Quarterly report pursuant to Section 13 or 15(d)

Mack-Cali Realty Corporation Stockholders' Equity (Schedule Of Reconciliation Of Shares Used In Basic EPS Calculation To Shares Used In Diluted EPS Calculation) (Details)

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Mack-Cali Realty Corporation Stockholders' Equity (Schedule Of Reconciliation Of Shares Used In Basic EPS Calculation To Shares Used In Diluted EPS Calculation) (Details) - shares
shares in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Mack-Cali Realty Corporation Stockholders' Equity [Abstract]        
Basic EPS shares 89,740 89,244 89,731 89,218
Add: Operating Partnership - common units 10,499 11,028 10,504 11,051
Restricted Stock Awards 55 42 52 44
Stock Options 107   72  
Diluted EPS Shares 100,401 100,314 100,359 100,313