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SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($) apartmentCommunity | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Gross amount at which carries at close of period [Abstract] |  |  |
Total | $ 2,420,146 | $ 2,534,124 | $ 2,271,170
Accumulated Depreciation | (530,703) | (535,401) | (443,592)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at beginning of year | 2,534,124 | 2,271,170 | 1,812,557
Multifamily and Other | 87,757 | 206,623 | 491,648
Improvements and Other | 62,117 | 57,203 | 34,427
Total additions including opening balance | 2,683,998 | 2,534,996 | 2,338,632
Cost of real estate sold | (243,889) | 0 | (57,698)
Impairment charge | (5,218) | 0 | 0
Other | (14,745) | (872) | (9,764)
Balance at close of year | 2,420,146 | 2,534,124 | 2,271,170
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward] |  |  |
Balance at beginning of year | 535,401 | 443,592 | 399,249
Additions during year |  |  |
Provisions for depreciation | 98,691 | 92,056 | 78,268
Deductions during year |  |  |
Accumulated depreciation on real estate sold or classified as held for sale | (92,239) | 0 | (24,161)
Other | (11,150) | (247) | (9,764)
Balance at close of year | 530,703 | 535,401 | 443,592
Total real estate investments, excluding mortgage notes receivable | $ 1,889,443 | 1,998,723 | $ 1,827,578
Number of apartment communities impaired during year | apartmentCommunity | 2 |  |
Net basis of real estate investments for federal income tax purposes | $ 1,400,000 | $ 1,500,000 |
Multi Family Same-Store |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 462,396 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 177,545 |  |
Buildings & Improvements | 1,685,002 |  |
Costs capitalized subsequent to acquisition | 243,970 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 189,440 |  |
Buildings & Improvements | 1,917,077 |  |
Total | 2,106,517 |  |
Accumulated Depreciation | (512,452) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 2,106,517 |  |
Deductions during year |  |  |
Balance at close of year | 512,452 |  |
Multi Family Same-Store | 71 France - Edina, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 49,675 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 4,721 |  |
Buildings & Improvements | 61,762 |  |
Costs capitalized subsequent to acquisition | 1,653 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 4,801 |  |
Buildings & Improvements | 63,335 |  |
Total | 68,136 |  |
Accumulated Depreciation | (21,322) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 68,136 |  |
Deductions during year |  |  |
Balance at close of year | $ 21,322 |  |
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 [Abstract] |  |  |
Land | 287 |  |
Buildings & Improvements | 5,551 |  |
Costs capitalized subsequent to acquisition | 671 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 336 |  |
Buildings & Improvements | 6,173 |  |
Total | 6,509 |  |
Accumulated Depreciation | (2,162) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 6,509 |  |
Deductions during year |  |  |
Balance at close of year | $ 2,162 |  |
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 [Abstract] |  |  |
Land | 2,088 |  |
Buildings & Improvements | 31,036 |  |
Costs capitalized subsequent to acquisition | 781 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 2,128 |  |
Buildings & Improvements | 31,777 |  |
Total | 33,905 |  |
Accumulated Depreciation | (11,660) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 33,905 |  |
Deductions during year |  |  |
Balance at close of year | $ 11,660 |  |
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 [Abstract] |  |  |
Land | 741 |  |
Buildings & Improvements | 7,569 |  |
Costs capitalized subsequent to acquisition | 285 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 823 |  |
Buildings & Improvements | 7,772 |  |
Total | 8,595 |  |
Accumulated Depreciation | (3,120) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 8,595 |  |
Deductions during year |  |  |
Balance at close of year | $ 3,120 |  |
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 [Abstract] |  |  |
Land | 1,616 |  |
Buildings & Improvements | 34,074 |  |
Costs capitalized subsequent to acquisition | 4,984 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,808 |  |
Buildings & Improvements | 38,866 |  |
Total | 40,674 |  |
Accumulated Depreciation | (10,222) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 40,674 |  |
Deductions during year |  |  |
Balance at close of year | $ 10,222 |  |
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 [Abstract] |  |  |
Land | 1,807 |  |
Buildings & Improvements | 14,113 |  |
Costs capitalized subsequent to acquisition | 1,637 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,865 |  |
Buildings & Improvements | 15,692 |  |
Total | 17,557 |  |
Accumulated Depreciation | $ (1,347) |  |
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 | $ 17,557 |  |
Deductions during year |  |  |
Balance at close of year | 1,347 |  |
Multi Family Same-Store | Burgandy & Hillsboro - New Hope, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 23,570 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 2,834 |  |
Buildings & Improvements | 31,149 |  |
Costs capitalized subsequent to acquisition | 2,132 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 2,913 |  |
Buildings & Improvements | 33,202 |  |
Total | 36,115 |  |
Accumulated Depreciation | $ (3,066) |  |
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 | $ 36,115 |  |
