Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Earnings Per Share Tables - Diluted Computation Of EPS) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Stockolders Equity [Line Items] | |||||||||||
| Net income available to common shareholders for basic earnings per share | $ 72,686 | $ 5,234 | $ 117,224 | ||||||||
| Add (deduct): Noncontrolling interest in Operating Partnership | 9,527 | 2,711 | 13,721 | ||||||||
| Deduct: Redeemable noncontrolling interest | (13,979) | (8,840) | |||||||||
| Deduct: Redemption value adjustment of redeemable noncontrolling interests in Operating Partnership unitholders | (1,296) | (2,074) | |||||||||
| Net income available for diluted earnings per share | $ 80,917 | $ 5,871 | $ 130,945 | ||||||||
| Weighted average common shares | 100,724 | 100,703 | 100,498 | ||||||||
| Net income available to common shareholders | $ 0.45 | $ (0.05) | $ (0.05) | $ 0.45 | $ (0.01) | $ 0.39 | $ (0.44) | $ 0.11 | $ 0.80 | $ 0.06 | $ 1.30 |
| Mack-Cali Realty LP [Member] | |||||||||||
| Stockolders Equity [Line Items] | |||||||||||
| Net income available to common shareholders for basic earnings per share | $ 80,917 | $ 5,871 | $ 130,945 | ||||||||
| Deduct: Redeemable noncontrolling interest | $ (13,979) | $ (8,840) | |||||||||
| Weighted average common unit | 100,724 | 100,703 | 100,498 | ||||||||
| Net income available to common shareholders | $ 0.45 | $ (0.05) | $ (0.05) | $ 0.45 | $ (0.01) | $ 0.39 | $ (0.44) | $ 0.11 | $ 0.80 | $ 0.06 | $ 1.30 |
| X | ||||||||||
- Definition Noncontrolling Interest, Redemption Value Adjustment, Redeemable No definition available.
|
| X | ||||||||||
- Definition Noncontrolling Interest Redemption Value Adjustment Redeemable In Operating Partnership No definition available.
|
| X | ||||||||||
- Definition Stockolders Equity [Line Items] No definition available.
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax of income (loss) attributable to nonredeemable noncontrolling partner in an operating partnership. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average number of limited partnership units outstanding determined by relating the portion of time within a reporting period that limited partnership units have been outstanding to the total time in that period. Used in the calculation of diluted net income or loss per limited partnership unit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|