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Real Estate Investments - Purchase Price Allocation (Details) - USD ($) $ in Thousands | Jun. 22, 2015 | Dec. 19, 2013
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Broadmoor Austin Associates [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Building, land and improvements |  | $ 163,271 |
Land inventory |  | 6,045 |
Intangible assets acquired | [1] | 50,637 |
Below market lease liabilities assumed | [2] | (8,600) |
Total purchase price |  | 211,353 |
Return of existing equity method investment |  | (66,324) |
Gain on remeasurement |  | (758) |
Net working capital assumed |  | (450) |
Total cash payment at settlement |  | $ 143,821 |
Commerce Square [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Building, land and improvements |  |  | $ 255,705
Intangible assets acquired |  |  | 85,036
Below market lease liabilities assumed |  |  | (8,637)
Total purchase price |  |  | 332,104
Mortgage debt assumed - at fair value | [3] |  | (238,082)
Net working capital assumed |  |  | 10,423
Non-controlling interest |  |  | (946)
Total cash payment at settlement |  |  | 73,075
Return of existing equity method investment |  |  | $ (30,424)
[1] | Weighted average amortization period of 4.0 years.
[2] | Weighted average amortization period of 1.5 years
[3] | Principal outstanding on assumed mortgage debt at December 19, 2013 was $237.1 million.

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