10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

___________________

FORM 10-Q

___________________

☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

for the quarterly period ended: March 31, 2024

☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

for the transition period from                to              

Commission File Number: 000-10661

___________________

(Exact Name of Registrant as Specified in Its Charter)

___________________

CA	94-2792841
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification Number)

63 Constitution Drive

Chico, California 95973

(Address of Principal Executive Offices)(Zip Code)

(530) 898-0300

(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock	TCBK	The NASDAQ Stock Market

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ☒ Yes ☐ No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). ☒ Yes ☐ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “accelerated filer”, “large accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

☒	Large accelerated filer	☐	Accelerated filer
☐	Non-accelerated filer	☐	Smaller reporting company
☐	Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ☐ Yes ☒ No

Indicate the number of shares outstanding for each of the issuer’s classes of common stock, as of the latest practical date:

Common stock, no par value: 33,174,385 shares outstanding as of May 6, 2024.

TriCo Bancshares

FORM 10-Q

TABLE OF CONTENTS

	Page
PART I – FINANCIAL INFORMATION	3
Item 1 – Financial Statements (Unaudited)	3
Item 2 – Management’s Discussion and Analysis of Financial Condition and Results of Operations	37
Item 3 – Quantitative and Qualitative Disclosures about Market Risk	55
Item 4 – Controls and Procedures	55
PART II – OTHER INFORMATION	56
Item 1 – Legal Proceedings	56
Item 1A – Risk Factors	56
Item 2 – Unregistered Sales of Equity Securities and Use of Proceeds	56
Item 5 – Other Information
Item 6 – Exhibits	57
Signatures	58

1

GLOSSARY OF ACRONYMS AND TERMS

The following listing provides a comprehensive reference of common acronyms and terms used throughout the document:

ACL	Allowance for Credit Losses
AFS	Available-for-Sale
AOCI	Accumulated Other Comprehensive Income
ASC	Accounting Standards Codification
CDs	Certificates of Deposit
CDI	Core Deposit Intangible
CECL	Current Expected Credit Loss
CRE	Commercial Real Estate
CMO	Collateralized mortgage obligation
DFPI	State Department of Financial Protection and Innovation
FASB	Financial Accounting Standards Board
FDIC	Federal Deposit Insurance Corporation
FHLB	Federal Home Loan Bank
FRB	Federal Reserve Board
FTE	Fully taxable equivalent
GAAP	Generally Accepted Accounting Principles (United States of America)
HELOC	Home equity line of credit
HTM	Held-to-Maturity
LIBOR	London Interbank Offered Rate
NIM	Net interest margin
NPA	Nonperforming assets
OCI	Other comprehensive income
PCD	Purchase Credit Deteriorated
ROUA	Right-of-Use Asset
RSU	Restricted Stock Unit
SBA	Small Business Administration
SERP	Supplemental Executive Retirement Plan
SFR	Single Family Residence
SOFR	Secured Overnight Financing Rate
TDR	Troubled Debt Restructuring
VRB	Valley Republic Bancorp
XBRL	eXtensible Business Reporting Language

2

PART I – FINANCIAL INFORMATION

Item 1.    Financial Statements (unaudited)

TRICO BANCSHARES

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except share data; unaudited)

	March 31, 2024		December 31, 2023
Assets:
Cash and due from banks	$	73,322	$	81,626
Cash at Federal Reserve and other banks	9,514		17,075
Cash and cash equivalents	82,836		98,701
Investment securities:
Marketable equity securities	2,606		2,634
Available for sale debt securities, at fair value (amortized cost of $2,321,608 and $2,384,325)	2,073,888		2,152,504
Held to maturity debt securities, at amortized cost, net of allowance for credit losses of $0	127,811		133,494
Restricted equity securities	17,250		17,250
Loans held for sale	1,346		458
Loans	6,800,695		6,794,470
Allowance for credit losses	(124,394)		(121,522)
Total loans, net	6,676,301		6,672,948
Premises and equipment, net	71,001		71,347
Cash value of life insurance	137,695		136,892
Accrued interest receivable	35,783		36,768
Goodwill	304,442		304,442
Other intangible assets, net	9,522		10,552
Operating leases, right-of-use	26,240		26,133
Other assets	247,046		245,966
Total assets	$	9,813,767	$	9,910,089
Liabilities and Shareholders’ Equity:
Liabilities:
Deposits:
Noninterest-bearing demand	$	2,600,448	$	2,722,689
Interest-bearing	5,387,210		5,111,349
Total deposits	7,987,658		7,834,038
Accrued interest payable	10,224		8,445
Operating lease liability	28,299		28,261
Other liabilities	131,006		145,982
Other borrowings	392,409		632,582
Junior subordinated debt	101,120		101,099
Total liabilities	8,650,716		8,750,407
Commitments and contingencies (Note 9)
Shareholders’ equity:
Preferred stock, no par value: 1,000,000 shares authorized, zero issued and outstanding at March 31, 2024 and December 31, 2023	—		—
Common stock, no par value: 50,000,000 shares authorized; 33,168,770 and 33,268,102 issued and outstanding at March 31, 2024 and December 31, 2023, respectively	696,464		697,349
Retained earnings	630,954		615,502
Accumulated other comprehensive loss, net of tax	(164,367)		(153,169)
Total shareholders’ equity	1,163,051		1,159,682
Total liabilities and shareholders’ equity	$	9,813,767	$	9,910,089

See accompanying notes to unaudited condensed consolidated financial statements.

3

TRICO BANCSHARES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(In thousands, except per share data; unaudited)

	Three months ended March 31,
	2024		2023
Interest and dividend income:
Loans, including fees	$	96,485	$	82,415
Investments:
Taxable securities	17,449		18,622
Tax exempt securities	917		1,307
Dividends	380		304
Interest bearing cash at Federal Reserve and other banks	186		259
Total interest and dividend income	115,417		102,907
Interest expense:
Deposits	23,529		5,145
Other borrowings	7,378		2,809
Junior subordinated debt	1,774		1,617
Total interest expense	32,681		9,571
Net interest income	82,736		93,336
Provision for credit losses	4,305		4,195
Net interest income after credit loss provision	78,431		89,141
Non-interest income:
Service charges and fees	12,637		11,197
Gain on sale of loans	261		206
Loss on sale of investment securities	—		(164)
Asset management and commission income	1,128		934
Increase in cash value of life insurance	803		802
Other	942		660
Total non-interest income	15,771		13,635
Non-interest expense:
Salaries and related benefits	34,304		32,563
Other	22,200		21,231
Total non-interest expense	56,504		53,794
Income before provision for income taxes	37,698		48,982
Provision for income taxes	9,949		13,149
Net income	$	27,749	$	35,833
Per share data:
Basic earnings per share	$	0.83	$	1.08
Diluted earnings per share	$	0.83	$	1.07
Dividends per share	$	0.33	$	0.30

CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME

(In thousands; unaudited)

	Three months ended March 31,
	2024		2023
Net income	$	27,749	$	35,833
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on available for sale securities arising during the period	(11,198)		24,444
Change in minimum pension liability	—		—
Change in joint beneficiary agreements	—		—
Other comprehensive income (loss)	(11,198)		24,444
Comprehensive income	$	16,551	$	60,277

See accompanying notes to unaudited condensed consolidated financial statements.

4

TRICO BANCSHARES

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

(In thousands, except share and per share data; unaudited)

	Shares of Common Stock	Common Stock		Retained Earnings		Accumulated Other Comprehensive Income (Loss)		Total
Balance at January 1, 2023	33,331,513	$	697,448	$	542,873	$	(193,905)	$	1,046,416
Net income				35,833				35,833
Other comprehensive income						24,444		24,444
Stock options exercised	4,000	78						78
RSU vesting		728						728
PSU vesting		313						313
RSUs released	22,118							—
Repurchase of common stock	(162,381)	(3,399)		(4,196)				(7,595)
Dividends paid ($0.30 per share)				(9,972)				(9,972)
Three months ended March 31, 2023	33,195,250	$	695,168	$	564,538	$	(169,461)	$	1,090,245
Balance at January 1, 2024	33,268,102	$	697,349	$	615,502	$	(153,169)	$	1,159,682
Net income				27,749				27,749
Other comprehensive loss						(11,198)		(11,198)
Stock options exercised	—	—						—
RSU vesting		767						767
PSU vesting		431						431
RSUs released	—							—
Repurchase of common stock	(99,332)	(2,083)		(1,325)				(3,408)
Dividends paid ($0.33 per share)				(10,972)				(10,972)
Three months ended March 31, 2024	33,168,770	$	696,464	$	630,954	$	(164,367)	$	1,163,051

See accompanying notes to unaudited condensed consolidated financial statements.

5

TRICO BANCSHARES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands; unaudited)

	For the three months ended March 31,
	2024		2023
Operating activities:
Net income	$	27,749	$	35,833
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of premises and equipment, and amortization	1,508		1,566
Amortization of intangible assets	1,030		1,656
Provision for credit losses on loans	4,015		4,195
Amortization of investment securities premium, net	6		174
Loss on sale of investment securities	—		164
Originations of loans for resale	(10,858)		(6,281)
Proceeds from sale of loans originated for resale	10,151		8,058
Gain on sale of loans	(261)		(206)
Change in fair market value of mortgage servicing rights	(11)		209
Provision for losses on foreclosed assets	262		—
Gain on transfer of loans to foreclosed assets	(38)		—
Operating lease expense payments	(1,568)		(1,653)
Loss on disposal of fixed assets	5		—
Increase in cash value of life insurance	(803)		(802)
(Gain) loss on marketable equity securities	28		(42)
Equity compensation vesting expense	1,198		1,041
Change in:
Interest receivable	985		468
Interest payable	1,779		476
Amortization of operating lease ROUA	1,499		1,739
Other assets and liabilities, net	(11,596)		(7,640)
Net cash from operating activities	25,080		38,955
Investing activities:
Proceeds from maturities of securities available for sale	62,770		56,905
Proceeds from maturities of securities held to maturity	5,625		8,842
Proceeds from sale of available for sale securities	—		24,160
Loan origination and principal collections, net	(7,379)		26,558
Purchases of premises and equipment	(1,028)		(1,213)
Net cash from investing activities	59,988		115,252
Financing activities:
Net change in deposits	153,620		(303,148)
Net change in other borrowings	(240,173)		169,535
Repurchase of common stock, net of option exercises	(3,408)		(7,595)
Dividends paid	(10,972)		(9,972)
Exercise of stock options	—		78
Net cash used by financing activities	(100,933)		(151,102)
Net change in cash and cash equivalents	(15,865)		3,105
Cash and cash equivalents, beginning of period	98,701		107,230
Cash and cash equivalents, end of period	$	82,836	$	110,335

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Supplemental disclosure of noncash activities:
Unrealized gain (loss) on securities available for sale	$	(15,898)	$	34,540
Market value of shares tendered in-lieu of cash to pay for exercise of options and/or related taxes	—		621
Obligations incurred in conjunction with leased assets	1,327		4,484
Loans transferred to foreclosed assets	12		—
Supplemental disclosure of cash flow activity:
Cash paid for interest expense	$	30,902	$	9,095
Cash paid for income taxes	—		—

See accompanying notes to unaudited condensed consolidated financial statements.

7

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Note 1 - Summary of Significant Accounting Policies

Description of Business and Basis of Presentation

TriCo Bancshares (the “Company” or “we”) is a California corporation organized to act as a bank holding company for Tri Counties Bank (the “Bank”). The Company and the Bank are headquartered in Chico, California. The Bank is a California-chartered bank that is engaged in the general commercial banking business in 33 California counties. The consolidated financial statements are prepared in accordance with accounting policies generally accepted in the United States of America and general practices in the banking industry. All adjustments necessary for a fair presentation of these consolidated financial statements have been included and are of a normal and recurring nature. The financial statements include the accounts of the Company. All inter-company accounts and transactions have been eliminated in consolidation.

The Company has five capital subsidiary business trusts (collectively, the “Capital Trusts”) that issued trust preferred securities, including two organized by the Company and three acquired with the acquisition of North Valley Bancorp. For financial reporting purposes, the Company’s investments in the Capital Trusts of $1.8 million are accounted for under the equity method and, accordingly, are not consolidated and are included in other assets on the consolidated balance sheet. See the footnote Junior Subordinated Debt for additional information on borrowings outstanding.

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (the “2023 Annual Report”). The Company believes that the disclosures made are adequate to make the information not misleading.

Segment and Significant Group Concentration of Credit Risk

The Company grants agribusiness, commercial, consumer, and residential loans to customers located throughout California. The Company has a diversified loan portfolio within the business segments located in this geographical area. The Company currently classifies all its operation into one business segment that it denotes as community banking.

Geographical Descriptions

For the purpose of describing the geographical location of the Company’s operations, the Company has defined northern California as that area of California north of, and including, Stockton to the east and San Jose to the west; central California as that area of the state south of Stockton and San Jose, to and including, Bakersfield to the east and San Luis Obispo to the west; and southern California as that area of the state south of Bakersfield and San Luis Obispo.

Reclassification

Some items in the prior year consolidated financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior year net income or shareholders’ equity.

Cash and Cash Equivalents

Net cash flows are reported for loan and deposit transactions and other borrowings. For purposes of the consolidated statement of cash flows, cash, due from banks with original maturities less than 90 days, interest-earning deposits in other banks, and Federal funds sold are considered to be cash equivalents.

Allowance for Credit Losses - Securities

The Company measures expected credit losses on HTM debt securities on a collective basis by major security type, then further disaggregated by sector and bond rating. Accrued interest receivable on HTM debt securities was considered insignificant at March 31, 2024 and December 31, 2023 and is therefore excluded from the estimate of credit losses. The estimate of expected credit losses considers historical credit loss information that is adjusted for current conditions and reasonable and supportable forecasts based on current and expected changes in credit ratings and default rates. Based on the implied guarantees of the U. S. Government or its agencies related to certain of these investment securities, and the absence of any historical or expected losses, substantially all qualify for a zero loss

8

assumption. Management has separately evaluated its HTM investment securities from obligations of state and political subdivisions utilizing the historical loss data represented by similar securities over a period of time spanning nearly 50 years. As a result of this evaluation, management determined that the expected credit losses associated with these securities is not significant for financial reporting purposes and therefore, no allowance for credit losses has been recognized.

The Company evaluates AFS debt securities in an unrealized loss position to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or noncredit-related factors. Any impairment that is not credit related is recognized in other comprehensive income, net of applicable taxes. Credit-related impairment is recognized as an allowance for credit losses on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings. Both the allowance for credit losses and the adjustment to net income may be reversed if conditions change. However, if the Company intends to sell an impaired available for sale debt security or more likely than not will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount is recognized in earnings with a corresponding adjustment to the security's amortized cost basis. In evaluating available for sale debt securities in unrealized loss positions for impairment and the criteria regarding its intent or requirement to sell such securities, the Company considers the extent to which fair value is less than amortized cost, whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuers' financial condition, among other factors. Changes in the allowance for credit losses are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the ACL when management believes the uncollectability of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. No security credit losses were recognized during the three month periods ended March 31, 2024 and 2023, respectively.

Loans

Loans that management has the intent and ability to hold until maturity or payoff are reported at principle amount outstanding, net of deferred loan fees and costs. Loans are placed in nonaccrual status when reasonable doubt exists as to the full, timely collection of interest or principal, or a loan becomes contractually past due by 90 days or more with respect to interest or principal and is not well secured and in the process of collection. When a loan is placed on nonaccrual status, all interest previously accrued but not collected is reversed against interest income. Income on such loans is then recognized only to the extent that cash is received and where the future collection of principal is considered probable. Interest accruals are resumed on such loans only when they are brought fully current with respect to interest and principal and when, in the judgment of Management, the loan is estimated to be fully collectible as to both principal and interest. Accrued interest receivable is not included in the calculation of the allowance for credit losses.

Allowance for Credit Losses - Loans

The ACL is a valuation account that is deducted from the loan's amortized cost basis to present the net amount expected to be collected on the loans. Loans are charged-off against the allowance when management believes the recorded loan balance is confirmed as uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Regardless of the determination that a charge-off is appropriate for financial accounting purposes, the Company manages its loan portfolio by continually monitoring, where possible, a borrower's ability to pay through the collection of financial information, delinquency status, borrower discussion and the encouragement to repay in accordance with the original contract or modified terms, if appropriate.

Management estimates the allowance balance using relevant information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. Historical credit loss experience provides the basis for the estimation of expected credit losses, which captures loan balances as of a point in time to form a cohort, then tracks the respective losses generated by that cohort of loans over the remaining life. The Company identified and accumulated loan cohort historical loss data beginning with the fourth quarter of 2008 and through the current period. In situations where the Company's actual loss history was not statistically relevant, the loss history of peers, defined as financial institutions with assets greater than three billion and less than ten billion, were utilized to create a minimum loss rate. Adjustments to historical loss information are made for differences in relevant current loan-specific risk characteristics, such as historical timing of losses relative to the loan origination. In its loss forecasting framework, the Company incorporates forward-looking information through the use of macroeconomic scenarios applied over the forecasted life of the assets. These macroeconomic scenarios incorporate variables that have historically been key drivers of increases and decreases in credit losses. These variables include, but are not limited to changes in environmental conditions, such as California unemployment rates, household debt levels, changes in corporate debt yields, and U.S. gross domestic product.

PCD assets are assets acquired at a discount that is due, in part, to credit quality deterioration since origination. PCD assets are accounted for in accordance with ASC 326-20 and are initially recorded at fair value, by taking the sum of the present value of expected future cash flows and an allowance for credit losses, at acquisition. The allowance for credit losses for PCD assets is recorded through a gross-up of reserves on the balance sheet, while the allowance for acquired non-PCD assets, such as loans, is recorded through the provision for credit losses on the income statement, consistent with originated loans. Subsequent to acquisition, the allowance for credit losses for PCD loans will generally follow the same forward-looking estimation, provision, and charge-off process as non-PCD acquired and originated loans.

The Company has identified the following portfolio segments to evaluate and measure the allowance for credit loss:

Commercial real estate:

Commercial real estate - Non-owner occupied: These commercial properties typically consist of buildings which are leased to others for their use and rely on rents as the primary source of repayment. Property types are predominantly office, retail, or light industrial but the portfolio also has some special use properties. As such, the risk of loss associated with these properties is primarily driven by general

9

economic changes or changes in regional economies and the impact of such on a tenant’s ability to pay. Ultimately this can affect occupancy, rental rates, or both. Additional risk of loss can come from new construction resulting in oversupply, the costs to hold or operate the property, or changes in interest rates. The terms on these loans at origination typically have maturities from five to ten years with amortization periods from fifteen to thirty years.

Commercial real estate - Owner occupied: These credits are primarily susceptible to changes in the financial condition of the business operated by the property owner. This may be driven by changes in, among other things, industry challenges, factors unique to the operating geography of the borrower, change in the individual fortunes of the business owner, general economic conditions and changes in business cycles. When default is driven by issues related specifically to the business owner, collateral values tend to provide better repayment support and may result in little or no loss. Alternatively, when default is driven more by general economic conditions, the underlying collateral may have devalued more and thus result in larger losses in the event of default. The terms on these loans at origination typically have maturities from five to ten years with amortization periods from fifteen to thirty years.

Multifamily: These commercial properties are generally comprised of more than four rentable units, such as apartment buildings, with each unit intended to be occupied as the primary residence for one or more persons. Multifamily properties are also subject to changes in general or regional economic conditions, such as unemployment, ultimately resulting in increased vacancy rates or reduced rents or both. In addition, new construction can create an oversupply condition and market competition resulting in increased vacancy, reduced market rents, or both. Due to the nature of their use and the greater likelihood of tenant turnover, the management of these properties is more intensive and therefore is more critical to the preclusion of loss.

Farmland: While the Company has few loans that were originated for the purpose of the acquisition of these commercial properties, loans secured by farmland represent unique risks that are associated with the operation of an agricultural businesses. The valuation of farmland can vary greatly over time based on the property's access to resources including but not limited to water, crop prices, foreign exchange rates, government regulation or restrictions, and the nature of ongoing capital investment needed to maintain the quality of the property. Loans secured by farmland typically represent less risk to the Company than other agriculture loans as the real estate typically provides greater support in the event of default or need for longer term repayment.

Consumer loans:

SFR 1-4 1st DT Liens: The most significant drivers of potential loss within the Company's residential real estate portfolio relate general, regional, or individual changes in economic conditions and their effect on employment and borrowers cash flow. Risk in this portfolio is best measured by changes in borrower credit score and loan-to-value. Loss estimates are based on the general movement in credit score, economic outlook and its effects on employment and the value of homes and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate.

SFR HELOCs and Junior Liens: Similar to residential real estate term loans, HELOCs and junior liens performance is also primarily driven by borrower cash flows based on employment status. However, HELOCs carry additional risks associated with the fact that most of these loans are secured by a deed of trust in a position that is junior to the primary lien holder. Furthermore, the risk that as the borrower's financial strength deteriorates, the outstanding balance on these credit lines may increase as they may only be canceled by the Company if certain limited criteria are met. In addition to the allowance for credit losses maintained as a percent of the outstanding loan balance, the Company maintains additional reserves for the unfunded portion of the HELOC.

Other: The majority of consumer loans are secured by automobiles, with the remainder primarily unsecured revolving debt (credit cards). These loans are susceptible to three primary risks; non-payment due to income loss, over-extension of credit and, when the borrower is unable to pay, shortfall in collateral value, if any. Typically non-payment is due to loss of job and will follow general economic trends in the marketplace driven primarily by rises in the unemployment rate. Loss of collateral value can be due to market demand shifts, damage to collateral itself or a combination of those factors. Credit card loans are unsecured and while collection efforts are pursued in the event of default, there is typically limited opportunity for recovery. Loss estimates are based on the general movement in credit score, economic outlook and its effects on employment and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate.

Commercial and Industrial:

Repayment of these loans is primarily based on the cash flow of the borrower, and secondarily on the underlying collateral provided by the borrower. A borrower's cash flow may be unpredictable, and collateral securing these loans may fluctuate in value. Most often, collateral includes accounts receivable, inventory, or equipment. Collateral securing these loans may depreciate over time, may be difficult to appraise, may be illiquid and may fluctuate in value based on the success of the business. Actual and forecast changes in gross domestic product are believed to be corollary to losses associated with these credits.

Construction:

While secured by real estate, construction loans represent a greater level of risk than term real estate loans due to the nature of the additional risks associated with the not only the completion of construction within an estimated time period and budget, but also the need to either sell the building or reach a level of stabilized occupancy sufficient to generate the cash flows necessary to support debt service and operating costs. The Company seeks to mitigate the additional risks associated with construction lending by requiring borrowers to comply with lower loan to value ratios and additional covenants as well as strong tertiary support of guarantors. The loss forecasting model applies the historical rate of loss for similar loans over the expected life of the asset as adjusted for macroeconomic factors.

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Agriculture Production:

Repayment of agricultural loans is dependent upon successful operation of the agricultural business, which is greatly impacted by factors outside the control of the borrower. These factors include adverse weather conditions, including access to water, that may impact crop yields, loss of livestock due to disease or other factors, declines in market prices for agriculture products, changes in foreign exchange, and the impact of government regulations. In addition, many farms are dependent on a limited number of key individuals whose injury or death may significantly affect the successful operation of the business. Consequently, agricultural production loans may involve a greater degree of risk than other types of loans.

Leases:

The loss forecasting model applies the historical rate of loss for similar loans over the expected life of the asset. Leases typically represent an elevated level of credit risk as compared to loans secured by real estate as the collateral for leases is often subject to a more rapid rate of depreciation or depletion. The ultimate severity of loss is impacted by the type of collateral securing the exposure, the size of the exposure, the borrower’s industry sector, any guarantors and the geographic market. Assumptions of expected loss are conditioned to the economic outlook and the other variables discussed above.

Unfunded commitments:

The estimated credit losses associated with these unfunded lending commitments is calculated using the same models and methodologies noted above and incorporate utilization assumptions at time of default. The reserve for unfunded commitments is maintained on the consolidated balance sheet in other liabilities.

Accounting Standards Recently Issued or Adopted

FASB issued ASU 2024-02, Codification Improvements— Amendments to Remove References to the Concepts Statements. This ASU facilitates Codification updates for technical corrections such as conforming amendments, clarifications to guidance, simplifications to wording or the structure of guidance, and other minor improvements. The resulting amendments are referred to as Codification improvements. The amendments in this Update are not intended to result in significant accounting change for most entities. However, the Board recognizes that changes to that guidance may result in accounting change for some entities. Therefore, the amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2024. The adoption of this accounting guidance is not expected to have a material impact on the Company’s consolidated financial statements.

Note 2 - Investment Securities

The amortized cost, estimated fair values and allowance for credit losses of investments in debt securities are summarized in the following tables:

	March 31, 2024
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for Credit Losses		Estimated Fair Value
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	1,349,679	$	1	$	(179,488)	$	—	$	1,170,192
Obligations of states and political subdivisions	262,777		132		(28,732)		—		234,177
Corporate bonds	6,175		—		(429)		—		5,746
Asset backed securities	362,877		623		(3,827)		—		359,673
Non-agency collateralized mortgage obligations	340,100		—		(36,000)		—		304,100
Total debt securities available for sale	$	2,321,608	$	756	$	(248,476)	$	—	$	2,073,888
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	125,131	$	1	$	(9,239)	—		115,893
Obligations of states and political subdivisions	2,680		—		(45)		—		2,635
Total debt securities held to maturity	$	127,811	$	1	$	(9,284)	$	—	$	118,528

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	December 31, 2023
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for Credit Losses		Estimated Fair Value
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	1,386,772	$	2	$	(165,037)	$	—	$	1,221,737
Obligations of states and political subdivisions	262,879		268		(26,772)		—		236,375
Corporate bonds	6,173		—		(571)		—		5,602
Asset backed securities	359,214		255		(4,188)		—		355,281
Non-agency collateralized mortgage obligations	369,287		—		(35,778)		—		333,509
Total debt securities available for sale	$	2,384,325	$	525	$	(232,346)	$	—	$	2,152,504
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	130,823	$	—	$	(8,331)	$	—	$	122,492
Obligations of states and political subdivisions	2,671		6		(43)		—		2,634
Total debt securities held to maturity	$	133,494	$	6	$	(8,374)	$	—	$	125,126

There were no sales of investment securities during the three months ended March 31, 2024. Proceeds from the sale of investment securities totaled $24.2 million for the three months ended March 31, 2023, resulting in gross realized losses of $0.2 million. Investment securities with an aggregate carrying value of $741.5 million and $702.2 million at March 31, 2024 and December 31, 2023, respectively, were pledged as collateral for specific borrowings, lines of credit or local agency deposits.

The amortized cost and estimated fair value of debt securities at March 31, 2024 by contractual maturity are shown below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. At March 31, 2024, obligations of U.S. government corporations and agencies with a cost basis totaling $1.3 billion consist almost entirely of residential real estate mortgage-backed securities whose contractual maturity, or principal repayment, will follow the repayment of the underlying mortgages. For purposes of the following table, the entire outstanding balance of these mortgage-backed securities issued by U.S. government corporations and agencies is categorized based on final maturity date. At March 31, 2024, the Company estimates the average remaining life of these mortgage-backed securities issued by U.S. government corporations and agencies to be approximately 7.25 years. Average remaining life is defined as the time span after which the principal balance has been reduced by half.

