CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021
Operating Activities
Net Income		$ 31,821	$ 37,883
Adjustments to reconcile net income to net cash provided by operating activities:
Originations of mortgage loans held for sale		(91,275)	(277,778)
Proceeds from the sale of mortgage loans		95,846	312,474
Gain on sale of mortgage loans, net of origination costs		(2,165)	(9,084)
Provision (credit) for credit losses		1,270	(5,359)
Depreciation and amortization expense		1,774	1,826
Investment securities amortization and accretion, net		2,166	3,733
Stock-based compensation expense		1,517	1,514
Amortization of core deposit intangible assets		313	328
Purchase accounting accretion, net		(126)	(435)
Net decrease in derivative collateral posted		30,470	22,090
Decrease in other assets		1,265	3,385
Decrease in other liabilities		(3,361)	(6,072)
Net cash provided by operating activities		69,515	84,505
Investing Activities
Proceeds from available-for-sale debt securities		130,634	175,036
Purchase of available-for-sale debt securities		80,868	482,156
Proceeds from Sale and Maturity of Held-to-maturity Securities		371	0
Payments to Acquire Held-to-maturity Securities		(24,502)	0
Net increase in loans		(293,288)	(66,366)
Purchase of Federal Home Loan Bank stock		(14,840)	(12)
Proceeds from sale of Federal Home Loan Bank stock		10,689	1,329
Purchase of premises and equipment		952	1,176
Recoveries of previously charged-off loans		374	208
Proceeds from the sale of other real estate owned		287	465
Net cash used in investing activities		(272,095)	(372,672)
Financing Activities
Net (decrease) increase in deposits		(81,828)	288,870
Net proceeds from borrowings less than 90 days		159,894	7,974
Repayments of Federal Home Loan Bank long-term advances		0	25,000
Repayment of subordinated debt		0	(15,000)
Common stock repurchases		(7,413)	(11)
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings		(390)	(308)
Cash dividends paid on common stock		11,805	10,323
Finance lease payments		(80)	(76)
Net cash provided by financing activities		58,378	246,126
Net decrease in cash, cash equivalents and restricted cash		(144,202)	(42,041)
Cash, cash equivalents, and restricted cash at beginning of period		220,625	145,774
Cash, cash equivalents and restricted cash at end of period		76,423	103,733
Supplemental information
Transfer from available-for-sale securities to held-to-maturity securities	[1]	592,438	0
Interest paid		5,858	5,874
Income taxes paid		4,811	10,294
Transfer from premises to other real estate owned		$ 0	$ 204

[1] During the three months ended June 30, 2022, the Company transferred securities from available-for-sale to held-to-maturity in a non-cash transaction. The amount of $592.4 million was the amortized cost basis of the securities as of the date of transfer. The fair value of the securities at the date of transfer was $520.3 million. The net pretax unrealized losses of $72.1 million was included in AOCI. Refer to Note 3 for further details.