Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Schedule Of Reconciliation Of Shares Used In Basic EPS Calculation To Shares Used In Diluted EPS Calculation) (Details) - shares shares in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
|
| Stockolders Equity [Line Items] | ||
| Basic EPS shares | 90,263 | 89,955 |
| Add: Operating Partnership - common and vested LTIP units | 10,242 | 10,384 |
| Restricted Stock Awards | 35 | 1 |
| Stock Options | 64 | 297 |
| Diluted EPS Shares | 100,604 | 100,637 |
| Mack-Cali Realty LP [Member] | ||
| Stockolders Equity [Line Items] | ||
| Basic weighted average units outstanding | 100,505 | 100,339 |
| Restricted Stock Awards | 35 | 1 |
| Stock Options | 64 | 297 |
| Diluted EPU Units | 100,604 | 100,637 |