Quarterly report pursuant to Section 13 or 15(d)

Mack-Cali Realty Corporation Stockholders' Equity (Schedule Of Weighted Average Assumptions) (Details)

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Mack-Cali Realty Corporation Stockholders' Equity (Schedule Of Weighted Average Assumptions) (Details) - Jun. 30, 2015
Total
Total
Time Vesting Options [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected life (in years) 6 years 6 years
Risk-free interest rate 2.04% 2.04%
Volatility 29.00% 29.00%
Dividend yield 3.50% 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 5 years 9 months 18 days
Risk-free interest rate 1.96% 1.96%
Volatility 29.00% 29.00%
Dividend yield 3.50% 3.50%