,879
Costs capitalized subsequent to acquisition	316
Gross amount at which carries at close of period [Abstract]
Land	0
Buildings & Improvements	6,195
Total	6,195
Accumulated Depreciation	(1,636)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	6,195
Deductions during year
Balance at close of year	$ 1,636
Other - Mixed Use | 71 France - Edina, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Other - Mixed Use | Civic Lofts - Denver, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	0
Buildings & Improvements	0
Costs capitalized subsequent to acquisition	0
Gross amount at which carries at close of period [Abstract]
Land	0
Buildings & Improvements	0
Total	0
Accumulated Depreciation	$ 0
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 0
Deductions during year
Balance at close of year	0
Other - Mixed Use | Lugano at Cherry Creek - Denver, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	0
Buildings & Improvements	1,600
Costs capitalized subsequent to acquisition	863
Gross amount at which carries at close of period [Abstract]
Land	0
Buildings & Improvements	2,463
Total	2,463
Accumulated Depreciation	$ (466)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 2,463
Deductions during year
Balance at close of year	466
Other - Mixed Use | Zest - Minneapolis, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	0
Buildings & Improvements	52
Costs capitalized subsequent to acquisition	1
Gross amount at which carries at close of period [Abstract]
Land	0
Buildings & Improvements	53
Total	53
Accumulated Depreciation	$ (29)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 53
Deductions during year
Balance at close of year	29
Other - Mixed Use | Lydian - Denver, CO
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	0
Buildings & Improvements	668
Costs capitalized subsequent to acquisition	4
Gross amount at which carries at close of period [Abstract]
Land	0
Buildings & Improvements	672
Total	672
Accumulated Depreciation	$ (28)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 672
Deductions during year
Balance at close of year	28
Other - Mixed Use | Noko Apartments - Minneapolis, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	0
Buildings & Improvements	118
Costs capitalized subsequent to acquisition	0
Gross amount at which carries at close of period [Abstract]
Land	0
Buildings & Improvements	118
Total	118
Accumulated Depreciation	$ (25)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 118
Deductions during year
Balance at close of year	25
Other - Mixed Use | Oxbo Urban Rentals- St Paul, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	0
Buildings & Improvements	3,472
Costs capitalized subsequent to acquisition	54
Gross amount at which carries at close of period [Abstract]
Land	0
Buildings & Improvements	3,526
Total	3,526
Accumulated Depreciation	$ (825)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 3,526
Deductions during year
Balance at close of year	825
Other - Mixed Use | Red 20 Apartments - Minneapolis, MN
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	0
Buildings & Improvements	2,525
Costs capitalized subsequent to acquisition	434
Gross amount at which carries at close of period [Abstract]
Land	0
Buildings & Improvements	2,959
Total	2,959
Accumulated Depreciation	(1,101)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	2,959
Deductions during year
Balance at close of year	$ 1,101
Other - Mixed Use | Red 20 Apartments - Minneapolis, MN | Maximum
Gross amount at which carries at close of period [Abstract]
Life on which depreciation in latest income statement is computed	37 years
Other - Commercial
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	$ 0
Initial Cost to Company
Land	246
Buildings & Improvements	1,866
Costs capitalized subsequent to acquisition	(118)
Gross amount at which carries at close of period [Abstract]
Land	264
Buildings & Improvements	1,730
Total	1,994
Accumulated Depreciation	(425)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	1,994
Deductions during year
Balance at close of year	425
Other - Commercial | 3100 10th St SW - Minot, ND
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	0
Initial Cost to Company
Land	246
Buildings & Improvements	1,866
Costs capitalized subsequent to acquisition	(118)
Gross amount at which carries at close of period [Abstract]
Land	264
Buildings & Improvements	1,730
Total	1,994
Accumulated Depreciation	$ (425)
Life on which depreciation in latest income statement is computed	30 years
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	$ 1,994
Deductions during year
Balance at close of year	425
Total
Real Estate And Accumulated Depreciation [Abstract]
Encumbrances	619,264
Initial Cost to Company
Land	200,024
Buildings & Improvements	1,987,388
Costs capitalized subsequent to acquisition	293,329
Gross amount at which carries at close of period [Abstract]
Land	212,154
Buildings & Improvements	2,268,587
Total	2,480,741
Accumulated Depreciation	(625,980)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at close of year	2,480,741
Deductions during year
Balance at close of year	$ 625,980