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Note 14 - Fair Value Measurements (Detail) - Assets and Liabilities Measured at Fair Value on a Recurring Basis (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Marketable equity Securities $ 32,725 $ 30,462
Interest rate swaps   222
Real estate 16,141 5,289
Other real estate investments (1)   9,041 [1]
Fair Value, Inputs, Level 1 [Member]
   
Marketable equity Securities 32,725 30,462
Fair Value, Inputs, Level 2 [Member]
   
Interest rate swaps   222
Other real estate investments (1)   9,041 [1]
Fair Value, Inputs, Level 3 [Member]
   
Real estate $ 16,141 $ 5,289
[1] Amount represents an investment in a mutual fund for which fair value was determined based on net asset value.