Segment Reporting (Schedule Of Reconciliation Of Net Operating Income To Net Income Available To Common Shareholders) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
Mar. 31, 2019 |
Mar. 31, 2018 |
| Segment Reporting Information [Line Items] |
|
|
| Net operating income |
$ 39,527
|
$ 44,088
|
| Depreciation and amortization |
(48,046)
|
(41,297)
|
| Gain on change of control of interests |
13,790
|
|
| Realized gains (losses) and unrealized losses on disposition of rental property, net |
268,109
|
58,186
|
| Gain on sale of investment in unconsolidated joint venture |
903
|
|
| Gain (loss) from extinguishment of debt, net |
1,311
|
(10,289)
|
| Net income |
275,594
|
50,688
|
| Noncontrolling interests in consolidated joint ventures |
1,248
|
30
|
| Noncontrolling interests in Operating Partnership |
(27,680)
|
(4,883)
|
| Redeemable noncontrolling interests |
(4,667)
|
(2,799)
|
| Net income available to common shareholders |
244,495
|
43,036
|
| Mack-Cali Realty LP [Member] |
|
|
| Segment Reporting Information [Line Items] |
|
|
| Net operating income |
39,527
|
44,088
|
| Depreciation and amortization |
(48,046)
|
(41,297)
|
| Gain on change of control of interests |
13,790
|
|
| Realized gains (losses) and unrealized losses on disposition of rental property, net |
268,109
|
58,186
|
| Gain on sale of investment in unconsolidated joint venture |
903
|
|
| Gain (loss) from extinguishment of debt, net |
1,311
|
(10,289)
|
| Net income |
275,594
|
50,688
|
| Noncontrolling interests in consolidated joint ventures |
1,248
|
30
|
| Redeemable noncontrolling interests |
(4,667)
|
(2,799)
|
| Net income available to common shareholders |
$ 272,175
|
$ 47,919
|