As of March 31, 2024, the contractual final maturity for available for sale and held to maturity investment securities is as follows:

Debt Securities	Available for Sale				Held to Maturity
(in thousands)	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year	$	51,718	$	51,226	$	—	$	—
Due after one year through five years	49,150		46,062		5,396		5,206
Due after five years through ten years	371,852		358,110		92,951		86,475
Due after ten years	1,848,888		1,618,490		29,464		26,847
Totals	$	2,321,608	$	2,073,888	$	127,811	$	118,528

Gross unrealized losses on debt securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were as follows:

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March 31, 2024:	Less than 12 months				12 months or more				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	442	$	(3)	$	1,169,687	$	(179,485)	$	1,170,129	$	(179,488)
Obligations of states and political subdivisions	6,760		(152)		219,908		(28,580)		226,668		(28,732)
Corporate bonds	—		—		5,746		(429)		5,746		(429)
Asset backed securities	94,861		(350)		146,838		(3,477)		241,699		(3,827)
Non-agency collateralized mortgage obligations	43,223		(523)		260,877		(35,477)		304,100		(36,000)
Total debt securities available for sale	$	145,286	$	(1,028)	$	1,803,056	$	(247,448)	$	1,948,342	$	(248,476)
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	—	$	—	$	115,660	$	(9,239)	$	115,660	$	(9,239)
Obligations of states and political subdivisions	1,618		(8)		1,018		(37)		2,636		(45)
Total debt securities held to maturity	$	1,618	$	(8)	$	116,678	$	(9,276)	$	118,296	$	(9,284)

December 31, 2023:	Less than 12 months				12 months or more				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	224	$	—	$	1,221,320	$	(165,037)	$	1,221,544	$	(165,037)
Obligations of states and political subdivisions	6,229		(75)		216,497		(26,697)		222,726		(26,772)
Corporate bonds	—		—		5,602		(571)		5,602		(571)
Asset backed securities	15,928		(93)		264,731		(4,095)		280,659		(4,188)
Non-agency collateralized mortgage obligations	44,276		(583)		289,233		(35,195)		333,509		(35,778)
Total debt securities available for sale	$	66,657	$	(751)	$	1,997,383	$	(231,595)	$	2,064,040	$	(232,346)
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	—	$	—	$	122,259	$	(8,331)	$	122,259	$	(8,331)
Obligations of states and political subdivisions	—		—		1,012		(43)		1,012		(43)
Total debt securities held to maturity	$	—	$	—	$	123,271	$	(8,374)	$	123,271	$	(8,374)

Obligations of U.S. government agencies: The unrealized losses on investments in obligations of U.S. government agencies are caused by interest rate increases and illiquidity. The contractual cash flows of these securities are guaranteed by U.S. Government Sponsored Entities (principally Fannie Mae and Freddie Mac). It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses recorded. At March 31, 2024, 168 debt securities representing obligations of U.S. government agencies had unrealized losses with aggregate depreciation of 13.29% from the Company’s amortized cost basis.

Obligations of states and political subdivisions: The unrealized losses on investments in obligations of states and political subdivisions were caused by increases in required yields by investors in these types of securities. It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses recorded as of March 31, 2024. At March 31, 2024, 157 debt securities representing obligations of states and political subdivisions had unrealized losses with aggregate depreciation of 11.25% from the Company’s amortized cost basis.

Corporate bonds: The unrealized losses on investments in corporate bonds were caused by increases in required yields by investors in these types of securities. It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses recorded as of March 31, 2024. At March 31, 2024, 6 debt securities representing corporate bonds had unrealized losses with aggregate depreciation of 6.95% from the Company’s amortized cost basis.

Asset backed securities: The unrealized losses on investments in asset backed securities were caused by increases in required yields by investors for these types of securities. At the time of purchase, each of these securities was rated AA or AAA and through March 31, 2024

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has not experienced any deterioration in credit rating. At March 31, 2024, 29 asset backed securities had unrealized losses with aggregate depreciation of 1.56% from the Company’s amortized cost basis. The Company continues to monitor these securities for changes in credit rating or other indications of credit deterioration. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses recorded as of March 31, 2024.

Non-agency collateralized mortgage obligations: The unrealized losses on investments in asset backed securities were caused by increases in required yields by investors in these types of securities. It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses as of and for the year ended March 31, 2024. At March 31, 2024, 22 asset backed securities had unrealized losses with aggregate depreciation of 10.59% from the Company’s amortized cost basis.

The Company monitors credit quality of debt securities held-to-maturity through the use of credit rating. The Company monitors the credit rating on a monthly basis. The following table summarizes the amortized cost of debt securities held-to-maturity at the dates indicated, aggregated by credit quality indicator:

	March 31, 2024				December 31, 2023
(in thousands)	AAA/AA/A		BBB/BB/B		AAA/AA/A		BBB/BB/B
Obligations of U.S. government agencies	$	125,131	$	—	$	130,823	$	—
Obligations of states and political subdivisions	2,680		—		2,671		—
Total debt securities held to maturity	$	127,811	$	—	$	133,494	$	—

Note 3 – Loans

A summary of loan balances at amortized cost are as follows:

(in thousands)	March 31, 2024		December 31, 2023
Commercial real estate:
CRE non-owner occupied	$	2,220,568	$	2,217,806
CRE owner occupied	974,968		956,440
Multifamily	982,290		949,502
Farmland	265,942		271,054
Total commercial real estate loans	4,443,768		4,394,802
Consumer:
SFR 1-4 1st DT liens	883,520		883,438
SFR HELOCs and junior liens	345,223		356,813
Other	75,014		73,017
Total consumer loans	1,303,757		1,313,268
Commercial and industrial	549,780		586,455
Construction	348,981		347,198
Agriculture production	145,159		144,497
Leases	9,250		8,250
Total loans, net of deferred loan fees and discounts	$	6,800,695	$	6,794,470
Total principal balance of loans owed, net of charge-offs	$	6,839,589	$	6,834,935
Unamortized net deferred loan fees	(15,588)		(15,826)
Discounts to principal balance of loans owed, net of charge-offs	(23,306)		(24,639)
Total loans, net of unamortized deferred loan fees and discounts	$	6,800,695	$	6,794,470
Allowance for credit losses on loans	$	(124,394)	$	(121,522)

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Note 4 – Allowance for Credit Losses

For the periods indicated, the following tables summarize the activity in the allowance for credit losses on loans which is recorded as a contra asset, and the reserve for unfunded commitments which is recorded on the balance sheet within other liabilities:

	Allowance for credit losses – Three months ended March 31, 2024
(in thousands)	Beginning Balance		Charge-offs		Recoveries		Provision (benefit)		Ending  Balance
Commercial real estate:
CRE non-owner occupied	$	35,077	$	—	$	—	$	1,610	$	36,687
CRE owner occupied	15,081		—		—		1,030		16,111
Multifamily	14,418		—		—		1,264		15,682
Farmland	4,288		—		—		(593)		3,695
Total commercial real estate loans	68,864		—		—		3,311		72,175
Consumer:
SFR 1-4 1st DT liens	14,009		(26)		—		157		14,140
SFR HELOCs and junior liens	10,273		(32)		49		(348)		9,942
Other	3,171		(250)		40		398		3,359
Total consumer loans	27,453		(308)		89		207		27,441
Commercial and industrial	12,750		(130)		22		(775)		11,867
Construction	8,856		—		—		306		9,162
Agriculture production	3,589		(837)		21		935		3,708
Leases	10		—		—		31		41
Allowance for credit losses on loans	121,522		(1,275)		132		4,015		124,394
Reserve for unfunded commitments	5,850		—		—		290		6,140
Total	$	127,372	$	(1,275)	$	132	$	4,305	$	130,534

In determining the allowance for credit losses, accruing loans with similar risk characteristics are generally evaluated collectively. To estimate expected losses the Company generally utilizes historical loss trends and the remaining contractual lives of the loan portfolios to determine estimated credit losses through a reasonable and supportable forecast period. Individual loan credit quality indicators including loan grade and borrower repayment performance have been statistically correlated with historical credit losses and various econometrics, including California unemployment, gross domestic product, and corporate bond yields. Model forecasts may be adjusted for inherent limitations or biases that have been identified through independent validation and back-testing of model performance to actual realized results.

The Company utilizes a forecast period of approximately eight quarters and obtains the forecast data from publicly available sources as of the balance sheet date. This forecast data continues to evolve and includes improving shifts in the magnitude of changes for both the unemployment and GDP factors leading up to the balance sheet date. Despite continued declines on a year over year comparative basis, core inflation remains elevated from wage pressures, and higher living costs such as housing, energy and food prices. Management notes the rapid intervals of rate increases by the Federal Reserve may create repricing risk for certain borrowers and continued inversion of the yield curve, creates informed expectations of the US potentially entering a recession within 12 months. While projected cuts in interest rates from the Federal Reserve during 2024 may improve this outlook, the uncertainty associated with the extent and timing of these potential reductions has inhibited a change to forecasted reserve levels. As a result, management continues to believe that certain credit weaknesses are likely present in the overall economy and that it is appropriate to maintain a reserve level that incorporates such risk factors.

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For the periods indicated, the following tables summarize the activity in the allowance for credit losses on loans which is recorded as a contra asset, and the reserve for unfunded commitments which is recorded on the balance sheet within other liabilities:

	Allowance for credit losses – Year ended December 31, 2023
(in thousands)	Beginning Balance		Charge-offs		Recoveries		Provision (benefit)		Ending Balance
Commercial real estate:
CRE non-owner occupied	$	30,962	$	—	$	—	$	4,115	$	35,077
CRE owner occupied	14,014		(3,637)		2		4,702		15,081
Multifamily	13,132		—		—		1,286		14,418
Farmland	3,273		—		—		1,015		4,288
Total commercial real estate loans	61,381		(3,637)		2		11,118		68,864
Consumer:
SFR 1-4 1st DT liens	11,268		—		262		2,479		14,009
SFR HELOCs and junior liens	11,413		(66)		723		(1,797)		10,273
Other	1,958		(558)		190		1,581		3,171
Total consumer loans	24,639		(624)		1,175		2,263		27,453
Commercial and industrial	13,597		(3,879)		316		2,716		12,750
Construction	5,142		—		—		3,714		8,856
Agriculture production	906		—		34		2,649		3,589
Leases	15		—		—		(5)		10
Allowance for credit losses on loans	105,680		(8,140)		1,527		22,455		121,522
Reserve for unfunded commitments	4,315		—		—		1,535		5,850
Total	$	109,995	$	(8,140)	$	1,527	$	23,990	$	127,372

	Allowance for credit losses – Three months ended March 31, 2023
(in thousands)	Beginning Balance		Charge-offs		Recoveries		Provision (benefit)		Ending Balance
Commercial real estate:
CRE non-owner occupied	$	30,962	$	—	$	—	$	2,001	$	32,963
CRE owner occupied	14,014		—		—		545		14,559
Multifamily	13,132		—		—		741		13,873
Farmland	3,273		—		—		269		3,542
Total commercial real estate loans	61,381		—		—		3,556		64,937
Consumer:
SFR 1-4 1st DT liens	11,268		—		—		652		11,920
SFR HELOCs and junior liens	11,413		(42)		65		(522)		10,914
Other	1,958		(142)		51		195		2,062
Total consumer loans	24,639		(184)		116		325		24,896
Commercial and industrial	13,597		(1,574)		53		(7)		12,069
Construction	5,142		—		—		513		5,655
Agriculture production	906		—		1		(74)		833
Leases	15		—		—		2		17
Allowance for credit losses on loans	105,680		(1,758)		170		4,315		108,407
Reserve for unfunded commitments	4,315		—		—		(120)		4,195
Total	$	109,995	$	(1,758)	$	170	$	4,195	$	112,602

As part of the on-going monitoring of the credit quality of the Company’s loan portfolio, management tracks certain credit quality indicators including, but not limited to, trends relating to (i) the level of criticized and classified loans, (ii) net charge-offs, (iii) non-performing loans, and (iv) delinquency within the portfolio. The Company analyzes loans individually to classify the loans as to credit risk and grading. This analysis is performed annually for all outstanding balances greater than $1 million and non-homogeneous loans, such as commercial real

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estate loans, unless other indicators, such as delinquency, trigger more frequent evaluation. Loans below the $1 million threshold and homogenous in nature are evaluated as needed for proper grading based on delinquency and borrower credit scores.

The Company utilizes a risk grading system to assign a risk grade to each of its loans. Loans are graded on a scale ranging from Pass to Loss. A description of the general characteristics of the risk grades is as follows:

•Pass – This grade represents loans ranging from acceptable to very little or no credit risk. These loans typically meet most if not all policy standards in regard to: loan amount as a percentage of collateral value, debt service coverage, profitability, leverage, and working capital.

•Special Mention – This grade represents “Other Assets Especially Mentioned” in accordance with regulatory guidelines and includes loans that display some potential weaknesses which, if left unaddressed, may result in deterioration of the repayment prospects for the asset or may inadequately protect the Company’s position in the future. These loans warrant more than normal supervision and attention.

•Substandard – This grade represents “Substandard” loans in accordance with regulatory guidelines. Loans within this rating typically exhibit weaknesses that are well defined to the point that repayment is jeopardized. Loss potential is, however, not necessarily evident. The underlying collateral supporting the credit appears to have sufficient value to protect the Company from loss of principal and accrued interest, or the loan has been written down to the point where this is true. There is a definite need for a well-defined workout/rehabilitation program.

•Doubtful – This grade represents “Doubtful” loans in accordance with regulatory guidelines. An asset classified as Doubtful has all the weaknesses inherent in a loan classified Substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. Pending factors include proposed merger, acquisition, or liquidation procedures, capital injection, perfecting liens on additional collateral, and financing plans.

•Loss – This grade represents “Loss” loans in accordance with regulatory guidelines. A loan classified as Loss is considered uncollectible and of such little value that its continuance as a bankable asset is not warranted. This classification does not mean that the loan has absolutely no recovery or salvage value, but rather that it is not practical or desirable to defer writing off the loan, even though some recovery may be affected in the future. The portion of the loan that is graded loss should be charged off no later than the end of the quarter in which the loss is identified.

Based on the most recent analysis performed, the risk category of loans by class of loans is as follows for the period indicated:

	Term Loans Amortized Cost Basis by Origination Year – As of March 31, 2024
(in thousands)	2024		2023		2022		2021		2020		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial real estate:
CRE non-owner occupied risk ratings
Pass	$	11,059	$	184,318	$	418,964	$	282,676	$	142,738	$	983,609	$	147,552	$	—	$	2,170,916
Special Mention	—		—		1,295		—		—		34,021		2,252		—		37,568
Substandard	—		—		—		767		—		11,317		—		—		12,084
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	11,059	$	184,318	$	420,259	$	283,443	$	142,738	$	1,028,947	$	149,804	$	—	$	2,220,568
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
CRE owner occupied risk ratings
Pass	$	33,662	$	75,002	$	201,423	$	185,995	$	114,912	$	313,351	$	23,631	$	—	$	947,976
Special Mention	—		—		5,724		2,318		2,935		4,372		—		—		15,349
Substandard	—		—		2,912		7,706		—		1,025		—		—		11,643
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	33,662	$	75,002	$	210,059	$	196,019	$	117,847	$	318,748	$	23,631	$	—	$	974,968
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

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	Term Loans Amortized Cost Basis by Origination Year – As of March 31, 2024
(in thousands)	2024		2023		2022		2021		2020		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial real estate:
Multifamily risk ratings
Pass	$	4,063	$	28,655	$	176,410	$	278,671	$	120,526	$	323,784	$	37,749	$	—	$	969,858
Special Mention	—		—		—		11,917		—		515		—		—		$	12,432
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	4,063	$	28,655	$	176,410	$	290,588	$	120,526	$	324,299	$	37,749	$	—	$	982,290
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
Farmland risk ratings
Pass	$	1,396	$	21,093	$	45,682	$	36,854	$	15,571	$	55,897	$	46,551	$	—	$	223,044
Special Mention	—		—		2,984		5,803		427		4,674		1,155		—		15,043
Substandard	—		101		—		8,913		—		11,904		6,937		—		27,855
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	1,396	$	21,194	$	48,666	$	51,570	$	15,998	$	72,475	$	54,643	$	—	$	265,942
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Consumer loans:
SFR 1-4 1st DT liens risk ratings
Pass	$	21,136	$	127,324	$	187,809	$	257,773	$	121,334	$	152,951	$	—	$	3,847	$	872,174
Special Mention	—		70		—		—		—		2,068		—		27		2,165
Substandard	—		268		144		1,280		1,479		5,571		—		439		9,181
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	21,136	$	127,662	$	187,953	$	259,053	$	122,813	$	160,590	$	—	$	4,313	$	883,520
Current period gross write-offs	$	—	$	26	$	—	$	—	$	—	$	—	$	—	$	—	$	26

Consumer loans:
SFR HELOCs and Junior Liens
Pass	$	278	$	—	$	—	$	—	$	—	$	89	$	330,942	$	6,527	$	337,836
Special Mention	—		—		—		—		—		—		3,416		204		3,620
Substandard	—		—		—		—		—		—		3,260		507		3,767
Doubtful/Loss																	—
Total	$	278	$	—	$	—	$	—	$	—	$	89	$	337,618	$	7,238	$	345,223
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	32	$	—	$	32

Consumer loans:
Other risk ratings
Pass	$	9,305	$	30,615	$	8,361	$	7,941	$	6,856	$	10,413	$	618	$	—	$	74,109
Special Mention	—		—		52		131		60		72		20		—		335
Substandard	—		85		177		157		3		146		2		—		570
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	9,305	$	30,700	$	8,590	$	8,229	$	6,919	$	10,631	$	640	$	—	$	75,014
Current period gross write-offs	$	76	$	67	$	—	$	60	$	28	$	15	$	4	$	—	$	250

18

	Term Loans Amortized Cost Basis by Origination Year – As of March 31, 2024
(in thousands)	2024		2023		2022		2021		2020		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial and industrial loans:
Commercial and industrial risk ratings
Pass	$	17,591	$	62,336	$	70,850	$	46,756	$	7,801	$	15,418	$	316,769	$	246	$	537,767
Special Mention	—		—		743		156		86		—		2,046		—		3,031
Substandard	—		—		2,082		768		83		721		5,255		73		8,982
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	17,591	$	62,336	$	73,675	$	47,680	$	7,970	$	16,139	$	324,070	$	319	$	549,780
Current period gross write-offs	$	10	$	—	$	—	$	—	$	—	$	—	$	120	$	—	$	130

Construction loans:
Construction risk ratings
Pass	$	1,979	$	71,893	$	141,212	$	89,345	$	22,345	$	10,574	$	—	$	—	$	337,348
Special Mention	—		—		11,569		—		—		—		—		—		11,569
Substandard	—		—		—		—		—		64		—		—		64
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	1,979	$	71,893	$	152,781	$	89,345	$	22,345	$	10,638	$	—	$	—	$	348,981
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Agriculture production loans:
Agriculture production risk ratings
Pass	$	586	$	1,378	$	2,857	$	1,539	$	349	$	8,897	$	120,410	$	—	$	136,016
Special Mention	—		33		—		—		—		—		6,928		—		6,961
Substandard	—		—		164		490		152		—		1,376		—		2,182
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	586	$	1,411	$	3,021	$	2,029	$	501	$	8,897	$	128,714	$	—	$	145,159
Current period gross write-offs	$	—	$	—	$	173	$	—	$	—	$	—	$	664	$	—	$	837

Leases:
Lease risk ratings
Pass	$	9,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$9,250
Special Mention	—		—		—		—		—		—		—		—		—
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	9,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	9,250
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Total loans outstanding:
Risk ratings
Pass	$	110,305	$	602,614	$	1,253,568	$	1,187,550	$	552,432	$	1,874,983	$	1,024,222	$	10,620	$	6,616,294
Special Mention	—		103		22,367		20,325		3,508		45,722		15,817		231		108,073
Substandard	—		454		5,479		20,081		1,717		30,748		16,830		1,019		76,328
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	110,305	$	603,171	$	1,281,414	$	1,227,956	$	557,657	$	1,951,453	$	1,056,869	$	11,870	$	6,800,695
Current period gross write-offs	$	86	$	93	$	173	$	60	$	28	$	15	$	820	$	—	$	1,275

19

	Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2023
(in thousands)	2023		2022		2021		2020		2019		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial real estate:
CRE non-owner occupied risk ratings
Pass	$	180,326	$	413,863	$	290,210	$	137,656	$	206,408	$	792,875	$	141,686	$	—	$	2,163,024
Special Mention	—		1,329		—		5,281		17,093		14,174		1,247		—		39,124
Substandard	—		—		767		—		2,139		12,540		212		—		15,658
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	180,326	$	415,192	$	290,977	$	142,937	$	225,640	$	819,589	$	143,145	$	—	$	2,217,806
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
CRE owner occupied risk ratings
Pass	$	71,288	$	196,915	$	190,384	$	118,457	$	59,220	$	268,990	$	23,740	$	—	$	928,994
Special Mention	—		5,773		1,513		2,754		703		2,678		—		—		13,421
Substandard	—		2,972		7,835		—		111		3,107		—		—		14,025
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	71,288	$	205,660	$	199,732	$	121,211	$	60,034	$	274,775	$	23,740	$	—	$	956,440
Current period gross write-offs	$	—	$	—	$	—	$	1,380	$	—	$	2,228	$	29	$	—	$	3,637

Commercial real estate:
Multifamily risk ratings
Pass	$	28,445	$	177,032	$	279,660	$	89,106	$	104,108	$	225,446	$	33,470	$	—	$	937,267
Special Mention	—		—		11,914		—		—		321		—		—		12,235
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	28,445	$	177,032	$	291,574	$	89,106	$	104,108	$	225,767	$	33,470	$	—	$	949,502
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
Farmland risk ratings
Pass	$	21,729	$	46,398	$	37,134	$	16,006	$	16,780	$	41,663	$	50,857	$	—	$	230,567
Special Mention	—		2,170		5,802		51		261		734		—		—		9,018
Substandard	101		813		9,053		377		—		13,266		7,859		—		31,469
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	21,830	$	49,381	$	51,989	$	16,434	$	17,041	$	55,663	$	58,716	$	—	$	271,054
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Consumer loans:
SFR 1-4 1st DT liens risk ratings
Pass	$	135,741	$	189,920	$	260,870	$	125,081	$	29,568	$	126,975	$	—	$	4,079	$	872,234
Special Mention	71		—		—		—		—		1,948		—		27		2,046
Substandard	—		140		1,296		1,490		531		5,265		—		436		9,158
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	135,812	$	190,060	$	262,166	$	126,571	$	30,099	$	134,188	$	—	$	4,542	$	883,438
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

20

	Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2023
(in thousands)	2023		2022		2021		2020		2019		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Consumer loans:
SFR HELOCs and Junior Liens
Pass	$	297	$	—	$	—	$	—	$	—	$	96	$	343,698	$	6,444	$	350,535
Special Mention	—		—		—		—		—		—		2,274		138		2,412
Substandard	—		—		—		—		—		—		3,212		654		3,866
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	297	$	—	$	—	$	—	$	—	$	96	$	349,184	$	7,236	$	356,813
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	66	$	66

Consumer loans:
Other risk ratings
Pass	$	34,441	$	9,061	$	8,908	$	7,419	$	6,825	$	4,619	$	659	$	—	$	71,932
Special Mention	21		54		203		63		54		37		18		—		450
Substandard	87		183		164		30		116		52		3		—		635
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	34,549	$	9,298	$	9,275	$	7,512	$	6,995	$	4,708	$	680	$	—	$	73,017
Current period gross write-offs	$	376	$	82	$	—	$	36	$	39	$	9	$	16	$	—	$	558

Commercial and industrial loans:
Commercial and industrial risk ratings
Pass	$	70,930	$	83,184	$	51,455	$	9,504	$	10,193	$	7,636	$	340,858	$	318	$	574,078
Special Mention	33		663		237		83		—		178		1,126		—		2,320
Substandard	—		2,014		782		103		4		762		6,318		74		10,057
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	70,963	$	85,861	$	52,474	$	9,690	$	10,197	$	8,576	$	348,302	$	392	$	586,455
Current period gross write-offs	$	153	$	287	$	240	$	2,285	$	—	$	—	$	896	$	18	$	3,879

Construction loans:
Construction risk ratings
Pass	$	56,378	$	136,294	$	85,144	$	47,632	$	4,583	$	6,518	$	—	$	—	$	336,549
Special Mention	—		10,582		—		—		—		—		—		—		10,582
Substandard	—		—		—		—		67		—		—		—		67
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	56,378	$	146,876	$	85,144	$	47,632	$	4,650	$	6,518	$	—	$	—	$	347,198
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Agriculture production loans:
Agriculture production risk ratings
Pass	$	945	$	2,749	$	1,595	$	396	$	620	$	8,491	$	114,935	$	—	$	129,731
Special Mention	—		183		543		176		—		—		11,302		—		12,204
Substandard	—		—		—		—		—		—		2,562		—		2,562
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	945	$	2,932	$	2,138	$	572	$	620	$	8,491	$	128,799	$	—	$	144,497
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

21

	Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2023
(in thousands)	2023		2022		2021		2020		2019		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Leases:
Lease risk ratings
Pass	$	8,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	8,250
Special Mention	—		—		—		—		—		—		—		—		—
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	8,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	8,250
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Total loans outstanding:
Risk ratings
Pass	$	608,770	$	1,255,416	$	1,205,360	$	551,257	$	438,305	$	1,483,309	$	1,049,903	$	10,841	$	6,603,161
Special Mention	125		20,754		20,212		8,408		18,111		20,070		15,967		165		103,812
Substandard	188		6,122		19,897		2,000		2,968		34,992		20,166		1,164		87,497
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	609,083	$	1,282,292	$	1,245,469	$	561,665	$	459,384	$	1,538,371	$	1,086,036	$	12,170	$	6,794,470
Current period gross write-offs	$	529	$	369	$	240	$	3,701	$	39	$	2,237	$	941	$	84	$	8,140

The following table shows the ending balance of current and past due originated loans by loan category as of the date indicated:

	Analysis of Past Due Loans - As of March 31, 2024
(in thousands)	30-59 days		60-89 days		> 90 days		Total Past Due Loans		Current		Total
Commercial real estate:
CRE non-owner occupied	$	1,182	$	232	$	3,104	$	4,518	$	2,216,050	$	2,220,568
CRE owner occupied	1,803		32		244		2,079		972,889		974,968
Multifamily	—		—		—		—		982,290		982,290
Farmland	—		—		4,608		4,608		261,334		265,942
Total commercial real estate loans	2,985		264		7,956		11,205		4,432,563		4,443,768
Consumer:
SFR 1-4 1st DT liens	141		6		534		681		882,839		883,520
SFR HELOCs and junior liens	—		282		572		854		344,369		345,223
Other	76		—		84		160		74,854		75,014
Total consumer loans	217		288		1,190		1,695		1,302,062		1,303,757
Commercial and industrial	482		352		1,270		2,104		547,676		549,780
Construction	52		—		—		52		348,929		348,981
Agriculture production	—		—		1,376		1,376		143,783		145,159
Leases	—		42		—		42		9,208		9,250
Total	$	3,736	$	946	$	11,792	$	16,474	$	6,784,221	$	6,800,695

22

	Analysis of Past Due Loans - As of December 31, 2023
(in thousands)	30-59 days		60-89 days		> 90 days		Total Past Due Loans		Current		Total
Commercial real estate:
CRE non-owner occupied	$	3,876	$	—	$	1,382	$	5,258	$	2,212,548	$	2,217,806
CRE owner occupied	34		—		247		281		956,159		956,440
Multifamily	—		—		—		—		949,502		949,502
Farmland	635		3,798		2,052		6485		264,569		271,054
Total commercial real estate loans	4,545		3,798		3,681		12,024		4,382,778		4,394,802
Consumer:
SFR 1-4 1st DT liens	141		1,449		490		2,080		881,358		883,438
SFR HELOCs and junior liens	16		—		623		639		356,174		356,813
Other	148		40		30		218		72,799		73,017
Total consumer loans	305		1,489		1,143		2,937		1,310,331		1,313,268
Commercial and industrial	244		605		1,654		2,503		583,952		586,455
Construction	—		—		—		—		347,198		347,198
Agriculture production	593		878		33		1,504		142,993		144,497
Leases	447		—		—		447		7,803		8,250
Total	$	6,134	$	6,770	$	6,511	$	19,415	$	6,775,055	$	6,794,470

The following table shows the ending balance of non accrual loans by loan category as of the date indicated:

	Non Accrual Loans
	As of March 31, 2024						As of December 31, 2023
(in thousands)	Non accrual with no allowance for credit losses		Total non accrual		Past due 90 days or more and still accruing		Non accrual with no allowance for credit losses		Total non accrual		Past due 90 days or more and still accruing
Commercial real estate:
CRE non-owner occupied	$	4,113	$	4,113	$	—	$	2,024	$	2,024	$	—
CRE owner occupied	3,905		3,905		—		3,994		3,994		—
Multifamily	—		—		—		—		—		—
Farmland	8,926		13,780		—		5,996		14,484		—
Total commercial real estate loans	16,944		21,798		—		12,014		20,502		—
Consumer:
SFR 1-4 1st DT liens	4,821		5,094		—		2,808		2,811		—
SFR HELOCs and junior liens	3,110		3,403		—		3,281		3,571		—
Other	64		99		—		39		105		—
Total consumer loans	7,995		8,596		—		6,128		6,487		—
Commercial and industrial	1,535		2,301		107		1,379		2,503		10
Construction	64		64		—		67		67		—
Agriculture production	311		1,376		—		—		2,322		—
Leases	—		—		—		—		—		—
Sub-total	26,849		34,135		107		19,588		31,881		10
Less: Guaranteed loans	(801)		(872)		—		(766)		(878)
Total, net	$	26,048	$	33,263	$	107	$	18,822	$	31,003	$	10

Interest income on non accrual loans that would have been recognized during the three months ended March 31, 2024 and 2023, if all such loans had been current in accordance with their original terms, totaled $0.85 million and $0.32 million, respectively. Interest income actually recognized on these originated loans during the three months ended March 31, 2024 and 2023 was $0.1 million and $0.02 million, respectively.

