XML 83 R44.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
SIGNIFICANT ACCOUNTING POLICIES (Details)
12 Months Ended
Dec. 31, 2019
a
Integer
Dec. 31, 2018
Dec. 31, 2017
Integer
Controlling interest Joint ventures [Abstract]      
Percentage of assets, liabilities, revenues, and expenses of the buildings held in joint ventures with the noncontrolling interests 100.00%    
Number of new joint venture agreements 2    
University Business Center 120 and 130 [Member]      
Controlling interest Joint ventures [Abstract]      
Controlling interest in joint ventures (in hundredths)   80.00% 80.00%
University Business Center [Member]      
Controlling interest Joint ventures [Abstract]      
Noncontrolling Interest in Joint Venture Investment Ownership Percentage     20.00%
Number of buildings owned in a joint venture agreement     2
Total number of buildings     4
University Business Center 125 and 175 [Member]      
Controlling interest Joint ventures [Abstract]      
Controlling interest in joint ventures (in hundredths)     100.00%
University Business Center 120 [Member]      
Controlling interest Joint ventures [Abstract]      
Controlling interest in joint ventures (in hundredths) 80.00%    
Industry Distribution Center II - undivided tenant [Member]      
Tenant-in-common interest [Abstract]      
Equity method of accounting is used for undivided tenant-in-common interest in Industry Distribution Center II (in hundredths) 50.00%    
Real Estate Properties [Domain] | Miramar Land [Member]      
Controlling interest Joint ventures [Abstract]      
Size (in acres) of land acquired | a 6.5    
Controlling interest in joint ventures (in hundredths) 95.00%    
Real Estate Properties [Domain] | Otay Mesa Land      
Controlling interest Joint ventures [Abstract]      
Size (in acres) of land acquired | a 41.6    
Controlling interest in joint ventures (in hundredths) 99.00%