Annual report pursuant to Section 13 and 15(d)

Mack-Cali Realty Corporation Stockholders' Equity (Restricted Stock Awards And TSR-Based Awards) (Narrative) (Details)

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Mack-Cali Realty Corporation Stockholders' Equity (Restricted Stock Awards And TSR-Based Awards) (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2013
Restricted Stock [Member]
Dec. 31, 2012
Restricted Stock [Member]
Dec. 31, 2011
Restricted Stock [Member]
Dec. 31, 2013
Restricted Stock [Member]
Minimum [Member]
Dec. 31, 2013
Restricted Stock [Member]
Maximum [Member]
Dec. 31, 2013
Ratified Restricted Stock Awards [Member]
Minimum [Member]
Dec. 31, 2013
Ratified Restricted Stock Awards [Member]
Maximum [Member]
Dec. 31, 2013
Total Stockholder Return Based Awards [Member]
Jan. 31, 2014
Scenario, Forecast [Member]
Ratified Restricted Stock Awards [Member]
Dec. 31, 2014
Scenario, Forecast [Member]
Total Stockholder Return Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Stock compensation vesting period               1 year 7 years 5 years 7 years 4 years    
Unvested performance shares 63,933                          
Unvested restricted stock outstanding 153,560 [1] 134,328 187,447 239,759 409,294 134,328 187,447              
Restricted stock awards unvested shares outstanding, performance contingent         319,667                  
Awards issued 168,841 [1],[2] 70,758 [3] 81,736 [4]                 1,032 319,667 5,160
Value of common stock received upon vesting of awards                       $ 1,000    
Total unrecognized compensation cost $ 1.2                          
Total unrecognized compensation cost, period of recognition 1 year 9 months 18 days                          
[1] Includes 63,933 Performance Shares which were granted in 2013 for which the performance goals were not met.
[2] Included in the 168,841 Restricted Stock Awards granted in 2013 were 106,933 awards granted to the Company’s four executive officers, Mitchell E. Hersh, Barry Lefkowitz, Roger W. Thomas and Anthony Krug.
[3] Included in the 70,758 Restricted Stock Awards granted in 2012 were 42,273 awards granted to the Company’s three executive officers, Mitchell E. Hersh, Barry Lefkowitz and Roger W. Thomas.
[4] Included in the 81,736 Restricted Stock Awards granted in 2011 were 51,970 awards granted to the Company’s four executive officers, Mitchell E. Hersh, Barry Lefkowitz, Roger W. Thomas and Michael Grossman.