Loans Accretable Yield Rollforward (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference	$ 1,285
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning balance	7,132
Accretion	(1,279)
Ending balance	$ 7,138