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Share Based Compensation (Assumptions Used in Monte Carlo Simulations Used to Determine Aggregate Fair Values) (Detail)
$ / shares in Units, $ in Millions
10 Months Ended 12 Months Ended
Feb. 27, 2013
shares
Dec. 31, 2015
USD ($)
$ / shares
shares
Feb. 26, 2015
Dec. 31, 2014
USD ($)
$ / shares
shares
Feb. 26, 2014
Dec. 31, 2013
USD ($)
$ / shares
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items]            
Aggregate Fair Value Of Awards On Grant Date   $ 0.6   $ 0.5   $ 0.6
Restricted Share Unit [Member]            
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items]            
RSUs granted | shares 112,898 94,014   127,353    
Aggregate Fair Value Of Awards On Grant Date   $ 2.1   $ 2.2   $ 2.0
Aggregate Fair Value Per Share Based On Monte Carlo Simulation | $ / shares   $ 22.06   $ 17.56   $ 17.40
Volatility 44.70%   25.30%   37.70%  
Risk free interest rate 0.36%   0.97%   0.68%  
PREIT Stock Beta compared to Dow Jones US Real Estate Index 1.472   1.221   1.492