Segment Reporting (Schedule Of Reconciliation Of Net Operating Income To Net Income Available To Common Shareholders) (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
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| Segment Reporting Information [Line Items] | ||||
| Net operating income | $ 40,637,000 | $ 42,387,000 | $ 116,375,000 | $ 128,379,000 |
| Depreciation and amortization | (49,538,000) | (45,813,000) | (146,936,000) | (128,523,000) |
| Property impairments | (5,894,000) | (11,696,000) | ||
| Land impairment | (6,345,000) | (8,844,000) | ||
| Gain on change of control of interests | 14,217,000 | 13,790,000 | 14,217,000 | |
| Realized gains (losses) and unrealized losses on disposition of rental property, net | (35,079,000) | (9,102,000) | 233,285,000 | 50,094,000 |
| Gain (loss) on disposition of developable land | 296,000 | 566,000 | ||
| Gain on sale of investment in unconsolidated joint venture | 903,000 | |||
| Gain (loss) from extinguishment of debt, net | (98,000) | 0 | 1,801,000 | (10,289,000) |
| Net income (loss) | (56,021,000) | 1,689,000 | 199,244,000 | 53,878,000 |
| Noncontrolling interests in consolidated joint ventures | 405,000 | 451,000 | 2,500,000 | 576,000 |
| Noncontrolling interests in Operating Partnership | 6,159,000 | 167,000 | (19,087,000) | (4,574,000) |
| Redeemable noncontrolling interests | (6,471,000) | (3,785,000) | (16,144,000) | (9,573,000) |
| Net income (loss) available to common shareholders | (55,928,000) | (1,478,000) | 166,513,000 | 40,307,000 |
| Mack-Cali Realty LP [Member] | ||||
| Segment Reporting Information [Line Items] | ||||
| Net operating income | 40,637,000 | 42,387,000 | 116,375,000 | 128,379,000 |
| Depreciation and amortization | (49,538,000) | (45,813,000) | (146,936,000) | (128,523,000) |
| Property impairments | (5,894,000) | (11,696,000) | ||
| Land impairment | (6,345,000) | (8,844,000) | ||
| Gain on change of control of interests | 14,217,000 | 13,790,000 | 14,217,000 | |
| Realized gains (losses) and unrealized losses on disposition of rental property, net | (35,079,000) | (9,102,000) | 233,285,000 | 50,094,000 |
| Gain (loss) on disposition of developable land | 296,000 | 566,000 | ||
| Gain on sale of investment in unconsolidated joint venture | 903,000 | |||
| Gain (loss) from extinguishment of debt, net | (98,000) | 1,801,000 | (10,289,000) | |
| Net income (loss) | (56,021,000) | 1,689,000 | 199,244,000 | 53,878,000 |
| Noncontrolling interests in consolidated joint ventures | 405,000 | 451,000 | 2,500,000 | 576,000 |
| Redeemable noncontrolling interests | (6,471,000) | (3,785,000) | (16,144,000) | (9,573,000) |
| Net income (loss) available to common shareholders | $ (62,087,000) | $ (1,645,000) | $ 185,600,000 | $ 44,881,000 |
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- Definition Gain (Loss) On Change Of Control Of Interests No definition available.
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- Definition Gain (Loss) On Sale Of Realized And Unrealized Property Plant Equipment No definition available.
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- Definition Impairment Of Land And Other No definition available.
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- Definition Noncontrolling Interest, Redemption Value Adjustment, Redeemable No definition available.
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- Definition Segment Reporting Information, Net Operating Income (Loss) For Reportable Segment No definition available.
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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The difference between the reacquisition price and the net carrying amount of the extinguished debt recognized currently as a component of income in the period of extinguishment, net of tax. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax of income (loss) attributable to nonredeemable noncontrolling shareholder, unit holder, partner, or other equity holder of a joint venture. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- 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
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Details
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