Deductions during year |  |  |
Balance at close of year | 3,066 |  |
Multi Family Same-Store | Canyon Lake Apartments - Rapid City, SD |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 305 |  |
Buildings & Improvements | 3,958 |  |
Costs capitalized subsequent to acquisition | 2,335 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 420 |  |
Buildings & Improvements | 6,178 |  |
Total | 6,598 |  |
Accumulated Depreciation | (3,591) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 6,598 |  |
Deductions during year |  |  |
Balance at close of year | $ 3,591 |  |
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 [Abstract] |  |  |
Land | 1,600 |  |
Buildings & Improvements | 33,400 |  |
Costs capitalized subsequent to acquisition | (111) |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,727 |  |
Buildings & Improvements | 33,162 |  |
Total | 34,889 |  |
Accumulated Depreciation | (6,287) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 34,889 |  |
Deductions during year |  |  |
Balance at close of year | $ 6,287 |  |
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 | $ 43,835 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 6,588 |  |
Buildings & Improvements | 67,072 |  |
Costs capitalized subsequent to acquisition | 10,705 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 6,776 |  |
Buildings & Improvements | 77,589 |  |
Total | 84,365 |  |
Accumulated Depreciation | (23,733) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 84,365 |  |
Deductions during year |  |  |
Balance at close of year | $ 23,733 |  |
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 [Abstract] |  |  |
Land | 736 |  |
Buildings & Improvements | 4,864 |  |
Costs capitalized subsequent to acquisition | 2,075 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,045 |  |
Buildings & Improvements | 6,630 |  |
Total | 7,675 |  |
Accumulated Depreciation | (4,782) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 7,675 |  |
Deductions during year |  |  |
Balance at close of year | $ 4,782 |  |
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 [Abstract] |  |  |
Land | 6,166 |  |
Buildings & Improvements | 55,182 |  |
Costs capitalized subsequent to acquisition | 597 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 6,171 |  |
Buildings & Improvements | 55,774 |  |
Total | 61,945 |  |
Accumulated Depreciation | $ (4,525) |  |
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 | $ 61,945 |  |
Deductions during year |  |  |
Balance at close of year | 4,525 |  |
Multi Family Same-Store | Connelly on Eleven - Burnsville, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 2,401 |  |
Buildings & Improvements | 11,515 |  |
Costs capitalized subsequent to acquisition | 16,844 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 3,206 |  |
Buildings & Improvements | 27,554 |  |
Total | 30,760 |  |
Accumulated Depreciation | (18,022) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 30,760 |  |
Deductions during year |  |  |
Balance at close of year | $ 18,022 |  |
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 [Abstract] |  |  |
Land | 1,056 |  |
Buildings & Improvements | 17,372 |  |
Costs capitalized subsequent to acquisition | 6,823 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,962 |  |
Buildings & Improvements | 23,289 |  |
Total | 25,251 |  |
Accumulated Depreciation | (14,117) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 25,251 |  |
Deductions during year |  |  |
Balance at close of year | $ 14,117 |  |
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 [Abstract] |  |  |
Land | 491 |  |
Buildings & Improvements | 7,809 |  |
Costs capitalized subsequent to acquisition | 1,437 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 599 |  |
Buildings & Improvements | 9,138 |  |
Total | 9,737 |  |
Accumulated Depreciation | (6,079) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 9,737 |  |
Deductions during year |  |  |
Balance at close of year | $ 6,079 |  |
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 | $ 10,697 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 1,583 |  |
Buildings & Improvements | 18,879 |  |
Costs capitalized subsequent to acquisition | 1,074 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,625 |  |
Buildings & Improvements | 19,911 |  |
Total | 21,536 |  |
Accumulated Depreciation | (7,089) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 21,536 |  |
Deductions during year |  |  |
Balance at close of year | $ 7,089 |  |
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 [Abstract] |  |  |
Land | 711 |  |
Buildings & Improvements | 24,129 |  |
Costs capitalized subsequent to acquisition | 814 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 785 |  |
Buildings & Improvements | 24,869 |  |
Total | 25,654 |  |
Accumulated Depreciation | (8,883) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 25,654 |  |
Deductions during year |  |  |
Balance at close of year | $ 8,883 |  |
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 [Abstract] |  |  |
Land | 1,515 |  |
Buildings & Improvements | 15,730 |  |
Costs capitalized subsequent to acquisition | 8,263 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,817 |  |
Buildings & Improvements | 23,691 |  |
Total | 25,508 |  |
Accumulated Depreciation | (8,980) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 25,508 |  |
Deductions during year |  |  |
Balance at close of year | $ 8,980 |  |
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 [Abstract] |  |  |
