Earnings Per Share - Summary of Computation of Earnings Per Share (Details) - Jun. 30, 2015 - USD ($) $ / shares in Units, $ in Thousands	Total	Total
Numerator:
Net loss attributable to Paramount Group, Inc. - basic and diluted	$ (4,709)	$ (14,440)
Denominator:
Denominator for basic loss per share - weighted average shares	212,106,718	212,106,718
Denominator for diluted loss per share - weighted average shares	212,106,718	212,106,718
Loss per share - basic and diluted	$ (0.02)	$ (0.07)