Annual report pursuant to Section 13 and 15(d)

Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Schedule Of Weighted Average Assumptions) (Details)

v3.6.0.2
Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Schedule Of Weighted Average Assumptions) (Details)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected life (in years)   6 years
Risk-free interest rate   1.50%
Volatility   20.26%
Dividend yield   5.65%
Time Vesting Options [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected life (in years) 6 years  
Risk-free interest rate 2.04%  
Volatility 29.00%  
Dividend yield 3.50%  
Price Vesting Options [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected life (in years) 5 years 9 months 18 days  
Risk-free interest rate 1.96%  
Volatility 29.00%  
Dividend yield 3.50%