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Investments In Unconsolidated Joint Ventures (Gale Jefferson, L.L.C.) (Details) (USD $)
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12 Months Ended | 0 Months Ended | 12 Months Ended | ||||||
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Dec. 31, 2011
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Dec. 31, 2011
Gale Jefferson [Member]
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Dec. 31, 2010
Gale Jefferson [Member]
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Dec. 31, 2009
Gale Jefferson [Member]
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Oct. 24, 2011
Gale Jefferson [Member]
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Aug. 22, 2007
Gale Jefferson [Member]
sqft
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Oct. 24, 2011
One Jefferson [Member]
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Dec. 31, 2011
One Jefferson [Member]
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Aug. 22, 2007
One Jefferson [Member]
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| Schedule of Equity Method Investments [Line Items] | |||||||||
| Percentage of interest in venture | 8.33% | ||||||||
| Mortgage loans, carrying amount | $ 21,000,000 | ||||||||
| New mortgage loan | 20,200,000 | ||||||||
| Mortgage loan, maturity date | October 24, 2012 | ||||||||
| Mortgage loan, extension period | 1 | ||||||||
| Area of office property | 100,010 | ||||||||
| Spread over LIBOR | 160 | 160 | |||||||
| Management leasing and other services fees | 154,000 | 532,000 | 190,000 | ||||||
| Service costs | $ 0 | $ 5,600,000 | $ 646,000 | ||||||
| Holding and distribution pattern under operating agreement | The operating agreement of M-C Jefferson provides, among other things, for the Participation Rights (see Note 16: Noncontrolling Interests in Subsidiaries – Participation Rights). The operating agreements of Gale Jefferson, L.L.C. ("Gale Jefferson"), which is owned 33.33 percent by M-C Jefferson and 66.67 percent by the Hampshire Generational Fund, L.L.C. ("Hampshire") provides, among other things, for the distribution of net cash flow, first, in accordance with its member's respective interests until each member is provided, as a result of such distributions, with an annual 12 percent compound return on the Member's Capital Contributions, as defined in the operating agreement and secondly, 50 percent to each of the Company and Hampshire.
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| Percentage of annual compound return to the Member's Capital Contributions | 12.00% | ||||||||
| Percentage amount distributed to the Company and Hampshire | 50.00% | ||||||||