Quarterly report pursuant to Section 13 or 15(d)

Mack-Cali Realty Corporation Stockholders' Equity (Earnings Per Share Tables - Basic Computation Of EPS) (Details)

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Mack-Cali Realty Corporation Stockholders' Equity (Earnings Per Share Tables - Basic Computation Of EPS) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mack-Cali Realty Corporation Stockholders' Equity [Abstract]    
Basic EPS, Net income (loss) $ 68,769 $ (3,325)
Add: Noncontrolling interest in consolidated joint ventures 706 490
Add (deduct): Noncontrolling interest in Operating Partnership (7,284) 314
Income (loss) available to common unitholders 62,191 (2,521)
Net income (loss) available to common shareholders $ 62,191 $ (2,521)
Weighted average common shares 89,721 89,192
Net income available to common shareholders $ 0.69 $ (0.03)