Land | 12,155 |  |
Buildings & Improvements | 77,215 |  |
Costs capitalized subsequent to acquisition | 1,376 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 12,241 |  |
Buildings & Improvements | 78,505 |  |
Total | 90,746 |  |
Accumulated Depreciation | $ (16,307) |  |
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 | $ 90,746 |  |
Deductions during year |  |  |
Balance at close of year | 16,307 |  |
Multi Family Same-Store | Evergreen Apartment Homes - Isanti, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 1,129 |  |
Buildings & Improvements | 5,524 |  |
Costs capitalized subsequent to acquisition | 753 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,159 |  |
Buildings & Improvements | 6,247 |  |
Total | 7,406 |  |
Accumulated Depreciation | (2,666) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 7,406 |  |
Deductions during year |  |  |
Balance at close of year | $ 2,666 |  |
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 [Abstract] |  |  |
Land | 1,889 |  |
Buildings & Improvements | 23,616 |  |
Costs capitalized subsequent to acquisition | 1,447 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,745 |  |
Buildings & Improvements | 25,207 |  |
Total | 26,952 |  |
Accumulated Depreciation | $ (4,006) |  |
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 | $ 26,952 |  |
Deductions during year |  |  |
Balance at close of year | 4,006 |  |
Multi Family Same-Store | Gardens Apartments - Grand Forks, ND |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 518 |  |
Buildings & Improvements | 8,702 |  |
Costs capitalized subsequent to acquisition | 152 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 535 |  |
Buildings & Improvements | 8,837 |  |
Total | 9,372 |  |
Accumulated Depreciation | (2,761) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 9,372 |  |
Deductions during year |  |  |
Balance at close of year | $ 2,761 |  |
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 [Abstract] |  |  |
Land | 814 |  |
Buildings & Improvements | 7,086 |  |
Costs capitalized subsequent to acquisition | 3,336 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 970 |  |
Buildings & Improvements | 10,266 |  |
Total | 11,236 |  |
Accumulated Depreciation | (4,460) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 11,236 |  |
Deductions during year |  |  |
Balance at close of year | $ 4,460 |  |
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 [Abstract] |  |  |
Land | 578 |  |
Buildings & Improvements | 4,122 |  |
Costs capitalized subsequent to acquisition | 3,147 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 876 |  |
Buildings & Improvements | 6,971 |  |
Total | 7,847 |  |
Accumulated Depreciation | (3,653) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 7,847 |  |
Deductions during year |  |  |
Balance at close of year | $ 3,653 |  |
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 [Abstract] |  |  |
Land | 1,250 |  |
Buildings & Improvements | 10,271 |  |
Costs capitalized subsequent to acquisition | 790 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,293 |  |
Buildings & Improvements | 11,018 |  |
Total | 12,311 |  |
Accumulated Depreciation | $ (981) |  |
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 | $ 12,311 |  |
Deductions during year |  |  |
Balance at close of year | 981 |  |
Multi Family Same-Store | Homestead Garden Apartments - Rapid City, SD |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 655 |  |
Buildings & Improvements | 14,139 |  |
Costs capitalized subsequent to acquisition | 1,783 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 792 |  |
Buildings & Improvements | 15,785 |  |
Total | 16,577 |  |
Accumulated Depreciation | (5,006) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 16,577 |  |
Deductions during year |  |  |
Balance at close of year | $ 5,006 |  |
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 [Abstract] |  |  |
Land | 2,165 |  |
Buildings & Improvements | 36,874 |  |
Costs capitalized subsequent to acquisition | 764 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 2,167 |  |
Buildings & Improvements | 37,636 |  |
Total | 39,803 |  |
Accumulated Depreciation | $ (5,435) |  |
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 | $ 39,803 |  |
Deductions during year |  |  |
Balance at close of year | 5,435 |  |
Multi Family Same-Store | Lakeside Village Apartment Homes - Lincoln, NE |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 1,215 |  |
Buildings & Improvements | 15,837 |  |
Costs capitalized subsequent to acquisition | 5,945 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,476 |  |
Buildings & Improvements | 21,521 |  |
Total | 22,997 |  |
Accumulated Depreciation | (8,013) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 22,997 |  |
Deductions during year |  |  |
Balance at close of year | $ 8,013 |  |
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 [Abstract] |  |  |
Land | 1,362 |  |
Buildings & Improvements | 21,727 |  |
Costs capitalized subsequent to acquisition | 11,075 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 2,474 |  |
Buildings & Improvements | 31,690 |  |
Total | 34,164 |  |
Accumulated Depreciation | (21,434) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 34,164 |  |
Deductions during year |  |  |
Balance at close of year | $ 21,434 |  |
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 [Abstract] |  |  |
Land | 1,207 |  |
Buildings & Improvements | 13,742 |  |
Costs capitalized subsequent to acquisition | 300 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,142 |  |
