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Property And Equipment (Tables)
12 Months Ended
Dec. 31, 2012
Property And Equipment [Abstract]  
Classifications Of Property And Equipment
 As of December 31,
 2012 2011
    Accumulated       Accumulated   
 Cost Depreciation Net Cost Depreciation Net
Land$5,335 $ - $5,335 $5,335 $ - $5,335
Buildings and leasehold improvements 230,665  (124,690)  105,975  210,337  (111,946)  98,391
Furniture, fixtures and equipment 155,118  (100,139)  54,979  135,487  (88,422)  47,065
Computer software 168,728  (73,246)  95,482  151,142  (55,504)  95,638
Total$559,846 $(298,075) $261,771 $502,301 $(255,872) $246,429