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Segment Information - Reconciliation of Consolidated NOI to Consolidated Net Income (Loss) (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jan. 14, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Segment Reporting [Abstract] |  |  |  |  |  |
Consolidated net operating income |  | $ 78,377 |  | $ 93,967 | $ 237,064 | $ 272,974
Less: |  |  |  |  |  |
Interest expense |  | (20,814) |  | (27,900) | (64,334) | (83,971)
Interest expense - amortization of deferred financing costs |  | (645) |  | (1,010) | (2,063) | (3,377)
Interest expense - financing obligation |  | (156) |  | (296) | (679) | (906)
Depreciation and amortization |  | (46,956) |  | (58,314) | (142,736) | (160,355)
General and administrative expenses |  | (5,515) |  | (6,127) | (20,711) | (21,554)
Equity in loss of real estate ventures |  | (7,254) |  | (1,093) | (9,323) | (1,835)
Provision for impairment |  | 0 | $ (1,800) | 0 | (13,069) | (2,508)
Loss on early extinguishment of debt | $ (66,600) | 0 |  | 0 | (66,590) | 0
Plus: |  |  |  |  |  |
Interest income |  | 291 |  | 126 | 970 | 1,189
Tax credit transaction income |  | 0 |  | 11,853 | 0 | 11,853
Net gain (loss) on disposition of real estate |  | (104) |  | 6,083 | 114,625 | 16,673
Net gain on sale of undepreciated real estate |  | 188 |  | 3,019 | 188 | 3,019
Net gain from remeasurement of investments in Real Estate Ventures |  | 0 |  | 0 | 0 | 758
Net gain on Real Estate Venture transactions |  | 10,472 |  | 0 | 19,529 | 0
Net income |  | $ 7,884 |  | $ 20,308 | $ 52,871 | $ 31,960

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