Buildings & Improvements | 14,107 |  |
Total | 15,249 |  |
Accumulated Depreciation | (3,961) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 15,249 |  |
Deductions during year |  |  |
Balance at close of year | $ 3,961 |  |
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 [Abstract] |  |  |
Land | 7,679 |  |
Buildings & Improvements | 87,766 |  |
Costs capitalized subsequent to acquisition | 8,410 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 7,679 |  |
Buildings & Improvements | 96,176 |  |
Total | 103,855 |  |
Accumulated Depreciation | $ (15,386) |  |
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 | $ 103,855 |  |
Deductions during year |  |  |
Balance at close of year | 15,386 |  |
Multi Family Same-Store | Meadows Apartments - Jamestown, ND |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 590 |  |
Buildings & Improvements | 4,519 |  |
Costs capitalized subsequent to acquisition | 1,992 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 730 |  |
Buildings & Improvements | 6,371 |  |
Total | 7,101 |  |
Accumulated Depreciation | (4,133) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 7,101 |  |
Deductions during year |  |  |
Balance at close of year | $ 4,133 |  |
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 [Abstract] |  |  |
Land | 1,734 |  |
Buildings & Improvements | 30,136 |  |
Costs capitalized subsequent to acquisition | 556 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,951 |  |
Buildings & Improvements | 30,475 |  |
Total | 32,426 |  |
Accumulated Depreciation | (8,329) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 32,426 |  |
Deductions during year |  |  |
Balance at close of year | $ 8,329 |  |
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 [Abstract] |  |  |
Land | 490 |  |
Buildings & Improvements | 3,756 |  |
Costs capitalized subsequent to acquisition | 1,206 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 655 |  |
Buildings & Improvements | 4,797 |  |
Total | 5,452 |  |
Accumulated Depreciation | (2,924) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 5,452 |  |
Deductions during year |  |  |
Balance at close of year | $ 2,924 |  |
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 [Abstract] |  |  |
Land | 1,603 |  |
Buildings & Improvements | 12,578 |  |
Costs capitalized subsequent to acquisition | 1,393 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,651 |  |
Buildings & Improvements | 13,923 |  |
Total | 15,574 |  |
Accumulated Depreciation | $ (1,419) |  |
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 | $ 15,574 |  |
Deductions during year |  |  |
Balance at close of year | 1,419 |  |
Multi Family Same-Store | Northridge Apartments - Bismarck, ND |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 884 |  |
Buildings & Improvements | 7,515 |  |
Costs capitalized subsequent to acquisition | 280 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,048 |  |
Buildings & Improvements | 7,631 |  |
Total | 8,679 |  |
Accumulated Depreciation | (2,412) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 8,679 |  |
Deductions during year |  |  |
Balance at close of year | $ 2,412 |  |
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 [Abstract] |  |  |
Land | 1,164 |  |
Buildings & Improvements | 10,441 |  |
Costs capitalized subsequent to acquisition | 4,174 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,885 |  |
Buildings & Improvements | 13,894 |  |
Total | 15,779 |  |
Accumulated Depreciation | (9,224) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 15,779 |  |
Deductions during year |  |  |
Balance at close of year | $ 9,224 |  |
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 | $ 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 5,809 |  |
Buildings & Improvements | 51,586 |  |
Costs capitalized subsequent to acquisition | 711 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 5,822 |  |
Buildings & Improvements | 52,284 |  |
Total | 58,106 |  |
Accumulated Depreciation | $ (11,861) |  |
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 | $ 58,106 |  |
Deductions during year |  |  |
Balance at close of year | 11,861 |  |
Multi Family Same-Store | Palisades - Roseville, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 21,622 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 6,919 |  |
Buildings & Improvements | 46,577 |  |
Costs capitalized subsequent to acquisition | 4,806 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 6,959 |  |
Buildings & Improvements | 51,343 |  |
Total | 58,302 |  |
Accumulated Depreciation | $ (4,233) |  |
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 | $ 58,302 |  |
Deductions during year |  |  |
Balance at close of year | 4,233 |  |
Multi Family Same-Store | Park Place Apartments - Plymouth, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 10,609 |  |
Buildings & Improvements | 80,781 |  |
Costs capitalized subsequent to acquisition | 20,098 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 10,819 |  |
Buildings & Improvements | 100,669 |  |
Total | 111,488 |  |
Accumulated Depreciation | (26,469) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 111,488 |  |
Deductions during year |  |  |
Balance at close of year | 26,469 |  |
Multi Family Same-Store | Parkhouse Apartment Homes - Thornton, CO |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 89,239 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 10,474 |  |
Buildings & Improvements | 132,105 |  |
