Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Earnings Per Share Tables - Basic Computation Of EPS) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Net income (loss) | $ (9,605) | $ (142,141) | $ 113,530 | $ (106,077) |
| Add: Noncontrolling interest in consolidated joint ventures | 65 | (281) | 460 | 582 |
| Add (deduct): Noncontrolling interest in Operating Partnership | 999 | 15,530 | (11,947) | 11,461 |
| Net income (loss) available to common shareholders | $ (8,541) | $ (126,892) | $ 102,043 | $ (94,034) |
| Weighted average common shares | 89,755 | 89,249 | 89,739 | 89,229 |
| Net income (loss) available to common shareholders | $ (0.10) | $ (1.42) | $ 1.14 | $ (1.05) |
| Mack Cali Realty LP [Member] | ||||
| Net income (loss) | $ (9,605) | $ (142,141) | $ 113,530 | $ (106,077) |
| Add: Noncontrolling interest in consolidated joint ventures | 65 | (281) | 460 | 582 |
| Net income (loss) available to common shareholders | $ (9,540) | $ (142,422) | $ 113,990 | $ (105,495) |
| Weighted average common units | 100,253 | 100,172 | 100,241 | 100,236 |
| Net income (loss) available to common shareholders | $ (0.10) | $ (1.42) | $ 1.14 | $ (1.05) |