Annual report pursuant to Section 13 and 15(d)

Combined Real Estate And Accumulated Depreciation (Cost And Accumulated Depreciation) (Details)

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Combined Real Estate And Accumulated Depreciation (Cost And Accumulated Depreciation) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Combined Real Estate And Accumulated Depreciation [Abstract]      
Balance at beginning of period $ 1,419,956 $ 1,364,454 $ 1,343,669
Acquisitions through foreclosure         
Other acquisitions 151,572 34,155  
Improvements, etc. 28,135 21,523 21,952
Additions during period other acquisitions, improvements, total 179,707 55,678 21,952
Cost of assets disposed (1,011) (176) (218)
Impairment write-down (1,721)    
Casualty loss (828)   (949)
Deductions during period (3,560) (176) (1,167)
Balance at close of period 1,596,103 1,419,956 1,364,454
Balance at beginning of period 271,797 238,971 206,739
Depreciation expense 35,008 32,939 32,451
Additions during period depreciation expense, total 35,008 32,939 32,451
Accumulated depreciation of assets disposed (432) (113) (128)
Accumulated depreciation on impaired asset (674)    
Accumulated depreciation on casualty loss (114)   (91)
Deductions during period (1,220) (113) (219)
Balance at close of period $ 305,585 $ 271,797 $ 238,971