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
Mar. 31, 2012
Mar. 31, 2011
Mack-Cali Realty Corporation Stockholders' Equity [Abstract]    
Income from continuing operations available to common shareholders $ 22,414 $ 15,608
Add: Noncontrolling interest in Operating Partnership 3,113 2,437
Income from continuing operations for diluted earnings per share 25,527 18,045
Income (loss) from discontinued operations for diluted earnings per share 3,819 140
Net income available to common shareholders $ 29,346 $ 18,185
Weighted average common shares 100,062 96,015
Income from continuing operations available to common shareholders $ 0.25 $ 0.19
Income (loss) from discontinued operations available to common shareholders $ 0.04   
Net income available to common shareholders $ 0.29 $ 0.19