Purchased Loans - Changes in Restructured Loans (Details) - Purchased loans $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($) loan
Number of Loans
Totals at January 1, 2019 (loans) | loan	54
Additional advances or loans with concessions (loans) | loan	4
Reclassified as performing restructured loan (loan) | loan	13
Reclassified to nonperforming loans (loans) | loan	(9)
Paid in full (loans) | loan	(7)
Measurement period adjustment on recently acquired loans (loans) | loan	0
Principal paydowns (loans) | loan	0
Totals at September 30, 2019 (loans) | loan	55
Recorded Investment
Totals at January 1, 2019 | $	$ 7,495
Additional advances or loans with concessions | $	3,128
Reclassified as performing restructured loan | $	1,788
Reclassified to nonperforming loans | $	(746)
Paid in full | $	(370)
Measurement period adjustment on recently acquired loans | $	(2,376)
Principal paydowns | $	(375)
Totals at September 30, 2019 | $	$ 8,544