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 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Mack-Cali Realty Corporation Stockholders' Equity [Abstract]        
Basic EPS shares 89,249 88,875 89,229 88,621
Add: Operating Partnership - common units 10,923 11,120 11,007 11,334
Restricted Stock Awards   57   59
Diluted EPS Shares 100,172 100,052 100,236 100,014