23

The following tables present the amortized cost basis of collateral dependent loans by class of loans as of the following periods:

	As of March 31, 2024
(in thousands)	Retail		Office		Warehouse		Other		Multifamily		Farmland		SFR-1st Deed		SFR-2nd Deed		Automobile/Truck		A/R and Inventory		Equipment		Total
Commercial real estate:
CRE non-owner occupied	$	2,459	$	381	$	506	$	767	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	4,113
CRE owner occupied	593		—		293		3,019		—		—		—		—		—		—		—		3,905
Multifamily	—		—		—		—		—		—		—		—		—		—		—		—
Farmland	—		—		—		—		—		13,780		—		—		—		—		—		13,780
Total commercial real estate loans	3,052		381		799		3,786		—		13,780		—		—		—		—		—		21,798
Consumer:
SFR 1-4 1st DT liens	—		—		—		—		—		—		5,089		—		—		—		—		5,089
SFR HELOCs and junior liens	—		—		—		—		—		—		1,403		1,739		—		—		—		3,142
Other	—		—		—		—		—		—		—		—		89		—		—		89
Total consumer loans	—		—		—		—		—		—		6,492		1,739		89		—		—		8,320
Commercial and industrial	—		—		—		—		—		—		—		—		—		1,294		807		2,101
Construction	—		—		—		—		—		—		64		—		—		—		—		64
Agriculture production	—		—		—		1,376		—		—		—		—		—		—		—		1,376
Leases	—		—		—		—		—		—		—		—		—		—		—		—
Total	$	3,052	$	381	$	799	$	5,162	$	—	$	13,780	$	6,556	$	1,739	$	89	$	1,294	$	807	$	33,659

	As of December 31, 2023
(in thousands)	Retail		Office		Warehouse		Other		Multifamily		Farmland		SFR -1st Deed		SFR -2nd Deed		Automobile/Truck		A/R and Inventory		Equipment		Total
Commercial real estate:
CRE non-owner occupied	$	124	$	615	$	519	$	766	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	2,024
CRE owner occupied	614		—		297		3,083		—		—		—		—		—		—		—		3,994
Multifamily	—		—		—		—		—		—		—		—		—		—		—		—
Farmland	—		—		—		635		—		13,849		—		—		—		—		—		14,484
Total commercial real estate loans	738		615		816		4,484		—		13,849		—		—		—		—		—		20,502
Consumer:
SFR 1-4 1st DT liens	—		—		—		—		—		—		2,808		—		—		—		—		2,808
SFR HELOCs and junior liens	—		—		—		—		—		—		1,816		1,467		—		—		—		3,283
Other	—		—		—		—		—		—		—		—		95		—		—		95
Total consumer loans	—		—		—		—		—		—		4,624		1,467		95		—		—		6,186
Commercial and industrial	—		—		—		—		—		—		—		—		—		1,712		791		2,503
Construction	—		—		—		—		—		—		67		—		—		—		—		67
Agriculture production	—		—		—		2,288		—		—		—		—		—		—		33		2,321
Leases	—		—		—		—		—		—		—		—		—		—		—		—
Total	$	738	$	615	$	816	$	6,772	$	—	$	13,849	$	4,691	$	1,467	$	95	$	1,712	$	824	$	31,579

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Modifications to borrowers experiencing financial difficulty may include interest rate reductions, principal or interest forgiveness, forbearances, term extensions, and other actions intended to minimize economic loss and to avoid foreclosure or repossession of collateral.

The following tables show the amortized cost basis of loans that were both experiencing financial difficulty and modified during the periods presented. The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivables is also presented below.

	For the three months ended
	March 31, 2024						March 31, 2023
(in thousands)	Combination - Term Extension/Rate Change		Payment Delay/Term Extension		Total % of Loans Outstanding		Payment Delay/Term Extension		Total % of Loans Outstanding
CRE non-owner occupied	$	211	$	—	0.03	%	$	—	—	%
SFR HELOCs and junior liens	—		41		0.01		—		—
Commercial and industrial	—		516		0.07		177		0.03
Total	$	211	$	557	0.11	%	$	177	0.03	%

The following table presents the financial effect of loan modifications made to borrowers experiencing financial difficulty during the quarter ended March 31, 2024.

Modification Type	Loan Type	Financial Effect
Combination - Term extension / rate change	CRE non-owner occupied	Added 120 months to the life of the loan; converted from variable to fixed interest rate
Payment delay / term extension	SFR HELOCs and junior liens	Added 60 months to the life of the loan
Payment delay / term extension	Commercial and industrial	Added 66 months to the life of the loan
Payment delay / term extension	Commercial and industrial	Added 12 months to the life of the loan

The following table presents the financial effect of loan modifications made to borrowers experiencing financial difficulty during the quarter ended March 31, 2023.

Modification Type	Loan Type	Financial Effect
Payment delay / term extension	Commercial and industrial	Added 12 months to the life of the loan to delay balloon repayment

During the quarters ended March 31, 2024 and March 31, 2023, respectively, there were no loans with payment defaults by borrowers experiencing financial difficulty which had material modifications in rate, term or principal forgiveness during the twelve months prior to default.

Note 5 - Leases

The Company records a ROUA on the consolidated balance sheets for those leases that convey rights to control use of identified assets for a period of time in exchange for consideration. The Company also records a lease liability on the consolidated balance sheets for the present value of future payment commitments. All of the Company’s leases are comprised of operating leases in which the Company is lessee of real estate property for branches, ATM locations, and general administration and operations. The Company has elected not to include short-term leases (i.e. leases with initial terms of 12 month or less) within the ROUA and lease liability. Known or determinable adjustments to the required minimum future lease payments were included in the calculation of the Company’s ROUA and lease liability. Adjustments to the required minimum future lease payments that are variable and will not be determinable until a future period, such as changes in the consumer price index, are included as variable lease costs. Additionally, expected variable payments for common area maintenance, taxes and insurance were unknown and not determinable at lease commencement and therefore, were not included in the determination of the Company’s ROUA or lease liability.

The value of the ROUA and lease liability is impacted by the amount of the periodic payment required, length of the lease term, and the discount rate used to calculate the present value of the minimum lease payments. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. Topic 842 requires the use of the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception, on a collateralized basis, over a similar term. The lease liability is reduced based on the discounted present value of remaining payments as of each reporting period. The ROUA value is measured using the amount of lease liability and adjusted for prepaid or accrued lease payments, remaining lease incentives, unamortized direct costs (if any), and impairment (if any).

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The following table presents the components of lease expense for the periods ended:

	Three months ended March 31,
(in thousands)	2024		2023
Operating lease cost	$	1,434	$	1,609
Short-term lease cost	52		118
Variable lease cost	13		12
Sublease income	—		—
Total lease cost	$	1,499	$	1,739

The following table presents supplemental cash flow information related to leases for the periods ended:

	Three months ended March 31,
(in thousands)	2024		2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	1,568	$	1,653
ROUA obtained in exchange for operating lease liabilities	$	1,327	$	4,484

The following table presents the weighted average operating lease term and discount rate as of the period ended:

	March 31,
	2024		2023
Weighted-average remaining lease term (years)	7.9		8.3
Weighted-average discount rate	3.42	%	3.27	%

At March 31, 2024, future expected operating lease payments are as follows:

(in thousands)
Periods ending December 31,
2024	$	4,376
2025	5,337
2026	4,799
2027	4,114
2028	3,061
Thereafter	10,973
	32,660
Discount for present value of expected cash flows	(4,361)
Lease liability at March 31, 2024	$	28,299

Note 6 - Deposits

A summary of the balances of deposits follows:

(in thousands)	March 31, 2024		December 31, 2023
Noninterest-bearing demand	$	2,600,448	$	2,722,689
Interest-bearing demand	1,742,875		1,731,814
Savings	2,672,537		2,682,068
Time certificates, $250,000 or more	375,222		250,180
Other time certificates	596,576		447,287
Total deposits	$	7,987,658	$	7,834,038

Certificate of deposit balances of $100.0 million and $50.0 million from the State of California were included in time certificates, over $250,000, at March 31, 2024 and December 31, 2023, respectively. The Company participates in a deposit program offered by the State of California whereby the State may make deposits at the Company’s request subject to collateral and credit worthiness constraints. The negotiated rates on these State deposits are generally more favorable than other wholesale funding sources available to the Company.

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Overdrawn deposit balances of $1.7 million and $1.8 million were classified as consumer loans at March 31, 2024 and December 31, 2023, respectively.

Note 7 - Other Borrowings

A summary of the balances of other borrowings follows:

	March 31, 2024		December 31, 2023
(in thousands)
Term borrowing at FHLB, fixed rate of 4.75%, payable on April 8, 2024	$	200,000	$	200,000
Overnight borrowing at FHLB, fixed rate of 5.69%, payable on April 1, 2024	167,000		—
Overnight borrowing at FHLB, fixed rate of 5.70%, payable on January 2, 2024	—		400,000
Other collateralized borrowings, fixed rate, as of March 31, 2024 and December 31, 2023 of 0.05%, payable on April 1, 2024 and January 2, 2024, respectively	25,409		32,582
Total other borrowings	$	392,409	$	632,582

Note 8 - Junior Subordinated Debt

The following table summarizes the terms and recorded balances of each debenture as of the date indicated:

(in thousands)				Coupon Rate (Variable) 3 mo. SOFR +		As of March 31, 2024				As of December 31, 2023
Subordinated Debt Series	Maturity Date	Face Value				Current Coupon Rate		Recorded Book Value		Recorded Book Value
TriCo Cap Trust I	10/7/2033	$	20,619	3.05	%	8.63	%	$	20,619	$	20,619
TriCo Cap Trust II	7/23/2034	20,619		2.55	%	8.13	%	20,619		20,619
North Valley Trust II	4/24/2033	6,186		3.25	%	8.82	%	5,629		5,602
North Valley Trust III	7/23/2034	5,155		2.80	%	8.38	%	4,495		4,472
North Valley Trust IV	3/15/2036	10,310		1.33	%	6.92	%	7,673		7,615
VRB Subordinated	3/29/2029	16,000		3.52	%	9.08	%	16,953		17,000
VRB Subordinated - 5%	8/27/2035	20,000		Fixed		5.00	%	25,132		25,172
		$	98,889					$	101,120	$	101,099

The VRB - 5% Subordinated Debt issuance is fixed at 5.0% through August 27, 2025, then will have a floating rate of 90-day average SOFR plus 4.9% until maturity.

Note 9 - Commitments and Contingencies

The following table presents a summary of the Bank’s commitments and contingent liabilities:

(in thousands)	March 31, 2024		December 31, 2023
Financial instruments whose amounts represent risk:
Commitments to extend credit:
Commercial loans	$	793,157	$	788,742
Consumer loans	642,028		652,110
Real estate mortgage loans	447,443		453,647
Real estate construction loans	324,254		331,178
Standby letters of credit	41,912		38,449
Deposit account overdraft privilege	129,273		121,539

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Note 10 - Shareholders’ Equity

Dividends Paid

The Bank paid to the Company cash dividends in the aggregate amounts of $20.4 million and $18.2 million during the three months ended March 31, 2024 and 2023, respectively. The Bank is regulated by the FDIC and the DFPI. Absent approval from the Commissioner of the DFPI, California banking laws generally limit the Bank’s ability to pay dividends to the lesser of (1) retained earnings or (2) net income for the last three fiscal years, less cash distributions paid during such period.

Stock Repurchase Plan

On February 25, 2021, the Board of Directors authorized the repurchase of up to 2.0 million shares of the Company's common stock (the 2021 Repurchase Plan), which approximated 6.7% of the shares outstanding as of the approval date. The actual timing of any share repurchases can be determined by the Company's management and therefore the total value of the shares to be purchased under the 2021 Repurchase Plan is subject to change. The 2021 Repurchase Plan has no expiration date (in accordance with applicable laws and regulations). During the three months ended March 31, 2024 and 2023, the Company repurchased 99,332 and 150,000 shares with market values of $3.4 million and $7.0 million, respectively.

Stock Repurchased Under Equity Compensation Plans

The Company's shareholder-approved equity compensation plans permit employees to tender recently vested shares in lieu of cash for the payment of exercise price, if applicable, and the tax withholding on such shares. During the three months ended March 31, 2024 and 2023, exercising option holders tendered zero shares, respectively, of the Company’s common stock in connection with option exercises. Employees also tendered zero and 12,381 shares in connection with the tax withholding requirements of other share-based awards during the three months ended March 31, 2024 and 2023, respectively. In total, shares of the Company's common stock tendered had market values of zero and $0.6 million during the quarters ended March 31, 2024 and 2023, respectively. The tendered shares were retired. The market value of tendered shares is the last market trade price at closing on the day an option is exercised or the other share-based award vests. Stock repurchased under equity incentive plans are not included in the total of stock repurchased under the 2021 Stock Repurchase Plans.

Note 11 - Stock Options and Other Equity-Based Incentive Instruments

On April 16, 2019, the Board of Directors adopted the 2019 Equity Incentive Plan (2019 Plan) which was approved by shareholders on May 21, 2019. The 2019 Plan allows for up to 1,500,000 shares to be issued in connection with equity-based incentives. The Company’s 2009 Equity Incentive Plan (2009 Plan) expired on March 26, 2019. While no new awards can be granted under the 2009 Plan, existing grants continue to be governed by the terms, conditions and procedures set forth in any applicable award agreement.

Stock option activity during the three months ended March 31, 2024, is summarized in the following table:

	Number of Shares	Weighted Average Exercise Price
Outstanding at December 31, 2023	7,500	$	23.21
Options granted	—	—
Options exercised	—	—
Options forfeited	—	—
Outstanding at March 31, 2024	7,500	$	23.21

The following table shows the number, weighted-average exercise price, intrinsic value, and weighted average remaining contractual life of options exercisable, options not yet exercisable and total options outstanding as of March 31, 2024:

	Currently Exercisable		Currently Not Exercisable		Total Outstanding
Number of options	7,500		—		7,500
Weighted average exercise price	$	23.21	$	—	$	23.21
Intrinsic value (in thousands)	$	102	$	—	$	102
Weighted average remaining contractual term (yrs.)	0.5		n/a		0.5

As of March 31, 2024, all options outstanding are fully vested and are expected to be exercised prior to expiration. The Company did not modify any option grants during the three months ended March 31, 2024 or 2023.

Activity related to restricted stock unit awards during the three months ended March 31, 2024 is summarized in the following table:

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	Service Condition Vesting RSUs	Market Plus Service Condition Vesting RSUs
Outstanding at December 31, 2023	144,487	123,102
RSUs granted	65,167	56,516
RSUs added through dividend and performance credits	1,968	—
RSUs released	—	—
RSUs forfeited	(1,063)	(1,204)
Outstanding at March 31, 2024	210,559	178,414

The 210,559 of service condition vesting RSUs outstanding as of March 31, 2024 include a feature whereby each RSU outstanding is credited with a dividend amount equal to any common stock cash dividend declared and paid, and the credited amount is divided by the closing price of the Company’s stock on the dividend payable date to arrive at an additional amount of RSUs outstanding under the original grant. The dividend credits follow the same vesting requirements as the RSU awards and are not considered participating securities. The 210,559 of service condition vesting RSUs outstanding as of March 31, 2024 are expected to vest, and be released, on a weighted-average basis, over the next 2.2 years. The Company expects to recognize $5.4 million of pre-tax compensation costs related to these service condition vesting RSUs between March 31, 2024 and their vesting dates. The Company did not modify any service condition vesting RSUs during the three months ended March 31, 2024 or 2023.

The 178,414 of market plus service condition vesting RSUs outstanding as of March 31, 2024 are expected to vest, and be released, on a weighted-average basis, over the next 2.3 years. The Company expects to recognize $3.0 million of pre-tax compensation costs related to these RSUs between March 31, 2024 and their vesting dates. As of March 31, 2024, the number of market plus service condition vesting RSUs outstanding that will actually vest, and be released, may be reduced to zero or increased to 267,621 depending on the total return of the Company’s common stock versus the total return of an index of bank stocks from the grant date to the vesting date. The Company did not modify any market plus service condition vesting RSUs during 2023 or during the three months ended March 31, 2024.

Note 12 - Non-interest Income and Expense

The following table summarizes the Company’s non-interest income for the periods indicated:

	Three months ended March 31,
(in thousands)	2024		2023
ATM and interchange fees	$	6,169	$	6,344
Service charges on deposit accounts	4,663		3,431
Other service fees	1,366		1,166
Mortgage banking service fees	428		465
Change in value of mortgage servicing rights	11		(209)
Total service charges and fees	12,637		11,197
Increase in cash value of life insurance	803		802
Asset management and commission income	1,128		934
Gain on sale of loans	261		206
Lease brokerage income	161		98
Sale of customer checks	312		288
Loss on sale of investment securities	—		(164)
(Loss) gain on marketable equity securities	(28)		42
Other	497		232
Total other non-interest income	3,134		2,438
Total non-interest income	$	15,771	$	13,635

29

The components of non-interest expense were as follows:

	Three months ended March 31,
(in thousands)	2024		2023
Base salaries, net of deferred loan origination costs	$	24,020	$	23,000
Incentive compensation	3,257		2,895
Benefits and other compensation costs	7,027		6,668
Total salaries and benefits expense	34,304		32,563
Occupancy	3,951		4,160
Data processing and software	5,107		4,032
Equipment	1,356		1,383
Intangible amortization	1,030		1,656
Advertising	762		759
ATM and POS network charges	1,661		1,709
Professional fees	1,340		1,589
Telecommunications	511		595
Regulatory assessments and insurance	1,251		792
Postage	308		299
Operational losses	352		435
Courier service	480		339
(Gain) on sale or acquisition of foreclosed assets	(38)		—
Gain on disposal of fixed assets	5		—
Other miscellaneous expense	4,124		3,483
Total other non-interest expense	22,200		21,231
Total non-interest expense	$	56,504	$	53,794

Note 13 - Earnings Per Share

Basic earnings per share represent income available to common shareholders divided by the weighted-average number of common shares outstanding during the period. Diluted earnings per share reflect additional common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustments to income that would result from assumed issuance. Potential common shares that may be issued by the Company relate to outstanding stock options and restricted stock units (RSUs), and are determined using the treasury stock method. Earnings per share have been computed based on the following:

	Three months ended March 31,
(in thousands)	2024		2023
Net income	$	27,749	$	35,833
Average number of common shares outstanding	33,245		33,296
Effect of dilutive stock options and restricted stock	125		142
Average number of common shares outstanding used to calculate diluted earnings per share	33,370		33,438
Options excluded from diluted earnings per share because of their antidilutive effect	—		—

Note 14 – Comprehensive Income (Loss)

Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as unrealized gains and losses on available-for-sale securities, are reported as a separate component of the equity section of the balance sheet identified as accumulated other comprehensive income (AOCI), such items, along with net income, are components of other comprehensive income (loss) (OCI).

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The components of other comprehensive income (loss) and related tax effects are as follows:

	Three months ended March 31,
(in thousands)	2024		2023
Unrealized holding gains (losses) on available for sale securities before reclassifications	$	(15,899)	$	34,540
Amounts reclassified out of AOCI:
Realized loss on debt securities	—		164
Unrealized holding gains (losses) on available for sale securities after reclassifications	(15,899)		34,704
Tax effect	4,701		(10,260)
Unrealized holding gains (losses) on available for sale securities, net of tax	(11,198)		24,444
Change in unfunded status of the supplemental retirement plans before reclassifications	459		114
Amounts reclassified out of AOCI:
Amortization of prior service cost	—		—
Amortization of actuarial losses	(459)		(114)
Total amounts reclassified out of accumulated other comprehensive loss	(459)		(114)
Change in unfunded status of the supplemental retirement plans after reclassifications	—		—
Tax effect	—		—
Change in unfunded status of the supplemental retirement plans, net of tax	—		—
Change in joint beneficiary agreement liability before reclassifications	—		—
Tax effect	—		—
Change in joint beneficiary agreement liability before reclassifications, net of tax	—		—
Total other comprehensive income (loss)	$	(11,198)	$	24,444

The components of accumulated other comprehensive loss, included in shareholders’ equity, are as follows:

(in thousands)	March 31, 2024		December 31, 2023
Net unrealized loss on available for sale securities	$	(247,720)	$	(231,821)
Tax effect	73,235		68,534
Unrealized holding loss on available for sale securities, net of tax	(174,485)		(163,287)
Unfunded status of the supplemental retirement plans	13,527		13,527
Tax effect	(3,999)		(3,999)
Unfunded status of the supplemental retirement plans, net of tax	9,528		9,528
Joint beneficiary agreement liability	590		590
Tax effect	—		—
Joint beneficiary agreement liability, net of tax	590		590
Accumulated other comprehensive loss	$	(164,367)	$	(153,169)

Note 15 - Fair Value Measurement

The Company utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. In estimating fair value, the Company utilizes valuation techniques that are consistent with the market approach, income approach, and/or the cost approach. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset and the risk of nonperformance. Marketable equity securities, debt securities available-for-sale, loans held for sale, and mortgage servicing rights are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may be required to record at fair value other assets on a nonrecurring basis, such loans held for investment and certain other assets. These nonrecurring fair value adjustments typically involve application impairment write-downs of individual assets.

The Company groups assets and liabilities at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observable nature of the assumptions used to determine fair value. These levels are:

Level 1 - Valuation is based upon quoted prices for identical instruments traded in active markets.

Level 2 - Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in

31

markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market.

Level 3 - Valuation is generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.

Marketable equity securities and debt securities available for sale - Marketable equity securities and debt securities available for sale are recorded at fair value on a recurring basis. Fair value measurement is based upon quoted prices, if available. If quoted prices are not available, fair values are measured using independent pricing models or other model-based valuation techniques such as the present value of future cash flows, adjusted for the security’s credit rating, prepayment assumptions and other factors such as credit loss assumptions. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange, U.S. Treasury securities that are traded by dealers or brokers in active over-the-counter markets and money market funds. Level 2 securities include mortgage-backed securities issued by government sponsored entities, municipal bonds and corporate debt securities. The Company had no securities classified as Level 3 during any of the periods covered in these consolidated financial statements.

Loans held for sale - Loans held for sale are carried at the lower of cost or fair value. The fair value of loans held for sale is based on what secondary markets are currently offering for loans with similar characteristics. As such, we classify those loans subjected to recurring fair value adjustments as Level 2.

Individually evaluated loans - Loans are not recorded at fair value on a recurring basis. However, from time to time, certain loans have individual risk characteristics not consistent with a pool of loans and is individually evaluated for credit reserves. Loans for which it is probable that payment of interest and principal will not be made in accordance with the original contractual terms of the loan agreement are typically individually evaluated. The fair value of these loans are estimated using one of several methods, including collateral value, fair value of similar debt, enterprise value, liquidation value and discounted cash flows. Those loans not requiring an allowance represent loans for which the fair value of the expected repayments or collateral exceed the recorded investments in such loans. Loans where an allowance is established based on the fair value of collateral require classification in the fair value hierarchy. When the fair value of the collateral is based on an observable market price or a current appraised value which uses substantially observable data, the Company records the loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value, or the appraised value contains a significant unobservable assumption, such as deviations from comparable sales, and there is no observable market price, the Company records the loan as nonrecurring Level 3.

Foreclosed assets - Foreclosed assets include assets acquired through, or in lieu of, loan foreclosure. Foreclosed assets are held for sale and are initially recorded at fair value at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, management periodically performs valuations and the assets are carried at the lower of carrying amount or fair value less cost to sell. When the fair value of foreclosed assets is based on an observable market price or a current appraised value which uses substantially observable data, the Company records the loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value, or the appraised value contains a significant unobservable assumption, such as deviations from comparable sales, and there is no observable market price, the Company records the foreclosed asset as nonrecurring Level 3. Revenue and expenses from operations and changes in the valuation allowance are included in other non-interest expense.

Mortgage servicing rights - Mortgage servicing rights are carried at fair value. A valuation model, which utilizes a discounted cash flow analysis using a discount rate and prepayment speed assumptions is used in the computation of the fair value measurement. While the prepayment speed assumption is currently quoted for comparable instruments, the discount rate assumption currently requires a significant degree of management judgment and is therefore considered an unobservable input. As such, the Company classifies mortgage servicing rights subjected to recurring fair value adjustments as Level 3.

The table below presents the recorded amount of assets and liabilities measured at fair value on a recurring basis (in thousands):

Fair value at March 31, 2024	Total		Level 1		Level 2		Level 3
Marketable equity securities	$	2,606	$	2,606	$	—	$	—
Debt securities available for sale:
Obligations of U.S. government corporations and agencies	1,170,192		—		1,170,192		—
Obligations of states and political subdivisions	234,177		—		234,177		—
Corporate bonds	5,746		—		5,746		—
Asset backed securities	359,673		—		359,673		—
Non-agency mortgage backed securities	304,100		—		304,100		—
Loans held for sale	1,346		—		1,346		—
Mortgage servicing rights	6,697		—		—		6,697
Total assets measured at fair value	$	2,084,537	$	2,606	$	2,075,234	$	6,697

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Fair value at December 31, 2023	Total		Level 1		Level 2		Level 3
Marketable equity securities	$	2,634	$	2,634	$	—	$	—
Debt securities available for sale:
Obligations of U.S. government corporations and agencies	1,221,737		—		1,221,737		—
Obligations of states and political subdivisions	236,375		—		236,375		—
Corporate bonds	5,602		—		5,602		—
Asset backed securities	355,281		—		355,281		—
Non-agency mortgage backed securities	333,509		—		333,509		—
Loans held for sale	458		—		458		—
Mortgage servicing rights	6,606		—		—		6,606
Total assets measured at fair value	$	2,162,202	$	2,634	$	2,152,962	$	6,606

Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally corresponds with the Company’s quarterly valuation process. There were no transfers between any levels during the three months ended March 31, 2024 or March 31, 2023, respectively.

