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Acquisition of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018	Apr. 20, 2018
Business Acquisition [Line Items]
Fair Value	$ 9,135	$ 10,887
PCI | GCFC/ABC Bank
Business Acquisition [Line Items]
Fair Value	9,403		$ 11,360
Contractually required principal and interest payments	15,083		19,447
Best estimate of contractual cash flows not expected to be collected	4,893		6,537
Best estimate of contractual cash flows expected to be collected	10,190		12,910
Non-PCI | GCFC/ABC Bank
Business Acquisition [Line Items]
Fair Value	134,536		216,234
Contractually required principal and interest payments	135,822		220,308
Best estimate of contractual cash flows not expected to be collected	614		2,511
Best estimate of contractual cash flows expected to be collected	$ 135,208		$ 217,797

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Amount of cash flows not expected to be collected at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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Fair value at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

+ References

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Amount of cash flows expected to be collected at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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Amount of contractually required payments receivable at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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