Consolidated Statements of Cash Flows (Unaudited) - USD ($)		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020
Cash Flows from Operating Activities:
Net income		$ 50,582,000	$ 24,243,000
Adjustments to reconcile net income to net cash provided by operating activities:
Net amortization of premiums, discounts and deferred loan fees and costs		(3,101,000)	11,887,000
Depreciation and amortization		1,811,000	1,661,000
Amortization of intangible assets		447,000	526,000
Amortization of operating lease right-of-use assets		1,368,000	1,328,000
(Benefit) provision for credit losses	[1]	(8,601,000)	18,223,000
Loans originated for sale		(32,063,000)	(36,273,000)
Proceeds from sales of loans held for sale		33,897,000	36,348,000
Gains on investment securities transactions, net		(9,000)	(342,000)
Change in fair value of equity securities		133,000	455,000
Gains on sales of loans held for sale		(1,315,000)	(1,125,000)
Gains on other real estate and other repossessed assets		(8,000)	(60,000)
Losses on sales of premises and equipment		(4,000)	52,000
Impairment of property held for sale		400,000	0
Long-term debt prepayment penalty		0	356,000
Stock-based compensation		2,196,000	1,461,000
Excess tax deficiencies		(93,000)	(113,000)
Decrease (increase) in other assets		27,361,000	(80,951,000)
(Decrease) increase in other liabilities		(26,867,000)	80,263,000
Net Cash Provided by Operating Activities		46,134,000	57,939,000
Cash Flows from Investing Activities:
Proceeds from repayments and maturities of available for sale securities		114,301,000	367,843,000
Proceeds from repayments and maturities of held to maturity securities		22,227,000	13,847,000
Proceeds from sales of available for sale securities		0	94,696,000
Purchase of available for sale securities		(259,654,000)	(507,234,000)
Purchase of held to maturity securities		(26,203,000)	0
Purchase of equity securities		(879,000)	(1,164,000)
Proceeds from redemptions of Federal Home Loan Bank stock		13,524,000	83,660,000
Purchases of Federal Home Loan Bank stock		(10,755,000)	(80,143,000)
Net decrease (increase) in loans		23,010,000	(627,545,000)
Proceeds from sales of loans held for investment		15,031,000	0
Proceeds from sales of other real estate and repossessed assets		8,000	662,000
Proceeds from dispositions and sales of premises and equipment		123,000	(21,000)
Purchases of premises and equipment		(2,630,000)	(3,528,000)
Net Cash Used in Investing Activities		(111,897,000)	(658,927,000)
Cash Flows from Financing Activities:
Net increase in deposits		259,277,000	831,869,000
Decrease in federal funds purchased and securities sold under agreements to repurchase		(69,370,000)	(145,542,000)
Proceeds from other borrowings		0	25,000,000
Repayments of other borrowings		0	(35,456,000)
Purchase of treasury stock		0	(1,452,000)
Repayments of subordinated debt		(5,000,000)	0
Exercise of stock options		19,000	0
Retirement of restricted stock		(656,000)	(467,000)
Dividends paid		(13,197,000)	(12,728,000)
Net Cash Provided by Financing Activities		171,073,000	661,224,000
Net increase in cash and cash equivalents		105,310,000	60,236,000
Cash and cash equivalents, beginning of period		270,090,000	282,371,000
Cash and cash equivalents, end of period		375,400,000	342,607,000
Supplemental schedule of non-cash investing and financing activities:
Cash paid during the period for income taxes		16,274,000	12,786,000
Cash paid during the period for interest		13,141,000	24,601,000
Transfer of loans to loans held for sale		15,111,000	0
Transfer of loans to other real estate owned		0	393,000
Right-of-use asset obtained in exchange for new operating lease liabilities		$ 109,000	$ 548,000

[1] The Company adopted ASU 2016-13 as of December 31, 2020. Prior year periods have not been restated.