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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Cash Flows From Operating Activities |  |  |
Net income | $ 202,820 | $ 154,244 | $ 194,451
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Provision for credit losses | 4,800 | 77,700 | 3,493
Stock-based compensation expense | 14,926 | 10,737 | 9,271
Depreciation, amortization and accretion | 23,168 | 14,893 | 34,213
Investment securities gain, net | (314) | (16,710) | (2,132)
Net realized gain on sale of premises and equipment, loans held for investment and OPPO | (500) | (1,334) | (7,317)
Net realized loss (gain) on sale and valuation adjustments of OREO | (40) | 34 | 602
Gain on bank owned life insurance death benefit | (344) | 0 | (3,051)
Originations of loans held for sale | (336,455) | (491,385) | (210,484)
Proceeds from sale of loans held-for-sale | 352,823 | 483,130 | 196,615
Change in Fair Value of Loans Held-for-sale | 339 | (508) | 0
Deferred income tax expense (benefit) | (6,629) | (13,768) | 330
Net change in: |  |  |
Interest receivable | 4,049 | (7,992) | (1,516)
Interest payable | 62 | (933) | 632
Other assets | 6,815 | (48,539) | (23,464)
Other liabilities | (30,535) | 32,791 | 14,308
Net cash provided by operating activities | 235,065 | 192,292 | 204,747
Cash Flows From Investing Activities |  |  |
Loans originated, net of principal collected | 174,463 | (619,543) | (291,857)
Investment in low income housing tax credit partnerships | (1,408) | 0 | 0
Purchases of Debt Securities, Available-for-sale | (3,128,233) | (2,118,667) | (1,196,895)
Purchases of Held-to-maturity Securities | (257,503) | 0 | 0
Purchases of loans held for investment | 279,734 | 50,035 | 57,075
Purchases of premises and equipment | (6,125) | (8,720) | (8,447)
Purchases of Federal Home Loan Bank stock | (1) | (53,240) | (273,800)
Proceeds from Sale of Debt Securities, Available-for-sale | 89,219 | 194,697 | 259,554
Proceeds from Sale of Equity Securities | 0 | 3,000 | 0
Proceeds from principal repayments and maturities of securities available for sale | 764,253 | 603,129 | 428,025
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities | 107,578 | 0 | 0
Proceeds from sales of premises and equipment and loans held for investment | 15,880 | 2,948 | 8,634
Proceeds from redemption of Federal Home Loan Bank Stock | 7,464 | 91,080 | 251,640
Proceeds from sales of other real estate owned and other personal property owned | 132 | 1,074 | 6,506
Proceeds from bank owned life insurance death benefit | 671 | 1,050 | 8,265
Proceeds from Termination of Cash Flow Hedging Instrument | 0 | 34,442 | 0
Net cash received in business combinations | 154,984 | 0 | 0
Net cash used in investing activities | (2,358,360) | (1,918,785) | (865,450)
Cash Flows From Financing Activities |  |  |
Net increase in deposits | 2,402,669 | 3,185,167 | 226,958
Net increase in sweep repurchase agreements | 12,154 | 9,422 | 3,343
Proceeds from employee stock purchase plan | 2,350 | 2,028 | 2,025
Proceeds from Federal Home Loan Bank advances | 30 | 1,331,000 | 6,845,000
Proceeds from Federal Reserve Bank borrowings | 40 | 222,010 | 36,000
Proceeds from other borrowings | 0 | 9,222 | 100
Payments for Federal Home Loan Bank advances | (30) | (2,277,000) | (6,291,000)
Payments for Federal Reserve Bank borrowings | (40) | (222,010) | (36,000)
Payments for other borrowings | 0 | (9,222) | (100)
Payments for common stock dividends | (83,790) | (95,509) | (101,911)
Repayments of Subordinated Debt | (35,000) | 0 | 0
Payments for purchase of treasury stock | 0 | (20,000) | (50,834)
Payments for purchase and retirement of common stock | 4,140 | 2,522 | 2,792
Net cash provided by financing activities | 2,294,243 | 2,132,586 | 630,789
Increase (decrease) in cash and cash equivalents | 170,948 | 406,093 | (29,914)
Cash and cash equivalents at beginning of period | 653,766 | 247,673 | 277,587
Supplemental Information: |  |  |
Interest paid | 8,484 | 18,631 | 35,916
Income taxes paid, net of refunds | 60,562 | 43,287 | 47,375
Non-cash investing and financing activities: |  |  |
Transfer of debt securities AFS to HTM | 2,012,123 | 0 | 0
Loans transferred to OREO | 0 | 1,033 | 386
Common stock issued in connection with acquistion | 256,061 | 0 | 0
Premises and equipment expenditures incurred but not yet paid | 63 | 302 | 451
Change in dividends payable on unvested shares included in other liabilities | $ 51 | $ 706 | $ 354

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- Definition The aggregate amount of cash outflow for loans purchased and created with the intention to resell them in the near future. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3461-108585 + Details
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- Definition Amount of cash inflow from the sale of investments classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of cash outflow for repayment of Federal Home Loan Bank (FHLBank) borrowing, classified as financing activity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
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- Definition Amount of cash outflow for the payment of debt classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
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- Definition The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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- Definition Value transferred from mortgage loans to real estate owned (REO) in noncash transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586 + Details
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