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Organization and Business - Additional Information (Details)
ft² in Millions
12 Months Ended
Nov. 25, 2014
shares
Dec. 31, 2015
ft²
Properties
Nov. 24, 2014
$ / shares
Nov. 23, 2014
Properties
Fund
Real Estate Properties [Line Items]        
Number of office properties | Properties   12    
Area of office properties | ft²   10.4    
Percentage of ownership in operating partnership   80.40%    
Predecessor [Member]        
Real Estate Properties [Line Items]        
Number of office properties | Properties       12
Number of real estate funds | Fund       15
Predecessor [Member] | Primary Funds [Member]        
Real Estate Properties [Line Items]        
Number of real estate funds | Fund       9
Predecessor [Member] | Parallel Funds [Member]        
Real Estate Properties [Line Items]        
Number of real estate funds | Fund       6
Predecessor [Member] | Partially Owned Properties [Member]        
Real Estate Properties [Line Items]        
Number of office properties | Properties       3
IPO [Member]        
Real Estate Properties [Line Items]        
Common shares issued, initial public offering, shares | shares 150,650,000      
Common stock, share price | $ / shares     $ 17.50