Quarterly report pursuant to Section 13 or 15(d)

Mack-Cali Realty Corporation Stockholders' Equity (Schedule Of Stock Option Plans) (Details)

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Mack-Cali Realty Corporation Stockholders' Equity (Schedule Of Stock Option Plans) (Details) (USD $)
In Thousands, except Share data
6 Months Ended
Jun. 30, 2011
Mack-Cali Realty Corporation Stockholders' Equity  
Shares Under Options - Outstanding as January 1, 2011 295,676
Share Under Options - Exercised (53,010)
Shares Under Options - Outstanding at June 30, 2011 242,666
Shares Under Options - Options exercisable at June 30, 2011 242,666
Shares Under Options - Available for grant at June 30, 2011 2,425,073
Weighted Average Exercise Price - Outstanding as January 1, 2011 $ 29.05
Weighted Average Exercise price - Exercised $ 27.60
Weighted Average Exercise price - Outstanding at June 30, 2011 $ 29.37
Aggregate Intrinsic Value, Outstanding as January 1, 2011 $ 1,186
Aggregate Intrinsic Value, Outstanding at June 30, 2011 $ 867
Outstanding stock option price range, lower range $ 28.47
Outstanding stock option price range, upper range $ 45.47