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v3.3.0.814

Significant Tenants (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Oct. 31, 2014 ft² | Sep. 30, 2015 USD ($) | Sep. 30, 2014 USD ($) | Sep. 30, 2015 USD ($) | Sep. 30, 2014 USD ($)
Real Estate Properties [Line Items] |  |  |  |  |
Real estate revenue, net (in dollars) |  | $ 52,414 | $ 50,077 | $ 155,096 | $ 149,528
Bloomberg [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Leases Expiration Date | December 2015 |  |  |  |
Bloomberg [Member] | 731 Lexington Avenue [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Square Footage of Real Estate Property (in square feet) | ft² | 188,608 |  |  |  |
Lease renewal term | 5 years |  |  |  |
Bloomberg [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Percentage Of Minimum Revenue Threshold Contributed By One Tenant (in percentage) |  |  |  | 10.00% |
Bloomberg [Member] | Customer Concentration Risk [Member] | Sales Revenue Services Net [Member] |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |
Real estate revenue, net (in dollars) |  |  |  | $ 70,702 | $ 67,488
Percentage Rent Contributed By Tenant |  |  |  | 45.00% | 45.00%

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