Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities:
Net Income	$ 32,866	$ 28,431
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Provision for Credit Losses	1,250	300
Depreciation and Amortization	1,318	1,414
Net Amortization of Investment Security Premiums & Discounts	797	397
Amortization of Core Deposit Intangible	306	313
Accretion of Discount on Acquired Loans	(37)	(117)
Net Gain on Sale of Investment Securities	(2,554)	(13)
Net Gain on Sale of Property & Equipment	(36)	(62)
Net Change in Operating Assets & Liabilities:
Net (Increase) Decrease in Interest Receivable and Other Assets	(20,752)	1,953
Net Increase (Decrease) in Interest Payable and Other Liabilities	14,280	(3,217)
Net Cash Provided by Operating Activities	27,438	29,399
Investing Activities:
Purchase of Investment Securities Available-for-Sale	(257,225)	(150,342)
Proceeds from Sold, Matured or Called Securities Available-for-Sale	381,117	106,840
Purchase of Investment Securities Held-to-Maturity	(124,070)	(15,068)
Proceeds from Matured or Called Securities Held-to-Maturity	13,140	6,243
Net Loans & Leases Paid, Originated or Acquired	66,550	(391,622)
Additions to Premises and Equipment, Net	(377)	(3,877)
Purchase of Other Investments	(1,656)	(3,230)
Proceeds from Sale of Property & Equipment	74	77
Net Cash Provided by (Used in) Investing Activities	77,553	(450,979)
Financing Activities:
Net Increase in Deposits	351,797	504,014
Cash Dividends	(5,922)	(5,753)
Cash Dividends Returned	7	0
Net Cash Provided by Financing Activities	345,882	498,261
Net Change in Cash and Cash Equivalents	450,873	76,681
Cash and Cash Equivalents at Beginning of Period	383,837	294,758
Cash and Cash Equivalents at End of Period	834,710	371,439
Supplementary Data
Cash Payments Made for Income Taxes	19,181	17
Issuance of Common Stock to the Bank's Non-Qualified Retirement Plans	0	403
Interest Paid	3,220	6,427
Supplementary Noncash Disclosure
Investment Securities Available-for-Sale Transferred to Held-to-Maturity	316,925	0
Security Purchase Settled in Subsequent Period	$ 0	$ (2,507)