Schedule of Segment Reporting Information, by Segment [Table Text Block] |
Three months ended September 30, 2017 | | | | | | | | | | Rental revenues | | $ | 5,476 | | | $ | 18,558 | | | $ | 24,034 | | Tenant recoveries | | | 1,162 | | | | — | | | | 1,162 | | Garage and other revenue income | | | 203 | | | | 609 | | | | 812 | | | | | 6,841 | | | | 19,167 | | | | 26,008 | | Property operating expenses | | | 1,089 | | | | 5,430 | | | | 6,519 | | Real estate taxes and insurance | | | 1,148 | | | | 4,388 | | | | 5,536 | | General and administrative | | | 194 | | | | 2,307 | | | | 2,501 | | Acquisition costs | | | — | | | | 10 | | | | 10 | | Depreciation and amortization | | | 803 | | | | 3,283 | | | | 4,086 | | | | | 3,234 | | | | 15,418 | | | | 18,652 | | Income from operations | | $ | 3,607 | | | $ | 3,749 | | | $ | 7,356 | | Three months ended September 30, 2016 | | | | | | | | | | Rental revenues | | $ | 4,884 | | | $ | 17,667 | | | $ | 22,551 | | Tenant recoveries | | | 1,086 | | | | — | | | | 1,086 | | Garage and other revenue income | | | 205 | | | | 994 | | | | 1,199 | | Total revenues | | | 6,175 | | | | 18,661 | | | | 24,836 | | Property operating expenses | | | 1,149 | | | | 5,052 | | | | 6,201 | | Real estate taxes and insurance | | | 1,072 | | | | 3,811 | | | | 4,883 | | General and administrative | | | 220 | | | | 2,175 | | | | 2,395 | | Acquisition costs | | | — | | | | — | | | | — | | Depreciation and amortization | | | 743 | | | | 3,265 | | | | 4,008 | | Total operating expenses | | | 3,184 | | | | 14,303 | | | | 17,487 | | Income from operations | | $ | 2,991 | | | $ | 4,358 | | | $ | 7,349 | | Nine months ended September 30, 2017 | | | | | | | | | | Rental revenues | | $ | 16,418 | | | $ | 54,674 | | | $ | 71,092 | | Tenant recoveries | | | 3,223 | | | | — | | | | 3,223 | | Garage and other revenue income | | | 630 | | | | 1,684 | | | | 2,314 | | Total revenues | | | 20,271 | | | | 56,358 | | | | 76,629 | | Property operating expenses | | | 3,196 | | | | 16,992 | | | | 20,188 | | Real estate taxes and insurance | | | 3,271 | | | | 11,734 | | | | 15,005 | | General and administrative | | | 590 | | | | 6,695 | | | | 7,285 | | Acquisition costs | | | — | | | | 37 | | | | 37 | | Depreciation and amortization | | | 2,406 | | | | 9,678 | | | | 12,084 | | Total operating expenses | | | 9,463 | | | | 45,136 | | | | 54,599 | | Income from operations | | $ | 10,808 | | | $ | 11,222 | | | $ | 22,030 | | Nine months ended September 30, 2016 | | | | | | | | | | Rental revenues | | $ | 13,843 | | | $ | 49,405 | | | $ | 63,248 | | Tenant recoveries | | | 2,969 | | | | — | | | | 2,969 | | Garage and other revenue income | | | 1,186 | | | | 1,364 | | | | 2,550 | | Total revenues | | | 17,998 | | | | 50,769 | | | | 68,767 | | Property operating expenses | | | 3,023 | | | | 15,862 | | | | 18,885 | | Real estate taxes and insurance | | | 2,996 | | | | 10,027 | | | | 13,023 | | General and administrative | | | 541 | | | | 5,776 | | | | 6,317 | | Acquisition costs | | | — | | | | 407 | | | | 407 | | Depreciation and amortization | | | 1,980 | | | | 8,666 | | | | 10,646 | | Total operating expenses | | | 8,540 | | | | 40,738 | | | | 49,278 | | Income from operations | | $ | 9,458 | | | $ | 10,031 | | | $ | 19,489 | | | | | | | | | | | | | | $ | 222,262 | | | $ | 801,127 | | | $ | 1,023,389 | | December 31, 2016 | | | 225,608 | | | | 679,600 | | | | 905,208 | |
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Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block] |
| | | | | | | | | | Three months ended September 30, | | | | | | | | | | | | | 2017 | | $ | 1,941 | | | $ | 6,984 | | | $ | 8,925 | | 2016 | | | 1,921 | | | | 7,965 | | | | 9,886 | | Nine months ended September 30, | | | | | | | | | | | | | 2017 | | $ | 5,764 | | | $ | 20,744 | | | $ | 26,508 | | 2016 | | | 5,594 | | | | 23,155 | | | | 28,749 | | | | | | | | | | | | Three months ended September 30, | | | | | | | | | | | | | 2017 | | $ | 598 | | | $ | 5,776 | | | $ | 6,374 | | 2016 | | | 856 | | | | 3,593 | | | | 4,449 | | Nine months ended September 30, | | | | | | | | | | | | | 2017 | | $ | 3,611 | | | $ | 11,902 | | | $ | 15,513 | | 2016 | | | 1,255 | | | | 11,733 | | | | 12,988 | |
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