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Investments In Unconsolidated Joint Ventures (12 Vreeland Associates, L.L.C.) (Narrative) (Details)
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3 Months Ended |
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Mar. 31, 2013
sqft
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12 Vreeland Associates, L.L.C. [Member]
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| Schedule of Equity Method Investments [Line Items] | |
| Percentage of interest in venture | 50.00% |
| Area of property (in square feet) | 139,750 |
| Holding and distribution pattern under operating agreement | M-C Vreeland holds a 50 percent interest in 12 Vreeland Associates, L.L.C., with S/K Florham Park Associates, L.L.C. (the managing member) and its affiliate holding the other 50 percent. |
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S/K Florham Park Associates LLC [Member]
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| Schedule of Equity Method Investments [Line Items] | |
| Third party ownership percentage | 50.00% |