Annual report pursuant to Section 13 and 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 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Mack-Cali Realty Corporation Stockholders' Equity [Abstract]                      
Income (loss) from continuing operations attributable to common shareholders                 $ (77,028) $ 33,277 $ 50,633
Add: Noncontrolling interest in Operating Partnership (7,167) (5,313) 1,048 973 73 1,208 874 2,464 (10,459) 4,619 7,532
Income (loss) from continuing operations for diluted earnings per share                 (87,487) 37,896 58,165
Income from discontinued operations for diluted earnings per share (1,568) 49,478 17,585 5,133 (11,110) 6,341 4,335 9,137 70,628 8,703 21,888
Net income available to common shareholders                 $ (16,859) $ 46,599 $ 80,053
Weighted average common shares                 99,785 99,996 98,962
Income (loss) from continuing operations available to common shareholders $ (0.60) $ (0.45) $ 0.09 $ 0.08 $ 0.01 $ 0.10 $ 0.07 $ 0.20 $ (0.88) $ 0.38 $ 0.59
Income from discontinued operations available to common shareholders $ (0.02) $ 0.50 $ 0.17 $ 0.05 $ (0.12) $ 0.06 $ 0.04 $ 0.09 $ 0.71 $ 0.09 $ 0.22
Net income (loss) available to common shareholders $ (0.62) $ 0.05 $ 0.26 $ 0.13 $ (0.11) $ 0.16 $ 0.11 $ 0.29 $ (0.17) $ 0.47 $ 0.81