Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Schedule Of General Partner Capital) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
| Investment Company, Financial Highlights [Line Items] |
|
|
|
|
| Balance |
|
|
$ 1,398,817
|
|
| Redeemable noncontrolling interests |
$ (6,471)
|
$ (6,471)
|
(19,413)
|
$ (19,413)
|
| Redemption of common units |
(295)
|
(29)
|
(11,164)
|
(2,170)
|
| Directors' deferred compensation plan |
91
|
76
|
229
|
215
|
| Cancellation of common stock, value |
|
|
(118)
|
|
| Other comprehensive income (loss) |
|
|
|
(16)
|
| Balance |
1,308,025
|
|
1,308,025
|
|
| General Partner Common Unitholders [Member] |
|
|
|
|
| Investment Company, Financial Highlights [Line Items] |
|
|
|
|
| Balance |
1,335,226
|
1,399,033
|
1,398,817
|
1,493,699
|
| Net income (loss) available to common shareholders |
(28,314)
|
(42,208)
|
(92,770)
|
(117,019)
|
| Redeemable noncontrolling interests |
(1,562)
|
(2,167)
|
(4,903)
|
(7,207)
|
| Redemption of common units for common stock |
|
|
2,716
|
|
| Shares issued under Dividend Reinvestment and Stock Purchase Plan |
4
|
9
|
33
|
39
|
| Directors' deferred compensation plan |
91
|
76
|
229
|
215
|
| Stock compensation |
1,632
|
394
|
3,517
|
1,158
|
| Cancellation of common stock, value |
|
|
(118)
|
|
| Other comprehensive income (loss) |
|
|
|
18
|
| Rebalancing of ownership percent between parent and subsidiaries |
948
|
(875)
|
504
|
1,478
|
| Balance |
$ 1,308,025
|
$ 1,336,120
|
$ 1,308,025
|
$ 1,336,120
|