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Note 17: Derivatives and Hedging Activities: Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Interest Rate Swap |  |  |
Cash Flow Hedges Gain (Loss) Recognized in Accumulated Other Comprehensive Income, Net | $ 9,345 |  |
Interest Rate Cap |  |  |
Cash Flow Hedges Gain (Loss) Recognized in Accumulated Other Comprehensive Income, Net |  | $ 161 | $ 87

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- Definition Represents the monetary amount of Cash Flow Hedges Gain (Loss) Recognized in Accumulated Other Comprehensive Income, Net, during the indicated time period. + References No definition available. + Details
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Namespace Prefix: | fil_
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateCapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |