Quarterly report pursuant to Section 13 or 15(d)

Mack-Cali Realty Corporation Stockholders' Equity (Earnings Per Share) (Narrative) (Details)

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Mack-Cali Realty Corporation Stockholders' Equity (Earnings Per Share) (Narrative) (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mack-Cali Realty Corporation Stockholders' Equity [Abstract]    
Unvested restricted stock outstanding 352,358 105,843
Dividends declared per common share $ 0.45 $ 0.45