Loans (Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Movement Schedule Rollforward) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Balance, beginning of period	$ 15,623	$ 6,871
Addition	0	0
Accretion	(2,137)	(851)
Adjustment for payoffs	(612)	(273)
Adjustment for charge-offs	(551)	0
Adjustment for pool excess recovery	0	(222)
Increase in accretable yield	3,178	(295)
Other	(178)	(32)
Balance, end of period	$ 15,323	$ 5,198