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Investment in Unconsolidated Real Estate Ventures - Summary of Results of Operations of Real Estate Ventures with Interests (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Schedule Of Equity Method Investments [Line Items] |  |  |
Equity in income (loss) of Real Estate Ventures |  | $ (1,358) | $ (825)
evo at Cira Centre South [Member] |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Revenue | [1] | 0 | 995
Operating expenses | [1] | 0 | (250)
Interest expense, net | [1] | 0 | (388)
Depreciation and amortization | [1] | 0 | (376)
Loss on early extinguishment of debt | [1] |  | (718)
Net income (loss) | [1] | $ 0 | $ (737)
Ownership interest % | [1] | 50.00% | 50.00%
Company's share of net income (loss) | [1] | $ 0 | $ (369)
Basis adjustments and other | [1] | 0 | 11
Equity in income (loss) of Real Estate Ventures | [1] | 0 | (358)
MAP Venture [Member] |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Revenue |  | 18,288 | 17,080
Operating expenses |  | (12,155) | (10,307)
Interest expense, net |  | (2,536) | (3,791)
Depreciation and amortization |  | (6,349) | (4,701)
Loss on early extinguishment of debt |  |  | 0
Net income (loss) |  | $ (2,752) | $ (1,719)
Ownership interest % |  | 50.00% | 50.00%
Company's share of net income (loss) |  | $ (1,376) | $ (860)
Basis adjustments and other |  | (56) | 7
Equity in income (loss) of Real Estate Ventures |  | (1,432) | (853)
Other [Member] |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Revenue |  | 16,771 | 24,746
Operating expenses |  | (6,563) | (10,211)
Interest expense, net |  | (1,384) | (3,947)
Depreciation and amortization |  | (7,363) | (9,307)
Loss on early extinguishment of debt |  |  | 0
Net income (loss) |  | 1,461 | 1,281
Company's share of net income (loss) |  | 64 | 523
Basis adjustments and other |  | 10 | (137)
Equity in income (loss) of Real Estate Ventures |  | 74 | 386
Unconsolidated Real Estate Ventures [Member] |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Revenue |  | 35,059 | 42,821
Operating expenses |  | (18,718) | (20,768)
Interest expense, net |  | (3,920) | (8,126)
Depreciation and amortization |  | (13,712) | (14,384)
Loss on early extinguishment of debt |  |  | (718)
Net income (loss) |  | (1,291) | (1,175)
Company's share of net income (loss) |  | (1,312) | (706)
Basis adjustments and other |  | (46) | (119)
Equity in income (loss) of Real Estate Ventures |  | $ (1,358) | $ (825)
[1] | The Company sold its 50% ownership interest in evo at Cira Centre South Venture during the first quarter of 2018.

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