Annual report pursuant to Section 13 and 15(d)

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

v2.4.0.8
Mack-Cali Realty Corporation Stockholders' Equity (Earnings Per Share) (Narrative) (Details) (USD $)
 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
Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Anti-dilutive securities excluded from the computation of earnings per share                 15,000 183,870 15,000  
Unvested restricted stock outstanding 153,560 [1]       134,328       153,560 [1] 134,328 187,447 239,759
Dividends declared per common share $ 0.30 $ 0.30 $ 0.30 $ 0.45 $ 0.45 $ 0.45 $ 0.45 $ 0.45 $ 1.35 $ 1.80 $ 1.80  
Restricted Stock [Member]
                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Anti-dilutive securities excluded from the computation of earnings per share                 409,294      
Unvested restricted stock outstanding 409,294       134,328       409,294 134,328 187,447  
[1] Includes 63,933 Performance Shares which were granted in 2013 for which the performance goals were not met.