Note 17: Derivatives and Hedging Activities: Schedule of Derivative Instruments in Statement of Financial Position, Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Derivatives Designated as Hedging Instruments, Total	$ 12,106	$ 0
Derivatives Not Designated as Hedging Instruments Assets, Total	694	981
Derivatives Not Designated as Hedging Instruments Liabilities, Total	716	1,030
Prepaid Expenses and Other Current Assets | Interest Rate Swap
Derivatives Designated as Hedging Instruments	12,106	0
Interest rate products	694	981
Interest rate products	$ 716	$ 1,030