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Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Cash flows from operating activities: |  |  |
Net income | $ 103,533,000 | $ 59,182,000 | $ 43,164,000
Adjustments to reconcile income to net cash provided by operating activities: |  |  |
Provision for credit losses | 18,247,000 | 18,050,000 | 3,000,000
Depreciation and amortization on premises and equipment | 7,420,000 | 7,953,000 | 7,181,000
Deferred tax expense | 3,012,000 | 9,203,000 | 3,145,000
Amortization of net premium on securities | 1,004,000 | 2,076,000 | 3,399,000
Accretion of net discount on acquired loans | (3,204,000) | (1,308,000) | (1,142,000)
Net change in deferred loan origination fees and costs | (1,178,000) | 1,182,000 | 617,000
Amortization of core deposits and other intangible assets | 4,822,000 | 4,215,000 | 1,417,000
Amortization of premium on acquired deposits | (966,000) | (1,052,000) | (45,000)
Accretion of discount on subordinated debt | 286,000 | 254,000 | 256,000
Amortization of issuance costs on subordinated debt | 147,000 | 145,000 | 93,000
Accretion of discount on convertible notes payable | 101,000 | 1,131,000 | 746,000
Accretion of discount on Federal Home Loan Bank advances | 0 | 76,000 | 0
Increase in cash surrender value of bank-owned life insurance | (1,928,000) | (1,682,000) | (1,276,000)
Impairment of premises and equipment | 0 | 720,000 | 0
Impairment of other real estate owned and foreclosed assets | 286,000 | 94,000 | 217,000
Federal Home Loan Bank stock dividends | (1,560,000) | (712,000) | (407,000)
Share-based compensation expense | 2,127,000 | 1,448,000 | 2,998,000
Decrease (increase) in fair value of mortgage servicing rights | 6,649,000 | (12,418,000) | 5,606,000
Net loss on sales of loans held-for-investment | 0 | 0 | 701,000
Net loss on disposal of premises and equipment | 120,000 | 86,000 | 76,000
Net loss (gain) on other real estate owned and foreclosed assets activity | 106,000 | (164,000) | (824,000)
Net gain on sales of loans held-for-sale | (3,491,000) | (11,782,000) | (61,403,000)
Origination of loans held-for-sale | (791,017,000) | (1,090,759,000) | (2,165,255,000)
Proceeds from sales of loans held-for-sale | 788,367,000 | 1,137,793,000 | 2,292,828,000
Changes in operating assets and liabilities: |  |  |
Lease right-of-use assets | (660,000) | 3,282,000 | 0
Accrued interest receivable | (8,556,000) | (9,835,000) | 655,000
Prepaid expenses and other assets | (11,397,000) | (22,992,000) | (6,769,000)
Accrued interest payable | 7,782,000 | 3,022,000 | (223,000)
Accrued expenses and other liabilities | 5,124,000 | (293,000) | (15,646,000)
Net cash provided by (used in) operating activities | 125,176,000 | 96,915,000 | 113,109,000
Cash flows from investing activities: |  |  |
Cash acquired in excess of cash paid in connection with Pioneer Merger | 0 | 444,542,000 | 0
Purchases of held-to-maturity securities | 0 | (335,000) | 0
Proceeds from maturities of held-to-maturity securities | 2,007,000 | 3,626,000 | 13,835,000
Purchases of available-for-sale securities | (21,555,000) | (66,606,000) | (248,736,000)
Proceeds from sale or maturities of available-for-sale securities | 41,669,000 | 170,410,000 | 131,899,000
Loan originations, net of repayments | (362,778,000) | (1,064,293,000) | (215,281,000)
Proceeds from the sale of loans held-for-sale previously classified as held-for-investment | 0 | 0 | 18,544,000
Purchases of premises and equipment | (4,268,000) | (2,196,000) | (3,455,000)
Proceeds from the sale of premises and equipment | 0 | 2,000 | 5,000
Proceeds from sales of other real estate owned and foreclosed assets | 5,952,000 | 867,000 | 2,089,000
Purchases of restricted equity securities | (51,076,000) | (39,785,000) | (57,000)
Proceeds from the sale or redemption of restricted equity securities | 64,779,000 | 15,842,000 | 7,400,000
Purchase of other investments | (2,677,000) | (939,000) | (686,000)
Proceeds from the sale or redemption of other investments | 668,000 | 745,000 | 519,000
Net cash used in investing activities | (327,279,000) | (538,120,000) | (293,924,000)
Cash flows from financing activities: |  |  |
Net change in deposits | 610,007,000 | (280,914,000) | 701,444,000
Net change in securities sold under agreements to repurchase | (12,028,000) | (55,372,000) | (23,278,000)
Proceeds from Federal Home Loan Bank advances | 2,041,468,000 | 760,885,000 | 0
Repayments of Federal Home Loan Bank advances | (2,295,885,000) | (317,000,000) | (30,411,000)
Proceeds from subordinated debt, net | 0 | 24,466,000 | 0
Proceeds from issuance of common stock, net of issuance costs | (167,000) | (579,000) | (456,000)
Repayments of convertible notes payable | (5,456,000) | (15,217,000) | 0
