Note 8: Deposits: Maturities of certificates of deposit (Details) - Certificate of Deposit Owner $ in Thousands	Dec. 31, 2017 USD ($)
Retail
Time Deposit Maturities, Next Twelve Months	$ 775,404
Time Deposit Maturities, Year Two	199,252
Time Deposit Maturities, Year Three	58,811
Time Deposit Maturities, Year Four	48,365
Time Deposit Maturities, Year Five	25,868
Time Deposit Maturities, after Year Five	2,173
Time Deposits	1,109,873
Brokered
Time Deposit Maturities, Next Twelve Months	238,410
Time Deposit Maturities, Year Two	21,561
Time Deposit Maturities, Year Three	0
Time Deposit Maturities, Year Four	0
Time Deposit Maturities, Year Five	0
Time Deposit Maturities, after Year Five	0
Time Deposits	259,971
Certificate Owners, Total
Time Deposit Maturities, Next Twelve Months	1,013,814
Time Deposit Maturities, Year Two	220,813
Time Deposit Maturities, Year Three	58,811
Time Deposit Maturities, Year Four	48,365
Time Deposit Maturities, Year Five	25,868
Time Deposit Maturities, after Year Five	2,173
Time Deposits	$ 1,369,844

Amount of time deposits maturing after the fifth fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of time deposits maturing in the fifth fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of time deposits maturing in the fourth fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of time deposits maturing in the next fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Industry Guide
-Number 3
-Section V
-Paragraph D-E

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Amount of time deposits maturing in the third fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of time deposits maturing in the second fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of time deposit liabilities, including certificates of deposit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=50488274&loc=d3e64164-112818

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Industry Guide
-Number 3
-Section V
-Paragraph D-E

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