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Note 16: Derivatives and Hedging Activities: Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income | Interest Rate Swap        
Effect of derivative instruments on the statements of comprehensive income $ 4,461 $ 0 $ 18,789 $ 0