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Equity - Common Stock Activity (Details) - USD ($)
 12 Months Ended
Mar. 03, 2017
Jan. 10, 2017
Nov. 28, 2016
Jul. 21, 2016
May 16, 2016
Apr. 01, 2015
Jan. 20, 2015
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Class of Stock [Line Items]                    
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)   18,673,808                
Proceeds from issuance of common stock, net               $ 647,382,000 $ 1,449,581,000 $ 380,620,000
Repayments of unsecured debt $ 255,000,000                  
ATM Program                    
Class of Stock [Line Items]                    
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)               0 165,000 0
Proceeds from issuance of common stock, net               $ 20,100,000    
Number of share authorized, value               $ 125,000,000.0    
Minimum | ATM Program                    
Class of Stock [Line Items]                    
Public offering price per share (in dollars per share)                 $ 33.54  
Maximum | ATM Program                    
Class of Stock [Line Items]                    
Public offering price per share (in dollars per share)                 $ 33.95  
Hudson Pacific Properties, Inc.                    
Class of Stock [Line Items]                    
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)   8,881,575                
Proceeds from issuance of common stock, net   $ 310,900,000                
Common Stock                    
Class of Stock [Line Items]                    
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares) 9,775,000   17,533,099 19,195,373 10,117,223 8,626,311 12,650,000 18,656,575 47,010,695 12,650,000
Public offering price per share (in dollars per share)             $ 31.75      
Proceeds from issuance of common stock, net             $ 385,600,000      
Common Stock | Public Offering                    
Class of Stock [Line Items]                    
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)             11,000,000      
Common Stock | Underwriter option                    
Class of Stock [Line Items]                    
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)             1,650,000