Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities
Net Income	$ 69,389	$ 28,578
Provision for credit losses	1,023	37,826
Deferred tax expense (benefit)	2,863	(3,387)
Depreciation and amortization	5,931	5,549
Net gains on securities and other assets	(13,205)	(5,896)
Net amortization of premiums and discounts on securities	2,588	2,993
Income from increase in cash surrender value of bank owned life insurance	(3,132)	(3,149)
Decrease (increase) in interest receivable	3,697	(10,218)
Mortgage loans originated for sale	(210,746)	(155,916)
Proceeds from sale of mortgage loans	231,321	150,821
Decrease in interest payable	(357)	(484)
(Decrease) increase in income taxes payable	(1,870)	9,349
Increase (Decrease) in Other Operating Assets and Liabilities, Net	14,178	4,875
Net cash provided by operating activities	73,324	51,191
Investing Activities
Proceeds from sale and maturity of held-to-maturity securities	59,170	42,175
Payments to Acquire Held-to-maturity Securities	(312,247)	(200)
Proceeds from Sale of Available-for-sale Securities	0	0
Proceeds from maturities and redemptions of available-for-sale securities	285,216	125,162
Purchases of available-for-sale securities	(560,180)	(127,368)
Purchases of FHLB stock	(2,134)	(20,927)
Proceeds from the redemption of FHLB stock	2,834	25,416
Proceeds from Life Insurance Policy	3,097	201
Proceeds from Sale of Loans Receivable	33,824	10,335
Proceeds from sale of other assets	4,979	3,173
Net increase in loans	(17,885)	(752,191)
Payments for Purchase of Other Assets	(3,909)	(5,363)
Net cash used in investing activities	(507,235)	(699,587)
Financing Activities
Net decrease in other short-term borrowings	(10,001)	(93,369)
Net increase in deposits	446,426	1,104,794
Repayments of other long-term debt	(50,339)	(327)
Repayments of Long-term Capital Lease Obligations	230	213
Payments of Dividends	(21,641)	(21,614)
Proceeds from reissuance of treasury stock	222	222
Purchase of treasury stock	(2,654)	(5,220)
Net cash provided by financing activities	361,783	984,273
Net (decrease) increase in cash and cash equivalents	(72,128)	335,877
Cash and cash equivalents at January 1	356,581	121,856
Cash and cash equivalents at June 30	$ 284,453	$ 457,733