Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Earnings Per Share Tables - Diluted Computation Of EPS) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended |
Mar. 31, 2019 |
Mar. 31, 2018 |
| Stockolders Equity [Line Items] |
|
|
| Net income available to common shareholders for basic earnings per share |
$ 241,343
|
$ 40,282
|
| Add (deduct): Noncontrolling interests in Operating Partnership |
27,680
|
4,883
|
| Add (deduct): Redemption value adjustment of redeemable noncontrolling interests in Operating Partnership unitholders |
(357)
|
(313)
|
| Net income available for diluted earnings per share |
$ 268,666
|
$ 44,852
|
| Weighted average common shares |
100,943
|
100,604
|
| Net income (loss) available to common shareholders |
$ 2.66
|
$ 0.45
|
| Mack-Cali Realty LP [Member] |
|
|
| Stockolders Equity [Line Items] |
|
|
| Net income available to common shareholders for basic earnings per share |
$ 268,666
|
$ 44,852
|
| Net income available for diluted earnings per share |
$ 268,666
|
$ 44,852
|
| Weighted average common unit |
100,943
|
100,604
|
| Net income (loss) available to common shareholders |
$ 2.66
|
$ 0.45
|