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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |
Net income (loss) | $ 124,080 | $ 93,531 | $ 133,377 | $ (14,038)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |  |
Accretion of investment discounts, net | (17,693) |  |  | (7,668)
Gain on sale of investment securities, net | (12) |  |  | 0
Provision for credit losses | 17,136 |  |  | 105,539
Change in cash surrender value of bank-owned life insurance | (4,672) |  |  | (491)
Depreciation, amortization and accretion | 39,962 |  |  | 19,043
Gain on sale of premises and equipment | (183) |  |  | (305)
Additions to residential mortgage servicing rights carried at fair value | (1,237) |  |  | (1,601)
Change in fair value of residential mortgage servicing rights carried at fair value | 36 |  |  | 7,818
Stock-based compensation | 4,422 |  |  | 5,644
Net (increase) decrease in equity and other investments | (1,773) |  |  | 131
Loss (gain) on equity securities, net | 1,565 |  |  | (2,416)
Gain on sale of loans and leases, net | (1,605) |  |  | (2,996)
Change in fair value of loans held for sale | (189) |  |  | (82)
Origination of loans held for sale | (86,903) |  |  | (131,726)
Proceeds from sales of loans held for sale | 71,990 |  |  | 155,574
Change in other assets and liabilities: |  |  |  |
Net increase in other assets | (38,767) |  |  | (51,404)
Net increase (decrease) in other liabilities | 79,351 |  |  | (119,989)
Net cash provided by (used in) operating activities | 185,508 |  |  | (38,967)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |
Purchases of investment securities available for sale | (2,130) |  |  | (919,233)
Proceeds from investment securities available for sale | 110,458 |  |  | 1,243,601
Purchases of restricted equity securities | (11,250) |  |  | (188,066)
Redemption of restricted equity securities | 74,250 |  |  | 90,695
Net change in loans and leases | (263,625) |  |  | (59,389)
Proceeds from sales of loans and leases | 18,980 |  |  | 20,502
Change in premises and equipment | 5,899 |  |  | 3,486
Proceeds from bank-owned life insurance death benefits | 1,160 |  |  | 2,028
Cash received in the Merger | 0 |  |  | 274,587
Other | 381 |  |  | 74
Net cash (used in) provided by investing activities | (77,675) |  |  | 461,313
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |
Net increase (decrease) in deposit liabilities | 99,140 |  |  | (672,737)
Net decrease in federal funds purchased | 0 |  |  | (14,000)
Net decrease in securities sold under agreements to repurchase | (38,546) |  |  | (107,747)
Proceeds from borrowings | 3,900,000 |  |  | 5,945,000
Repayment of borrowings | (3,950,000) |  |  | (3,181,522)
Dividends paid on common stock | (74,997) |  |  | (45,582)
Repurchase and retirement of common stock | (4,847) |  |  | (5,216)
Net cash (used in) provided by financing activities | (69,250) |  |  | 1,918,196
Net increase in cash and cash equivalents | 38,583 |  |  | 2,340,542
Cash and cash equivalents, beginning of period | 2,162,534 |  | $ 3,635,185 | 1,294,643
Cash and cash equivalents, end of period | 2,201,117 | $ 2,162,534 |  | 3,635,185
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: |  |  |  |
Interest | 278,634 |  |  | 83,836
Income taxes | 566 |  |  | 11,407
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES: |  |  |  |
Changes in unrealized gains and losses on investment securities available for sale, net of taxes | (90,778) |  |  | 107,611
Changes in unrealized gains and losses on junior subordinated debentures carried at fair value, net of taxes | 4,775 |  |  | 19,101
Umpqua Bank and Columbia Banking System Merger |  |  |  |
Asset Acquisition [Line Items] |  |  |  |
Assets acquired | 0 |  |  | 19,226,816
Liabilities assumed | 0 |  |  | (17,919,326)
Net assets acquired | $ 0 |  |  | $ 1,307,490

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