Annual report pursuant to Section 13 and 15(d)

Condensed Quarterly Financial Information (Summary Of Condensed Quarterly Financial Information) (Details)

v3.20.4
Condensed Quarterly Financial Information (Summary Of Condensed Quarterly Financial Information) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Total revenues $ 76,564,000 $ 79,197,000 $ 74,197,000 $ 83,604,000 $ 88,227,000 $ 89,038,000 $ 88,138,000 $ 91,799,000 $ 313,562,000 $ 357,202,000 $ 371,724,000
Net income (loss) 78,298,000 (41,118,000) (32,934,000) (37,844,000) (55,408,000) (56,021,000) (20,329,000) 275,594,000 (33,598,000) 143,836,000 106,401,000
Net income (loss) available to common shareholders $ 65,632,000 $ (42,208,000) $ (34,887,000) $ (39,924,000) $ (54,652,000) $ (55,928,000) $ (22,054,000) $ 244,495,000 $ (51,387,000) $ 111,861,000 $ 84,111,000
Basic earnings per common share:                      
Income from continuing operations $ 0.22 $ (0.83) $ (0.50) $ (0.40) $ 0.51 $ (0.63) $ (0.44) $ 2.59 $ (1.51) $ 2.04 $ 0.57
Discontinued operations 0.45 0.34 0.09 (0.07) (1.15) (0.02) 0.01 0.08 0.81 (1.09) 0.23
Net income (loss) available to common shareholders 0.67 (0.49) (0.41) (0.47) (0.64) (0.65) (0.43) 2.67 (0.70) 0.95 0.80
Diluted earnings per common share:                      
Income from continuing operations 0.22 (0.83) (0.50) (0.40) 0.51 (0.63) (0.44) 2.58 (1.51) 2.04 0.57
Discontinued operations 0.45 0.34 0.09 (0.07) (1.15) (0.02) 0.01 0.08 0.81 (1.09) 0.23
Net income (loss) available to common shareholders $ 0.67 $ (0.49) $ (0.41) $ (0.47) $ (0.64) $ (0.65) $ (0.43) $ 2.66 $ (0.70) $ 0.95 $ 0.80
Mack-Cali Realty LP [Member]                      
Total revenues $ 76,564,000 $ 79,197,000 $ 74,197,000 $ 83,604,000 $ 88,227,000 $ 89,038,000 $ 88,138,000 $ 91,799,000 $ 313,562,000 $ 357,202,000 $ 371,724,000
Net income (loss) 78,298,000 (41,118,000) (32,934,000) (37,844,000) (55,408,000) (56,021,000) (20,329,000) 275,594,000 (33,598,000) 143,836,000 106,401,000
Net income (loss) available to common shareholders $ 72,623,000 $ (46,694,000) $ (38,576,000) $ (44,139,000) $ (60,475,000) $ (62,087,000) $ (24,488,000) $ 272,175,000 $ (56,786,000) $ 125,125,000 $ 93,638,000
Basic earnings per common share:                      
Income from continuing operations $ 0.22 $ (0.83) $ (0.50) $ (0.40) $ 0.51 $ (0.63) $ (0.44) $ 2.59 $ (1.51) $ 2.04 $ 0.57
Discontinued operations 0.45 0.34 0.09 (0.07) (1.15) (0.02) 0.01 0.08 0.81 (1.09) 0.23
Net income (loss) available to common shareholders 0.67 (0.49) (0.41) (0.47) (0.64) (0.65) (0.43) 2.67 (0.70) 0.95 0.80
Diluted earnings per common share:                      
Income from continuing operations 0.22 (0.83) (0.50) (0.40) 0.51 (0.63) (0.44) 2.58 (1.51) 2.04 0.57
Discontinued operations 0.45 0.34 0.09 (0.07) (1.15) (0.02) 0.01 0.08 0.81 (1.09) 0.23
Net income (loss) available to common shareholders $ 0.67 $ (0.49) $ (0.41) $ (0.47) $ (0.64) $ (0.65) $ (0.43) $ 2.66 $ (0.70) $ 0.95 $ 0.80