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 |
9 Months Ended |
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
| Stockolders Equity [Line Items] |
|
|
|
|
| Net income |
$ 1,689
|
$ 44,703
|
$ 53,878
|
$ 28,307
|
| Add (deduct): Noncontrolling interest in consolidated joint ventures |
451
|
447
|
576
|
865
|
| Add (deduct): Noncontrolling interest in Operating Partnership |
167
|
(4,413)
|
(4,574)
|
(2,412)
|
| Add (deduct): Redeemable noncontrolling interest |
(3,785)
|
(2,683)
|
(9,573)
|
(6,157)
|
| Add (deduct): Redemption value adjustment of redeemable noncontrolling interests attributable to common shareholders |
(2,666)
|
(2,728)
|
(8,799)
|
(15,139)
|
| Net income (loss) available to common shareholders for basic earnings per share |
$ (4,144)
|
$ 35,326
|
$ 31,508
|
$ 5,464
|
| Weighted average common shares |
90,468
|
90,023
|
90,355
|
89,997
|
| Net income (loss) available to common shareholders |
$ (0.05)
|
$ 0.39
|
$ 0.35
|
$ 0.06
|
| Mack-Cali Realty LP [Member] |
|
|
|
|
| Stockolders Equity [Line Items] |
|
|
|
|
| Net income |
$ 1,689
|
$ 44,703
|
$ 53,878
|
$ 28,307
|
| Add (deduct): Noncontrolling interest in consolidated joint ventures |
451
|
447
|
576
|
865
|
| Add (deduct): Redeemable noncontrolling interest |
(3,785)
|
(2,683)
|
(9,573)
|
(6,157)
|
| Add (deduct): Redemption value adjustment of redeemable noncontrolling interests attributable to common shareholders |
(2,968)
|
(3,044)
|
(9,798)
|
(16,887)
|
| Net income (loss) available to common shareholders for basic earnings per share |
$ (4,613)
|
$ 39,423
|
$ 35,083
|
$ 6,128
|
| Weighted average common units |
100,712
|
100,462
|
100,606
|
100,391
|
| Net income (loss) available to common shareholders |
$ (0.05)
|
$ 0.39
|
$ 0.35
|
$ 0.06
|