CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
OPERATING ACTIVITIES
Net (loss) income	$ (3,136)	$ 75,965
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	124,294	12,767
Provision for unfunded loan commitments	0	303
Net depreciation, amortization and accretion	3,469	4,413
Net amortization of discounts and premiums on securities	3,199	2,470
Stock-based compensation expense	845	1,820
Gain on sale of securities	(142)	0
Gain on the sale of mortgage loans, net	(5,919)	(1,300)
Mortgage loans originated for sale	(278,741)	(72,054)
Proceeds from the sale of mortgage loans	272,735	67,354
Net change in:
Interest receivable	(5,432)	(712)
Interest payable	(1,882)	(1,399)
Other assets	(170,288)	(31,570)
Other liabilities	57,996	34,737
Net Cash (Used in) Provided by Operating Activities	(3,002)	92,794
INVESTING ACTIVITIES
Purchases of securities	(90,348)	(37,123)
Proceeds from maturities, prepayments and calls of securities	176,103	68,906
Proceeds from sales of securities	1,349	0
Net proceeds from sales of Federal Home Loan Bank stock	7,200	4,038
Net increase in loans	(350,884)	(263,169)
Proceeds from sale of loans not originated for resale	0	520
Purchases of premises and equipment	(4,356)	(4,054)
Proceeds from the sale of premises and equipment	15	44
Net Cash Used in Investing Activities	(260,921)	(230,838)
FINANCING ACTIVITIES
Net increase in core deposits	746,580	394,439
Net decrease in certificates of deposit	(148,573)	(85,606)
Net increase (decrease) in securities sold under repurchase agreements	22,818	(4,458)
Net decrease in short-term borrowings	(198,319)	(100,000)
Repayments on long-term borrowings	(1,792)	(1,151)
Treasury shares issued-net	(594)	(915)
Common stock issuance costs	0	(125)
Cash dividends paid to common shareholders	(32,972)	(27,798)
Repurchase of common stock	(12,559)	(18,222)
Net Cash Provided by Financing Activities	374,589	156,164
Net increase in cash and cash equivalents	110,666	18,120
Cash and cash equivalents at beginning of period	197,823	155,489
Cash and Cash Equivalents at End of Period	308,489	173,609
Supplemental Disclosures
Loans transferred to held for sale	0	520
Leased right-of-use operating assets and lease liabilities	91	38,919
Interest paid	37,437	57,047
Income taxes paid, net of refunds	6,210	11,178
Transfers of loans to other real estate owned	$ 631	$ 492