The following table provides a reconciliation of assets and liabilities measured at fair value using significant unobservable inputs (Level 3) on a recurring basis during the time periods indicated. Had there been any transfer into or out of Level 3 during the time periods indicated, the amount included in the “Transfers into (out of) Level 3” column would represent the beginning balance of an item in the period (interim quarter) during which it was transferred (in thousands):

Three months ended March 31,	Beginning Balance		Transfers into (out of) Level 3	Change Included in Earnings		Issuances		Ending Balance
2024: Mortgage servicing rights	$	6,606	—	$	11	$	80	$	6,697
2023: Mortgage servicing rights	$	6,712	—	$	(209)	$	50	$	6,553

Three months ended March 31,

The key unobservable inputs used in determining the fair value of mortgage servicing rights are mortgage prepayment speeds and the discount rate used to discount cash projected cash flows. Generally, any significant increases in the mortgage prepayment speed and discount rate utilized in the fair value measurement of the mortgage servicing rights will result in a negative fair value adjustments (and decrease in the fair value measurement). Conversely, a decrease in the mortgage prepayment speed and discount rate will result in a positive fair value adjustment (and increase in the fair value measurement).

The following table presents quantitative information about recurring Level 3 fair value measurements at March 31, 2024 and December 31, 2023:

As of March 31, 2024:	Fair Value (in thousands)		Valuation Technique	Unobservable Inputs	Range, Weighted Average
Mortgage Servicing Rights	$	6,697	Discounted cash flow	Constant prepayment rate	6% - 11%; 6.4%
				Discount rate	10% - 14%; 12%
As of December 31, 2023:
Mortgage Servicing Rights	$	6,606	Discounted cash flow	Constant prepayment rate	6% - 12.8%; 7.0%
				Discount rate	10% - 14%; 12%

The tables below present the recorded investment in assets and liabilities measured at fair value on a nonrecurring basis, as of the dates indicated, that had a write-down or an additional allowance provided during the periods indicated (in thousands):

March 31, 2024	Total		Level 1	Level 2	Level 3
Fair value:
Collateral dependent loans	$	5,056	—	—	$	5,056
Foreclosed assets	831		—	—	831
Total assets measured at fair value	$	5,887	—	—	$	5,887

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December 31, 2023	Total		Level 1	Level 2	Level 3
Fair value:
Collateral dependent loans	$	4,175	—	—	$	4,175
Foreclosed assets	50		—	—	50
Total assets measured at fair value	$	4,225	—	—	$	4,225

The tables below present the gains (losses) resulting from non-recurring fair value adjustments of assets and liabilities for the periods indicated (in thousands):

	Three months ended March 31,
	2024		2023
Collateral dependent loans	$	128	$	(277)
Foreclosed assets	(224)		—
Total losses from non-recurring measurements	$	(96)	$	(277)

The individually evaluated loan amounts above represent collateral dependent loans that have been adjusted to fair value. When the Company identifies a collateral dependent loan with unique risk characteristics, the Company evaluates the need for an allowance using the current fair value of the collateral, less selling costs. Depending on the characteristics of a loan, the fair value of collateral is generally estimated by obtaining external appraisals. If the Company determines that the value of the loan is less than the recorded investment in the loan, the Company recognizes this impairment and adjust the carrying value of the loan to fair value through the allowance for credit losses. The loss represents charge-offs or impairments on collateral dependent loans for fair value adjustments based on the fair value of collateral. The carrying value of loans fully charged-off is zero.

The foreclosed assets amount above represents impaired real estate that has been adjusted to fair value. Foreclosed assets represent real estate which the Company has taken control of in partial or full satisfaction of loans. At the time of foreclosure, other real estate owned is recorded at fair value less costs to sell, which becomes the property’s new basis. Any write-downs based on the asset’s fair value at the date of acquisition are charged to the allowance for credit losses. After foreclosure, management periodically performs valuations such that the real estate is carried at the lower of its new cost basis or fair value, net of estimated costs to sell. Fair value adjustments on other real estate owned are recognized within net loss on real estate owned. The loss represents impairments on real estate owned for fair value adjustments based on the fair value of the real estate.

The Company’s property appraisals are primarily based on the sales comparison approach and income approach methodologies, which consider recent sales of comparable properties, including their income generating characteristics, and then make adjustments to reflect the general assumptions that a market participant would make when analyzing the property for purchase. These adjustments may increase or decrease an appraised value and can vary significantly depending on the location, physical characteristics and income producing potential of each property. Additionally, the quality and volume of market information available at the time of the appraisal can vary from period to period and cause significant changes to the nature and magnitude of comparable sale adjustments. Given these variations, comparable sale adjustments are generally not a reliable indicator for how fair value will increase or decrease from period to period. Under certain circumstances, management discounts are applied based on specific characteristics of an individual property.

The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at March 31, 2024:

March 31, 2024	Fair Value (in thousands)		Valuation Technique	Unobservable Inputs	Range, Weighted Average
Collateral dependent loans	$	5,056	Sales comparison approach Income approach	Adjustment for differences between comparable sales; Capitalization rate	Not meaningful N/A
Foreclosed assets (Residential real estate)	$	831	Sales comparison approach	Adjustment for differences between comparable sales	Not meaningful N/A

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The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at December 31, 2023:

December 31, 2023	Fair Value (in thousands)		Valuation Technique	Unobservable Inputs	Range, Weighted Average
Collateral dependent loans	$	4,175	Sales comparison approach Income approach	Adjustment for differences between comparable sales; Capitalization rate	Not meaningful N/A
Foreclosed assets (Residential real estate)	$	50	Sales comparison approach	Adjustment for differences between comparable sales	Not meaningful N/A

Fair values for financial instruments are management’s estimates of the values at which the instruments could be exchanged in a transaction between willing parties. The Company uses the exit price notion when measuring the fair value of financial instruments. These estimates are subjective and may vary significantly from amounts that would be realized in actual transactions. In addition, other significant assets are not considered financial assets including, any mortgage banking operations, deferred tax assets, and premises and equipment. Further, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on the fair value estimates and have not been considered in any of these estimates.

	March 31, 2024				December 31, 2023
(in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial assets:
Level 1 inputs:
Cash and due from banks	$	73,322	$	73,322	$	81,626	$	81,626
Cash at Federal Reserve and other banks	9,514		9,514		17,075		17,075
Level 2 inputs:
Securities held to maturity	127,811		118,528		133,494		125,126
Restricted equity securities	17,250		N/A		17,250		n/a
Level 3 inputs:
Loans, net	6,676,301		6,291,078		6,672,948		6,278,577
Financial liabilities:
Level 2 inputs:
Deposits	7,987,658		7,982,067		7,834,038		7,828,554
Other borrowings	392,409		329,409		632,582		632,582
Level 3 inputs:
Junior subordinated debt	101,120		101,090		101,099		95,407

(in thousands)	Contract Amount		Fair Value		Contract Amount		Fair Value
Off-balance sheet:
Level 3 inputs:
Commitments	$	2,206,882	$	22,069	$	2,225,677	$	22,257
Standby letters of credit	41,912		419		38,449		385
Overdraft privilege commitments	129,273		1,293		121,539		1,215

Note 16 - Regulatory Matters

The Company is subject to various regulatory capital requirements administered by federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company must meet specific capital guidelines that involve quantitative measures of the Company’s assets, liabilities and certain off-balance-sheet items as calculated under regulatory accounting practices. The Company’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

Quantitative measures established by regulation to ensure capital adequacy require the Company to maintain minimum amounts and ratios

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(set forth in the table below) of total, Tier 1, and common equity Tier 1 capital to risk-weighted assets, and of Tier 1 capital to average assets. The following tables present actual and required capital ratios as of March 31, 2024 and December 31, 2023 for the Company and the Bank under applicable Basel III Capital Rules. The minimum capital amounts presented include the minimum required capital levels as of March 31, 2024 and December 31, 2023 based on the then phased-in provisions of the Basel III Capital Rules. Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules.

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized
As of March 31, 2024:	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(dollars in thousands)
Total Capital (to Risk Weighted Assets):
Consolidated	$	1,212,626	14.97	%	$	850,469	10.50	%	N/A		N/A
Tri Counties Bank	$	1,202,415	14.85	%	$	850,265	10.50	%	$	809,776	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,068,911	13.20	%	$	688,475	8.50	%	N/A		N/A
Tri Counties Bank	$	1,100,831	13.59	%	$	688,310	8.50	%	$	647,821	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,011,649	12.49	%	$	566,979	7.00	%	N/A		N/A
Tri Counties Bank	$	1,100,831	13.59	%	$	566,843	7.00	%	$	526,355	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	1,068,911	11.01	%	$	388,326	4.00	%	N/A		N/A
Tri Counties Bank	$	1,100,831	11.34	%	$	388,253	4.00	%	$	485,316	5.00	%

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized
As of December 31, 2023:	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(dollars in thousands)
Total Capital (to Risk Weighted Assets):
Consolidated	$	1,196,106	14.73	%	$	852,850	10.50	%	N/A		N/A
Tri Counties Bank	$	1,190,542	14.66	%	$	852,648	10.50	%	$	812,046	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,052,063	12.95	%	$	690,402	8.50	%	N/A		N/A
Tri Counties Bank	$	1,088,717	13.41	%	$	690,239	8.50	%	$	649,637	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	994,907	12.25	%	$	568,566	7.00	%	N/A		N/A
Tri Counties Bank	$	1,088,717	13.41	%	$	568,432	7.00	%	$	527,830	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	1,052,063	10.75	%	$	391,620	4.00	%	N/A		N/A
Tri Counties Bank	$	1,088,717	11.12	%	$	391,574	4.00	%	$	489,468	5.00	%

As of March 31, 2024 and December 31, 2023, capital levels at the Company and the Bank exceed all capital adequacy requirements under the Basel III Capital Rules. Also, at March 31, 2024 and December 31, 2023, the Bank’s capital levels exceeded the minimum amounts necessary to be considered well capitalized under the current regulatory framework for prompt corrective action.

The Basel III Capital Rules require for all banking organizations to maintain a capital conservation buffer above the minimum risk-based capital requirements in order to avoid certain limitations on capital distributions, stock repurchases and discretionary bonus payments to executive officers. The capital conservation buffer is exclusively composed of common equity tier 1 capital, and it applies to each of the risk-based capital ratios but not the leverage ratio. At March 31, 2024, the Company and the Bank are in compliance with the capital conservation buffer requirement.

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Item 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations

FORWARD-LOOKING STATEMENTS

Cautionary Statements Regarding Forward-Looking Information

The statements contained herein that are not historical facts are forward-looking statements based on management’s current expectations and beliefs concerning future developments and their potential effects on the Company. Such statements involve inherent risks and uncertainties, many of which are difficult to predict and are generally beyond our control. We caution readers that a number of important factors could cause actual results to differ materially from those expressed in, or implied or projected by, such forward-looking statements. These risks and uncertainties include, but are not limited to, the following: the conditions of the United States economy in general and the strength of the local economies in which we conduct operations; the impact of any future federal government shutdown and uncertainty regarding the federal government’s debt limit or changes in trade, monetary and fiscal policies and laws, including interest rate policies of the Board of Governors of the Federal Reserve System; the impacts of inflation, interest rate, market and monetary fluctuations on the Company's business condition and financial operating results; the impact of changes in financial services industry policies, laws and regulations; regulatory restrictions affecting our ability to successfully market and price our products to consumers; the risks related to the development, implementation, use and management of emerging technologies, including artificial intelligence and machine learning; extreme weather, natural disasters and other catastrophic events that may or may not be caused by climate change and their effects on the Company's customers and the economic and business environments in which the Company operates; the impact of a slowing U.S. economy, decreases in housing and commercial real estate prices, and potentially increased unemployment on the performance of our loan portfolio, the market value of our investment securities and possible other-than-temporary impairment of securities held by us due to changes in credit quality or rates; the availability of, and cost of, sources of funding and the demand for our products; adverse developments with respect to U.S. or global economic conditions and other uncertainties, including the impact of supply chain disruptions, commodities prices, inflationary pressures and labor shortages on the economic recovery and our business; the impacts of international hostilities, wars, terrorism or geopolitical events; adverse developments in the financial services industry generally such as the recent bank failures and any related impact on depositor behavior or investor sentiment; risks related to the sufficiency of liquidity; the possibility that our recorded goodwill could become impaired, which may have an adverse impact on our earnings and capital; the costs or effects of mergers, acquisitions or dispositions we may make, as well as whether we are able to obtain any required governmental approvals in connection with any such activities, or identify and complete favorable transactions in the future, and/or realize the anticipated financial and business benefits; the regulatory and financial impacts associated with exceeding $10 billion in total assets; the negative impact on our reputation and profitability in the event customers experience economic harm or in the event that regulatory violations are identified; the ability to execute our business plan in new markets; the future operating or financial performance of the Company, including our outlook for future growth and changes in the level and direction of our nonperforming assets and charge-offs; the appropriateness of the allowance for credit losses, including the assumptions made under our current expected credit losses model; any deterioration in values of California real estate, both residential and commercial; the effectiveness of the Company's asset management activities managing the mix of earning assets and in improving, resolving or liquidating lower-quality assets; the effect of changes in the financial performance and/or condition of our borrowers; changes in accounting standards and practices; changes in consumer spending, borrowing and savings habits; our ability to attract and maintain deposits and other sources of liquidity; the effects of changes in the level or cost of checking or savings account deposits on our funding costs and net interest margin; increasing noninterest expense and its impact on our financial performance; competition and innovation with respect to financial products and services by banks, financial institutions and non-traditional competitors including retail businesses and technology companies; the challenges of attracting, integrating and retaining key employees; the vulnerability of the Company's operational or security systems or infrastructure, the systems of third-party vendors or other service providers with whom the Company contracts, and the Company's customers to unauthorized access, computer viruses, phishing schemes, spam attacks, human error, natural disasters, power loss and data/security breaches and the cost to defend against and respond to such incidents; the impact of the 2023 cyber security ransomware incident on our operations and reputation; increased data security risks due to work from home arrangements and email vulnerability; failure to safeguard personal information, and any resulting litigation; the effect of a fall in stock market prices on our brokerage and wealth management businesses; the transition from the LIBOR to new interest rate benchmarks; the emergence or continuation of widespread health emergencies or pandemics; the costs and effects of litigation and of unexpected or adverse outcomes in such litigation; and our ability to manage the risks involved in the foregoing. There can be no assurance that future developments affecting us will be the same as those anticipated by management. Additional factors that could cause results to differ materially from those described above can be found in our Annual Report on Form 10-K for the year ended December 31, 2023, which has been filed with the Securities and Exchange Commission (the “SEC”) and all subsequent filings with the SEC under Sections 13(a), 13(c), 14, and 15(d) of the Securities Act of 1934, as amended. Such filings are also available in the “Investor Relations” section of our website, https://www.tcbk.com/investor-relations and in other documents we file with the SEC. Annualized, pro forma, projections and estimates are not forecasts and may not reflect actual results. We undertake no obligation (and expressly disclaim any such obligation) to update or alter our forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by law.

General

As TriCo Bancshares (referred to in this report as “we”, “our” or the “Company”) has not commenced any business operations independent of Tri Counties Bank (the “Bank”), the following discussion pertains primarily to the Bank. Average balances, including such balances used in calculating certain financial ratios, are generally comprised of average daily balances for the Company. Within Management’s Discussion and Analysis of Financial Condition and Results of Operations, interest income, net interest income, and net interest yield are generally presented on a FTE basis. The Company believes the use of these non-generally accepted accounting principles (non-GAAP) measures provides additional clarity in assessing its results, and the presentation of these measures on a FTE basis is a common practice within the banking industry. Interest income and net interest income are shown on a non-FTE basis in the Part I - Financial Information section of this Form 10-Q, and a reconciliation of the FTE and non-FTE presentations is provided below in the discussion of net interest income.

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Critical Accounting Policies and Estimates

The Company’s discussion and analysis of its financial condition and results of operations are based upon the Company’s consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these financial statements requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an on-going basis, the Company evaluates its estimates, including those that materially affect the financial statements and are related to the adequacy of the allowance for loan losses, investments, mortgage servicing rights, fair value measurements, retirement plans and intangible assets. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. A detailed discussion related to the Company’s accounting policies including those related to estimates on the allowance for credit losses related to loans and investment securities, and impairment of intangible assets, can be found in Note 1 of the consolidated financial statements included in the Company’s annual report on Form 10-K for the year ended December 31, 2023.

Geographical Descriptions

For the purpose of describing the geographical location of the Company’s operations, the Company has defined northern California as that area of California north of, and including, Stockton to the east and San Jose to the west; central California as that area of the state south of Stockton and San Jose, to and including, Bakersfield to the east and San Luis Obispo to the west; and southern California as that area of the state south of Bakersfield and San Luis Obispo.

Financial Highlights

Performance highlights and other developments for the Company as of or for the three months ended March 31, 2024, included the following:

•For the quarter ended March 31, 2024, the Company’s return on average assets was 1.13%, while the return on average equity was 9.50%; for the trailing quarter ended December 31, 2023, the Company’s return on average assets was 1.05%, while the return on average equity was 9.43%.

•Diluted earnings per share were $0.83 for the first quarter of 2024, compared to $0.78 for the trailing quarter and $1.07 during the first quarter of 2023.

•Net income was $27.7 million compared to $26.1 million in the trailing quarter; pre-tax pre-provision net revenue was $42.0 million compared to $42.4 million in the trailing quarter.

•Deposit balances increased $153.6 million or 7.8% (annualized) from the trailing quarter.

•The loan to deposit ratio decreased to 85.1% as of March 31, 2024, as compared to 86.7% for the trailing quarter end, as a result of deposit growth during the quarter.

•The efficiency ratio improved to 57.36% for the quarter ended March 31, 2024, as compared to 58.71% for the trailing quarter end, due to management's focus on expense control as well as the absence of non-recurring costs in the quarter.

•The provision for credit losses was approximately $4.3 million during the quarter ended March 31, 2024, as compared to $6.0 million during the trailing quarter end, reflecting the risks associated with general economic trends and forecasts.

•The allowance for credit losses (ACL) to total loans was 1.83% as of March 31, 2024, compared to 1.79% as of the trailing quarter end, and 1.69% as of March 31, 2023. Non-performing assets to total assets were 0.37% on March 31, 2024, as compared to 0.35% as of December 31, 2023, and 0.20% at March 31, 2023. At March 31, 2024, the ACL represented 363% of non-performing loans.

•Average yield on earning assets was 5.13%, an increase of 4 basis points over the 5.09% in the trailing quarter.

•Net interest margin was 3.68% in the recent quarter, narrowing 13 basis points from 3.81% in the trailing quarter; management expects that net interest margin will reach an inflection point in the second half of 2024.

•Non-interest bearing deposits averaged 33.8% of total deposits during the first quarter of 2024.

•The average cost of total deposits was 1.21%, an increase of 16 basis points as compared to 1.05% in the trailing quarter, and an increase of 96 basis points from 0.25% in the same quarter of the prior year; the Company's total cost of deposits have increased 117 basis points since FOMC rate actions began in March 2022, which translates to a cycle-to-date deposit beta of 22.3%.

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TRICO BANCSHARES

Financial Summary

(In thousands, except per share amounts; unaudited)

	Three months ended March 31,
	2024			2023
Net interest income	$	82,736		$	93,336
Provision for credit losses	(4,305)			(4,195)
Non-interest income	15,771			13,635
Non-interest expense	(56,504)			(53,794)
Provision for income taxes	(9,949)			(13,149)
Net income	$	27,749		$	35,833
Per Share Data:
Basic earnings per share	$	0.83		$	1.08
Diluted earnings per share	$	0.83		$	1.07
Dividends paid	$	0.33		$	0.30
Book value at period end	$	35.06		$	32.84
Average common shares outstanding	33,245			33,296
Average diluted common shares outstanding	33,370			33,438
Shares outstanding at period end	33,169			33,195
At period end:
Loans	$	6,800,695		$	6,422,421
Total investment securities	$	2,221,555		$	2,577,769
Total assets	$	9,813,767		$	9,842,394
Total deposits	$	7,987,658		$	8,025,865
Other borrowings	$	392,409		$	434,140
Shareholders’ equity	$	1,163,051		$	1,090,245
Financial Ratios:
During the period:
Return on average assets (annualized)	1.13		%	1.47		%
Return on average equity (annualized)	9.50		%	13.36		%
Net interest margin(1) (annualized)	3.68		%	4.20		%
Efficiency ratio	57.36		%	50.29		%
Average equity to average assets	11.92		%	11.00		%
At end of period:
Equity to assets	11.85		%	11.08		%
Total capital to risk-adjusted assets	14.97		%	14.50		%

(1) Fully Taxable Equivalent (FTE)

Results of Operations

The following discussion and analysis is designed to provide a better understanding of the significant changes and trends related to the Company and the Bank’s financial condition, operating results, asset and liability management, liquidity and capital resources and should be read in conjunction with the Condensed Consolidated Financial Statements of the Company and the Notes thereto located at Item 1 of this report.

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Net Interest Income

The Company’s primary source of revenue is net interest income, or the difference between interest income on interest-earning assets and interest expense on interest-bearing liabilities. Following is a summary of the components of FTE net income for the periods indicated.

	Three months ended
(in thousands)	March 31, 2024			March 31, 2023			Change			% Change
Interest income	$	115,417		$	102,907		$	12,510		12.2	%
Interest expense	(32,681)			(9,571)			(23,110)			241.5	%
Fully tax-equivalent adjustment (FTE) (1)	275			392			(117)			(29.8)	%
Net interest income (FTE)	$	83,011		$	93,728		$	(10,717)		(11.4)	%
Net interest margin (FTE)	3.68		%	4.20		%
Acquired loans discount accretion, net:
Amount (included in interest income)	$	1,332		$	1,397		$	(65)		(4.7)	%
Net interest margin less effect of acquired loan discount accretion(1)	3.62		%	4.14		%	(0.52)		%

(1)Certain information included herein is presented on a FTE basis and/or to present additional financial details which may be desired by users of this financial information. The Company believes the use of this non-generally accepted accounting principles (non-GAAP) measure provides additional clarity in assessing its results, and the presentation of these measures is a common practice within the banking industry.

Loans may be acquired at a premium or discount to par value, in which case, the premium is amortized (subtracted from) or the discount is accreted (added to) interest income over the remaining life of the loan. The dollar impact of loan discount accretion and loan premium amortization decrease as the purchased loans mature or pay off early. Upon the early pay off of a loan, any remaining unaccreted discount or unamortized premium is immediately taken into interest income; and as loan payoffs may vary significantly from quarter to quarter, so may the impact of discount accretion and premium amortization on interest income. Despite the elevated rate environment, the prepayment rate of portfolio loans, inclusive of those acquired at a premium or discount, remains consistent. During the quarter ended March 31, 2024 and March 31, 2023, the purchased loan discount accretion was $1.3 million and $1.4 million, respectively.

40

Summary of Average Balances, Yields/Rates and Interest Differential

The following table presents, for the three month periods indicated, information regarding the Company’s consolidated average assets, liabilities and shareholders’ equity, the amounts of interest income from average interest-earning assets and resulting yields, and the amount of interest expense paid on interest-bearing liabilities. Average loan balances include nonperforming loans. Interest income includes proceeds from loans on nonaccrual loans only to the extent cash payments have been received and applied to interest income. Yields on securities and certain loans have been adjusted upward to reflect the effect of income thereon exempt from federal income taxation at the current statutory tax rate (dollars in thousands).

	For the three months ended
	March 31, 2024						March 31, 2023
	Average Balance		Interest Income/ Expense		Rates Earned /Paid		Average Balance		Interest Income/ Expense		Rates Earned /Paid
Assets:
Loans	$	6,785,840	$	96,485	5.72	%	$	6,413,958	$	82,415	5.21	%
Investment securities - taxable	2,127,420		17,829		3.37	%	2,415,485		18,916		3.18	%
Investment securities - nontaxable(1)	138,900		1,192		3.45	%	189,050		1,699		3.64	%
Total investments	2,266,320		19,021		3.38	%	2,604,535		20,615		3.21	%
Cash at Federal Reserve and other banks	14,377		186		5.20	%	26,818		269		4.07	%
Total interest-earning assets	9,066,537		115,692		5.13	%	9,045,311		103,299		4.63	%
Other assets	789,260						850,866
Total assets	$	9,855,797					$	9,878,927
Liabilities and shareholders’ equity:
Interest-bearing demand deposits	$	1,710,844	$	4,947	1.16	%	$	1,673,114	$	387	0.09	%
Savings deposits	2,651,917		10,900		1.65	%	2,898,463		4,154		0.58	%
Time deposits	811,894		7,682		3.81	%	274,805		604		0.89	%
Total interest-bearing deposits	5,174,655		23,529		1.83	%	4,846,382		5,145		0.43	%
Other borrowings	584,696		7,378		5.08	%	277,632		2,809		4.10	%
Junior subordinated debt	101,106		1,774		7.06	%	101,044		1,617		6.49	%
Total interest-bearing liabilities	5,860,457		32,681		2.24	%	5,225,058		9,571		0.74	%
Noninterest-bearing deposits	2,646,389						3,372,194
Other liabilities	174,359						194,202
Shareholders’ equity	1,174,592						1,087,473
Total liabilities and shareholders’ equity	$	9,855,797					$	9,878,927
Net interest spread(2)					2.89	%					3.89	%
Net interest income and interest margin(3)			$	83,011	3.68	%			$	93,728	4.20	%

(1)Fully taxable equivalent (FTE). All yields and rates are calculated using specific day counts for the period and year as applicable.

(2)Net interest spread represents the average yield earned on interest-earning assets minus the average rate paid on interest-bearing liabilities.

(3)Net interest margin is computed by calculating the difference between interest income and interest expense, divided by the average balance of interest-earning assets, then annualized based on the number of days in the given period.

Net interest income (FTE) during the three months ended March 31, 2024, decreased $4.0 million or 4.6% to $83.0 million compared to $87.0 million during the three months ended December 31, 2023. In addition, net interest margin declined 13 basis points to 3.68%, compared to the trailing quarter. The decrease in net interest income is primarily attributed to an additional $2.4 million or 11.4% in deposit interest expense due to changes in product mix as customers continue to be drawn towards higher yielding term deposit accounts. Deposit cost increases during the current quarter were also influenced by continued competitive pricing pressures. Net interest income for the quarter was also impacted by an increase of $1.0 million in other borrowings costs and declines in investment income totaling $1.4 million, with a partial offset from increased loan income of $1.0 million.

As compared to the same quarter in the prior year, average loan yields increased 51 basis points from 5.21% during the three months ended March 31, 2023, to 5.72% during the three months ended March 31, 2024. The accretion of discounts from acquired loans added 9 and 11 basis points to loan yields during the quarters ended March 31, 2024 and March 31, 2023, respectively. The rates paid on interest bearing deposits increased by 21 basis points during the quarter ended March 31, 2024, compared to the trailing quarter. The cost of interest-bearing deposits increased by 140 basis points between the quarter ended March 31, 2024, and the same quarter of the prior year. In addition, the average balance of noninterest-bearing deposits decreased by $170.3 million quarter over quarter and decreased by $725.8 million from three month average for the period ended March 31, 2023 amidst a continued migration of customer funds to interest-bearing products. As of March 31, 2024, the ratio of average total noninterest-bearing deposits to total average deposits was 33.8%, as compared to 35.2% and 41.0% at December 31, 2023 and March 31, 2023, respectively.

41

Summary of Changes in Interest Income and Expense due to Changes in Average Asset and Liability Balances and Yields Earned and Rates Paid

The following table sets forth, for the period identified, a summary of the changes in interest income and interest expense from changes in average asset and liability balances (volume) and changes in average interest rates for the periods indicated. Changes not solely attributable to volume or rates have been allocated in proportion to the respective volume and rate components.

