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Schedule III: Real estate and Accumulated depreciation (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Encumbrances | $ 1,170,544 |  |  |
Initial cost of Land | 21,593 |  |  |
Initial cost of Building and Leasehold improvements | 26,239 |  |  |
Costs capitalized subsequent to acquisition | 979,859 |  |  |
Carrying amount of Land | 44,971 |  |  |
Carrying amount of Buildings and Leasehold improvements | 978,474 |  |  |
Development and Construction in progress | 4,246 |  |  |
Total | 1,027,691 | $ 1,037,368 | $ 1,033,551 | $ 1,029,472
Accumulated Depreciation and Amortization | 297,421 | 283,044 | $ 252,737 | $ 225,533
Deferred debt issuance costs, net | 9,010 |  |  |
Differences between book and tax basis | 186,559 |  |  |
Other Properties |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Encumbrances | 0 |  |  |
Initial cost of Land | 167 |  |  |
Initial cost of Building and Leasehold improvements | 1,804 |  |  |
Costs capitalized subsequent to acquisition | (1,804) |  |  |
Carrying amount of Land | 167 |  |  |
Carrying amount of Buildings and Leasehold improvements | 0 |  |  |
Development and Construction in progress | 0 |  |  |
Total | 167 |  |  |
Accumulated Depreciation and Amortization | $ 0 |  |  |
Date acquired | 1992 |  |  |
New York | Rego Park I |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Encumbrances | $ 0 |  |  |
Initial cost of Land | 1,647 |  |  |
Initial cost of Building and Leasehold improvements | 8,953 |  |  |
Costs capitalized subsequent to acquisition | 54,456 |  |  |
Carrying amount of Land | 1,647 |  |  |
Carrying amount of Buildings and Leasehold improvements | 62,836 |  |  |
Development and Construction in progress | 573 |  |  |
Total | 65,056 |  |  |
Accumulated Depreciation and Amortization | $ 34,987 |  |  |
Date of construction | 1959 |  |  |
Date acquired | 1992 |  |  |
New York | Rego Park I | Minimum |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |  |
New York | Rego Park I | Maximum |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Property, Plant and Equipment, Useful Life | 39 years |  |  |
New York | Rego Park II | Retail space |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Encumbrances | $ 252,544 |  |  |
Initial cost of Land | 3,127 |  |  |
Initial cost of Building and Leasehold improvements | 1,467 |  |  |
Costs capitalized subsequent to acquisition | 387,884 |  |  |
Carrying amount of Land | 3,127 |  |  |
Carrying amount of Buildings and Leasehold improvements | 389,191 |  |  |
Development and Construction in progress | 160 |  |  |
Total | 392,478 |  |  |
Accumulated Depreciation and Amortization | $ 93,011 |  |  |
Date of construction | 2009 |  |  |
Date acquired | 1992 |  |  |
New York | Rego Park II | Retail space | Minimum |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |  |
New York | Rego Park II | Retail space | Maximum |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Property, Plant and Equipment, Useful Life | 40 years |  |  |
New York | Alexander apartment tower |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Encumbrances | $ 0 |  |  |
Initial cost of Land | 0 |  |  |
Initial cost of Building and Leasehold improvements | 0 |  |  |
Costs capitalized subsequent to acquisition | 119,112 |  |  |
Carrying amount of Land | 0 |  |  |
Carrying amount of Buildings and Leasehold improvements | 119,112 |  |  |
Development and Construction in progress | 0 |  |  |
Total | 119,112 |  |  |
Accumulated Depreciation and Amortization | $ 13,631 |  |  |
Date of construction | 2016 |  |  |
Date acquired | 1992 |  |  |
New York | Alexander apartment tower | Minimum |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |  |
New York | Alexander apartment tower | Maximum |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Property, Plant and Equipment, Useful Life | 39 years |  |  |
New York | Rego Park III |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Encumbrances | $ 0 |  |  |
Initial cost of Land | 779 |  |  |
Initial cost of Building and Leasehold improvements | 0 |  |  |
Costs capitalized subsequent to acquisition | 4,016 |  |  |
Carrying amount of Land | 779 |  |  |
Carrying amount of Buildings and Leasehold improvements | 503 |  |  |
Development and Construction in progress | 3,513 |  |  |
Total | 4,795 |  |  |
Accumulated Depreciation and Amortization | $ 259 |  |  |
Date acquired | 1992 |  |  |
New York | Rego Park III | Minimum |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Property, Plant and Equipment, Useful Life | 5 years |  |  |
New York | Rego Park III | Maximum |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |  |
New York | Flushing property |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Encumbrances | $ 0 |  |  |
Initial cost of Land | 0 |  |  |
Initial cost of Building and Leasehold improvements | 1,660 |  |  |
Costs capitalized subsequent to acquisition | (107) |  |  |
Carrying amount of Land | 0 |  |  |
Carrying amount of Buildings and Leasehold improvements | 1,553 |  |  |
Development and Construction in progress | 0 |  |  |
Total | 1,553 |  |  |
Accumulated Depreciation and Amortization | $ 1,028 |  |  |
Date of construction | 1975 |  |  |
Date acquired | 1992 |  |  |
New York | Lexington Avenue |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Encumbrances | $ 850,000 |  |  |
Initial cost of Land | 14,432 |  |  |
Initial cost of Building and Leasehold improvements | 12,355 |  |  |
Costs capitalized subsequent to acquisition | 405,989 |  |  |
Carrying amount of Land | 27,497 |  |  |
Carrying amount of Buildings and Leasehold improvements | 405,279 |  |  |
Development and Construction in progress | 0 |  |  |
Total | 432,776 |  |  |
Accumulated Depreciation and Amortization | $ 154,505 |  |  |
Date of construction | 2003 |  |  |
Date acquired | 1992 |  |  |
New York | Lexington Avenue | Minimum |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Property, Plant and Equipment, Useful Life | 9 years |  |  |
New York | Lexington Avenue | Maximum |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Property, Plant and Equipment, Useful Life | 39 years |  |  |
New Jersey | Paramus |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Encumbrances | $ 68,000 |  |  |
Initial cost of Land | 1,441 |  |  |
Initial cost of Building and Leasehold improvements | 0 |  |  |
Costs capitalized subsequent to acquisition | 10,313 |  |  |
Carrying amount of Land | 11,754 |  |  |
Carrying amount of Buildings and Leasehold improvements | 0 |  |  |
Development and Construction in progress | 0 |  |  |
Total | 11,754 |  |  |
Accumulated Depreciation and Amortization | $ 0 |  |  |
Date acquired | 1992 |  |  |
Participation Agreement | Rego Park II |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation |  |  |  |
Loan participation balance | $ 195,708 | $ 198,537 |  |

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