Dispositions (Tables)

9 Months Ended

Sep. 30, 2015

Discontinued Operations and Disposal Groups [Abstract]

Disclosure of Long Lived Assets Held-for-sale [Table Text Block]

The following table summarizes the operating properties sold during the nine months ended September 30, 2015:

Location	Property Type	Month of Disposition	Number of Buildings	Rentable Square Feet
15050 NE 36th Street, Redmond, WA	Office	April	1	122,103
San Diego Properties - Tranche 1 (1)	Office	April	3	384,468
San Diego Properties - Tranche 2 (2)	Office	July	6	539,823
Total Dispositions			10	1,046,394

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(1) The San Diego Properties - Tranche 1 include the following: 10770 Wateridge Circle, 6200 Greenwich Drive, and 6220 Greenwich Drive.

(2) The San Diego Properties - Tranche 2 include the following: 6260 Sequence Drive, 6290 Sequence, Drive, 6310 Sequence Drive, 6340 Sequence Drive, 6350 Sequence Drive, and 4921 Directors Place.