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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Statement of Cash Flows [Abstract] |  |
Net Cash Provided by (Used in) Operating Activities | $ 128,043 | $ (31,568)
INVESTING ACTIVITIES |  |
Purchases of securities | (153,587) | (80,292)
Proceeds from maturities, prepayments and calls of securities | 72,951 | 81,156
Proceeds from sales of securities | 1,917 | 1,349
Net proceeds from sales of Federal Home Loan Bank stock | 2,924 | 7,826
Net decrease (increase) in loans | 201,545 | (491,457)
Proceeds from sale of portfolio loans | 3,438 | 0
Purchases of premises and equipment | (1,926) | (2,862)
Proceeds from the sale of premises and equipment | 74 | 0
Net Cash Provided by (Used in) Investing Activities | 127,336 | (484,280)
FINANCING ACTIVITIES |  |
Net increase in core deposits | 712,568 | 902,933
Net decrease in certificates of deposit | (117,782) | (71,007)
Net increase in securities sold under repurchase agreements | 3,424 | 72,271
Net decrease in short-term borrowings | (75,000) | (196,778)
Repayments on long-term borrowings | (712) | (2,864)
Treasury shares issued-net | (302) | (594)
Cash dividends paid to common shareholders | (21,963) | (22,012)
Repurchase of common stock | 0 | (12,559)
Net Cash Provided by Financing Activities | 500,233 | 669,390
Net increase in cash and cash equivalents | 755,612 | 153,542
Cash and cash equivalents at beginning of period | 229,666 | 197,823
Cash and Cash Equivalents at End of Period | 985,278 | 351,365
Supplemental Disclosures |  |
Loans transferred to held for sale | 2,798 | 0
Interest paid | 9,114 | 29,721
Income taxes paid, net of refunds | 12,097 | 210
Transfers of loans to other real estate owned | $ 90 | $ 513

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