Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The increase (decrease) during the reporting period in the amount of cash held either as collateral directly or provided to third parties associated with derivative instruments. Upon the occurrence of any specified triggering event or condition associated with the derivative, these amounts can be utilized to recover all or a portion of the amounts due or payable under the derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of the cost of borrowed funds accounted for as interest expense.

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No definition available.

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Derivatives (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
Derivatives (Narrative) (Details) - USD ($)	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2019	May 22, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense	$ 9,568,000	$ 5,634,000	$ 25,777,000	$ 15,649,000
Collateral posted			281,000
Reclassification out of Accumulated Other Comprehensive Income [Member] \| Accumulated Gain (Loss), Cash Flow Hedge [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense			315,000
Scenario, Forecast [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member] \| Accumulated Gain (Loss), Cash Flow Hedge [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense					$ 243,000
FHLB [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense	$ 225,000		$ 315,000
Cash Flow Hedging [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Notional amount						$ 150,000,000