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Discontinued Operations (Narrative) (Details) (Ridgefield Park [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||
|---|---|---|---|---|
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Jun. 01, 2010
sqft
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Ridgefield Park [Member]
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| Aggregate square feet of the property | 150,050 | |||
| Gain recorded on disposal of office property | $ 4.4 | |||
| Mortgage loans, carrying amount | 19.5 | |||
| Mortgage loan maturity date | June 6, 2010 | |||
| Impairment charge on property | $ 16.6 | |||