Quarterly report pursuant to Section 13 or 15(d)

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

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Mack-Cali Realty Corporation Stockholders' Equity (Earnings Per Share Tables - Diluted Computation Of EPS) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Mack-Cali Realty Corporation Stockholders' Equity [Abstract]        
Income (loss) from continuing operations attributable to common shareholders $ (38,894) $ 8,705 $ (24,249) $ 32,731
Add: Noncontrolling interest in Operating Partnership (5,314) 1,207 (3,295) 4,543
Income (loss) from continuing operations for diluted earnings per share (44,208) 9,912 (27,544) 37,274
Income from discontinued operations for diluted earnings per share 49,485 6,349 72,218 19,836
Net income available to common shareholders $ 5,277 $ 16,261 $ 44,674 $ 57,110
Weighted average common shares 99,787 100,075 99,778 100,071
Income (loss) from continuing operations available to common shareholders $ (0.44) $ 0.10 $ (0.28) $ 0.37
Income from discontinued operations available to common shareholders $ 0.49 $ 0.06 $ 0.73 $ 0.20
Net income available to common shareholders $ 0.05 $ 0.16 $ 0.45 $ 0.57