Loans - Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Movement Schedule Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of period	$ 11,600	$ 14,474	$ 13,375	$ 15,623
Accretion	(1,440)	(2,183)	(4,586)	(6,927)
Adjustment for payoffs	(369)	(840)	(1,084)	(2,559)
Adjustment for charge-offs	(59)	(122)	(314)	(1,046)
Adjustment for pool excess recovery	0	(123)	0	(123)
Increase/(decrease) in accretable yield	2,416	4,062	5,080	10,721
Disposal	(4)	0	(4)	(240)
Other	(35)	0	(358)	(181)
Balance, end of period	$ 12,109	$ 15,268	$ 12,109	$ 15,268