Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Operating activities:
Net income		$ 13,232	$ 15,641
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses		5,550	600
Depreciation, amortization and accretion, net		1,211	783
Deferred income tax		277	(1,028)
Gain on sales of mortgage loans held for sale		(769)	(238)
Origination of mortgage loans held for sale		(30,974)	(13,346)
Proceeds from sale of mortgage loans held for sale		32,350	12,278
Bank owned life insurance income	[1]	(179)	(178)
(Gain)/Loss on the disposal of premises and equipment		(231)	4
Gain on the sale of other real estate owned		0	(22)
Stock compensation expense		817	863
Excess tax benefits from share-based compensation arrangements		(60)	(311)
Net change in accrued interest receivable and other assets		(5,018)	(1,237)
Net change in accrued interest payable and other liabilities		(3,509)	(2,754)
Net cash provided by operating activities		12,697	11,055
Investing activities:
Purchases of securities available for sale		(85,100)	(174,490)
Proceeds from maturities and paydowns of securities available for sale		118,060	108,124
Proceeds from redemption of Federal Home Loan Bank stock		0	590
Net change in loans		(85,733)	17,800
Purchases of premises and equipment		(1,564)	(1,999)
Proceeds from sales of premises and equipment		1,222	40
Proceeds from bank owned life insurance mortality benefit		0	908
Other investment activities		(618)	(824)
Proceeds from sales of other real estate owned		0	512
Net cash used in investing activities		(53,733)	(49,339)
Financing activities:
Net change in deposits		64,920	(41,816)
Net change in securities sold under agreements to repurchase and federal funds purchased			510
Proceeds from Federal Home Loan Bank advances		30,000	30,000
Repayments of Federal Home Loan Bank advances		(40,824)	(30,324)
Share repurchases related to compensation plans		(1,485)	(1,953)
Cash dividends paid		(6,119)	(5,732)
Net cash provided by (used in) financing activities		45,823	(49,315)
Net change in cash and cash equivalents		4,787	(87,599)
Cash and cash equivalents at beginning of period		249,724	198,939
Cash and cash equivalents at end of period		254,511	111,340
Supplemental cash flow information:
Interest paid		4,657	5,425
Income taxes paid, net of refunds		0	0
Cash paid for operating lease liabilities		393	354
Supplemental non-cash activity:
Unfunded commitments in tax credit investments		5,503	2,025
Initital recognition of right-of-use lease assets		0	16,747
Initital recognition operating lease liabilities		0	18,067
Loans transferred to OREO		$ 0	$ 0

[1] Outside of the scope of ASC 606.