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Note 6: Premises and Equipment: Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Details    
Land $ 42,312 $ 42,322
Inventory, Buildings and Improvements 97,464 96,429
Furniture and Fixtures, Gross 53,841 57,217
Property, Plant and Equipment, Gross 193,617 195,968
Property, Plant, and Equipment, Owned, Accumulated Depreciation 55,599 55,372
Premises and equipment, net $ 138,018 $ 140,596