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 | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
|
| Stockolders Equity [Line Items] | ||||
| Basic EPS shares | 90,671 | 90,584 | 90,639 | 90,539 |
| Add: Operating Partnership - common and vested LTIP units | 9,636 | 9,976 | 9,596 | 10,068 |
| Restricted Stock Awards | 24 | |||
| Stock Options | 171 | |||
| Diluted EPS Shares | 100,307 | 100,560 | 100,235 | 100,802 |
| Mack-Cali Realty LP [Member] | ||||
| Stockolders Equity [Line Items] | ||||
| Basic EPU units | 100,307 | 100,560 | 100,235 | 100,607 |
| Restricted Stock Awards | 24 | |||
| Stock Options | 171 | |||
| Diluted EPU Units | 100,307 | 100,560 | 100,235 | 100,802 |