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 | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Net income (loss) | $ 130,294 | $ (142,052) | $ 31,391 | ||||||||
| Add: Noncontrolling interest in consolidated joint ventures | $ 191 | $ 65 | $ (311) | $ 706 | $ 462 | $ (281) | $ 373 | $ 490 | 651 | 1,044 | 778 |
| Add (deduct): Noncontrolling interest in Operating Partnership | (1,774) | 999 | (5,662) | (7,284) | 3,795 | 15,530 | (4,383) | 314 | (13,721) | 15,256 | (3,602) |
| Net income (loss) available to common shareholders | $ 15,181 | $ (8,541) | $ 48,393 | $ 62,191 | $ (31,718) | $ (126,892) | $ 35,379 | $ (2,521) | $ 117,224 | $ (125,752) | $ 28,567 |
| Weighted average common shares | 89,746 | 89,291 | 88,727 | ||||||||
| Net income (loss) available to common shareholders | $ 0.17 | $ (0.10) | $ 0.54 | $ 0.69 | $ (0.35) | $ (1.42) | $ 0.40 | $ (0.03) | $ 1.31 | $ (1.41) | $ 0.32 |
| Mack-Cali Realty LP [Member] | |||||||||||
| Net income (loss) | $ 130,294 | $ (142,052) | $ 31,391 | ||||||||
| Add: Noncontrolling interest in consolidated joint ventures | $ 191 | $ 65 | $ (311) | $ 706 | $ 462 | $ (281) | $ 373 | $ 490 | 651 | 1,044 | 778 |
| Net income (loss) available to common shareholders | $ 16,955 | $ (9,540) | $ 54,055 | $ 69,475 | $ (35,513) | $ (142,422) | $ 39,762 | $ (2,835) | $ 130,945 | $ (141,008) | $ 32,169 |
| Weighted average common units | 100,245 | 100,222 | 99,999 | ||||||||
| Net income (loss) available to common shareholders | $ 0.17 | $ (0.10) | $ 0.54 | $ 0.69 | $ (0.35) | $ (1.42) | $ 0.40 | $ (0.03) | $ 1.31 | $ (1.41) | $ 0.32 |