Note 15: Derivatives and Hedging Activities: Schedule of Derivative Instruments in Statement of Financial Position, Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Derivatives designated as hedging instruments
Derivative Instruments Designated as Hedging Instruments Asset at Fair Value	$ 0	$ 40
Derivative Asset
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	1,360	1,623
Derivative Liability
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	1,441	1,699
Interest Rate Cap | Prepaid Expenses and Other Current Assets
Derivatives designated as hedging instruments
Derivative Instruments Designated as Hedging Instruments Asset at Fair Value	0	40
Interest rate products | Prepaid Expenses and Other Current Assets
Derivative Asset
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	1,360	1,623
Interest rate products | Accrued expenses and other liabilities
Derivative Liability
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	$ 1,441	$ 1,699