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Segment Information - Summary of NOI by Segment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |
Operating Leases, Income Statement, Lease Revenue |  | $ 513,447 | $ 451,541
Other property operating income |  |  | 23,069
Total rental revenue |  |  | 474,610
Direct Costs of Leased and Rented Property or Equipment | $ 137,622 | 148,081 | 118,836
Real estate taxes | 70,493 | 71,054 | 66,434
Total rental expense |  |  | 185,270
Consolidated NOI |  |  | 289,340
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Leases, Income Statement, Lease Revenue | 493,273 | 513,447 |
Other property operating income | 25,973 | 25,678 |
Total rental revenue | 519,246 | 539,125 |
Direct Costs of Leased and Rented Property or Equipment | 137,622 | 148,081 |
Real estate taxes | 70,493 | 71,054 |
Total rental expense | 208,115 | 219,135 |
Consolidated NOI | 311,131 | 319,990 |
Operating Segments | Commercial Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Leases, Income Statement, Lease Revenue | 383,311 | 404,826 | 361,121
Other property operating income | 25,593 | 25,216 | 22,776
Total rental revenue | 408,904 | 430,042 | 383,897
Direct Costs of Leased and Rented Property or Equipment | 113,177 | 118,288 | 97,701
Real estate taxes | 50,115 | 53,324 | 50,546
Total rental expense | 163,292 | 171,612 | 148,247
Consolidated NOI | 245,612 | 258,430 | 235,650
Operating Segments | Multifamily |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Leases, Income Statement, Lease Revenue | 116,330 | 108,989 | 91,294
Other property operating income | 380 | 368 | 275
Total rental revenue | 116,710 | 109,357 | 91,569
Direct Costs of Leased and Rented Property or Equipment | 35,236 | 31,502 | 24,623
Real estate taxes | 15,021 | 14,280 | 11,030
Total rental expense | 50,257 | 45,782 | 35,653
Consolidated NOI | 66,453 | 63,575 | 55,916
Operating Segments | Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Leases, Income Statement, Lease Revenue | (6,368) | (368) | (874)
Other property operating income | 0 | 94 | 18
Total rental revenue | (6,368) | (274) | (856)
Direct Costs of Leased and Rented Property or Equipment | (10,791) | (1,709) | (3,488)
Real estate taxes | 5,357 | 3,450 | 4,858
Total rental expense | (5,434) | 1,741 | 1,370
Consolidated NOI | $ (934) | $ (2,015) | $ (2,226)

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- Definition Amount of expense incurred and directly related to generating revenue from leased and rented property or equipment. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(c)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Definition Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902458&loc=d3e39896-112707 + Details
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- Definition The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Definition A tax based on the assessed value of real estate by the local government. The tax is usually based on the value of property (including the land). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6419918&loc=d3e35301-107843 + Details
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