Quarterly report pursuant to Section 13 or 15(d)

Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Schedule Of Stock Option Plans) (Details)

v3.5.0.2
Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Schedule Of Stock Option Plans) (Details)
$ / shares in Units, $ in Thousands
 9 Months Ended
Sep. 30, 2016
USD ($)
$ / shares
shares
Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital [Abstract]  
Shares Under Options - Outstanding, beginning balance | shares 805,000
Shares Under Options - Lapsed or Cancelled | shares
Shares Under Options - Outstanding, ending balance | shares 805,000
Shares Under Options - Options exercisable | shares 538,334
Shares Under Options - Available for grant | shares 2,728,507
Weighted Average Exercise Price - Outstanding, beginning balance | $ / shares $ 17.33
Weighted Average Exercise Price - Lapsed or Cancelled | $ / shares
Weighted Average Exercise Price - Outstanding, ending balance | $ / shares $ 17.33
Aggregate Intrinsic Value, Outstanding, beginning balance | $ $ 4,843
Aggregate Intrinsic Value, Outstanding, ending balance | $ $ 7,958
Outstanding stock option price range, lower range | $ / shares $ 17.31
Outstanding stock option price range, upper range | $ / shares $ 21.25