Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020
Condensed Consolidated Statements of Cash Flows [Abstract]
Net Income		$ 34,425	$ 19,582
Adjustments to Reconcile Net Income to Net Cash From Operating Activities
Proceeds from sales of loans held for sale		708,526	637,682
Disbursements for loans held for sale		(653,925)	(625,106)
Provision for credit losses	[1]	(1,899)
Provision for credit losses	[1]		11,909
Deferred income tax benefit		(251)	(2,427)
Net deferred loan fees (costs)		(345)	7,433
Net depreciation, amortization of intangible assets and premiums and accretion of discounts on securities and loans		6,279	4,124
Net gains on mortgage loans		(21,919)	(26,482)
Net gains on securities available for sale		(1,416)	(253)
Share based compensation		947	1,009
(Increase) decrease in accrued income and other assets		(9,205)	3,596
Increase in accrued expenses and other liabilities		5,381	12,886
Total Adjustments		32,173	24,371
Net Cash From Operating Activities		66,598	43,953
Cash Flow Used in Investing Activities
Proceeds from the sale of securities available for sale		81,178	36,593
Proceeds from maturities, prepayments and calls of securities available for sale		222,767	111,349
Purchases of securities available for sale		(546,621)	(447,645)
Proceeds from the maturity of interest bearing deposits - time		0	350
Purchase of Federal Home Loan Bank stock		0	(68)
Net increase in portfolio loans (loans originated, net of principal payments)		(79,241)	(181,765)
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		854	262
Capital expenditures		(3,081)	(1,653)
Net Cash Used in Investing Activities		(324,144)	(479,237)
Cash Flow From Financing Activities
Net increase in total deposits		225,111	448,398
Net decrease in other borrowings		(7)	(25,004)
Proceeds from Federal Home Loan Bank Advances		0	239,254
Payments of Federal Home Loan Bank Advances		0	(252,910)
Proceeds from issuance of subordinated debt, net of issuance costs		0	39,277
Dividends paid		(9,166)	(8,855)
Proceeds from issuance of common stock		49	11
Repurchase of common stock		(7,285)	(13,784)
Share based compensation withholding obligation		(607)	(591)
Net Cash From Financing Activities		208,095	425,796
Net Decrease in Cash and Cash Equivalents		(49,451)	(9,488)
Cash and Cash Equivalents at Beginning of Period		118,705	65,304
Cash and Cash Equivalents at End of Period		69,254	55,816
Cash paid during the period for
Interest		4,393	9,126
Income taxes		8,659	0
Operating leases		867	936
Transfers to other real estate and repossessed assets		210	66
Purchase of securities available for sale not yet settled		23,825	2,450
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.