Net cash provided by financing activities | 337,939,000 | 116,269,000 | 647,299,000
Net increase (decrease) in cash and cash equivalents | 135,836,000 | (324,936,000) | 466,484,000
Cash and cash equivalents, beginning of period | 343,526,000 | 668,462,000 | 201,978,000
Cash and cash equivalents, end of period | 479,362,000 | 343,526,000 | 668,462,000
Supplemental disclosures of cash flow information: |  |  |
Interest paid on deposits | 92,085,000 | 12,040,000 | 8,753,000
Interest paid on borrowed funds | 20,459,000 | 14,118,000 | 5,667,000
Cash paid for income taxes, net | 28,459,000 | 6,183,000 | 6,601,000
Non-cash investing and financing activities: |  |  |
Assets acquired from merger with Pioneer Bancshares, Inc. | 0 | 1,085,506,000 | 0
Liabilities assumed from merger with Pioneer Bancshares, Inc. | 0 | 1,354,387,000 | 0
Right-of-use lease assets obtained in exchange for lessee operating lease liabilities | 2,696,000 | 35,212,000 | 0
Net change in unrealized loss on available-for-sale securities and unrealized gain on fair value hedges of securities available-for-sale | 1,291,000 | (45,647,000) | (9,870,000)
Loan charge-offs | 9,672,000 | 2,587,000 | 4,861,000
Premises and equipment transferred to other real estate owned and foreclosed assets | 0 | 338,000 | 1,038,000
Loans transferred to other real estate owned and foreclosed assets | 4,086,000 | 1,331,000 | 2,577,000
Mortgage servicing rights resulting from sale or securitization of mortgage loans | $ 9,253,000 | $ 14,287,000 | $ 23,854,000

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 13 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-13 + Details
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- Definition Amount of cash inflow from Federal Home Loan Bank (FHLBank) borrowing, classified as financing activity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
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- Definition The cash inflow from a borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in liquidation of the entity's assets or underlying collateral. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
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- Definition The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-11 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition The cash flow from investments sold under the agreement to repurchase such investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-9 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-8 + Details
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- Definition Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition The cash inflow associated with the sale and maturity (principal being due) of other investments, prepayment and call (request of early payment) of other investments not otherwise defined in the taxonomy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition Amount of cash inflow from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as investing activity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 19 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-19 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 45 -Paragraph 1 -SubTopic 10 -Topic 321 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479567/321-10-45-1 + Details
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- Definition The net cash inflow from (a) sales of loans held-for-investment, (b) sales of leases held-for-investment, and (c) both. Includes proceeds from securitizations of loans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-16 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-21 + Details
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- Definition The cash inflow associated with the sale of other real estate not otherwise defined in the taxonomy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + 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 -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition The cash outflow for a borrowing supported by a written promise to pay an obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 53 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479589/842-20-55-53 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (g)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + 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 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + 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 -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-4 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-3 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-5 + Details
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