Quarterly report pursuant to Section 13 or 15(d)

Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Earnings Per Share Tables - Basic Computation Of EPS) (Details)

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Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Earnings Per Share Tables - Basic Computation Of EPS) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Net income $ 22,729 $ 68,769
Add: Noncontrolling interest in consolidated joint ventures 237 706
Add (deduct): Noncontrolling interest in Operating Partnership (2,295) (7,284)
Deduct: Redeemable noncontrolling interest (792)  
Deduct: Redemption value adjustment of redeemable noncontrolling interests (9,860)  
Net income available to common shareholders 19,879 62,191
Net income available to common shareholders for basic earnings per share $ 10,019 $ 62,191
Weighted average common shares 89,955 89,721
Net income available to common shareholders $ 0.11 $ 0.69
Mack-Cali Realty LP [Member]    
Net income $ 22,729 $ 68,769
Add: Noncontrolling interest in consolidated joint ventures 237 706
Deduct: Redeemable noncontrolling interest (792)  
Deduct: Redemption value adjustment of redeemable noncontrolling interests (10,998)  
Net income available to common shareholders 22,174 69,475
Net income available to common shareholders for basic earnings per share $ 11,176 $ 69,475
Weighted average common units 100,339 100,230
Net income available to common shareholders $ 0.11 $ 0.69