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 $)
 6 Months Ended
Jun. 30, 2013
Mack-Cali Realty Corporation Stockholders' Equity [Abstract]  
Shares Under Options - Outstanding, beginning balance 183,870
Shares Under Options - Lapsed or Cancelled (168,870)
Shares Under Options - Outstanding, ending balance 15,000
Shares Under Options - Options exercisable 15,000
Shares Under Options - Available for grant 4,600,000
Weighted Average Exercise Price - Outstanding, beginning balance $ 29.51
Weighted Average Exercise Price - Lapsed or Cancelled $ 28.53
Weighted Average Exercise Price - Outstanding, ending balance $ 40.54
Outstanding stock option price range, lower range $ 35.59
Outstanding stock option price range, upper range $ 45.47