Annual report pursuant to Section 13 and 15(d)

Segment Reporting (Schedule Of Reconciliation Of Net Operating Income To Net Income Available To Common Shareholders) (Details)

v3.8.0.1
Segment Reporting (Schedule Of Reconciliation Of Net Operating Income To Net Income Available To Common Shareholders) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Segment Reporting Information [Line Items]                      
Net operating income [1]                 $ 213,813 $ 216,835 $ 166,560
Depreciation and amortization                 (205,169) (186,684) (170,402)
Gain on change of control of interests                   15,347  
Realized gains (losses) and unrealized losses on disposition of rental property, net                 2,364 109,666 53,261
Gain on sale of investment in unconsolidated joint venture                 23,131 5,670 6,448
Loss from extinguishment of debt, net                 (421) (30,540)  
Impairments                     (197,919)
Net income (loss) $ 5,411 $ 44,703 $ (39,125) $ 22,729 $ 16,764 $ (9,605) $ 54,366 $ 68,769 33,718 130,294 (142,052)
Noncontrolling interest in consolidated joint ventures                 1,018 651 1,044
Noncontrolling interest in Operating Partnership                 (2,711) (13,721) 15,256
Redeemable noncontrolling interest                 (8,840)    
Net income (loss) available to common shareholders 2,582 38,054 (37,330) 19,879 15,181 (8,541) 48,393 62,191 23,185 117,224 (125,752)
Mack-Cali Realty LP [Member]                      
Segment Reporting Information [Line Items]                      
Net operating income                 213,813 216,835 166,560
Depreciation and amortization                 (205,169) (186,684) (170,402)
Gain on change of control of interests                   15,347  
Realized gains (losses) and unrealized losses on disposition of rental property, net                 2,364 109,666 53,261
Gain on sale of investment in unconsolidated joint venture                 23,131 5,670 6,448
Loss from extinguishment of debt, net                 (421) (30,540)  
Impairments                     (197,919)
Net income (loss) 5,411 44,703 (39,125) 22,729 16,764 (9,605) 54,366 68,769 33,718 130,294 (142,052)
Noncontrolling interest in consolidated joint ventures                 1,018 651 1,044
Redeemable noncontrolling interest                 (8,840)    
Net income (loss) available to common shareholders $ 2,881 $ 42,467 $ (41,626) $ 22,174 $ 16,955 $ (9,540) $ 54,055 $ 69,475 $ 25,896 $ 130,945 $ (141,008)
[1] Net operating income represents total revenues less total operating and interest expenses (as defined in Note "a"), plus equity in earnings (loss) of unconsolidated joint ventures, for the period.