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Schedule III: Real estate and Accumulated depreciation (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
REAL ESTATE: |  |  |  |
Encumbrances | $ 1,252,440 |  |  |
Initial cost of Land | 21,593 |  |  |
Initial cost of Building, Leaseholds and Leasehold improvements | 26,239 |  |  |
Costs capitalized subsequent to acquisition | 989,536 |  |  |
Carrying amount of Land | 44,971 |  |  |
Carrying amount of Buildings and Leasehold improvements | 988,846 |  |  |
Development and Construction in progress | 3,551 |  |  |
Total | 1,037,368 | $ 1,033,551 | $ 1,029,472 | $ 993,927
Accumulated Depreciation and Amortization | 283,044 | $ 252,737 | $ 225,533 | $ 210,025
Deferred debt issuance costs, net | 12,218 |  |  |
Differences between book and tax basis | 199,268 |  |  |
Other Properties |  |  |  |
REAL ESTATE: |  |  |  |
Encumbrances | 0 |  |  |
Initial cost of Land | 167 |  |  |
Initial cost of Building, Leaseholds 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 |  |  |  |
REAL ESTATE: |  |  |  |
Encumbrances | $ 78,246 |  |  |
Initial cost of Land | 1,647 |  |  |
Initial cost of Building, Leaseholds and Leasehold improvements | 8,953 |  |  |
Costs capitalized subsequent to acquisition | 53,390 |  |  |
Carrying amount of Land | 1,647 |  |  |
Carrying amount of Buildings and Leasehold improvements | 62,268 |  |  |
Development and Construction in progress | 75 |  |  |
Total | 63,990 |  |  |
Accumulated Depreciation and Amortization | $ 33,073 |  |  |
Date of construction | 1959 |  |  |
Date acquired | 1992 |  |  |
New York | Rego Park I | Minimum |  |  |  |
REAL ESTATE: |  |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |  |
New York | Rego Park I | Maximum |  |  |  |
REAL ESTATE: |  |  |  |
Property, Plant and Equipment, Useful Life | 39 years |  |  |
New York | Rego Park II | Retail space |  |  |  |
REAL ESTATE: |  |  |  |
Encumbrances | $ 256,194 |  |  |
Initial cost of Land | 3,127 |  |  |
Initial cost of Building, Leaseholds and Leasehold improvements | 1,467 |  |  |
Costs capitalized subsequent to acquisition | 388,890 |  |  |
Carrying amount of Land | 3,127 |  |  |
Carrying amount of Buildings and Leasehold improvements | 390,118 |  |  |
Development and Construction in progress | 239 |  |  |
Total | 393,484 |  |  |
Accumulated Depreciation and Amortization | $ 83,963 |  |  |
Date of construction | 2009 |  |  |
Date acquired | 1992 |  |  |
New York | Rego Park II | Retail space | Minimum |  |  |  |
REAL ESTATE: |  |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |  |
New York | Rego Park II | Retail space | Maximum |  |  |  |
REAL ESTATE: |  |  |  |
Property, Plant and Equipment, Useful Life | 40 years |  |  |
New York | Alexander apartment tower |  |  |  |
REAL ESTATE: |  |  |  |
Encumbrances | $ 0 |  |  |
Initial cost of Land | 0 |  |  |
Initial cost of Building, Leaseholds 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 | $ 9,856 |  |  |
Date of construction | 2016 |  |  |
Date acquired | 1992 |  |  |
New York | Alexander apartment tower | Minimum |  |  |  |
REAL ESTATE: |  |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |  |
New York | Alexander apartment tower | Maximum |  |  |  |
REAL ESTATE: |  |  |  |
Property, Plant and Equipment, Useful Life | 39 years |  |  |
New York | Rego Park III |  |  |  |
REAL ESTATE: |  |  |  |
Encumbrances | $ 0 |  |  |
Initial cost of Land | 779 |  |  |
Initial cost of Building, Leaseholds and Leasehold improvements | 0 |  |  |
Costs capitalized subsequent to acquisition | 3,740 |  |  |
Carrying amount of Land | 779 |  |  |
Carrying amount of Buildings and Leasehold improvements | 503 |  |  |
Development and Construction in progress | 3,237 |  |  |
Total | 4,519 |  |  |
Accumulated Depreciation and Amortization | $ 228 |  |  |
Date acquired | 1992 |  |  |
New York | Rego Park III | Minimum |  |  |  |
REAL ESTATE: |  |  |  |
Property, Plant and Equipment, Useful Life | 5 years |  |  |
New York | Rego Park III | Maximum |  |  |  |
REAL ESTATE: |  |  |  |
Property, Plant and Equipment, Useful Life | 15 years |  |  |
New York | Flushing property |  |  |  |
REAL ESTATE: |  |  |  |
Encumbrances | $ 0 |  |  |
Initial cost of Land | 0 |  |  |
Initial cost of Building, Leaseholds 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 | $ 968 |  |  |
Date of construction | 1975 |  |  |
Date acquired | 1992 |  |  |
New York | Lexington Avenue |  |  |  |
REAL ESTATE: |  |  |  |
Encumbrances | $ 850,000 |  |  |
Initial cost of Land | 14,432 |  |  |
Initial cost of Building, Leaseholds and Leasehold improvements | 12,355 |  |  |
Costs capitalized subsequent to acquisition | 416,002 |  |  |
Carrying amount of Land | 27,497 |  |  |
Carrying amount of Buildings and Leasehold improvements | 415,292 |  |  |
Development and Construction in progress | 0 |  |  |
Total | 442,789 |  |  |
Accumulated Depreciation and Amortization | $ 154,956 |  |  |
Date of construction | 2003 |  |  |
Date acquired | 1992 |  |  |
New York | Lexington Avenue | Minimum |  |  |  |
REAL ESTATE: |  |  |  |
Property, Plant and Equipment, Useful Life | 9 years |  |  |
New York | Lexington Avenue | Maximum |  |  |  |
REAL ESTATE: |  |  |  |
Property, Plant and Equipment, Useful Life | 39 years |  |  |
New Jersey | Paramus |  |  |  |
REAL ESTATE: |  |  |  |
Encumbrances | $ 68,000 |  |  |
Initial cost of Land | 1,441 |  |  |
Initial cost of Building, Leaseholds 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 |  |  |

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