Costs capitalized subsequent to acquisition | 3,074 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 10,484 |  |
Buildings & Improvements | 135,169 |  |
Total | 145,653 |  |
Accumulated Depreciation | $ (17,666) |  |
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 | $ 145,653 |  |
Deductions during year |  |  |
Balance at close of year | 17,666 |  |
Multi Family Same-Store | Plymouth Pointe - Plymouth, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 9,575 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 1,042 |  |
Buildings & Improvements | 12,810 |  |
Costs capitalized subsequent to acquisition | 340 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,073 |  |
Buildings & Improvements | 13,119 |  |
Total | 14,192 |  |
Accumulated Depreciation | $ (1,261) |  |
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 | $ 14,192 |  |
Deductions during year |  |  |
Balance at close of year | 1,261 |  |
Multi Family Same-Store | Pointe West Apartments - Rapid City, SD |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 240 |  |
Buildings & Improvements | 3,538 |  |
Costs capitalized subsequent to acquisition | 2,075 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 463 |  |
Buildings & Improvements | 5,390 |  |
Total | 5,853 |  |
Accumulated Depreciation | (4,267) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 5,853 |  |
Deductions during year |  |  |
Balance at close of year | $ 4,267 |  |
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 [Abstract] |  |  |
Land | 395 |  |
Buildings & Improvements | 4,564 |  |
Costs capitalized subsequent to acquisition | 510 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 419 |  |
Buildings & Improvements | 5,050 |  |
Total | 5,469 |  |
Accumulated Depreciation | (2,059) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 5,469 |  |
Deductions during year |  |  |
Balance at close of year | $ 2,059 |  |
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 [Abstract] |  |  |
Land | 939 |  |
Buildings & Improvements | 10,167 |  |
Costs capitalized subsequent to acquisition | 17,929 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,912 |  |
Buildings & Improvements | 27,123 |  |
Total | 29,035 |  |
Accumulated Depreciation | (16,762) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 29,035 |  |
Deductions during year |  |  |
Balance at close of year | $ 16,762 |  |
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 [Abstract] |  |  |
Land | 2,254 |  |
Buildings & Improvements | 30,024 |  |
Costs capitalized subsequent to acquisition | 9,493 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 2,412 |  |
Buildings & Improvements | 39,359 |  |
Total | 41,771 |  |
Accumulated Depreciation | (16,051) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 41,771 |  |
Deductions during year |  |  |
Balance at close of year | $ 16,051 |  |
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 | $ 19,718 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 1,900 |  |
Buildings & Improvements | 24,116 |  |
Costs capitalized subsequent to acquisition | 809 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,908 |  |
Buildings & Improvements | 24,917 |  |
Total | 26,825 |  |
Accumulated Depreciation | (9,063) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 26,825 |  |
Deductions during year |  |  |
Balance at close of year | $ 9,063 |  |
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 | $ 6,669 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 702 |  |
Buildings & Improvements | 10,198 |  |
Costs capitalized subsequent to acquisition | 8,683 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,179 |  |
Buildings & Improvements | 18,404 |  |
Total | 19,583 |  |
Accumulated Depreciation | (7,676) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 19,583 |  |
Deductions during year |  |  |
Balance at close of year | $ 7,676 |  |
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 [Abstract] |  |  |
Land | 330 |  |
Buildings & Improvements | 3,489 |  |
Costs capitalized subsequent to acquisition | 1,883 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 568 |  |
Buildings & Improvements | 5,134 |  |
Total | 5,702 |  |
Accumulated Depreciation | (3,588) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 5,702 |  |
Deductions during year |  |  |
Balance at close of year | $ 3,588 |  |
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 [Abstract] |  |  |
Land | 3,346 |  |
Buildings & Improvements | 33,118 |  |
Costs capitalized subsequent to acquisition | 5,515 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 3,426 |  |
Buildings & Improvements | 38,553 |  |
Total | 41,979 |  |
Accumulated Depreciation | $ (3,750) |  |
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 | $ 41,979 |  |
Deductions during year |  |  |
Balance at close of year | 3,750 |  |
Multi Family Same-Store | River Ridge Apartment Homes - Bismarck, ND |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 576 |  |
Buildings & Improvements | 24,670 |  |
Costs capitalized subsequent to acquisition | 1,432 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 922 |  |
Buildings & Improvements | 25,756 |  |
Total | 26,678 |  |
Accumulated Depreciation | (10,811) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 26,678 |  |
Deductions during year |  |  |
Balance at close of year | $ 10,811 |  |
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 [Abstract] |  |  |
Land | 656 |  |
Buildings & Improvements | 5,726 |  |
Costs capitalized subsequent to acquisition | 1,511 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 840 |  |