	Three months ended March 31, 2024 compared with three months ended March 31, 2023
(in thousands)	Volume		Rate		Total
Increase (decrease) in interest income:
Loans	$	4,859	$	9,211	$	14,070
Investment securities	(2,748)		1,154		(1,594)
Cash at Federal Reserve and other banks	(127)		44		(83)
Total interest-earning assets	1,984		10,409		12,393
Increase (decrease) in interest expense:
Interest-bearing demand deposits	8		4,552		4,560
Savings deposits	(357)		7,103		6,746
Time deposits	1,195		5,883		7,078
Other borrowings	3,147		1,422		4,569
Junior subordinated debt	1		156		157
Total interest-bearing liabilities	3,994		19,116		23,110
Decrease in net interest income	$	(2,010)	$	(8,707)	$	(10,717)

The following commentary regarding net interest income, interest income and interest expense may be best understood while referencing the Summary of Average Balances, Yields/Rates and Interest Differential and the Summary of Changes in Interest Income and Expense due to Changes in Average Asset and Liability Balances and Yields Earned and Rates Paid shown above.

Net interest income (FTE) during the three months ended March 31, 2024 decreased $10.7 million to $83.0 million compared to $93.7 million during the three months ended March 31, 2023. The overall decrease in net interest income (FTE) was due to increasing interest rates elevating interest expense on interest-bearing liabilities, most significantly deposits and other borrowings, resulting in a net increase of $18.3 million and $4.5 million, respectively. Elevated interest rates also improved interest income on earning assets by $10.4 million, partially offsetting the increases in interest expense.

Asset Quality and Credit Loss Provisioning

During the three months ended March 31, 2024, the Company recorded a provision for credit losses of $4.3 million, as compared to $6.0 million during the trailing quarter, and $4.2 million during the first quarter of 2023.

	Three months ended
(dollars in thousands)	March 31, 2024		December 31, 2023		March 31, 2023
Addition to allowance for credit losses	$	4,015	$	6,040	$	4,315
Addition to (reversal of) reserve for unfunded loan commitments	290		(50)		(120)
Total provision for (reversal of) credit losses	$	4,305	$	5,990	$	4,195

The allowance for credit losses (ACL) was $124.4 million or 1.83% of total loans as of March 31, 2024. The provision for credit losses on loans of $4.0 million during the recent quarter was the net effect of charge-offs and increases in reserves for qualitative factors and quantitative reserves under the cohort model, inclusive of a $1.5 million decrease in specific reserves for individually evaluated credits. On a comparative basis, the provision for credit losses of $4.3 million during the three months ended March 31, 2023, was attributed to both loan growth and qualitative components of the ACL model. For the current quarter, the qualitative components of the ACL resulted in a net increase in required reserves due primarily to year over year increases in concentrated loan growth and California unemployment trends. The quantitative component of the ACL decreased reserve requirements by approximately $1.3 million over the trailing quarter, primarily attributed to decreases in specific reserves.

42

	Three months ended
(dollars in thousands)	March 31, 2024		March 31, 2023
Balance, beginning of period	$	121,522	$	105,680
Provision for credit losses	4,015		4,315
Loans charged-off	(1,275)		(1,758)
Recoveries of previously charged-off loans	132		170
Balance, end of period	$	124,394	$	108,407

The Company utilizes a forecast period of approximately eight quarters and obtains the forecast data from publicly available sources as of the balance sheet date. This forecast data continues to evolve and includes improving shifts in the magnitude of changes for both the unemployment and GDP factors leading up to the balance sheet date. Despite continued declines on a year over year comparative basis, core inflation remains elevated from wage pressures, and higher living costs such as housing, energy and food prices. Management notes the rapid intervals of rate increases by the Federal Reserve may create repricing risk for certain borrowers and continued inversion of the yield curve, creates informed expectations of the US potentially entering a recession within 12 months. While projected cuts in interest rates from the Federal Reserve during 2024 may improve this outlook, the uncertainty associated with the extent and timing of these potential reductions has inhibited a material benefit to forecasted reserve levels. As a result, management continues to believe that certain credit weaknesses are likely present in the overall economy and that it is appropriate to cautiously maintain a reserve level that incorporates such risk factors.

Loans past due 30 days or more decreased by $2.9 million during the quarter ended March 31, 2024, to $16.5 million, as compared to $19.4 million at December 31, 2023. Of the total $16.5 million in loans identified as past due, approximately $4.7 million is less than 90 days past due, the majority of which is well-secured. Non-performing loans were $34.2 million at March 31, 2024, an increase of $2.4 million from $31.9 million as of December 31, 2023, and an increase of $18.2 million from $16.0 million as of March 31, 2023. The increase in non-performing loans as compared to the trailing quarter is concentrated between non-owner occupied commercial real estate and agriculture lending, specifically the result of declines in commodity pricing and therefore, expected revenue available to borrowers from harvest proceeds. Management continues to proactively work with these borrowers to identify actionable and appropriate resolution strategies which are customary for the industries. Of the $34.2 million loans designated as non-performing as of March 31, 2024, approximately $21.3 million are current with respect to payments required under their original loan agreements.

	March 31,			% of Loans Outstanding		December 31,			% of Loans Outstanding		March 31			% of Loans Outstanding
(dollars in thousands)	2024					2023					2023
Risk Rating:
Pass	$	6,616,294		97.3	%	$	6,603,161		97.2	%	$	6,232,962		97.0	%
Special Mention	108,073			1.6	%	103,812			1.5	%	125,492			2.0	%
Substandard	76,328			1.1	%	87,497			1.3	%	63,967			1.0	%
Total	$	6,800,695				$	6,794,470				$	6,422,421
Classified loans to total loans	1.12		%			1.29		%			1.00		%
Loans past due 30+ days to total loans	0.24		%			0.29		%			0.12		%

The ratio of classified loans to total loans of 1.12% as of March 31, 2024 decreased 17 basis points from December 31, 2023 and increased 12 basis points from the comparative quarter ended 2023. The improvement in classified loans outstanding was spread amongst several substandard relationships primarily within commercial real estate. As a percentage of total loans outstanding, classified assets remain consistent with volumes experienced prior to the recent quantitative easing cycle spurred by the COVID pandemic, and reflects management's historically conservative approach to credit risk monitoring. The Company's combined criticized loan balances decreased during the quarter by $6.9 million to $184.4 million as of March 31, 2024 and Management believes the associated credit risk has been adequately reserved against.

As of March 31, 2024, other real estate owned consisted of 10 properties with a carrying value of approximately $2.5 million, a decrease of $0.2 million from the trailing quarter ended.

Non-performing assets of $36.7 million at March 31, 2024, represented 0.37% of total assets, a change from the $34.6 million or 0.35% and $19.5 million or 0.20% as of December 31, 2023 and March 31, 2023, respectively.

43

Non-interest Income

The following table summarizes the Company’s non-interest income for the periods indicated (in thousands):

	Three months ended March 31,
(in thousands)	2024		2023		$ Change		% Change
ATM and interchange fees	$	6,169	$	6,344	$	(175)	(2.8)	%
Service charges on deposit accounts	4,663		3,431		1,232		35.9	%
Other service fees	1,366		1,166		200		17.2	%
Mortgage banking service fees	428		465		(37)		(8.0)	%
Change in value of mortgage servicing rights	11		(209)		220		(105.3)	%
Total service charges and fees	12,637		11,197		1,440		12.9	%
Increase in cash value of life insurance	803		802		1		0.1	%
Asset management and commission income	1,128		934		194		20.8	%
Gain on sale of loans	261		206		55		26.7	%
Lease brokerage income	161		98		63		64.3	%
Sale of customer checks	312		288		24		8.3	%
Loss on sale of investment securities	—		(164)		164		n/m
Gain (loss) on marketable equity securities	(28)		42		(70)		(166.7)	%
Other	497		232		265		114.2	%
Total other non-interest income	3,134		2,438		696		28.5	%
Total non-interest income	$	15,771	$	13,635	$	2,136	15.7	%

Non-interest income increased $2.1 million or 15.7% to $15.8 million during the three months ended March 31, 2024, compared to $13.6 million during the comparative quarter ended March 31, 2023. Service charges on deposit accounts increased by $1.2 million or 35.9% as compared to the equivalent period in 2023 following $0.9 million in waived or reversed fees due to a network outage in the earlier period.

44

Non-interest Expense

The following table summarizes the Company’s non-interest expense for the periods indicated:

	Three months ended March 31,
(in thousands)	2024		2023		$ Change		% Change
Base salaries, net of deferred loan origination costs	$	24,020	$	23,000	$	1,020	4.4	%
Incentive compensation	3,257		2,895		362		12.5	%
Benefits and other compensation costs	7,027		6,668		359		5.4	%
Total salaries and benefits expense	34,304		32,563		1,741		5.3	%
Occupancy	3,951		4,160		(209)		(5.0)	%
Data processing and software	5,107		4,032		1,075		26.7	%
Equipment	1,356		1,383		(27)		(2.0)	%
Intangible amortization	1,030		1,656		(626)		(37.8)	%
Advertising	762		759		3		0.4	%
ATM and POS network charges	1,661		1,709		(48)		(2.8)	%
Professional fees	1,340		1,589		(249)		(15.7)	%
Telecommunications	511		595		(84)		(14.1)	%
Regulatory assessments and insurance	1,251		792		459		58.0	%
Postage	308		299		9		3.0	%
Operational losses	352		435		(83)		(19.1)	%
Courier service	480		339		141		41.6	%
Gain on sale or acquisition of foreclosed assets	(38)		—		(38)		n/m
Loss on disposal of fixed assets	5		—		5		n/m
Other miscellaneous expense	4,124		3,483		641		18.4	%
Total other non-interest expense	22,200		21,231		969		4.6	%
Total non-interest expense	$	56,504	$	53,794	$	2,710	5.0	%
Average full time equivalent staff	1,188		1,219		(31)		(2.5)	%

Non-interest expense increased $2.7 million or 5.0% to $56.5 million during the three months ended March 31, 2024, as compared to $53.8 million for the quarter ended March 31, 2023. Total salaries and benefits expense increased by $1.7 million or 5.3% to $34.3 million, largely from annual compensation adjustments and other routine increases in benefits and compensation. Data processing and software expenses increased by $1.1 million or 26.7% related to ongoing investments in the Company's data management and security infrastructure. Regulatory assessment charges increased $0.5 million or 58.0% following the increase in assessment rates beginning in the second quarter of 2023.

Income Taxes

The Company’s effective tax rate was 26.4% for the quarter and year ended March 31, 2024, as compared to 28.4% for the period ended December 31, 2023. Differences between the Company's effective tax rate and applicable federal and state blended statutory rate of approximately 29.6% are due to the proportion of non-taxable revenues, non-deductible expenses, and benefits from tax credits as compared to the levels of pre-tax earnings.

Financial Condition

For financial reporting purposes, the Company does not separately track the changes in assets and liabilities based on branch location or regional geography. The following is a comparison of the quarterly change in certain assets and liabilities:

Ending balances	March 31,		December 31,				Annualized  % Change
(dollars in thousands)	2024		2023		$ Change
Total assets	$	9,813,767	$	9,910,089	$	(96,322)	(3.9)	%
Total loans	6,800,695		6,794,470		6,225		0.4
Total investments	2,221,555		2,305,882		(84,327)		(14.6)
Total deposits	7,987,658		7,834,038		153,620		7.8
Total other borrowings	392,409		632,582		(240,173)		(151.9)

45

Loans outstanding increased by $6.2 million or 0.4% on an annualized basis during the quarter ended March 31, 2024. During the quarter, loan originations/draws totaled approximately $325.5 million while payoffs/repayments of loans totaled $321.3 million, which compares to originations/draws and payoffs/repayments during the trailing quarter ended of $450.0 million and $368.0 million, respectively. While origination volume decreased from the previous quarter, activity levels continue to be lower relative to the comparative period in 2023 due in part to disciplined pricing and underwriting, as well as decreased borrower demand given economic uncertainties. Investment security balances decreased $84.3 million or 14.6% on an annualized basis as the result of net prepayments, and maturities, collectively totaling approximating $66.4 million, in addition to net decreases in the market value of securities of $15.9 million. For the foreseeable future, management intends to utilize cash flows from the investment security portfolio and organic deposit growth to support loan growth or reduce borrowings, thus driving an improved mix of earning assets. Deposit balances increased by $153.6 million or 7.8% annualized during the period, led by growth within time deposits. Proceeds from the call or maturity of investment securities, and growth in deposits, during the quarter supported a net decrease of $240.2 million in short-term borrowings, which totaled $392.4 million at March 31, 2024.

The following is a comparison of the year over year change in certain assets and liabilities:

Ending balances	As of March 31,						% Change
(dollars in thousands)	2024		2023		$ Change
Total assets	$	9,813,767	$	9,842,394	$	(28,627)	(0.3)	%
Total loans	6,800,695		6,422,421		378,274		5.9
Total investments	2,221,555		2,577,769		(356,214)		(13.8)
Total deposits	7,987,658		8,025,865		(38,207)		(0.5)
Total other borrowings	392,409		434,140		(41,731)		(9.6)

Loan balances increased as a result of organic activities by approximately $378.3 million or 5.9% during the twelve-month period ending March 31, 2024. Over the same period deposit balances have declined by $38.2 million or 0.5%. The Company has offset these declines through the deployment of excess cash balances, runoff of investment security balances, and proceeds from short-term Federal Home Loan Bank (FHLB) borrowings.

Investment Securities

Investment securities available for sale decreased $84.3 million to $2.1 billion as of March 31, 2024, compared to December 31, 2023. The decrease is attributed to $66.4 million in calls and principal repayments, in addition to $15.9 million in market value declines. There were no sales of investment securities during the three months ended March 31, 2024. Proceeds from the sale of investment securities totaled $24.2 million for the three months ended March 31, 2023, resulting in gross realized losses of $0.2 million. The following table presents the available for sale debt securities portfolio by major type as of March 31, 2024 and December 31, 2023:

	March 31, 2024				December 31, 2023
(in thousands)	Fair Value		%		Fair Value		%
Debt securities available for sale:
Obligations of U.S. government agencies	$	1,170,192	56.4	%	$	1,221,737	56.8	%
Obligations of states and political subdivisions	234,177		11.3	%	236,375		11.0	%
Corporate bonds	5,746		0.3	%	5,602		0.3	%
Asset backed securities	359,673		17.3	%	355,281		16.5	%
Non-agency mortgage backed	304,100		14.7	%	333,509		15.4	%
Total debt securities available for sale	$	2,073,888	100.0	%	$	2,152,504	100.0	%

	March 31, 2024				December 31, 2023
(in thousands)	Amortized Cost		%		Amortized Cost		%
Debt securities held to maturity:
Obligations of U.S. government and agencies	$	125,131	97.9	%	$	130,823	98.0	%
Obligations of states and political subdivisions	2,680		2.1	%	2,671		2.0	%
Total debt securities held to maturity	$	127,811	100.0	%	$	133,494	100.0	%

Investment securities held to maturity decreased $5.7 million to $127.8 million as of March 31, 2024, as compared to December 31, 2023. This decrease is attributable to calls and principal repayments of $5.6 million, and amortization of net purchase premiums of $0.1 million.

46

Loans

The Company focuses its primary lending activities in six principal areas: commercial real estate loans, consumer loans, commercial and industrial loans, construction loans, agriculture production loans and leases. The interest rates charged for the loans made by the Company vary with the degree of risk, the size and duration of the loans, the borrower’s relationship with the Company and prevailing money market rates indicative of the Company’s cost of funds.

The majority of the Company’s loans are direct loans made to individuals, and local or regional businesses which service a variety of industries. The Company relies substantially on local promotional activity and personal contacts by bank officers, directors and employees to compete with other financial institutions. The Company makes loans to borrowers whose applications include a sound purpose, a viable repayment source and a plan of repayment established at inception and generally backed by a secondary source of repayment.

The following table shows the Company’s loan balances, net deferred loan costs and discounts, as of the dates indicated:

(in thousands)	March 31, 2024				December 31, 2023
Commercial real estate	$	4,443,768	65.4	%	$	4,394,802	64.7	%
Consumer	1,303,757		19.2	%	1,313,268		19.3	%
Commercial and industrial	549,780		8.1	%	586,455		8.6	%
Construction	348,981		5.1	%	347,198		5.1	%
Agriculture production	145,159		2.1	%	144,497		2.2	%
Leases	9,250		0.1	%	8,250		0.1	%
Total loans	$	6,800,695	100.0	%	$	6,794,470	100.0	%

Nonperforming Assets

The following tables set forth the amount of the Company’s NPAs as of the dates indicated. “Performing nonaccrual loans” are loans that may be current for both principal and interest payments, or are less than 90 days past due, but for which payment in full of both principal and interest is not expected, and are not well secured and in the process of collection:

(in thousands)	March 31, 2024			December 31, 2023
Performing nonaccrual loans	$	22,449		$	25,380
Nonperforming nonaccrual loans	11,686			6,500
Total nonaccrual loans	34,135			31,880
Loans 90 days past due and still accruing	107			10
Total nonperforming loans	34,242			31,890
Foreclosed assets	2,493			2,705
Total nonperforming assets	$	36,735		$	34,595
Nonperforming assets to total assets	0.37		%	0.35		%
Nonperforming loans to total loans	0.50		%	0.47		%
Allowance for credit losses to nonperforming loans	363		%	381		%

47

Changes in nonperforming assets during the three months ended March 31, 2024

(in thousands)	Balance at December 31, 2023		New NPA / Valuation Adjustments	Pay-downs /Sales /Upgrades	Charge-offs/ (1) Write-downs	Transfers to Foreclosed Assets	Balance at March 31, 2024
Commercial real estate:
CRE non-owner occupied	$	2,024	2,338	(250)	—	—	$	4,112
CRE owner occupied	3,994		—	(89)	—	—	3,905
Multifamily	—		—	—	—	—	—
Farmland	14,484		—	(704)	—	—	13,780
Total commercial real estate loans	20,502		2,338	(1,043)	—	—	21,797
Consumer
SFR 1-4 1st DT liens	2,811		2,490	(181)	(26)	—	5,094
SFR HELOCs and junior liens	3,571		557	(694)	(31)	—	3,403
Other	105		171	(4)	(173)	—	99
Total consumer loans	6,487		3,218	(879)	(230)	—	8,596
Commercial and industrial	2,513		720	(695)	(130)	—	2,408
Construction	67		9	—	—	(12)	64
Agriculture production	2,321		—	(107)	(837)	—	1,377
Leases	—		—	—	—	—	—
Total nonperforming loans	31,890		6,285	(2,724)	(1,197)	(12)	34,242
Foreclosed assets	2,705		(223)	(1)	—	12	2,493
Total nonperforming assets	$	34,595	6,062	(2,725)	(1,197)	—	$	36,735

(1) The table above does not include deposit overdraft charge-offs.

Nonperforming assets increased during the three months ended March 31, 2024 by $2.1 million or 6.0% to $36.7 million compared to $34.6 million at December 31, 2023. The increase in nonperforming assets during the first quarter of 2024 was primarily the result of nonperforming loan increases/down-grades, which totaled $6.3 million during the quarter. Management is actively engaged in the collection and recovery efforts for all nonperforming assets and believes that the loan loss reserves associated with these loans is sufficient as of March 31, 2024.

Loan charge-offs during the three months ended March 31, 2024

In the first quarter of 2024, the Company recorded $1.2 million in loan charge-offs and $0.1 million in deposit overdraft charge-offs less $0.1 million in loan recoveries and $0.03 million in deposit overdraft recoveries, which collectively resulted in $1.1 million in net charge-offs.

(in thousands)

The Components of the Allowance for Credit Losses for Loans

The following table sets forth the allowance for credit losses for loans as of the dates indicated:

(in thousands)	March 31, 2024			December 31, 2023			March 31, 2023
Allowance for credit losses:
Qualitative and forecast factor allowance	$	88,526		$	84,291		$	75,467
Cohort model allowance reserves	34,385			34,139			32,054
Allowance for individually evaluated loans	1,483			3,092			886
Total allowance for credit losses	$	124,394		$	121,522		$	108,407
Allowance for credit losses for loans / total loans	1.83		%	1.79		%	1.69		%

For additional information regarding the allowance for loan losses, including changes in specific, formula, and environmental factors allowance categories, see “Asset Quality and Loan Loss Provisioning” at “Results of Operations”, above. Based on the current conditions of the loan portfolio, management believes that the $124.4 million allowance for loan losses at March 31, 2024 is adequate to absorb probable losses inherent in the Bank’s loan portfolio. No assurance can be given, however, that adverse economic conditions or other circumstances will not result in increased losses in the portfolio.

48

The following table summarizes the allocation of the allowance for credit losses between loan types and by percentage of the total allowance for credit losses on loans as of the dates indicated:

(in thousands)	March 31, 2024				December 31, 2023				March 31, 2023
Commercial real estate	$	72,175	58.0	%	$	68,864	56.7	%	$	64,937	59.9	%
Consumer	27,441		22.1	%	27,453		22.6	%	24,896		23.0	%
Commercial and industrial	11,867		9.5	%	12,750		10.5	%	12,069		11.1	%
Construction	9,162		7.4	%	8,856		7.3	%	5,655		5.2	%
Agriculture production	3,708		2.9	%	3,589		2.9	%	833		0.7	%
Leases	41		0.1	%	10		—	%	17		0.1	%
Total allowance for credit losses	$	124,394	100.0	%	$	121,522	100.0	%	$	108,407	100.0	%

The following table summarizes the allocation of the allowance for credit losses as a percentage of the total loans for each loan category as of the dates indicated:

(in thousands)	March 31, 2024		December 31, 2023		March 31, 2023
Commercial real estate	1.62	%	1.57	%	1.49	%
Consumer	2.10	%	2.09	%	2.02	%
Commercial and industrial	2.16	%	2.17	%	2.18	%
Construction	2.63	%	2.55	%	2.50	%
Agriculture production	2.55	%	2.48	%	1.77	%
Leases	0.44	%	0.12	%	0.20	%
Total loans	1.83	%	1.79	%	1.69	%

49

The following table summarizes the activity in the allowance for credit losses for the periods indicated:

	Three months ended March 31,
(in thousands)	2024			2023
Allowance for credit losses:
Balance at beginning of period	$	121,522		$	105,680
ACL on PCD loans	—			—
Provision for (reversal of) loan losses	4,015			4,315
Loans charged-off:
Commercial real estate:
CRE non-owner occupied	—			—
CRE owner occupied	—			—
Multifamily	—			—
Farmland	—			—
Consumer:
SFR 1-4 1st DT liens	(26)			—
SFR HELOCs and junior liens	(32)			(42)
Other	(250)			(142)
Commercial and industrial	(130)			(1,574)
Construction	—			—
Agriculture production	(837)			—
Leases	—			—
Total loans charged-off	(1,275)			(1,758)
Recoveries of previously charged-off loans:
Commercial real estate:
CRE non-owner occupied	—			—
CRE owner occupied	—			—
Multifamily	—			—
Farmland	—			—
Consumer:
SFR 1-4 1st DT liens	—			—
SFR HELOCs and junior liens	49			65
Other	40			51
Commercial and industrial	22			53
Construction	—			—
Agriculture production	21			1
Leases	—			—
Total recoveries of previously charged-off loans	132			170
Net recoveries	(1,143)			(1,588)
Balance at end of period	$	124,394		$	108,407
Average total loans	$	6,785,840		$	6,413,958
Ratios (annualized):
Net (charge-offs) recoveries during period to average loans outstanding during period	(0.07)		%	(0.10)		%
Provision for credit losses to average loans outstanding during period	0.24		%	0.27		%

50

Foreclosed Assets, Net of Allowance for Losses

The following table details the components and summarize the activity in foreclosed assets, net of allowances for losses, for the three months ended March 31, 2024:

(in thousands)	Balance at December 31, 2023		Sales		Valuation Adjustments		Transfers from Loans		Balance at March 31, 2024
Land & construction	$	154	$	—	$	39	$	12	$	205
Residential real estate	1,673		—		(261)		—		1,412
Commercial real estate	877		—		—		—		877
Total foreclosed assets	$	2,704	$	—	$	(222)	$	12	$	2,494

Deposits

During the three months ended March 31, 2024, the Company’s deposits increased by $153.6 million to $8.0 billion at quarter end. There were no brokered deposits included in the deposit balances as of March 31, 2024 and December 31, 2023, respectively.

Off-Balance Sheet Arrangements

See Note 9 to the condensed consolidated financial statements at Item 1 of Part I of this report for information about the Company’s commitments and contingencies including off-balance-sheet arrangements.

Capital Resources

The current and projected capital position of the Company and the impact of capital plans and long-term strategies are reviewed regularly by Management.

On February 25, 2021 the Board of Directors authorized the repurchase of up to 2,000,000 shares of the Company's common stock (the 2021 Repurchase Plan), which approximated 6.7% of the shares outstanding as of the approval date. The actual timing of any share repurchases will be determined by the Company's management and therefore the total value of the shares to be purchased under the 2021 Repurchase Plan is subject to change. The Company may repurchase its outstanding shares of common stock from time to time in open market or privately-negotiated transactions, including block trades, or pursuant to 10b5-1 trading plans. The 2021 Repurchase Plan has no expiration date (in accordance with applicable laws and regulations).

During the three months ended March 31, 2024 and 2023, the Company repurchased 99,332 and 150,000 shares with market values of $3.4 million and $7.0 million, respectively. During the quarter ended March 31, 2024, the Company repurchased 99,332 shares of common stock at an average price of $34.31 per share or 97.9% of the book value per share as of March 31, 2024. In addition, the Company’s Tier 1 common equity and tangible capital ratios increased to 12.5% and 8.9%, respectively as of March 31, 2024, compared to 12.2% and 8.8%, respectively, as of December 31, 2023.

Total shareholders' equity increased by $3.4 million during the quarter ended March 31, 2024, as net income of $27.7 million was partially offset by a $11.2 million increase in accumulated other comprehensive losses, and cash dividend payments on common stock of approximately $11.0 million. As a result, the Company’s book value grew to $35.06 per share at March 31, 2024, compared to $32.84 at March 31, 2023. The Company’s tangible book value per share, a non-GAAP measure, calculated by subtracting goodwill and other intangible assets from total shareholders’ equity and dividing that sum by total shares outstanding, was $25.60 per share at March 31, 2024, as compared to $23.22 at March 31, 2023. As noted above, changes in the fair value of available-for-sale investment securities, net of deferred taxes continue to create moderate levels of volatility in tangible book value per share.

Trailing Quarter Balance Sheet Change

	March 31, 2024				December 31, 2023
	Ratio		Minimum Regulatory Requirement		Ratio		Minimum Regulatory Requirement
Total risk based capital	15.0	%	10.5	%	14.7	%	10.5	%
Tier I capital	13.2	%	8.5	%	13.0	%	8.5	%
Common equity Tier 1 capital	12.5	%	7.0	%	12.3	%	7.0	%
Leverage	11.0	%	4.0	%	10.8	%	4.0	%

See Note 10 and Note 16 to the condensed consolidated financial statements at Item 1 of Part I of this report for additional information about the Company’s capital resources.

51

As of March 31, 2024, we had an effective shelf registration statement on file with the Securities and Exchange Commission that allows us to issue various types of debt securities, as well as common stock, preferred stock, warrants, depository shares representing fractional interest in shares of preferred stock, purchase contracts and units from time to time in one or more offerings. Each issuance under the shelf registration statement will require the filing of a prospectus supplement identifying the amount and terms of the securities to be issued. The registration statement does not limit the amount of securities that may be issued thereunder. Our ability to issue securities is subject to market conditions and other factors including, in the case of our debt securities, our credit ratings and compliance with current and prospective covenants in credit agreements.

Liquidity

The Company's primary sources of liquidity include the following for the periods indicated:

(dollars in thousands)	March 31, 2024		December 31, 2023
Borrowing capacity at correspondent banks and FRB	$	2,882,859	$	2,921,525
Less: borrowings outstanding	(367,000)		(600,000)
Unpledged available-for-sale investment securities	1,435,990		1,558,506
Cash held or in transit with FRB	41,541		51,253
Total primary liquidity	$	3,993,390	$	3,931,284

At March 31, 2024, the Company's primary sources of liquidity represented 50% of total deposits and 163% of estimated total uninsured (excluding collateralized municipal deposits and intercompany balances) deposits, respectively. As secondary sources of liquidity, the Company's held-to-maturity investment securities had a fair value of $118.5 million, including approximately $9.3 million in net unrealized losses.

