Note 16: Derivatives and Hedging Activities: Schedule of Derivative Instruments, Effect on Statements of Operations (Details) - Interest Rate Swap - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest Income
Effect of cash flow hedge accounting on the statements of operations	$ 2,025	$ 568	$ 3,581	$ 1,081
Interest Expense
Effect of cash flow hedge accounting on the statements of operations	$ 0	$ 0	$ 0	$ 0