Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Earnings Per Share Tables - Basic Computation Of EPS) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
| Stockolders Equity [Line Items] |
|
|
|
|
| Net income (loss) |
$ (20,329)
|
$ 1,501
|
$ 255,265
|
$ 52,189
|
| Add (deduct): Noncontrolling interests in consolidated joint ventures |
847
|
95
|
2,095
|
125
|
| Add (deduct): Noncontrolling interests in Operating Partnership |
2,434
|
142
|
(25,246)
|
(4,741)
|
| Add (deduct): Redeemable noncontrolling interests |
(5,006)
|
(2,989)
|
(9,673)
|
(5,788)
|
| Add (deduct): Redemption value adjustment of redeemable noncontrolling interests attributable to common shareholders |
(16,759)
|
(3,379)
|
(19,911)
|
(6,133)
|
| Net income (loss) available to common shareholders for basic earnings per share |
$ (38,813)
|
$ (4,630)
|
$ 202,530
|
$ 35,652
|
| Weighted average common shares |
90,533
|
90,330
|
90,516
|
90,297
|
| Net income (loss) available to common shareholders |
$ (0.43)
|
$ (0.05)
|
$ 2.24
|
$ 0.39
|
| Mack-Cali Realty LP [Member] |
|
|
|
|
| Stockolders Equity [Line Items] |
|
|
|
|
| Net income (loss) |
$ (20,329)
|
$ 1,501
|
$ 255,265
|
$ 52,189
|
| Add (deduct): Noncontrolling interests in consolidated joint ventures |
847
|
95
|
2,095
|
125
|
| Add (deduct): Redeemable noncontrolling interests |
(5,006)
|
(2,989)
|
(9,673)
|
(5,788)
|
| Add (deduct): Redemption value adjustment of redeemable noncontrolling interests attributable to common shareholders |
(18,609)
|
(3,763)
|
(22,118)
|
(6,830)
|
| Net income (loss) available to common shareholders for basic earnings per share |
$ (43,097)
|
$ (5,156)
|
$ 225,569
|
$ 39,696
|
| Weighted average common units |
100,523
|
100,598
|
100,631
|
100,552
|
| Net income (loss) available to common shareholders |
$ (0.43)
|
$ (0.05)
|
$ 2.24
|
$ 0.39
|