Purchased Loans - Changes in Restructured Loans (Details) - Purchased loans $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($) loan
Number of Loans
Totals at January 1, 2019 (loans) | loan	54
Additional advances or loans with concessions (loans) | loan	0
Reclassified as performing restructured loan (loan) | loan	5
Reclassified to nonperforming loans (loans) | loan	(2)
Paid in full (loans) | loan	(2)
Principal paydowns (loans) | loan	0
Totals at March 31, 2019 (loans) | loan	55
Recorded Investment
Totals at January 1, 2019 | $	$ 7,495
Additional advances or loans with concessions | $	174
Reclassified as performing restructured loan | $	212
Reclassified to nonperforming loans | $	(269)
Paid in full | $	(104)
Principal paydowns | $	(261)
Totals at March 31, 2019 | $	$ 7,247