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v3.10.0.1

Segment Reporting (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Reconciliation of NOI to net income |  |  |  |
Net income | $ 192,407 | $ 238,199 | $ 588,540 | $ 639,174
Indirect operating expenses, net of corporate income | 18,855 | 15,752 | 55,850 | 48,472
Investments and investment management expense | 1,726 | 1,501 | 4,898 | 4,277
Expensed transaction, development and other pursuit costs, net of recoveries | 1,020 | 789 | 2,709 | 2,087
Interest expense, net | 54,097 | 47,741 | 165,795 | 147,138
Loss on extinguishment of debt, net | 1,678 | 0 | 2,717 | 24,162
General and administrative expense | 13,905 | 11,655 | 42,013 | 38,808
Equity in income of unconsolidated real estate entities | (10,031) | (52,568) | (12,560) | (70,386)
Depreciation expense | 156,538 | 144,990 | 472,282 | 427,050
Income tax expense | 29 | 24 | 87 | 102
Casualty and impairment (gain) loss, net | (554) | 0 | (612) | 11,688
Gain on sale of communities | (27,243) | (27,738) | (132,444) | (159,754)
(Gain) loss on other real estate transactions, net | (12) | 120 | (335) | (246)
Net operating income from real estate assets sold or held for sale | (2,545) | (10,340) | (15,913) | (35,162)
Net operating income | $ 399,870 | 370,125 | $ 1,173,027 | 1,077,410
Avalon Maplewood [Member] |  |  |  |
Business Interruption Loss [Line Items] |  |  |  |
Gain on Business Interruption Insurance Recovery |  | $ 3,495 |  | 3,495
Reconciliation of NOI to net income |  |  |  |
Casualty and impairment (gain) loss, net |  |  |  | $ 2,338

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