Buildings & Improvements | 7,053 |  |
Total | 7,893 |  |
Accumulated Depreciation | (5,019) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 7,893 |  |
Deductions during year |  |  |
Balance at close of year | $ 5,019 |  |
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 [Abstract] |  |  |
Land | 843 |  |
Buildings & Improvements | 4,823 |  |
Costs capitalized subsequent to acquisition | 533 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 870 |  |
Buildings & Improvements | 5,329 |  |
Total | 6,199 |  |
Accumulated Depreciation | (2,632) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 6,199 |  |
Deductions during year |  |  |
Balance at close of year | $ 2,632 |  |
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 [Abstract] |  |  |
Land | 215 |  |
Buildings & Improvements | 3,007 |  |
Costs capitalized subsequent to acquisition | 1,046 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 273 |  |
Buildings & Improvements | 3,995 |  |
Total | 4,268 |  |
Accumulated Depreciation | (1,376) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 4,268 |  |
Deductions during year |  |  |
Balance at close of year | $ 1,376 |  |
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 | Southdale Parc - Richfield, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | $ 5,301 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 1,569 |  |
Buildings & Improvements | 7,740 |  |
Costs capitalized subsequent to acquisition | (2,205) |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,618 |  |
Buildings & Improvements | 5,486 |  |
Total | 7,104 |  |
Accumulated Depreciation | $ (780) |  |
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 | $ 7,104 |  |
Deductions during year |  |  |
Balance at close of year | 780 |  |
Multi Family Same-Store | SouthFork Townhomes + Flats - Lakeville, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 21,675 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 3,502 |  |
Buildings & Improvements | 40,153 |  |
Costs capitalized subsequent to acquisition | 11,288 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 3,583 |  |
Buildings & Improvements | 51,360 |  |
Total | 54,943 |  |
Accumulated Depreciation | $ (12,684) |  |
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 | $ 54,943 |  |
Deductions during year |  |  |
Balance at close of year | 12,684 |  |
Multi Family Same-Store | Southpoint Apartments - Grand Forks, ND |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 576 |  |
Buildings & Improvements | 9,893 |  |
Costs capitalized subsequent to acquisition | 409 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 663 |  |
Buildings & Improvements | 10,215 |  |
Total | 10,878 |  |
Accumulated Depreciation | (3,432) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 10,878 |  |
Deductions during year |  |  |
Balance at close of year | $ 3,432 |  |
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 [Abstract] |  |  |
Land | 336 |  |
Buildings & Improvements | 12,814 |  |
Costs capitalized subsequent to acquisition | 5,961 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 826 |  |
Buildings & Improvements | 18,285 |  |
Total | 19,111 |  |
Accumulated Depreciation | (10,340) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 19,111 |  |
Deductions during year |  |  |
Balance at close of year | $ 10,340 |  |
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 | Union Pointe - Longmont, CO |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | $ 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 5,727 |  |
Buildings & Improvements | 69,966 |  |
Costs capitalized subsequent to acquisition | 678 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 5,736 |  |
Buildings & Improvements | 70,635 |  |
Total | 76,371 |  |
Accumulated Depreciation | $ (8,307) |  |
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 | $ 76,371 |  |
Deductions during year |  |  |
Balance at close of year | 8,307 |  |
Multi Family Same-Store | Venue on Knox - Minneapolis, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 11,660 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 3,438 |  |
Buildings & Improvements | 14,743 |  |
Costs capitalized subsequent to acquisition | 5,997 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 3,530 |  |
Buildings & Improvements | 20,648 |  |
Total | 24,178 |  |
Accumulated Depreciation | $ (2,074) |  |
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 | $ 24,178 |  |
Deductions during year |  |  |
Balance at close of year | 2,074 |  |
Multi Family Same-Store | Westend - Denver, CO |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 25,525 |  |
Buildings & Improvements | 102,180 |  |
Costs capitalized subsequent to acquisition | 1,578 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 25,532 |  |
Buildings & Improvements | 103,751 |  |
Total | 129,283 |  |
Accumulated Depreciation | $ (20,846) |  |
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 | $ 129,283 |  |
Deductions during year |  |  |
Balance at close of year | 20,846 |  |
Multi Family Same-Store | Whispering Ridge - Omaha, NE |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 21,800 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 2,139 |  |
Buildings & Improvements | 25,424 |  |
Costs capitalized subsequent to acquisition | 5,595 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 2,551 |  |
Buildings & Improvements | 30,607 |  |
Total | 33,158 |  |
Accumulated Depreciation | (11,771) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 33,158 |  |
