FHLB Advances and Other Borrowings - Schedule of Due or Callable Notes (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Sep. 30, 2016
Debt Instrument [Line Items]
Total	$ 108,178	$ 111,873
FHLB Advances and Related Party Notes Payable
Debt Instrument [Line Items]
Remaining in 2017	100,000
2018	31,000
2019	0
2020	0
2021	70,000
2022 and thereafter	510,000
Total	$ 711,000