Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Schedule Of Restricted Stock Awards) (Details)
|
12 Months Ended |
|
Dec. 31, 2017
$ / shares
shares
|
Dec. 31, 2016
$ / shares
shares
|
Dec. 31, 2015
$ / shares
item
shares
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Shares, Outstanding, Beginning balance |
145,278
|
136,220
|
346,946
|
|
| Shares, Granted |
59,985
|
74,622
|
41,337
|
[1] |
| Shares, Vested |
(95,009)
|
(61,654)
|
(250,132)
|
|
| Shares, Forfeited |
(1,936)
|
(3,910)
|
(1,931)
|
|
| Shares, Outstanding, Ending balance |
108,318
|
145,278
|
136,220
|
|
| Weighted-Average Grant-Date Fair Value, Outstanding beginning balance | $ / shares |
$ 21.76
|
$ 19.36
|
$ 21.09
|
|
| Weighted-Average Grant-Date Fair Value, Granted | $ / shares |
27.00
|
23.79
|
17.51
|
[1] |
| Weighted-Average Grant-Date Fair Value, Vested | $ / shares |
20.73
|
18.94
|
21.44
|
|
| Weighted-Average Grant-Date Fair Value, Forfeited | $ / shares |
25.83
|
21.58
|
20.31
|
|
| Weighted-Average Grant-Date Fair Value, Outstanding ending balance | $ / shares |
$ 25.49
|
$ 21.76
|
$ 19.36
|
|
| Executive Officers [Member] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Number of executive officers that were granted restricted stock awards | item |
|
|
2
|
|
| Messr Rudin And Messr DeMarco [Member] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Shares, Granted |
|
|
37,551
|
|
|
|