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Segment Information - Reconciliation of Consolidated Net Income to Consolidated NOI (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Segment Reporting [Abstract] |  |  |  |
Net income | $ 19,046 | $ 7,884 | $ 48,015 | $ 52,871
Plus: |  |  |  |
Interest expense | 19,732 | 20,814 | 61,473 | 64,334
Interest expense - amortization of deferred financing costs | 577 | 645 | 1,807 | 2,063
Interest expense - financing obligation | 0 | 156 | 0 | 679
Depreciation and amortization | 42,429 | 46,956 | 132,584 | 142,736
General and administrative expenses | 5,813 | 5,515 | 21,797 | 20,711
Equity in loss of Real Estate Ventures | 5,723 | 7,254 | 5,387 | 9,323
Provision for impairment | 0 | 0 | 3,057 | 13,069
Loss on early extinguishment of debt | 0 | 0 | 0 | 66,590
Less: |  |  |  |
Interest income | 79 | 291 | 635 | 970
Income tax benefit | 793 | 0 | 1,032 | 0
Net gain (loss) on disposition of real estate | 0 | (104) | 8,411 | 114,625
Net gain on sale of undepreciated real estate | 953 | 188 | 953 | 188
Net gain on Real Estate Venture transactions | 13,758 | 10,472 | 28,340 | 19,529
Consolidated net operating income | $ 77,737 | $ 78,377 | $ 234,749 | $ 237,064

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