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 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Mack-Cali Realty Corporation Stockholders' Equity [Abstract]        
Net income $ 54,366 $ 39,389 $ 123,135 $ 36,064
Add: Noncontrolling interest in consolidated joint ventures (311) 373 395 863
Add (deduct): Noncontrolling interest in Operating Partnership (5,662) (4,383) (12,946) (4,069)
Net income available to common shareholders $ 48,393 $ 35,379 $ 110,584 $ 32,858
Weighted average common shares 89,740 89,244 89,731 89,218
Net income available to common shareholders $ 0.54 $ 0.40 $ 1.23 $ 0.37