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 - Diluted Computation Of EPS) (Details)

v3.10.0.1
Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Earnings Per Share Tables - Diluted Computation Of EPS) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Stockolders Equity [Line Items]        
Net income (loss) available to common shareholders for basic earnings per share $ (4,630) $ (39,881) $ 35,652 $ (29,862)
Add (deduct): Noncontrolling interest in Operating Partnership (142) (4,296) 4,741 (2,001)
Add (deduct): Redeemable noncontrolling interest (2,989) (2,682) (5,788) (3,474)
Add (deduct): Redemption value adjustment of redeemable noncontrolling interests in Operating Partnership unitholders (384) (294) (697) (1,432)
Net income available for diluted earnings per share $ (5,156) $ (44,471) $ 39,696 $ (33,295)
Weighted average common shares 100,598 100,370 100,607 100,354
Net income (loss) available to common shareholders $ (0.05) $ (0.44) $ 0.39 $ (0.33)
Mack-Cali Realty LP [Member]        
Stockolders Equity [Line Items]        
Net income (loss) available to common shareholders for basic earnings per share $ (5,156) $ (44,471) $ 39,696 $ (33,295)
Add (deduct): Redeemable noncontrolling interest (2,989) (2,682) (5,788) (3,474)
Net income available for diluted earnings per share $ (5,156) $ (44,471) $ 39,696 $ (33,295)
Weighted average common unit 100,598 100,370 100,607 100,354
Net income (loss) available to common shareholders $ (0.05) $ (0.44) $ 0.39 $ (0.33)