Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Condensed Consolidated Statements of Cash Flows [Abstract]
Net Income		$ 22,037	$ 4,810
Adjustments to Reconcile Net Income to Net Cash From Operating Activities
Proceeds from sales of loans held for sale		392,844	241,856
Disbursements for loans held for sale		(365,381)	(227,765)
Provision for credit losses	[1]	(474)
Provision for credit losses	[1]		6,721
Deferred income tax expense (benefit)		2,067	(1,925)
Net deferred loan fees (costs)		2,982	(358)
Net depreciation, amortization of intangible assets and premiums and accretion of discounts on securities, loans and interest bearing deposits - time		3,158	1,795
Net gains on mortgage loans		(12,828)	(8,840)
Net gains on securities available for sale		(1,416)	(253)
Share based compensation		442	547
Increase in accrued income and other assets		(8,461)	5,095
Increase in accrued expenses and other liabilities		95	599
Total Adjustments		13,028	17,472
Net Cash From Operating Activities		35,065	22,282
Cash Flow Used in Investing Activities
Proceeds from the sale of securities available for sale		78,179	21,743
Proceeds from maturities, prepayments and calls of securities available for sale		107,834	42,744
Purchases of securities available for sale		(367,654)	(103,901)
Proceeds from the maturity of interest bearing deposits - time		0	350
Net increase in portfolio loans (loans originated, net of principal payments)		(52,939)	(22,432)
Proceeds from the sale of portfolio loans		0	2,395
Proceeds from bank-owned life insurance		0	945
Proceeds from the sale of other real estate and repossessed assets		733	328
Capital expenditures		(1,947)	(760)
Net Cash Used in Investing Activities		(235,794)	(58,588)
Net Cash From Financing Activities
Net increase in total deposits		221,220	46,837
Net increase (decrease) in other borrowings		(6)	6,296
Proceeds from Federal Home Loan Bank advances		0	160,000
Payments of Federal Home Loan Bank advances		0	(153,000)
Dividends paid		(4,592)	(4,477)
Proceeds from issuance of common stock		19	11
Repurchase of common stock		(3,601)	(13,784)
Share based compensation withholding obligation		(509)	(590)
Net Cash From Financing Activities		212,531	41,293
Net Increase in Cash and Cash Equivalents		11,802	4,987
Cash and Cash Equivalents at Beginning of Period		118,705	65,304
Cash and Cash Equivalents at End of Period		130,507	70,291
Cash paid during the period for
Interest		1,669	5,489
Income taxes		0	0
Operating leases		439	476
Transfers to other real estate and repossessed assets		133	66
Purchase of securities available for sale not yet settled		7,212	10,497
Securitization of portfolio loans		0	26,325
Right of use assets obtained in exchange for lease obligations		$ 0	$ 116

[1] Beginning January 1, 2021, calculation is based on CECL methodology. Prior to January 1, 2021, calculation was based on the probable incurred loss methodology.