Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Segment Reporting (Schedule Of Reconciliation Of Net Operating Income To Net Income Available To Common Shareholders) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Segment Reporting Information [Line Items]        
Net operating income $ 42,387 $ 55,174 $ 128,379 $ 165,295
Depreciation and amortization (45,813) (52,375) (128,523) (157,768)
Gain on change of control of interests 14,217   14,217  
Realized gains (losses) and unrealized losses on disposition of rental property, net (9,102) 31,336 50,094 (2,112)
Gain on sale of investment in unconsolidated joint venture   10,568   23,131
Loss from extinguishment of debt, net     (10,289) (239)
Net income 1,689 44,703 53,878 28,307
Noncontrolling interest in consolidated joint ventures 451 447 576 865
Noncontrolling interest in Operating Partnership 167 (4,413) (4,574) (2,412)
Redeemable noncontrolling interest (3,785) (2,683) (9,573) (6,157)
Net income (loss) available to common shareholders (1,478) 38,054 40,307 20,603
Mack-Cali Realty LP [Member]        
Segment Reporting Information [Line Items]        
Net operating income 42,387 55,174 128,379 165,295
Depreciation and amortization (45,813) (52,375) (128,523) (157,768)
Gain on change of control of interests 14,217   14,217  
Realized gains (losses) and unrealized losses on disposition of rental property, net (9,102) 31,336 50,094 (2,112)
Gain on sale of investment in unconsolidated joint venture   10,568   23,131
Loss from extinguishment of debt, net     (10,289) (239)
Net income 1,689 44,703 53,878 28,307
Noncontrolling interest in consolidated joint ventures 451 447 576 865
Redeemable noncontrolling interest (3,785) (2,683) (9,573) (6,157)
Net income (loss) available to common shareholders $ (1,645) $ 42,467 $ 44,881 $ 23,015