At March 31, 2024, the Company had $200.0 million of short-term fixed rate FHLB borrowings maturing on April 8, 2024. This debt was repaid at maturity. Separately, on April 8, 2024, the Company borrowed four tranches of short-term fixed rate advances totaling $280.0 million from the FHLB as follows:

(in thousands)
Term borrowing at FHLB, fixed rate of 5.61%, payable on June 7, 2024	$	55,000
Term borrowing at FHLB, fixed rate of 5.59%, payable on July 8, 2024	75,000
Term borrowing at FHLB, fixed rate of 5.46%, payable on October 7, 2024	75,000
Term borrowing at FHLB, fixed rate of 5.23%, payable on April, 8, 2025	75,000
Total other borrowings	$	280,000

The Company’s profitability during the first three months of 2024 generated cash flows from operations of $25.1 million compared to $39.0 million during the first three months of 2023. Net cash from investing activities was $60.0 million for the three months ended March 31, 2024, compared to net cash from investing activities of $115.3 million during the three months ending 2023. Financing activities used $100.9 million during the three months ended March 31, 2024, compared to $151.1 million during the three months ended March 31, 2023.

The changes in contractual obligations of the Company and Bank, to include but not limited to term subordinated debt, operating leases, deferred compensation and supplemental retirement plans as well as off-balance sheet commitments such as unfunded loans and letters of credit. These contractual obligations are otherwise consistent with similar balances or totals as of December 31, 2023.

The Company is dependent upon the payment of cash dividends by the Bank to service its commitments, which have historically included dividends to shareholders, scheduled debt service payments, and general operations. Shareholder dividends are expected to continue subject to the Board’s discretion and management's continuing evaluation of capital levels, earnings, asset quality and other factors. The Company expects that the cash dividends paid by the Bank to the Company will be sufficient to cover the Company's cash flow needs. However, the Company and its ability to generate liquidity through either the issuance of stock or debt, also serves as a potential source of strength for the Bank. Dividends paid by the Company to holders of its common stock used $11.0 million and $10.0 million of cash during the three months ended March 31, 2024 and 2023, respectively. The Company’s liquidity is dependent on dividends received from the Bank. Dividends from the Bank are subject to certain regulatory restrictions.

52

TRICO BANCSHARES—NON-GAAP FINANCIAL MEASURES

(Unaudited. Dollars in thousands)

In addition to results presented in accordance with generally accepted accounting principles in the United States of America (GAAP), this filing contains certain non-GAAP financial measures. Management has presented these non-GAAP financial measures in this filing because it believes that they provide useful and comparative information to assess trends in the Company's core operations reflected in the current quarter's results, and facilitate the comparison of our performance with the performance of our peers. However, these non-GAAP financial measures are supplemental and are not a substitute for any analysis based on GAAP. Where applicable, comparable earnings information using GAAP financial measures is also presented. Because not all companies use the same calculations, our presentation may not be comparable to other similarly titled measures as calculated by other companies. For a reconciliation of these non-GAAP financial measures, see the tables below:

	Three months ended
(dollars in thousands)	March 31, 2024		December 31, 2023		March 31, 2023
Net interest margin
Acquired loans discount accretion, net:
Amount (included in interest income)	$1,332		$1,459		$1,397
Effect on average loan yield	0.08	%	0.09	%	0.09	%
Effect on net interest margin (FTE)	0.06	%	0.06	%	0.06	%
Net interest margin (FTE)	3.68	%	3.81	%	4.20	%
Net interest margin less effect of acquired loan discount accretion (Non-GAAP)	3.62	%	3.75	%	4.14	%

	Three months ended
(dollars in thousands)	March 31, 2024		December 31, 2023		March 31, 2023
Pre-tax pre-provision return on average assets or equity
Net income (GAAP)	$27,749		$26,075		$35,833
Exclude provision for income taxes	9,949		10,325		13,149
Exclude provision for credit losses	4,305		5,990		4,195
Net income before income tax and provision expense (Non-GAAP)	$42,003		$42,390		$53,177
Average assets (GAAP)	$9,855,797		$9,879,355		$9,878,927
Average equity (GAAP)	$1,174,592		$1,097,431		$1,087,473
Return on average assets (GAAP) (annualized)	1.13	%	1.05	%	1.47	%
Pre-tax pre-provision return on average assets (Non-GAAP) (annualized)	1.71	%	1.70	%	2.18	%
Return on average equity (GAAP) (annualized)	9.50	%	9.43	%	13.36	%
Pre-tax pre-provision return on average equity (Non-GAAP) (annualized)	14.38	%	15.32	%	19.83	%

53

	Three months ended
(dollars in thousands)	March 31, 2024		December 31, 2023		March 31, 2023
Return on tangible common equity
Average total shareholders' equity	$1,174,592		$1,097,431		$1,087,473
Exclude average goodwill	304,442		304,442		304,442
Exclude average other intangibles	10,037		11,160		15,842
Average tangible common equity (Non-GAAP)	$860,113		$781,829		$767,189
Net income (GAAP)	$27,749		$26,075		$35,833
Exclude amortization of intangible assets, net of tax effect	725		857		1,166
Tangible net income available to common shareholders (Non-GAAP)	$28,474		$26,932		$36,999
Return on average equity (GAAP) (annualized)	9.50	%	9.43	%	13.36	%
Return on average tangible common equity (Non-GAAP)	13.31	%	13.67	%	19.56	%

	Three months ended
(dollars in thousands)	March 31, 2024		December 31, 2023		September 30, 2023		June 30, 2023		March 31, 2023
Tangible shareholders' equity to tangible assets
Shareholders' equity (GAAP)	$1,163,051		$1,159,682		$1,070,401		$1,092,781		$1,090,245
Exclude goodwill and other intangible assets, net	313,964		314,994		316,210		317,800		319,456
Tangible shareholders' equity (Non-GAAP)	$849,087		$844,688		$754,191		$774,981		$770,789
Total assets (GAAP)	$9,813,767		$9,910,089		$9,897,006		$9,853,421		$9,842,394
Exclude goodwill and other intangible assets, net	313,964		314,994		316,210		317,800		319,456
Total tangible assets (Non-GAAP)	$9,499,803		$9,595,095		$9,580,796		$9,535,621		$9,522,938
Shareholders' equity to total assets (GAAP)	11.85	%	11.70	%	10.82	%	11.09	%	11.08	%
Tangible shareholders' equity to tangible assets (Non-GAAP)	8.94	%	8.80	%	7.87	%	8.13	%	8.09	%

	Three months ended
(dollars in thousands)	March 31, 2024	December 31, 2023	September 30, 2023	June 30, 2023	March 31, 2023
Tangible common shareholders' equity per share
Tangible shareholders' equity (Non-GAAP)	$849,087	$844,688	$754,191	$774,981	$770,789
Common shares outstanding at end of period	33,168,770	33,268,102	33,263,324	33,259,260	33,195,250
Common shareholders' equity (book value) per share (GAAP)	$35.06	$34.86	$32.18	$32.86	$32.84
Tangible common shareholders' equity (tangible book value) per share (Non-GAAP)	$25.60	$25.39	$22.67	$23.30	$23.22

54

Item 3.    Quantitative and Qualitative Disclosures about Market Risk

Based on the changes in interest rates as well as the mix shift of interest earning assets and interest bearing liabilities occurring subsequent to December 31, 2023, the following update of the Company’s assessment of market risk as of March 31, 2024 is being provided. These updates and changes should be read in conjunction with the additional quantitative and qualitative disclosures in our Annual Report on Form 10-K for the year ended December 31, 2023.

As of March 31, 2024, the Company's loan portfolio consisted of approximately $6.8 billion in outstanding principal with a weighted average coupon rate of 5.47%. During the three-month periods ending March 31, 2024, December 31, 2023, and March 31, 2023, the weighted average coupon on loan production in the quarter was 7.78%, 7.54% and 6.91%, respectively. Included in the March 31, 2024 total loans are adjustable rate loans totaling $3.6 billion, of which, $974.1 million are considered floating based on the Wall Street Prime index. In addition, the Company holds certain investment securities with fair values totaling $345.6 million which are subject to repricing on not less than a quarterly basis.

Management funds the acquisition of nearly all of its earning assets through its core deposit gathering activities. As of March 31, 2024, non-interest bearing deposits represented 32.6% of total deposits. Further, during the quarter ended March 31, 2024, the cost of interest bearing deposits were 1.83% and the cost of total deposits were 1.21%. With the intent of stabilizing or increasing net interest income, management intends to continue to deploy its excess liquidity and seek to migrate certain earning assets into higher yielding categories (from investment securities and into loans, for example). However, in situations where deposit balances contract, management may rely upon various borrowing facilities or the use of brokered deposits. Through the first quarter of 2024 and during the entire 2023 year, management did not utilize any brokered deposits. Management did however utilize borrowing lines from the FHLB and expects that such borrowings will be needed through the remainder of the year and into 2025. As the rate paid on these borrowed funds are correlated with short-term interest rates, the costs associated with these borrowings will be correlated with the rate adjustment actions by the Federal Reserve, if any.

As of March 31, 2024 the overnight Federal funds rate, the rate primarily used in these interest rate shock scenarios, was 5.32%. These scenarios assume that 1) interest rates increase or decrease evenly (in a “ramp” fashion) over a twelve-month period and remain at the new levels beyond twelve months or 2) that interest rates change instantaneously (“shock”). The simulation results shown below assume no changes in the structure of the Company’s balance sheet over the twelve months being measured.

The following table summarizes the estimated effect on net interest income and market value of equity to changing interest rates as measured against a flat rate (no interest rate change) instantaneous parallel shock scenario over a twelve month period utilizing a interest sensitivity (GAP) analysis based on the Company's specific mix of interest earning assets and interest bearing liabilities as of March 31, 2024.

Interest Rate Risk Simulations:

Change in Interest Rates (Basis Points)	Estimated Change in Net Interest Income (NII) (as % of NII)		Estimated  Change in  Market Value of Equity (MVE) (as % of MVE)
+300 (shock)	(7.6)	%	(8.0)	%
+200 (shock)	(5.3)	%	(5.6)	%
+100 (shock)	(2.5)	%	(1.8)	%
+    0 (flat)	—		—
-100 (shock)	0.3	%	(2.5)	%
-200 (shock)	0.2	%	(8.3)	%
-300 (shock)	0.6	%	(17.1)	%

Item 4.    Controls and Procedures

The Company’s management, including its Chief Executive Officer and Chief Financial Officer, have evaluated the effectiveness of the Company’s disclosure controls and procedures as of March 31, 2024. Disclosure controls and procedures, as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), are controls and procedures designed to reasonably assure that information required to be disclosed in the Company’s reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported on a timely basis. Disclosure controls are also designed to reasonably assure that such information is accumulated and communicated to the Company’s management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. Based upon their evaluation, our Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of March 31, 2024.

During the three months ended March 31, 2024, there were no changes in our internal controls or in other factors that have materially affected or are reasonably likely to materially affect our internal controls over financial reporting.

55

PART II – OTHER INFORMATION

Item 1 — Legal Proceedings

Due to the nature of our business, we are involved in legal proceedings that arise in the ordinary course of our business. While the outcome of these matters is currently not determinable, we do not expect that the ultimate costs to resolve these matters will have a material adverse effect on our consolidated financial position, results of operations, or cash flows.

Item 1A — Risk Factors

In evaluating an investment in the Company's common stock, investors should consider carefully, among other things, the risk factors previously disclosed in Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2023 filed with the SEC on February 29, 2024, and in the information contained in this Quarterly Report on Form 10-Q and our other reports and registration statements.

Item 2 — Unregistered Sales of Equity Securities and Use of Proceeds

The following table shows the repurchases made by the Company or any affiliated purchaser (as defined in Rule 10b-18(a)(3) under the Exchange Act) during the periods indicated:

Period	(a) Total number of shares purchased (1)	(b) Average price paid per share		(c) Total number of shares purchased as of part of publicly announced plans or programs	(d) Maximum number of shares that may yet be purchased under the plans or programs at period end (2)
January 1-31, 2024	—	$	—	—	1,209,802
February 1-29, 2024	—	—		—	1,209,802
March 1-31, 2024	—	34.31		99,332	1,110,470
Total	—	$	34.31	99,332

(1)Includes shares purchased by the Company’s Employee Stock Ownership Plan in open market purchases and shares tendered by employees pursuant to various other equity incentive plans. See Notes 10 and 11 to the condensed consolidated financial statements at Item 1 of Part I of this report, for a discussion of the Company’s stock repurchased under equity compensation plans.

(2)Does not include shares that may be purchased by the Company’s Employee Stock Ownership Plan and pursuant to various other equity incentive plans. See Note 11 to the condensed consolidated financial statements at Item 1 of Part I of this report, for a discussion of the Company’s stock repurchase plan.

Item 5 — Other Information

Rule 10b5-1 Trading Arrangements

During the three months ended March 31, 2024, none of the Company’s directors or officers (as defined in Rule 16a-1(f)) adopted or terminated a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement (in each case, as defined in item 408 of Regulation S-K) for the purchase or sale of the Company's common stock.

56

Item 6 – Exhibits

EXHIBIT INDEX

Exhibit  No.	Exhibit
31.1	Rule 13a-14(a)/15d-14(a) Certification of CEO
31.2	Rule 13a-14(a)/15d-14(a) Certification of CFO
32.1	Section 1350 Certification of CEO
32.2	Section 1350 Certification of CFO
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document

57

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	TRICO BANCSHARES
	(Registrant)
Date: May 8, 2024	/s/ Peter G. Wiese
	Peter G. Wiese
	Executive Vice President and Chief Financial Officer
	(Duly authorized officer and principal financial and chief accounting officer)

58

EX-31.1

Exhibit 31.1

Rule 13a-14(a)/15d-14(a) Certification of CEO

I, Richard P. Smith, certify that;

1.I have reviewed this report on Form 10-Q of TriCo Bancshares;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiary, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 8, 2024	/s/ Richard P. Smith
	Richard P. Smith
	President and Chief Executive Officer

EX-31.2

Exhibit 31.2

Rule 13a-14(a)/15d-14(a) Certification of CFO

I, Peter G. Wiese, certify that;

1.I have reviewed this report on Form 10-Q of TriCo Bancshares;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiary, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 8, 2024	/s/ Peter G. Wiese
	Peter G. Wiese
	Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

Section 1350 Certification of CEO

In connection with the Quarterly Report of TriCo Bancshares (the “Company”) on Form 10-Q for the period ended March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Richard P. Smith, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Richard P. Smith

Richard P. Smith

President and Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to TriCo Bancshares and will be retained by TriCo Bancshares and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

Section 1350 Certification of CFO

In connection with the Quarterly Report of TriCo Bancshares (the “Company”) on Form 10-Q for the period ended March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Peter G. Wiese, Executive Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company

/s/ Peter G. Wiese

Peter G. Wiese

Executive Vice President and Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to TriCo Bancshares and will be retained by TriCo Bancshares and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover Page - shares	3 Months Ended
	Mar. 31, 2024	May 06, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	000-10661
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	94-2792841
Entity Address, Address Line One	63 Constitution Drive
Entity Address, City or Town	Chico
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95973
City Area Code	530
Local Phone Number	898-0300
Title of 12(b) Security	Common Stock
Trading Symbol	TCBK
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		33,174,385
Entity Registrant Name	TriCo Bancshares
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0000356171

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Cash and due from banks	$ 73,322	$ 81,626
Cash at Federal Reserve and other banks	9,514	17,075
Cash and cash equivalents	82,836	98,701
Investment securities:
Marketable equity securities	2,606	2,634
Available for sale debt securities, at fair value (amortized cost of $2,321,608 and $2,384,325)	2,073,888	2,152,504
Held to maturity debt securities, at amortized cost, net of allowance for credit losses of $0	127,811	133,494
Restricted equity securities	17,250	17,250
Loans held for sale	1,346	458
Loans	6,800,695	6,794,470
Allowance for credit losses	(124,394)	(121,522)
Total loans, net	6,676,301	6,672,948
Premises and equipment, net	71,001	71,347
Cash value of life insurance	137,695	136,892
Accrued interest receivable	35,783	36,768
Goodwill	304,442	304,442
Other intangible assets, net	9,522	10,552
Operating leases, right-of-use	26,240	26,133
Other assets	247,046	245,966
Total assets	9,813,767	9,910,089
Deposits:
Noninterest-bearing demand	2,600,448	2,722,689
Interest-bearing	5,387,210	5,111,349
Total deposits	7,987,658	7,834,038
Accrued interest payable	10,224	8,445
Operating lease liability	28,299	28,261
Other liabilities	131,006	145,982
Other borrowings	392,409	632,582
Junior subordinated debt	101,120	101,099
Total liabilities	8,650,716	8,750,407
Commitments and contingencies (Note 9)
Shareholders’ equity:
Preferred stock, no par value: 1,000,000 shares authorized, zero issued and outstanding at March 31, 2024 and December 31, 2023	0	0
Common stock, no par value: 50,000,000 shares authorized; 33,168,770 and 33,268,102 issued and outstanding at March 31, 2024 and December 31, 2023, respectively	696,464	697,349
Retained earnings	630,954	615,502
Accumulated other comprehensive loss, net of tax	(164,367)	(153,169)
Total shareholders’ equity	1,163,051	1,159,682
Total liabilities and shareholders’ equity	$ 9,813,767	$ 9,910,089

XML

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Available-for-sale, allowance for credit loss	$ 2,321,608	$ 2,384,325
Held-to-maturity, allowance for credit loss	$ 0	$ 0
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	33,168,770	33,268,102
Common stock, shares outstanding (in shares)	33,168,770	33,268,102

XML

Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Interest and dividend income:
Loans, including fees	$ 96,485	$ 82,415
Investments:
Taxable securities	17,449	18,622
Tax exempt securities	917	1,307
Dividends	380	304
Interest bearing cash at Federal Reserve and other banks	186	259
Total interest and dividend income	115,417	102,907
Interest expense:
Deposits	23,529	5,145
Other borrowings	7,378	2,809
Junior subordinated debt	1,774	1,617
Total interest expense	32,681	9,571
Net interest income	82,736	93,336
Provision for credit losses	4,305	4,195
Net interest income after credit loss provision	78,431	89,141
Non-interest income:
Service charges and fees	12,637	11,197
Gain on sale of loans	261	206
Loss on sale of investment securities	0	(164)
Asset management and commission income	1,128	934
Increase in cash value of life insurance	803	802
Other	942	660
Total non-interest income	15,771	13,635
Non-interest expense:
Salaries and related benefits	34,304	32,563
Other	22,200	21,231
Total non-interest expense	56,504	53,794
Income before provision for income taxes	37,698	48,982
Provision for income taxes	9,949	13,149
Net income	$ 27,749	$ 35,833
Per share data:
Basic earnings per share (in USD per share)	$ 0.83	$ 1.08
Diluted earnings per share (in USD per share)	0.83	1.07
Dividend per share (in USD per share)	$ 0.33	$ 0.30

XML

Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 27,749	$ 35,833
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on available for sale securities arising during the period	(11,198)	24,444
Change in minimum pension liability	0	0
Change in joint beneficiary agreements	0	0
Other comprehensive income (loss)	(11,198)	24,444
Comprehensive income	$ 16,551	$ 60,277

XML

Condensed Consolidated Statements of Changes In Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2022		33,331,513
Beginning balance at Dec. 31, 2022	$ 1,046,416	$ 697,448	$ 542,873	$ (193,905)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	35,833		35,833
Other comprehensive income (loss)	24,444			24,444
Stock options exercised (in shares)		4,000
Stock options exercised	78	$ 78
RSU vesting	728	728
PSU vesting	313	$ 313
RSUs released (in shares)		22,118
Repurchase of common stock (in shares)		(162,381)
Repurchase of common stock	(7,595)	$ (3,399)	(4,196)
Dividends paid	(9,972)		(9,972)
Ending balance (in shares) at Mar. 31, 2023		33,195,250
Ending balance at Mar. 31, 2023	$ 1,090,245	$ 695,168	564,538	(169,461)
Beginning balance (in shares) at Dec. 31, 2023	33,268,102	33,268,102
Beginning balance at Dec. 31, 2023	$ 1,159,682	$ 697,349	615,502	(153,169)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	27,749		27,749
Other comprehensive income (loss)	$ (11,198)			(11,198)
Stock options exercised (in shares)	0
RSU vesting	$ 767	767
PSU vesting	431	$ 431
Repurchase of common stock (in shares)		(99,332)
Repurchase of common stock	(3,408)	$ (2,083)	(1,325)
Dividends paid	$ (10,972)		(10,972)
Ending balance (in shares) at Mar. 31, 2024	33,168,770	33,168,770
Ending balance at Mar. 31, 2024	$ 1,163,051	$ 696,464	$ 630,954	$ (164,367)

XML

Condensed Consolidated Statements of Changes In Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Common Stock
Dividends paid, per share (in USD per share)	$ 0.33	$ 0.30

XML

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities:
Net income	$ 27,749	$ 35,833
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of premises and equipment, and amortization	1,508	1,566
Amortization of intangible assets	1,030	1,656
Provision for credit losses on loans	4,015	4,195
Amortization of investment securities premium, net	6	174
Loss on sale of investment securities	0	164
Originations of loans for resale	(10,858)	(6,281)
Proceeds from sale of loans originated for resale	10,151	8,058
Gain on sale of loans	(261)	(206)
Change in fair market value of mortgage servicing rights	(11)	209
Provision for losses on foreclosed assets	262	0
Gain on transfer of loans to foreclosed assets	(38)	0
Operating lease expense payments	(1,568)	(1,653)
Loss on disposal of fixed assets	5	0
Increase in cash value of life insurance	(803)	(802)
(Gain) loss on marketable equity securities	28	(42)
Equity compensation vesting expense	1,198	1,041
Change in:
Interest receivable	985	468
Interest payable	1,779	476
Amortization of operating lease ROUA	1,499	1,739
Other assets and liabilities, net	(11,596)	(7,640)
Net cash from operating activities	25,080	38,955
Investing activities:
Proceeds from maturities of securities available for sale	62,770	56,905
Proceeds from maturities of securities held to maturity	5,625	8,842
Proceeds from sale of available for sale securities	0	24,160
Loan origination and principal collections, net	(7,379)	26,558
Purchases of premises and equipment	(1,028)	(1,213)
Net cash from investing activities	59,988	115,252
Financing activities:
Net change in deposits	153,620	(303,148)
Net change in other borrowings	(240,173)	169,535
Repurchase of common stock, net of option exercises	(3,408)	(7,595)
Dividends paid	(10,972)	(9,972)
Exercise of stock options	0	78
Net cash used by financing activities	(100,933)	(151,102)
Net change in cash and cash equivalents	(15,865)	3,105
Cash and cash equivalents, beginning of period	98,701	107,230
Cash and cash equivalents, end of period	82,836	110,335
Supplemental disclosure of noncash activities:
Unrealized gain (loss) on securities available for sale	(15,898)	34,540
Market value of shares tendered in-lieu of cash to pay for exercise of options and/or related taxes	0	621
Obligations incurred in conjunction with leased assets	1,327	4,484
Loans transferred to foreclosed assets	12	0
Supplemental disclosure of cash flow activity:
Cash paid for interest expense	30,902	9,095
Cash paid for income taxes	$ 0	$ 0

XML

Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Description of Business and Basis of Presentation

TriCo Bancshares (the “Company” or “we”) is a California corporation organized to act as a bank holding company for Tri Counties Bank (the “Bank”). The Company and the Bank are headquartered in Chico, California. The Bank is a California-chartered bank that is engaged in the general commercial banking business in 33 California counties. The consolidated financial statements are prepared in accordance with accounting policies generally accepted in the United States of America and general practices in the banking industry. All adjustments necessary for a fair presentation of these consolidated financial statements have been included and are of a normal and recurring nature. The financial statements include the accounts of the Company. All inter-company accounts and transactions have been eliminated in consolidation.

The Company has five capital subsidiary business trusts (collectively, the “Capital Trusts”) that issued trust preferred securities, including two organized by the Company and three acquired with the acquisition of North Valley Bancorp. For financial reporting purposes, the Company’s investments in the Capital Trusts of $1.8 million are accounted for under the equity method and, accordingly, are not consolidated and are included in other assets on the consolidated balance sheet. See the footnote Junior Subordinated Debt for additional information on borrowings outstanding.

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (the “2023 Annual Report”). The Company believes that the disclosures made are adequate to make the information not misleading.

Segment and Significant Group Concentration of Credit Risk

The Company grants agribusiness, commercial, consumer, and residential loans to customers located throughout California. The Company has a diversified loan portfolio within the business segments located in this geographical area. The Company currently classifies all its operation into one business segment that it denotes as community banking.

Geographical Descriptions

For the purpose of describing the geographical location of the Company’s operations, the Company has defined northern California as that area of California north of, and including, Stockton to the east and San Jose to the west; central California as that area of the state south of Stockton and San Jose, to and including, Bakersfield to the east and San Luis Obispo to the west; and southern California as that area of the state south of Bakersfield and San Luis Obispo.

Reclassification

Some items in the prior year consolidated financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior year net income or shareholders’ equity.

Cash and Cash Equivalents

Net cash flows are reported for loan and deposit transactions and other borrowings. For purposes of the consolidated statement of cash flows, cash, due from banks with original maturities less than 90 days, interest-earning deposits in other banks, and Federal funds sold are considered to be cash equivalents.

Allowance for Credit Losses - Securities

The Company measures expected credit losses on HTM debt securities on a collective basis by major security type, then further disaggregated by sector and bond rating. Accrued interest receivable on HTM debt securities was considered insignificant at March 31, 2024 and December 31, 2023 and is therefore excluded from the estimate of credit losses. The estimate of expected credit losses considers historical credit loss information that is adjusted for current conditions and reasonable and supportable forecasts based on current and expected changes in credit ratings and default rates. Based on the implied guarantees of the U. S. Government or its agencies related to certain of these investment securities, and the absence of any historical or expected losses, substantially all qualify for a zero loss

assumption. Management has separately evaluated its HTM investment securities from obligations of state and political subdivisions utilizing the historical loss data represented by similar securities over a period of time spanning nearly 50 years. As a result of this evaluation, management determined that the expected credit losses associated with these securities is not significant for financial reporting purposes and therefore, no allowance for credit losses has been recognized.

The Company evaluates AFS debt securities in an unrealized loss position to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or noncredit-related factors. Any impairment that is not credit related is recognized in other comprehensive income, net of applicable taxes. Credit-related impairment is recognized as an allowance for credit losses on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings. Both the allowance for credit losses and the adjustment to net income may be reversed if conditions change. However, if the Company intends to sell an impaired available for sale debt security or more likely than not will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount is recognized in earnings with a corresponding adjustment to the security's amortized cost basis. In evaluating available for sale debt securities in unrealized loss positions for impairment and the criteria regarding its intent or requirement to sell such securities, the Company considers the extent to which fair value is less than amortized cost, whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuers' financial condition, among other factors. Changes in the allowance for credit losses are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the ACL when management believes the uncollectability of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. No security credit losses were recognized during the three month periods ended March 31, 2024 and 2023, respectively.

Loans

Loans that management has the intent and ability to hold until maturity or payoff are reported at principle amount outstanding, net of deferred loan fees and costs. Loans are placed in nonaccrual status when reasonable doubt exists as to the full, timely collection of interest or principal, or a loan becomes contractually past due by 90 days or more with respect to interest or principal and is not well secured and in the process of collection. When a loan is placed on nonaccrual status, all interest previously accrued but not collected is reversed against interest income. Income on such loans is then recognized only to the extent that cash is received and where the future collection of principal is considered probable. Interest accruals are resumed on such loans only when they are brought fully current with respect to interest and principal and when, in the judgment of Management, the loan is estimated to be fully collectible as to both principal and interest. Accrued interest receivable is not included in the calculation of the allowance for credit losses.

