XML 110 R88.htm IDEA: XBRL DOCUMENT v3.20.4
Noncontrolling Interests on the Company’s Consolidated Financial Statements - Narrative (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
d
$ / shares
shares
Dec. 31, 2019
USD ($)
$ / shares
shares
Dec. 31, 2018
shares
Noncontrolling Interest [Line Items]      
Conversion ratio 1    
Common stock, par value (in dollars per share) | $ / shares $ 0.01 $ 0.01  
Trading days | d 10    
Aggregate value upon redemption of outstanding noncontrolling common units $ 65,400 $ 167,700  
Noncontrolling interest in consolidated subsidiary $ 197,503 $ 195,431  
Common units [Member] | Kilroy Realty L.P. [Member]      
Noncontrolling Interest [Line Items]      
Common units outstanding held by common limited partners (in units) | shares 1,150,574 2,023,287  
Conversion ratio 1    
Common Stock [Member]      
Noncontrolling Interest [Line Items]      
Exchange of common units of the Operating Partnership (in units) | shares 872,713 2,000 51,906
Operating Partnership [Member]      
Noncontrolling Interest [Line Items]      
Ownership interest 99.00% 98.10%  
Non-affiliated Investors and Certain Executive Officersand Directors of the Company [Member]      
Noncontrolling Interest [Line Items]      
Ownership interest of noncontrolling interest 1.00% 1.90%  
101 First LLC and 303 Second LLC [Member]      
Noncontrolling Interest [Line Items]      
Ownership interest 56.00%    
101 First LLC and 303 Second LLC [Member] | Variable Interest Entity, Primary Beneficiary [Member]      
Noncontrolling Interest [Line Items]      
Noncontrolling interest in consolidated subsidiary $ 191,900 $ 189,600  
Redwood LLC [Member]      
Noncontrolling Interest [Line Items]      
Ownership interest 93.00%    
Noncontrolling interest in consolidated subsidiary $ 5,600 $ 5,800