Deductions during year |  |  |
Balance at close of year | $ 11,771 |  |
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 | Wingate - New Hope, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | $ 10,459 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 1,480 |  |
Buildings & Improvements | 13,530 |  |
Costs capitalized subsequent to acquisition | (1,032) |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,526 |  |
Buildings & Improvements | 12,452 |  |
Total | 13,978 |  |
Accumulated Depreciation | $ (1,422) |  |
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 | $ 13,978 |  |
Deductions during year |  |  |
Balance at close of year | 1,422 |  |
Multi Family Same-Store | Woodhaven - Minneapolis, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 14,408 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 3,940 |  |
Buildings & Improvements | 20,080 |  |
Costs capitalized subsequent to acquisition | 1,891 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 4,040 |  |
Buildings & Improvements | 21,871 |  |
Total | 25,911 |  |
Accumulated Depreciation | $ (1,849) |  |
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 | $ 25,911 |  |
Deductions during year |  |  |
Balance at close of year | 1,849 |  |
Multi Family Same-Store | Woodland Pointe - Woodbury, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 31,673 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 5,367 |  |
Buildings & Improvements | 40,422 |  |
Costs capitalized subsequent to acquisition | 15,422 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 5,449 |  |
Buildings & Improvements | 55,762 |  |
Total | 61,211 |  |
Accumulated Depreciation | $ (5,160) |  |
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 | $ 61,211 |  |
Deductions during year |  |  |
Balance at close of year | 5,160 |  |
Multi Family Same-Store | Woodridge on Second - Rochester, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 370 |  |
Buildings & Improvements | 6,028 |  |
Costs capitalized subsequent to acquisition | 6,062 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 761 |  |
Buildings & Improvements | 11,699 |  |
Total | 12,460 |  |
Accumulated Depreciation | (7,746) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 12,460 |  |
Deductions during year |  |  |
Balance at close of year | $ 7,746 |  |
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 |  |
MultiFamily Non-Same-Store |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | $ 127,594 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 20,430 |  |
Buildings & Improvements | 272,796 |  |
Costs capitalized subsequent to acquisition | 2,801 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 20,503 |  |
Buildings & Improvements | 275,524 |  |
Total | 296,027 |  |
Accumulated Depreciation | (14,113) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 296,027 |  |
Deductions during year |  |  |
Balance at close of year | 14,113 |  |
MultiFamily Non-Same-Store | Elements of Linden Hills - Minneapolis, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 5,842 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 941 |  |
Buildings & Improvements | 7,853 |  |
Costs capitalized subsequent to acquisition | 290 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 949 |  |
Buildings & Improvements | 8,135 |  |
Total | 9,084 |  |
Accumulated Depreciation | $ (686) |  |
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 | $ 9,084 |  |
Deductions during year |  |  |
Balance at close of year | 686 |  |
MultiFamily Non-Same-Store | Lake Vista Apartments Homes - Loveland, CO |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 49,033 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 6,618 |  |
Buildings & Improvements | 80,737 |  |
Costs capitalized subsequent to acquisition | 434 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 6,649 |  |
Buildings & Improvements | 81,140 |  |
Total | 87,789 |  |
Accumulated Depreciation | $ (885) |  |
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 | $ 87,789 |  |
Deductions during year |  |  |
Balance at close of year | 885 |  |
MultiFamily Non-Same-Store | Lyra Apartments - Centennial, CO |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 37,809 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 6,473 |  |
Buildings & Improvements | 86,149 |  |
Costs capitalized subsequent to acquisition | 423 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 6,481 |  |
Buildings & Improvements | 86,564 |  |
Total | 93,045 |  |
Accumulated Depreciation | $ (4,500) |  |
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 | $ 93,045 |  |
Deductions during year |  |  |
Balance at close of year | 4,500 |  |
MultiFamily Non-Same-Store | Martin Blu - Eden Prairie, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 27,193 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 3,547 |  |
Buildings & Improvements | 45,212 |  |
Costs capitalized subsequent to acquisition | 866 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 3,560 |  |
Buildings & Improvements | 46,065 |  |
Total | 49,625 |  |
Accumulated Depreciation | $ (3,756) |  |
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 | $ 49,625 |  |
Deductions during year |  |  |
Balance at close of year | 3,756 |  |
MultiFamily Non-Same-Store | Noko Apartments - Minneapolis, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 1,915 |  |
Buildings & Improvements | 42,636 |  |
Costs capitalized subsequent to acquisition | 295 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 1,918 |  |
