v3.3.1.900
Basis of Presentation and Significant Accounting Policies (Acquisitions and Building Properties) (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2012
USD ($)
Dec. 31, 2015
USD ($)
building
Dec. 31, 2014
USD ($)
property
Dec. 31, 2013
USD ($)
Property, Plant and Equipment [Line Items]        
Disclosure of Long Lived Assets Held-for-sale [Table Text Block]  
As of December 31, 2015, the properties listed below were classified as held for sale. We did not have any properties classified as held for sale as of December 31, 2014.

Properties
 
Submarket
 
Property Type
 
Number of Buildings
 
Rentable Square Feet (unaudited)
Torrey Santa Fe Properties (1)(2)
 
Del Mar
 
Office
 
4
 
465,812

__________________
(1)
The Torrey Santa Fe Properties include the following properties: 7525 Torrey Santa Fe, 7535 Torrey Santa Fe, 7545 Torrey Santa Fe, and 7555 Torrey Santa Fe.
(2)
In January 2016, the Company completed the sale of these properties for a total sales price of $262.3 million.
The major classes of assets and liabilities of the properties held for sale as of December 31, 2015 were as follows:

Real estate assets and other assets held for sale
(in thousands)
Land and improvements
$
10,534

Buildings and improvements
144,716

Undeveloped land and construction in progress
4,824

Total real estate held for sale
160,074

Accumulated depreciation and amortization
(46,191
)
Total real estate held for sale, net
113,883

Deferred rent receivables, net
2,500

Deferred leasing costs and acquisition-related intangible assets, net
1,115

Prepaid expenses and other assets, net
168

Real estate and other assets held for sale, net
$
117,666

 
 
Liabilities and deferred revenue of real estate assets held for sale
 
Secured debt
$
561

Accounts payable, accrued expenses and other liabilities
2,497

Deferred revenue and acquisition-related intangible liabilities, net
2,899

Rents received in advance and tenant security deposits
1,586

Liabilities and deferred revenue of real estate assets held for sale
$
7,543

As of December 31, 2015 and 2014, the following land parcels were classified as held for sale:
Properties
 
Submarket
 
Gross Site Acreage
(unaudited)
 
Sales Price
(in millions)
2015 Held for Sale
 
 
 
 
 
 
Carlsbad Oaks - Lot 7 (1)(2)
 
Carlsbad
 
7.6
 
$
4.5

 
 
 
 
 
 
 
2014 Held for Sale
 
 
 
 
 
 
17150 Von Karman
 
Irvine
 
8.5
 
$
26.0

__________________
(1)
During the year ended December 31, 2015, the Company recognized a loss relating to selling costs of approximately $0.2 million.
(2)
In January 2016, the Company completed the sale of the Carlsbad Oaks - Lot 7 land parcel.
    
Depreciation of real estate $ 145,325 $ 159,524   $ 153,841
Number of real estate properties   2 5  
Undeveloped Land [Member]        
Property, Plant and Equipment [Line Items]        
Business acquisition costs capitalized   $ 1,100 $ 4,500 $ 2,300
Building and Building Improvements [Member] | Minimum [Member]        
Property, Plant and Equipment [Line Items]        
Property depreciable lives   25 years    
Building and Building Improvements [Member] | Maximum [Member]        
Property, Plant and Equipment [Line Items]        
Property depreciable lives   40 years    
Leasehold Improvements [Member] | Minimum [Member]        
Property, Plant and Equipment [Line Items]        
Property depreciable lives   1 year    
Leasehold Improvements [Member] | Maximum [Member]        
Property, Plant and Equipment [Line Items]        
Property depreciable lives   20 years    
Lease Agreements [Member] | Minimum [Member]        
Property, Plant and Equipment [Line Items]        
Deferred lease costs amortization period   1 year    
Lease Agreements [Member] | Maximum [Member]        
Property, Plant and Equipment [Line Items]        
Deferred lease costs amortization period   20 years