Allowance for Credit Losses - Loans

The ACL is a valuation account that is deducted from the loan's amortized cost basis to present the net amount expected to be collected on the loans. Loans are charged-off against the allowance when management believes the recorded loan balance is confirmed as uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Regardless of the determination that a charge-off is appropriate for financial accounting purposes, the Company manages its loan portfolio by continually monitoring, where possible, a borrower's ability to pay through the collection of financial information, delinquency status, borrower discussion and the encouragement to repay in accordance with the original contract or modified terms, if appropriate.

Management estimates the allowance balance using relevant information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. Historical credit loss experience provides the basis for the estimation of expected credit losses, which captures loan balances as of a point in time to form a cohort, then tracks the respective losses generated by that cohort of loans over the remaining life. The Company identified and accumulated loan cohort historical loss data beginning with the fourth quarter of 2008 and through the current period. In situations where the Company's actual loss history was not statistically relevant, the loss history of peers, defined as financial institutions with assets greater than three billion and less than ten billion, were utilized to create a minimum loss rate. Adjustments to historical loss information are made for differences in relevant current loan-specific risk characteristics, such as historical timing of losses relative to the loan origination. In its loss forecasting framework, the Company incorporates forward-looking information through the use of macroeconomic scenarios applied over the forecasted life of the assets. These macroeconomic scenarios incorporate variables that have historically been key drivers of increases and decreases in credit losses. These variables include, but are not limited to changes in environmental conditions, such as California unemployment rates, household debt levels, changes in corporate debt yields, and U.S. gross domestic product.

PCD assets are assets acquired at a discount that is due, in part, to credit quality deterioration since origination. PCD assets are accounted for in accordance with ASC 326-20 and are initially recorded at fair value, by taking the sum of the present value of expected future cash flows and an allowance for credit losses, at acquisition. The allowance for credit losses for PCD assets is recorded through a gross-up of reserves on the balance sheet, while the allowance for acquired non-PCD assets, such as loans, is recorded through the provision for credit losses on the income statement, consistent with originated loans. Subsequent to acquisition, the allowance for credit losses for PCD loans will generally follow the same forward-looking estimation, provision, and charge-off process as non-PCD acquired and originated loans.

The Company has identified the following portfolio segments to evaluate and measure the allowance for credit loss:

Commercial real estate:

Commercial real estate - Non-owner occupied: These commercial properties typically consist of buildings which are leased to others for their use and rely on rents as the primary source of repayment. Property types are predominantly office, retail, or light industrial but the portfolio also has some special use properties. As such, the risk of loss associated with these properties is primarily driven by general

economic changes or changes in regional economies and the impact of such on a tenant’s ability to pay. Ultimately this can affect occupancy, rental rates, or both. Additional risk of loss can come from new construction resulting in oversupply, the costs to hold or operate the property, or changes in interest rates. The terms on these loans at origination typically have maturities from five to ten years with amortization periods from fifteen to thirty years.

Commercial real estate - Owner occupied: These credits are primarily susceptible to changes in the financial condition of the business operated by the property owner. This may be driven by changes in, among other things, industry challenges, factors unique to the operating geography of the borrower, change in the individual fortunes of the business owner, general economic conditions and changes in business cycles. When default is driven by issues related specifically to the business owner, collateral values tend to provide better repayment support and may result in little or no loss. Alternatively, when default is driven more by general economic conditions, the underlying collateral may have devalued more and thus result in larger losses in the event of default. The terms on these loans at origination typically have maturities from five to ten years with amortization periods from fifteen to thirty years.

Multifamily: These commercial properties are generally comprised of more than four rentable units, such as apartment buildings, with each unit intended to be occupied as the primary residence for one or more persons. Multifamily properties are also subject to changes in general or regional economic conditions, such as unemployment, ultimately resulting in increased vacancy rates or reduced rents or both. In addition, new construction can create an oversupply condition and market competition resulting in increased vacancy, reduced market rents, or both. Due to the nature of their use and the greater likelihood of tenant turnover, the management of these properties is more intensive and therefore is more critical to the preclusion of loss.

Farmland: While the Company has few loans that were originated for the purpose of the acquisition of these commercial properties, loans secured by farmland represent unique risks that are associated with the operation of an agricultural businesses. The valuation of farmland can vary greatly over time based on the property's access to resources including but not limited to water, crop prices, foreign exchange rates, government regulation or restrictions, and the nature of ongoing capital investment needed to maintain the quality of the property. Loans secured by farmland typically represent less risk to the Company than other agriculture loans as the real estate typically provides greater support in the event of default or need for longer term repayment.

Consumer loans:

SFR 1-4 1st DT Liens: The most significant drivers of potential loss within the Company's residential real estate portfolio relate general, regional, or individual changes in economic conditions and their effect on employment and borrowers cash flow. Risk in this portfolio is best measured by changes in borrower credit score and loan-to-value. Loss estimates are based on the general movement in credit score, economic outlook and its effects on employment and the value of homes and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate.

SFR HELOCs and Junior Liens: Similar to residential real estate term loans, HELOCs and junior liens performance is also primarily driven by borrower cash flows based on employment status. However, HELOCs carry additional risks associated with the fact that most of these loans are secured by a deed of trust in a position that is junior to the primary lien holder. Furthermore, the risk that as the borrower's financial strength deteriorates, the outstanding balance on these credit lines may increase as they may only be canceled by the Company if certain limited criteria are met. In addition to the allowance for credit losses maintained as a percent of the outstanding loan balance, the Company maintains additional reserves for the unfunded portion of the HELOC.

Other: The majority of consumer loans are secured by automobiles, with the remainder primarily unsecured revolving debt (credit cards). These loans are susceptible to three primary risks; non-payment due to income loss, over-extension of credit and, when the borrower is unable to pay, shortfall in collateral value, if any. Typically non-payment is due to loss of job and will follow general economic trends in the marketplace driven primarily by rises in the unemployment rate. Loss of collateral value can be due to market demand shifts, damage to collateral itself or a combination of those factors. Credit card loans are unsecured and while collection efforts are pursued in the event of default, there is typically limited opportunity for recovery. Loss estimates are based on the general movement in credit score, economic outlook and its effects on employment and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate.

Commercial and Industrial:

Repayment of these loans is primarily based on the cash flow of the borrower, and secondarily on the underlying collateral provided by the borrower. A borrower's cash flow may be unpredictable, and collateral securing these loans may fluctuate in value. Most often, collateral includes accounts receivable, inventory, or equipment. Collateral securing these loans may depreciate over time, may be difficult to appraise, may be illiquid and may fluctuate in value based on the success of the business. Actual and forecast changes in gross domestic product are believed to be corollary to losses associated with these credits.

Construction:

While secured by real estate, construction loans represent a greater level of risk than term real estate loans due to the nature of the additional risks associated with the not only the completion of construction within an estimated time period and budget, but also the need to either sell the building or reach a level of stabilized occupancy sufficient to generate the cash flows necessary to support debt service and operating costs. The Company seeks to mitigate the additional risks associated with construction lending by requiring borrowers to comply with lower loan to value ratios and additional covenants as well as strong tertiary support of guarantors. The loss forecasting model applies the historical rate of loss for similar loans over the expected life of the asset as adjusted for macroeconomic factors.

Agriculture Production:

Repayment of agricultural loans is dependent upon successful operation of the agricultural business, which is greatly impacted by factors outside the control of the borrower. These factors include adverse weather conditions, including access to water, that may impact crop yields, loss of livestock due to disease or other factors, declines in market prices for agriculture products, changes in foreign exchange, and the impact of government regulations. In addition, many farms are dependent on a limited number of key individuals whose injury or death may significantly affect the successful operation of the business. Consequently, agricultural production loans may involve a greater degree of risk than other types of loans.

Leases:

The loss forecasting model applies the historical rate of loss for similar loans over the expected life of the asset. Leases typically represent an elevated level of credit risk as compared to loans secured by real estate as the collateral for leases is often subject to a more rapid rate of depreciation or depletion. The ultimate severity of loss is impacted by the type of collateral securing the exposure, the size of the exposure, the borrower’s industry sector, any guarantors and the geographic market. Assumptions of expected loss are conditioned to the economic outlook and the other variables discussed above.

Unfunded commitments:

The estimated credit losses associated with these unfunded lending commitments is calculated using the same models and methodologies noted above and incorporate utilization assumptions at time of default. The reserve for unfunded commitments is maintained on the consolidated balance sheet in other liabilities.

Accounting Standards Recently Issued or Adopted

FASB issued ASU 2024-02, Codification Improvements— Amendments to Remove References to the Concepts Statements. This ASU facilitates Codification updates for technical corrections such as conforming amendments, clarifications to guidance, simplifications to wording or the structure of guidance, and other minor improvements. The resulting amendments are referred to as Codification improvements. The amendments in this Update are not intended to result in significant accounting change for most entities. However, the Board recognizes that changes to that guidance may result in accounting change for some entities. Therefore, the amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2024. The adoption of this accounting guidance is not expected to have a material impact on the Company’s consolidated financial statements.

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Investment Securities

3 Months Ended

Mar. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Investment Securities

The amortized cost, estimated fair values and allowance for credit losses of investments in debt securities are summarized in the following tables:

	March 31, 2024
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for Credit Losses		Estimated Fair Value
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	1,349,679	$	1	$	(179,488)	$	—	$	1,170,192
Obligations of states and political subdivisions	262,777		132		(28,732)		—		234,177
Corporate bonds	6,175		—		(429)		—		5,746
Asset backed securities	362,877		623		(3,827)		—		359,673
Non-agency collateralized mortgage obligations	340,100		—		(36,000)		—		304,100
Total debt securities available for sale	$	2,321,608	$	756	$	(248,476)	$	—	$	2,073,888
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	125,131	$	1	$	(9,239)	—		115,893
Obligations of states and political subdivisions	2,680		—		(45)		—		2,635
Total debt securities held to maturity	$	127,811	$	1	$	(9,284)	$	—	$	118,528

	December 31, 2023
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for Credit Losses		Estimated Fair Value
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	1,386,772	$	2	$	(165,037)	$	—	$	1,221,737
Obligations of states and political subdivisions	262,879		268		(26,772)		—		236,375
Corporate bonds	6,173		—		(571)		—		5,602
Asset backed securities	359,214		255		(4,188)		—		355,281
Non-agency collateralized mortgage obligations	369,287		—		(35,778)		—		333,509
Total debt securities available for sale	$	2,384,325	$	525	$	(232,346)	$	—	$	2,152,504
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	130,823	$	—	$	(8,331)	$	—	$	122,492
Obligations of states and political subdivisions	2,671		6		(43)		—		2,634
Total debt securities held to maturity	$	133,494	$	6	$	(8,374)	$	—	$	125,126

There were no sales of investment securities during the three months ended March 31, 2024. Proceeds from the sale of investment securities totaled $24.2 million for the three months ended March 31, 2023, resulting in gross realized losses of $0.2 million. Investment securities with an aggregate carrying value of $741.5 million and $702.2 million at March 31, 2024 and December 31, 2023, respectively, were pledged as collateral for specific borrowings, lines of credit or local agency deposits.

The amortized cost and estimated fair value of debt securities at March 31, 2024 by contractual maturity are shown below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. At March 31, 2024, obligations of U.S. government corporations and agencies with a cost basis totaling $1.3 billion consist almost entirely of residential real estate mortgage-backed securities whose contractual maturity, or principal repayment, will follow the repayment of the underlying mortgages. For purposes of the following table, the entire outstanding balance of these mortgage-backed securities issued by U.S. government corporations and agencies is categorized based on final maturity date. At March 31, 2024, the Company estimates the average remaining life of these mortgage-backed securities issued by U.S. government corporations and agencies to be approximately 7.25 years. Average remaining life is defined as the time span after which the principal balance has been reduced by half.

As of March 31, 2024, the contractual final maturity for available for sale and held to maturity investment securities is as follows:

Debt Securities	Available for Sale				Held to Maturity
(in thousands)	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year	$	51,718	$	51,226	$	—	$	—
Due after one year through five years	49,150		46,062		5,396		5,206
Due after five years through ten years	371,852		358,110		92,951		86,475
Due after ten years	1,848,888		1,618,490		29,464		26,847
Totals	$	2,321,608	$	2,073,888	$	127,811	$	118,528

Gross unrealized losses on debt securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were as follows:

March 31, 2024:	Less than 12 months				12 months or more				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	442	$	(3)	$	1,169,687	$	(179,485)	$	1,170,129	$	(179,488)
Obligations of states and political subdivisions	6,760		(152)		219,908		(28,580)		226,668		(28,732)
Corporate bonds	—		—		5,746		(429)		5,746		(429)
Asset backed securities	94,861		(350)		146,838		(3,477)		241,699		(3,827)
Non-agency collateralized mortgage obligations	43,223		(523)		260,877		(35,477)		304,100		(36,000)
Total debt securities available for sale	$	145,286	$	(1,028)	$	1,803,056	$	(247,448)	$	1,948,342	$	(248,476)
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	—	$	—	$	115,660	$	(9,239)	$	115,660	$	(9,239)
Obligations of states and political subdivisions	1,618		(8)		1,018		(37)		2,636		(45)
Total debt securities held to maturity	$	1,618	$	(8)	$	116,678	$	(9,276)	$	118,296	$	(9,284)

December 31, 2023:	Less than 12 months				12 months or more				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	224	$	—	$	1,221,320	$	(165,037)	$	1,221,544	$	(165,037)
Obligations of states and political subdivisions	6,229		(75)		216,497		(26,697)		222,726		(26,772)
Corporate bonds	—		—		5,602		(571)		5,602		(571)
Asset backed securities	15,928		(93)		264,731		(4,095)		280,659		(4,188)
Non-agency collateralized mortgage obligations	44,276		(583)		289,233		(35,195)		333,509		(35,778)
Total debt securities available for sale	$	66,657	$	(751)	$	1,997,383	$	(231,595)	$	2,064,040	$	(232,346)
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	—	$	—	$	122,259	$	(8,331)	$	122,259	$	(8,331)
Obligations of states and political subdivisions	—		—		1,012		(43)		1,012		(43)
Total debt securities held to maturity	$	—	$	—	$	123,271	$	(8,374)	$	123,271	$	(8,374)

Obligations of U.S. government agencies: The unrealized losses on investments in obligations of U.S. government agencies are caused by interest rate increases and illiquidity. The contractual cash flows of these securities are guaranteed by U.S. Government Sponsored Entities (principally Fannie Mae and Freddie Mac). It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses recorded. At March 31, 2024, 168 debt securities representing obligations of U.S. government agencies had unrealized losses with aggregate depreciation of 13.29% from the Company’s amortized cost basis.

Obligations of states and political subdivisions: The unrealized losses on investments in obligations of states and political subdivisions were caused by increases in required yields by investors in these types of securities. It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses recorded as of March 31, 2024. At March 31, 2024, 157 debt securities representing obligations of states and political subdivisions had unrealized losses with aggregate depreciation of 11.25% from the Company’s amortized cost basis.

Corporate bonds: The unrealized losses on investments in corporate bonds were caused by increases in required yields by investors in these types of securities. It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses recorded as of March 31, 2024. At March 31, 2024, 6 debt securities representing corporate bonds had unrealized losses with aggregate depreciation of 6.95% from the Company’s amortized cost basis.

Asset backed securities: The unrealized losses on investments in asset backed securities were caused by increases in required yields by investors for these types of securities. At the time of purchase, each of these securities was rated AA or AAA and through March 31, 2024

has not experienced any deterioration in credit rating. At March 31, 2024, 29 asset backed securities had unrealized losses with aggregate depreciation of 1.56% from the Company’s amortized cost basis. The Company continues to monitor these securities for changes in credit rating or other indications of credit deterioration. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses recorded as of March 31, 2024.

Non-agency collateralized mortgage obligations: The unrealized losses on investments in asset backed securities were caused by increases in required yields by investors in these types of securities. It is expected that the securities would not be settled at a price less than the amortized cost of the investment. Because management believes the decline in fair value is attributable to changes in interest rates and not credit quality, and because the Company does not intend to sell and more likely than not will not be required to sell, there is no impairment on these securities and there has been no allowance for credit losses as of and for the year ended March 31, 2024. At March 31, 2024, 22 asset backed securities had unrealized losses with aggregate depreciation of 10.59% from the Company’s amortized cost basis.

The Company monitors credit quality of debt securities held-to-maturity through the use of credit rating. The Company monitors the credit rating on a monthly basis. The following table summarizes the amortized cost of debt securities held-to-maturity at the dates indicated, aggregated by credit quality indicator:

	March 31, 2024				December 31, 2023
(in thousands)	AAA/AA/A		BBB/BB/B		AAA/AA/A		BBB/BB/B
Obligations of U.S. government agencies	$	125,131	$	—	$	130,823	$	—
Obligations of states and political subdivisions	2,680		—		2,671		—
Total debt securities held to maturity	$	127,811	$	—	$	133,494	$	—

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Loans

3 Months Ended

Mar. 31, 2024

Receivables [Abstract]

Loans

Loans

A summary of loan balances at amortized cost are as follows:

(in thousands)	March 31, 2024		December 31, 2023
Commercial real estate:
CRE non-owner occupied	$	2,220,568	$	2,217,806
CRE owner occupied	974,968		956,440
Multifamily	982,290		949,502
Farmland	265,942		271,054
Total commercial real estate loans	4,443,768		4,394,802
Consumer:
SFR 1-4 1st DT liens	883,520		883,438
SFR HELOCs and junior liens	345,223		356,813
Other	75,014		73,017
Total consumer loans	1,303,757		1,313,268
Commercial and industrial	549,780		586,455
Construction	348,981		347,198
Agriculture production	145,159		144,497
Leases	9,250		8,250
Total loans, net of deferred loan fees and discounts	$	6,800,695	$	6,794,470
Total principal balance of loans owed, net of charge-offs	$	6,839,589	$	6,834,935
Unamortized net deferred loan fees	(15,588)		(15,826)
Discounts to principal balance of loans owed, net of charge-offs	(23,306)		(24,639)
Total loans, net of unamortized deferred loan fees and discounts	$	6,800,695	$	6,794,470
Allowance for credit losses on loans	$	(124,394)	$	(121,522)

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Allowance for Credit Losses

3 Months Ended

Mar. 31, 2024

Allowance For Loan And Lease Losses [Abstract]

Allowance for Credit Losses

Allowance for Credit Losses

For the periods indicated, the following tables summarize the activity in the allowance for credit losses on loans which is recorded as a contra asset, and the reserve for unfunded commitments which is recorded on the balance sheet within other liabilities:

	Allowance for credit losses – Three months ended March 31, 2024
(in thousands)	Beginning Balance		Charge-offs		Recoveries		Provision (benefit)		Ending  Balance
Commercial real estate:
CRE non-owner occupied	$	35,077	$	—	$	—	$	1,610	$	36,687
CRE owner occupied	15,081		—		—		1,030		16,111
Multifamily	14,418		—		—		1,264		15,682
Farmland	4,288		—		—		(593)		3,695
Total commercial real estate loans	68,864		—		—		3,311		72,175
Consumer:
SFR 1-4 1st DT liens	14,009		(26)		—		157		14,140
SFR HELOCs and junior liens	10,273		(32)		49		(348)		9,942
Other	3,171		(250)		40		398		3,359
Total consumer loans	27,453		(308)		89		207		27,441
Commercial and industrial	12,750		(130)		22		(775)		11,867
Construction	8,856		—		—		306		9,162
Agriculture production	3,589		(837)		21		935		3,708
Leases	10		—		—		31		41
Allowance for credit losses on loans	121,522		(1,275)		132		4,015		124,394
Reserve for unfunded commitments	5,850		—		—		290		6,140
Total	$	127,372	$	(1,275)	$	132	$	4,305	$	130,534

In determining the allowance for credit losses, accruing loans with similar risk characteristics are generally evaluated collectively. To estimate expected losses the Company generally utilizes historical loss trends and the remaining contractual lives of the loan portfolios to determine estimated credit losses through a reasonable and supportable forecast period. Individual loan credit quality indicators including loan grade and borrower repayment performance have been statistically correlated with historical credit losses and various econometrics, including California unemployment, gross domestic product, and corporate bond yields. Model forecasts may be adjusted for inherent limitations or biases that have been identified through independent validation and back-testing of model performance to actual realized results.

The Company utilizes a forecast period of approximately eight quarters and obtains the forecast data from publicly available sources as of the balance sheet date. This forecast data continues to evolve and includes improving shifts in the magnitude of changes for both the unemployment and GDP factors leading up to the balance sheet date. Despite continued declines on a year over year comparative basis, core inflation remains elevated from wage pressures, and higher living costs such as housing, energy and food prices. Management notes the rapid intervals of rate increases by the Federal Reserve may create repricing risk for certain borrowers and continued inversion of the yield curve, creates informed expectations of the US potentially entering a recession within 12 months. While projected cuts in interest rates from the Federal Reserve during 2024 may improve this outlook, the uncertainty associated with the extent and timing of these potential reductions has inhibited a change to forecasted reserve levels. As a result, management continues to believe that certain credit weaknesses are likely present in the overall economy and that it is appropriate to maintain a reserve level that incorporates such risk factors.

For the periods indicated, the following tables summarize the activity in the allowance for credit losses on loans which is recorded as a contra asset, and the reserve for unfunded commitments which is recorded on the balance sheet within other liabilities:

	Allowance for credit losses – Year ended December 31, 2023
(in thousands)	Beginning Balance		Charge-offs		Recoveries		Provision (benefit)		Ending Balance
Commercial real estate:
CRE non-owner occupied	$	30,962	$	—	$	—	$	4,115	$	35,077
CRE owner occupied	14,014		(3,637)		2		4,702		15,081
Multifamily	13,132		—		—		1,286		14,418
Farmland	3,273		—		—		1,015		4,288
Total commercial real estate loans	61,381		(3,637)		2		11,118		68,864
Consumer:
SFR 1-4 1st DT liens	11,268		—		262		2,479		14,009
SFR HELOCs and junior liens	11,413		(66)		723		(1,797)		10,273
Other	1,958		(558)		190		1,581		3,171
Total consumer loans	24,639		(624)		1,175		2,263		27,453
Commercial and industrial	13,597		(3,879)		316		2,716		12,750
Construction	5,142		—		—		3,714		8,856
Agriculture production	906		—		34		2,649		3,589
Leases	15		—		—		(5)		10
Allowance for credit losses on loans	105,680		(8,140)		1,527		22,455		121,522
Reserve for unfunded commitments	4,315		—		—		1,535		5,850
Total	$	109,995	$	(8,140)	$	1,527	$	23,990	$	127,372

	Allowance for credit losses – Three months ended March 31, 2023
(in thousands)	Beginning Balance		Charge-offs		Recoveries		Provision (benefit)		Ending Balance
Commercial real estate:
CRE non-owner occupied	$	30,962	$	—	$	—	$	2,001	$	32,963
CRE owner occupied	14,014		—		—		545		14,559
Multifamily	13,132		—		—		741		13,873
Farmland	3,273		—		—		269		3,542
Total commercial real estate loans	61,381		—		—		3,556		64,937
Consumer:
SFR 1-4 1st DT liens	11,268		—		—		652		11,920
SFR HELOCs and junior liens	11,413		(42)		65		(522)		10,914
Other	1,958		(142)		51		195		2,062
Total consumer loans	24,639		(184)		116		325		24,896
Commercial and industrial	13,597		(1,574)		53		(7)		12,069
Construction	5,142		—		—		513		5,655
Agriculture production	906		—		1		(74)		833
Leases	15		—		—		2		17
Allowance for credit losses on loans	105,680		(1,758)		170		4,315		108,407
Reserve for unfunded commitments	4,315		—		—		(120)		4,195
Total	$	109,995	$	(1,758)	$	170	$	4,195	$	112,602

As part of the on-going monitoring of the credit quality of the Company’s loan portfolio, management tracks certain credit quality indicators including, but not limited to, trends relating to (i) the level of criticized and classified loans, (ii) net charge-offs, (iii) non-performing loans, and (iv) delinquency within the portfolio. The Company analyzes loans individually to classify the loans as to credit risk and grading. This analysis is performed annually for all outstanding balances greater than $1 million and non-homogeneous loans, such as commercial real

estate loans, unless other indicators, such as delinquency, trigger more frequent evaluation. Loans below the $1 million threshold and homogenous in nature are evaluated as needed for proper grading based on delinquency and borrower credit scores.

The Company utilizes a risk grading system to assign a risk grade to each of its loans. Loans are graded on a scale ranging from Pass to Loss. A description of the general characteristics of the risk grades is as follows:

•Pass – This grade represents loans ranging from acceptable to very little or no credit risk. These loans typically meet most if not all policy standards in regard to: loan amount as a percentage of collateral value, debt service coverage, profitability, leverage, and working capital.

•Special Mention – This grade represents “Other Assets Especially Mentioned” in accordance with regulatory guidelines and includes loans that display some potential weaknesses which, if left unaddressed, may result in deterioration of the repayment prospects for the asset or may inadequately protect the Company’s position in the future. These loans warrant more than normal supervision and attention.

•Substandard – This grade represents “Substandard” loans in accordance with regulatory guidelines. Loans within this rating typically exhibit weaknesses that are well defined to the point that repayment is jeopardized. Loss potential is, however, not necessarily evident. The underlying collateral supporting the credit appears to have sufficient value to protect the Company from loss of principal and accrued interest, or the loan has been written down to the point where this is true. There is a definite need for a well-defined workout/rehabilitation program.

•Doubtful – This grade represents “Doubtful” loans in accordance with regulatory guidelines. An asset classified as Doubtful has all the weaknesses inherent in a loan classified Substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. Pending factors include proposed merger, acquisition, or liquidation procedures, capital injection, perfecting liens on additional collateral, and financing plans.

•Loss – This grade represents “Loss” loans in accordance with regulatory guidelines. A loan classified as Loss is considered uncollectible and of such little value that its continuance as a bankable asset is not warranted. This classification does not mean that the loan has absolutely no recovery or salvage value, but rather that it is not practical or desirable to defer writing off the loan, even though some recovery may be affected in the future. The portion of the loan that is graded loss should be charged off no later than the end of the quarter in which the loss is identified.