Buildings & Improvements | 42,928 |  |
Total | 44,846 |  |
Accumulated Depreciation | $ (3,401) |  |
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 | $ 44,846 |  |
Deductions during year |  |  |
Balance at close of year | 3,401 |  |
MultiFamily Non-Same-Store | Zest - Minneapolis, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 7,717 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 936 |  |
Buildings & Improvements | 10,209 |  |
Costs capitalized subsequent to acquisition | 493 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 946 |  |
Buildings & Improvements | 10,692 |  |
Total | 11,638 |  |
Accumulated Depreciation | $ (885) |  |
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 | $ 11,638 |  |
Deductions during year |  |  |
Balance at close of year | 885 |  |
Total Multifamily |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 589,990 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 197,975 |  |
Buildings & Improvements | 1,957,798 |  |
Costs capitalized subsequent to acquisition | 246,771 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 209,943 |  |
Buildings & Improvements | 2,192,601 |  |
Total | 2,402,544 |  |
Accumulated Depreciation | (526,565) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 2,402,544 |  |
Deductions during year |  |  |
Balance at close of year | 526,565 |  |
Other - Mixed Use |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 0 |  |
Buildings & Improvements | 13,646 |  |
Costs capitalized subsequent to acquisition | 1,966 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 0 |  |
Buildings & Improvements | 15,612 |  |
Total | 15,612 |  |
Accumulated Depreciation | (3,776) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 15,612 |  |
Deductions during year |  |  |
Balance at close of year | 3,776 |  |
Other - Mixed Use | 71 France - Edina, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 0 |  |
Buildings & Improvements | 5,879 |  |
Costs capitalized subsequent to acquisition | 616 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 0 |  |
Buildings & Improvements | 6,495 |  |
Total | 6,495 |  |
Accumulated Depreciation | (1,665) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 6,495 |  |
Deductions during year |  |  |
Balance at close of year | $ 1,665 |  |
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 [Abstract] |  |  |
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 [Abstract] |  |  |
Land | 0 |  |
Buildings & Improvements | 1,600 |  |
Costs capitalized subsequent to acquisition | 861 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 0 |  |
Buildings & Improvements | 2,461 |  |
Total | 2,461 |  |
Accumulated Depreciation | $ (350) |  |
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 | $ 2,461 |  |
Deductions during year |  |  |
Balance at close of year | 350 |  |
Other - Mixed Use | Zest - Minneapolis, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
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 | $ (19) |  |
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 | 19 |  |
Other - Mixed Use | Noko - Minneapolis, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
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 | $ (17) |  |
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 | 17 |  |
Other - Mixed Use | 191 homes - Oxbo - St Paul, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
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 | $ (728) |  |
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 | 728 |  |
Other - Mixed Use | Red 20 - Minneapolis, MN |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
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 | (997) |  |
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 | $ 997 |  |
Other - Mixed Use | Red 20 - 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 [Abstract] |  |  |
Land | 246 |  |
Buildings & Improvements | 1,866 |  |
Costs capitalized subsequent to acquisition | (122) |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 246 |  |
Buildings & Improvements | 1,744 |  |
Total | 1,990 |  |
Accumulated Depreciation | (362) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 1,990 |  |
Deductions during year |  |  |
Balance at close of year | 362 |  |
Other - Commercial | 3100 10th St SW - Minot, ND |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 0 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 246 |  |
Buildings & Improvements | 1,866 |  |
Costs capitalized subsequent to acquisition | (122) |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 246 |  |
Buildings & Improvements | 1,744 |  |
Total | 1,990 |  |
Accumulated Depreciation | $ (362) |  |
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 | $ 1,990 |  |
Deductions during year |  |  |
Balance at close of year | 362 |  |
Total |  |  |
Real Estate And Accumulated Depreciation [Abstract] |  |  |
Encumbrances | 589,990 |  |
Initial Cost to Company [Abstract] |  |  |
Land | 198,221 |  |
Buildings & Improvements | 1,973,310 |  |
Costs capitalized subsequent to acquisition | 248,615 |  |
Gross amount at which carries at close of period [Abstract] |  |  |
Land | 210,189 |  |
Buildings & Improvements | 2,209,957 |  |
Total | 2,420,146 |  |
Accumulated Depreciation | (530,703) |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward] |  |  |
Balance at close of year | 2,420,146 |  |
Deductions during year |  |  |
Balance at close of year | $ 530,703 |  |

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