Purchased Loans - Changes in Restructured Loans (Details) - Purchased loans $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) loan
Number of Loans
Total, beginning balance (loans) | loan	54
Additional advances or loans with concessions (loans) | loan	1
Reclassified to nonperforming loans (loans) | loan	(12)
Paid in full (loans) | loan	(1)
Charge-offs (loans) | loan	(1)
Principal paydowns (loans) | loan	0
Total, ending balance (loans) | loan	41
Recorded Investment
Total, beginning balance | $	$ 7,275
Additional advances or loans with concessions | $	209
Reclassified to nonperforming loans | $	(2,449)
Paid in full | $	(34)
Charge-offs | $	(3)
Principal paydowns | $	(19)
Total, ending balance | $	$ 4,979