Based on the most recent analysis performed, the risk category of loans by class of loans is as follows for the period indicated:

	Term Loans Amortized Cost Basis by Origination Year – As of March 31, 2024
(in thousands)	2024		2023		2022		2021		2020		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial real estate:
CRE non-owner occupied risk ratings
Pass	$	11,059	$	184,318	$	418,964	$	282,676	$	142,738	$	983,609	$	147,552	$	—	$	2,170,916
Special Mention	—		—		1,295		—		—		34,021		2,252		—		37,568
Substandard	—		—		—		767		—		11,317		—		—		12,084
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	11,059	$	184,318	$	420,259	$	283,443	$	142,738	$	1,028,947	$	149,804	$	—	$	2,220,568
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
CRE owner occupied risk ratings
Pass	$	33,662	$	75,002	$	201,423	$	185,995	$	114,912	$	313,351	$	23,631	$	—	$	947,976
Special Mention	—		—		5,724		2,318		2,935		4,372		—		—		15,349
Substandard	—		—		2,912		7,706		—		1,025		—		—		11,643
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	33,662	$	75,002	$	210,059	$	196,019	$	117,847	$	318,748	$	23,631	$	—	$	974,968
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

	Term Loans Amortized Cost Basis by Origination Year – As of March 31, 2024
(in thousands)	2024		2023		2022		2021		2020		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial real estate:
Multifamily risk ratings
Pass	$	4,063	$	28,655	$	176,410	$	278,671	$	120,526	$	323,784	$	37,749	$	—	$	969,858
Special Mention	—		—		—		11,917		—		515		—		—		$	12,432
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	4,063	$	28,655	$	176,410	$	290,588	$	120,526	$	324,299	$	37,749	$	—	$	982,290
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
Farmland risk ratings
Pass	$	1,396	$	21,093	$	45,682	$	36,854	$	15,571	$	55,897	$	46,551	$	—	$	223,044
Special Mention	—		—		2,984		5,803		427		4,674		1,155		—		15,043
Substandard	—		101		—		8,913		—		11,904		6,937		—		27,855
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	1,396	$	21,194	$	48,666	$	51,570	$	15,998	$	72,475	$	54,643	$	—	$	265,942
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Consumer loans:
SFR 1-4 1st DT liens risk ratings
Pass	$	21,136	$	127,324	$	187,809	$	257,773	$	121,334	$	152,951	$	—	$	3,847	$	872,174
Special Mention	—		70		—		—		—		2,068		—		27		2,165
Substandard	—		268		144		1,280		1,479		5,571		—		439		9,181
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	21,136	$	127,662	$	187,953	$	259,053	$	122,813	$	160,590	$	—	$	4,313	$	883,520
Current period gross write-offs	$	—	$	26	$	—	$	—	$	—	$	—	$	—	$	—	$	26

Consumer loans:
SFR HELOCs and Junior Liens
Pass	$	278	$	—	$	—	$	—	$	—	$	89	$	330,942	$	6,527	$	337,836
Special Mention	—		—		—		—		—		—		3,416		204		3,620
Substandard	—		—		—		—		—		—		3,260		507		3,767
Doubtful/Loss																	—
Total	$	278	$	—	$	—	$	—	$	—	$	89	$	337,618	$	7,238	$	345,223
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	32	$	—	$	32

Consumer loans:
Other risk ratings
Pass	$	9,305	$	30,615	$	8,361	$	7,941	$	6,856	$	10,413	$	618	$	—	$	74,109
Special Mention	—		—		52		131		60		72		20		—		335
Substandard	—		85		177		157		3		146		2		—		570
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	9,305	$	30,700	$	8,590	$	8,229	$	6,919	$	10,631	$	640	$	—	$	75,014
Current period gross write-offs	$	76	$	67	$	—	$	60	$	28	$	15	$	4	$	—	$	250

	Term Loans Amortized Cost Basis by Origination Year – As of March 31, 2024
(in thousands)	2024		2023		2022		2021		2020		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial and industrial loans:
Commercial and industrial risk ratings
Pass	$	17,591	$	62,336	$	70,850	$	46,756	$	7,801	$	15,418	$	316,769	$	246	$	537,767
Special Mention	—		—		743		156		86		—		2,046		—		3,031
Substandard	—		—		2,082		768		83		721		5,255		73		8,982
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	17,591	$	62,336	$	73,675	$	47,680	$	7,970	$	16,139	$	324,070	$	319	$	549,780
Current period gross write-offs	$	10	$	—	$	—	$	—	$	—	$	—	$	120	$	—	$	130

Construction loans:
Construction risk ratings
Pass	$	1,979	$	71,893	$	141,212	$	89,345	$	22,345	$	10,574	$	—	$	—	$	337,348
Special Mention	—		—		11,569		—		—		—		—		—		11,569
Substandard	—		—		—		—		—		64		—		—		64
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	1,979	$	71,893	$	152,781	$	89,345	$	22,345	$	10,638	$	—	$	—	$	348,981
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Agriculture production loans:
Agriculture production risk ratings
Pass	$	586	$	1,378	$	2,857	$	1,539	$	349	$	8,897	$	120,410	$	—	$	136,016
Special Mention	—		33		—		—		—		—		6,928		—		6,961
Substandard	—		—		164		490		152		—		1,376		—		2,182
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	586	$	1,411	$	3,021	$	2,029	$	501	$	8,897	$	128,714	$	—	$	145,159
Current period gross write-offs	$	—	$	—	$	173	$	—	$	—	$	—	$	664	$	—	$	837

Leases:
Lease risk ratings
Pass	$	9,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$9,250
Special Mention	—		—		—		—		—		—		—		—		—
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	9,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	9,250
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Total loans outstanding:
Risk ratings
Pass	$	110,305	$	602,614	$	1,253,568	$	1,187,550	$	552,432	$	1,874,983	$	1,024,222	$	10,620	$	6,616,294
Special Mention	—		103		22,367		20,325		3,508		45,722		15,817		231		108,073
Substandard	—		454		5,479		20,081		1,717		30,748		16,830		1,019		76,328
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	110,305	$	603,171	$	1,281,414	$	1,227,956	$	557,657	$	1,951,453	$	1,056,869	$	11,870	$	6,800,695
Current period gross write-offs	$	86	$	93	$	173	$	60	$	28	$	15	$	820	$	—	$	1,275

	Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2023
(in thousands)	2023		2022		2021		2020		2019		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial real estate:
CRE non-owner occupied risk ratings
Pass	$	180,326	$	413,863	$	290,210	$	137,656	$	206,408	$	792,875	$	141,686	$	—	$	2,163,024
Special Mention	—		1,329		—		5,281		17,093		14,174		1,247		—		39,124
Substandard	—		—		767		—		2,139		12,540		212		—		15,658
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	180,326	$	415,192	$	290,977	$	142,937	$	225,640	$	819,589	$	143,145	$	—	$	2,217,806
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
CRE owner occupied risk ratings
Pass	$	71,288	$	196,915	$	190,384	$	118,457	$	59,220	$	268,990	$	23,740	$	—	$	928,994
Special Mention	—		5,773		1,513		2,754		703		2,678		—		—		13,421
Substandard	—		2,972		7,835		—		111		3,107		—		—		14,025
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	71,288	$	205,660	$	199,732	$	121,211	$	60,034	$	274,775	$	23,740	$	—	$	956,440
Current period gross write-offs	$	—	$	—	$	—	$	1,380	$	—	$	2,228	$	29	$	—	$	3,637

Commercial real estate:
Multifamily risk ratings
Pass	$	28,445	$	177,032	$	279,660	$	89,106	$	104,108	$	225,446	$	33,470	$	—	$	937,267
Special Mention	—		—		11,914		—		—		321		—		—		12,235
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	28,445	$	177,032	$	291,574	$	89,106	$	104,108	$	225,767	$	33,470	$	—	$	949,502
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
Farmland risk ratings
Pass	$	21,729	$	46,398	$	37,134	$	16,006	$	16,780	$	41,663	$	50,857	$	—	$	230,567
Special Mention	—		2,170		5,802		51		261		734		—		—		9,018
Substandard	101		813		9,053		377		—		13,266		7,859		—		31,469
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	21,830	$	49,381	$	51,989	$	16,434	$	17,041	$	55,663	$	58,716	$	—	$	271,054
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Consumer loans:
SFR 1-4 1st DT liens risk ratings
Pass	$	135,741	$	189,920	$	260,870	$	125,081	$	29,568	$	126,975	$	—	$	4,079	$	872,234
Special Mention	71		—		—		—		—		1,948		—		27		2,046
Substandard	—		140		1,296		1,490		531		5,265		—		436		9,158
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	135,812	$	190,060	$	262,166	$	126,571	$	30,099	$	134,188	$	—	$	4,542	$	883,438
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

	Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2023
(in thousands)	2023		2022		2021		2020		2019		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Consumer loans:
SFR HELOCs and Junior Liens
Pass	$	297	$	—	$	—	$	—	$	—	$	96	$	343,698	$	6,444	$	350,535
Special Mention	—		—		—		—		—		—		2,274		138		2,412
Substandard	—		—		—		—		—		—		3,212		654		3,866
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	297	$	—	$	—	$	—	$	—	$	96	$	349,184	$	7,236	$	356,813
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	66	$	66

Consumer loans:
Other risk ratings
Pass	$	34,441	$	9,061	$	8,908	$	7,419	$	6,825	$	4,619	$	659	$	—	$	71,932
Special Mention	21		54		203		63		54		37		18		—		450
Substandard	87		183		164		30		116		52		3		—		635
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	34,549	$	9,298	$	9,275	$	7,512	$	6,995	$	4,708	$	680	$	—	$	73,017
Current period gross write-offs	$	376	$	82	$	—	$	36	$	39	$	9	$	16	$	—	$	558

Commercial and industrial loans:
Commercial and industrial risk ratings
Pass	$	70,930	$	83,184	$	51,455	$	9,504	$	10,193	$	7,636	$	340,858	$	318	$	574,078
Special Mention	33		663		237		83		—		178		1,126		—		2,320
Substandard	—		2,014		782		103		4		762		6,318		74		10,057
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	70,963	$	85,861	$	52,474	$	9,690	$	10,197	$	8,576	$	348,302	$	392	$	586,455
Current period gross write-offs	$	153	$	287	$	240	$	2,285	$	—	$	—	$	896	$	18	$	3,879

Construction loans:
Construction risk ratings
Pass	$	56,378	$	136,294	$	85,144	$	47,632	$	4,583	$	6,518	$	—	$	—	$	336,549
Special Mention	—		10,582		—		—		—		—		—		—		10,582
Substandard	—		—		—		—		67		—		—		—		67
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	56,378	$	146,876	$	85,144	$	47,632	$	4,650	$	6,518	$	—	$	—	$	347,198
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Agriculture production loans:
Agriculture production risk ratings
Pass	$	945	$	2,749	$	1,595	$	396	$	620	$	8,491	$	114,935	$	—	$	129,731
Special Mention	—		183		543		176		—		—		11,302		—		12,204
Substandard	—		—		—		—		—		—		2,562		—		2,562
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	945	$	2,932	$	2,138	$	572	$	620	$	8,491	$	128,799	$	—	$	144,497
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

	Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2023
(in thousands)	2023		2022		2021		2020		2019		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Leases:
Lease risk ratings
Pass	$	8,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	8,250
Special Mention	—		—		—		—		—		—		—		—		—
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	8,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	8,250
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Total loans outstanding:
Risk ratings
Pass	$	608,770	$	1,255,416	$	1,205,360	$	551,257	$	438,305	$	1,483,309	$	1,049,903	$	10,841	$	6,603,161
Special Mention	125		20,754		20,212		8,408		18,111		20,070		15,967		165		103,812
Substandard	188		6,122		19,897		2,000		2,968		34,992		20,166		1,164		87,497
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	609,083	$	1,282,292	$	1,245,469	$	561,665	$	459,384	$	1,538,371	$	1,086,036	$	12,170	$	6,794,470
Current period gross write-offs	$	529	$	369	$	240	$	3,701	$	39	$	2,237	$	941	$	84	$	8,140

The following table shows the ending balance of current and past due originated loans by loan category as of the date indicated:

	Analysis of Past Due Loans - As of March 31, 2024
(in thousands)	30-59 days		60-89 days		> 90 days		Total Past Due Loans		Current		Total
Commercial real estate:
CRE non-owner occupied	$	1,182	$	232	$	3,104	$	4,518	$	2,216,050	$	2,220,568
CRE owner occupied	1,803		32		244		2,079		972,889		974,968
Multifamily	—		—		—		—		982,290		982,290
Farmland	—		—		4,608		4,608		261,334		265,942
Total commercial real estate loans	2,985		264		7,956		11,205		4,432,563		4,443,768
Consumer:
SFR 1-4 1st DT liens	141		6		534		681		882,839		883,520
SFR HELOCs and junior liens	—		282		572		854		344,369		345,223
Other	76		—		84		160		74,854		75,014
Total consumer loans	217		288		1,190		1,695		1,302,062		1,303,757
Commercial and industrial	482		352		1,270		2,104		547,676		549,780
Construction	52		—		—		52		348,929		348,981
Agriculture production	—		—		1,376		1,376		143,783		145,159
Leases	—		42		—		42		9,208		9,250
Total	$	3,736	$	946	$	11,792	$	16,474	$	6,784,221	$	6,800,695

	Analysis of Past Due Loans - As of December 31, 2023
(in thousands)	30-59 days		60-89 days		> 90 days		Total Past Due Loans		Current		Total
Commercial real estate:
CRE non-owner occupied	$	3,876	$	—	$	1,382	$	5,258	$	2,212,548	$	2,217,806
CRE owner occupied	34		—		247		281		956,159		956,440
Multifamily	—		—		—		—		949,502		949,502
Farmland	635		3,798		2,052		6485		264,569		271,054
Total commercial real estate loans	4,545		3,798		3,681		12,024		4,382,778		4,394,802
Consumer:
SFR 1-4 1st DT liens	141		1,449		490		2,080		881,358		883,438
SFR HELOCs and junior liens	16		—		623		639		356,174		356,813
Other	148		40		30		218		72,799		73,017
Total consumer loans	305		1,489		1,143		2,937		1,310,331		1,313,268
Commercial and industrial	244		605		1,654		2,503		583,952		586,455
Construction	—		—		—		—		347,198		347,198
Agriculture production	593		878		33		1,504		142,993		144,497
Leases	447		—		—		447		7,803		8,250
Total	$	6,134	$	6,770	$	6,511	$	19,415	$	6,775,055	$	6,794,470

The following table shows the ending balance of non accrual loans by loan category as of the date indicated:

	Non Accrual Loans
	As of March 31, 2024						As of December 31, 2023
(in thousands)	Non accrual with no allowance for credit losses		Total non accrual		Past due 90 days or more and still accruing		Non accrual with no allowance for credit losses		Total non accrual		Past due 90 days or more and still accruing
Commercial real estate:
CRE non-owner occupied	$	4,113	$	4,113	$	—	$	2,024	$	2,024	$	—
CRE owner occupied	3,905		3,905		—		3,994		3,994		—
Multifamily	—		—		—		—		—		—
Farmland	8,926		13,780		—		5,996		14,484		—
Total commercial real estate loans	16,944		21,798		—		12,014		20,502		—
Consumer:
SFR 1-4 1st DT liens	4,821		5,094		—		2,808		2,811		—
SFR HELOCs and junior liens	3,110		3,403		—		3,281		3,571		—
Other	64		99		—		39		105		—
Total consumer loans	7,995		8,596		—		6,128		6,487		—
Commercial and industrial	1,535		2,301		107		1,379		2,503		10
Construction	64		64		—		67		67		—
Agriculture production	311		1,376		—		—		2,322		—
Leases	—		—		—		—		—		—
Sub-total	26,849		34,135		107		19,588		31,881		10
Less: Guaranteed loans	(801)		(872)		—		(766)		(878)
Total, net	$	26,048	$	33,263	$	107	$	18,822	$	31,003	$	10

Interest income on non accrual loans that would have been recognized during the three months ended March 31, 2024 and 2023, if all such loans had been current in accordance with their original terms, totaled $0.85 million and $0.32 million, respectively. Interest income actually recognized on these originated loans during the three months ended March 31, 2024 and 2023 was $0.1 million and $0.02 million, respectively.

The following tables present the amortized cost basis of collateral dependent loans by class of loans as of the following periods:

	As of March 31, 2024
(in thousands)	Retail		Office		Warehouse		Other		Multifamily		Farmland		SFR-1st Deed		SFR-2nd Deed		Automobile/Truck		A/R and Inventory		Equipment		Total
Commercial real estate:
CRE non-owner occupied	$	2,459	$	381	$	506	$	767	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	4,113
CRE owner occupied	593		—		293		3,019		—		—		—		—		—		—		—		3,905
Multifamily	—		—		—		—		—		—		—		—		—		—		—		—
Farmland	—		—		—		—		—		13,780		—		—		—		—		—		13,780
Total commercial real estate loans	3,052		381		799		3,786		—		13,780		—		—		—		—		—		21,798
Consumer:
SFR 1-4 1st DT liens	—		—		—		—		—		—		5,089		—		—		—		—		5,089
SFR HELOCs and junior liens	—		—		—		—		—		—		1,403		1,739		—		—		—		3,142
Other	—		—		—		—		—		—		—		—		89		—		—		89
Total consumer loans	—		—		—		—		—		—		6,492		1,739		89		—		—		8,320
Commercial and industrial	—		—		—		—		—		—		—		—		—		1,294		807		2,101
Construction	—		—		—		—		—		—		64		—		—		—		—		64
Agriculture production	—		—		—		1,376		—		—		—		—		—		—		—		1,376
Leases	—		—		—		—		—		—		—		—		—		—		—		—
Total	$	3,052	$	381	$	799	$	5,162	$	—	$	13,780	$	6,556	$	1,739	$	89	$	1,294	$	807	$	33,659

	As of December 31, 2023
(in thousands)	Retail		Office		Warehouse		Other		Multifamily		Farmland		SFR -1st Deed		SFR -2nd Deed		Automobile/Truck		A/R and Inventory		Equipment		Total
Commercial real estate:
CRE non-owner occupied	$	124	$	615	$	519	$	766	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	2,024
CRE owner occupied	614		—		297		3,083		—		—		—		—		—		—		—		3,994
Multifamily	—		—		—		—		—		—		—		—		—		—		—		—
Farmland	—		—		—		635		—		13,849		—		—		—		—		—		14,484
Total commercial real estate loans	738		615		816		4,484		—		13,849		—		—		—		—		—		20,502
Consumer:
SFR 1-4 1st DT liens	—		—		—		—		—		—		2,808		—		—		—		—		2,808
SFR HELOCs and junior liens	—		—		—		—		—		—		1,816		1,467		—		—		—		3,283
Other	—		—		—		—		—		—		—		—		95		—		—		95
Total consumer loans	—		—		—		—		—		—		4,624		1,467		95		—		—		6,186
Commercial and industrial	—		—		—		—		—		—		—		—		—		1,712		791		2,503
Construction	—		—		—		—		—		—		67		—		—		—		—		67
Agriculture production	—		—		—		2,288		—		—		—		—		—		—		33		2,321
Leases	—		—		—		—		—		—		—		—		—		—		—		—
Total	$	738	$	615	$	816	$	6,772	$	—	$	13,849	$	4,691	$	1,467	$	95	$	1,712	$	824	$	31,579

Modifications to borrowers experiencing financial difficulty may include interest rate reductions, principal or interest forgiveness, forbearances, term extensions, and other actions intended to minimize economic loss and to avoid foreclosure or repossession of collateral.

The following tables show the amortized cost basis of loans that were both experiencing financial difficulty and modified during the periods presented. The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivables is also presented below.

	For the three months ended
	March 31, 2024						March 31, 2023
(in thousands)	Combination - Term Extension/Rate Change		Payment Delay/Term Extension		Total % of Loans Outstanding		Payment Delay/Term Extension		Total % of Loans Outstanding
CRE non-owner occupied	$	211	$	—	0.03	%	$	—	—	%
SFR HELOCs and junior liens	—		41		0.01		—		—
Commercial and industrial	—		516		0.07		177		0.03
Total	$	211	$	557	0.11	%	$	177	0.03	%

The following table presents the financial effect of loan modifications made to borrowers experiencing financial difficulty during the quarter ended March 31, 2024.

Modification Type	Loan Type	Financial Effect
Combination - Term extension / rate change	CRE non-owner occupied	Added 120 months to the life of the loan; converted from variable to fixed interest rate
Payment delay / term extension	SFR HELOCs and junior liens	Added 60 months to the life of the loan
Payment delay / term extension	Commercial and industrial	Added 66 months to the life of the loan
Payment delay / term extension	Commercial and industrial	Added 12 months to the life of the loan

The following table presents the financial effect of loan modifications made to borrowers experiencing financial difficulty during the quarter ended March 31, 2023.

Modification Type	Loan Type	Financial Effect
Payment delay / term extension	Commercial and industrial	Added 12 months to the life of the loan to delay balloon repayment

During the quarters ended March 31, 2024 and March 31, 2023, respectively, there were no loans with payment defaults by borrowers experiencing financial difficulty which had material modifications in rate, term or principal forgiveness during the twelve months prior to default.

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Leases

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Leases

Leases

The Company records a ROUA on the consolidated balance sheets for those leases that convey rights to control use of identified assets for a period of time in exchange for consideration. The Company also records a lease liability on the consolidated balance sheets for the present value of future payment commitments. All of the Company’s leases are comprised of operating leases in which the Company is lessee of real estate property for branches, ATM locations, and general administration and operations. The Company has elected not to include short-term leases (i.e. leases with initial terms of 12 month or less) within the ROUA and lease liability. Known or determinable adjustments to the required minimum future lease payments were included in the calculation of the Company’s ROUA and lease liability. Adjustments to the required minimum future lease payments that are variable and will not be determinable until a future period, such as changes in the consumer price index, are included as variable lease costs. Additionally, expected variable payments for common area maintenance, taxes and insurance were unknown and not determinable at lease commencement and therefore, were not included in the determination of the Company’s ROUA or lease liability.

The value of the ROUA and lease liability is impacted by the amount of the periodic payment required, length of the lease term, and the discount rate used to calculate the present value of the minimum lease payments. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. Topic 842 requires the use of the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception, on a collateralized basis, over a similar term. The lease liability is reduced based on the discounted present value of remaining payments as of each reporting period. The ROUA value is measured using the amount of lease liability and adjusted for prepaid or accrued lease payments, remaining lease incentives, unamortized direct costs (if any), and impairment (if any).

The following table presents the components of lease expense for the periods ended:

	Three months ended March 31,
(in thousands)	2024		2023
Operating lease cost	$	1,434	$	1,609
Short-term lease cost	52		118
Variable lease cost	13		12
Sublease income	—		—
Total lease cost	$	1,499	$	1,739

The following table presents supplemental cash flow information related to leases for the periods ended:

	Three months ended March 31,
(in thousands)	2024		2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	1,568	$	1,653
ROUA obtained in exchange for operating lease liabilities	$	1,327	$	4,484

The following table presents the weighted average operating lease term and discount rate as of the period ended:

	March 31,
	2024		2023
Weighted-average remaining lease term (years)	7.9		8.3
Weighted-average discount rate	3.42	%	3.27	%

At March 31, 2024, future expected operating lease payments are as follows:

(in thousands)
Periods ending December 31,
2024	$	4,376
2025	5,337
2026	4,799
2027	4,114
2028	3,061
Thereafter	10,973
	32,660
Discount for present value of expected cash flows	(4,361)
Lease liability at March 31, 2024	$	28,299

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Deposits

3 Months Ended

Mar. 31, 2024

Deposits [Abstract]

Deposits

Deposits

A summary of the balances of deposits follows:

(in thousands)	March 31, 2024		December 31, 2023
Noninterest-bearing demand	$	2,600,448	$	2,722,689
Interest-bearing demand	1,742,875		1,731,814
Savings	2,672,537		2,682,068
Time certificates, $250,000 or more	375,222		250,180
Other time certificates	596,576		447,287
Total deposits	$	7,987,658	$	7,834,038

Certificate of deposit balances of $100.0 million and $50.0 million from the State of California were included in time certificates, over $250,000, at March 31, 2024 and December 31, 2023, respectively. The Company participates in a deposit program offered by the State of California whereby the State may make deposits at the Company’s request subject to collateral and credit worthiness constraints. The negotiated rates on these State deposits are generally more favorable than other wholesale funding sources available to the Company.

Overdrawn deposit balances of $1.7 million and $1.8 million were classified as consumer loans at March 31, 2024 and December 31, 2023, respectively.

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Other Borrowings

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Other Borrowings

Other Borrowings

A summary of the balances of other borrowings follows:

	March 31, 2024		December 31, 2023
(in thousands)
Term borrowing at FHLB, fixed rate of 4.75%, payable on April 8, 2024	$	200,000	$	200,000
Overnight borrowing at FHLB, fixed rate of 5.69%, payable on April 1, 2024	167,000		—
Overnight borrowing at FHLB, fixed rate of 5.70%, payable on January 2, 2024	—		400,000
Other collateralized borrowings, fixed rate, as of March 31, 2024 and December 31, 2023 of 0.05%, payable on April 1, 2024 and January 2, 2024, respectively	25,409		32,582
Total other borrowings	$	392,409	$	632,582

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Junior Subordinated Debt

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Junior Subordinated Debt

Junior Subordinated Debt

The following table summarizes the terms and recorded balances of each debenture as of the date indicated:

(in thousands)				Coupon Rate (Variable) 3 mo. SOFR +		As of March 31, 2024				As of December 31, 2023
Subordinated Debt Series	Maturity Date	Face Value				Current Coupon Rate		Recorded Book Value		Recorded Book Value
TriCo Cap Trust I	10/7/2033	$	20,619	3.05	%	8.63	%	$	20,619	$	20,619
TriCo Cap Trust II	7/23/2034	20,619		2.55	%	8.13	%	20,619		20,619
North Valley Trust II	4/24/2033	6,186		3.25	%	8.82	%	5,629		5,602
North Valley Trust III	7/23/2034	5,155		2.80	%	8.38	%	4,495		4,472
North Valley Trust IV	3/15/2036	10,310		1.33	%	6.92	%	7,673		7,615
VRB Subordinated	3/29/2029	16,000		3.52	%	9.08	%	16,953		17,000
VRB Subordinated - 5%	8/27/2035	20,000		Fixed		5.00	%	25,132		25,172
		$	98,889					$	101,120	$	101,099

The VRB - 5% Subordinated Debt issuance is fixed at 5.0% through August 27, 2025, then will have a floating rate of 90-day average SOFR plus 4.9% until maturity.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

The following table presents a summary of the Bank’s commitments and contingent liabilities:

(in thousands)	March 31, 2024		December 31, 2023
Financial instruments whose amounts represent risk:
Commitments to extend credit:
Commercial loans	$	793,157	$	788,742
Consumer loans	642,028		652,110
Real estate mortgage loans	447,443		453,647
Real estate construction loans	324,254		331,178
Standby letters of credit	41,912		38,449
Deposit account overdraft privilege	129,273		121,539

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Shareholders' Equity

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Shareholders' Equity

Shareholders’ Equity

Dividends Paid

The Bank paid to the Company cash dividends in the aggregate amounts of $20.4 million and $18.2 million during the three months ended March 31, 2024 and 2023, respectively. The Bank is regulated by the FDIC and the DFPI. Absent approval from the Commissioner of the DFPI, California banking laws generally limit the Bank’s ability to pay dividends to the lesser of (1) retained earnings or (2) net income for the last three fiscal years, less cash distributions paid during such period.

Stock Repurchase Plan

On February 25, 2021, the Board of Directors authorized the repurchase of up to 2.0 million shares of the Company's common stock (the 2021 Repurchase Plan), which approximated 6.7% of the shares outstanding as of the approval date. The actual timing of any share repurchases can be determined by the Company's management and therefore the total value of the shares to be purchased under the 2021 Repurchase Plan is subject to change. The 2021 Repurchase Plan has no expiration date (in accordance with applicable laws and regulations). During the three months ended March 31, 2024 and 2023, the Company repurchased 99,332 and 150,000 shares with market values of $3.4 million and $7.0 million, respectively.

Stock Repurchased Under Equity Compensation Plans

The Company's shareholder-approved equity compensation plans permit employees to tender recently vested shares in lieu of cash for the payment of exercise price, if applicable, and the tax withholding on such shares. During the three months ended March 31, 2024 and 2023, exercising option holders tendered zero shares, respectively, of the Company’s common stock in connection with option exercises. Employees also tendered zero and 12,381 shares in connection with the tax withholding requirements of other share-based awards during the three months ended March 31, 2024 and 2023, respectively. In total, shares of the Company's common stock tendered had market values of zero and $0.6 million during the quarters ended March 31, 2024 and 2023, respectively. The tendered shares were retired. The market value of tendered shares is the last market trade price at closing on the day an option is exercised or the other share-based award vests. Stock repurchased under equity incentive plans are not included in the total of stock repurchased under the 2021 Stock Repurchase Plans.

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Stock Options and Other Equity-Based Incentive Instruments

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Stock Options and Other Equity-Based Incentive Instruments

Stock Options and Other Equity-Based Incentive Instruments

On April 16, 2019, the Board of Directors adopted the 2019 Equity Incentive Plan (2019 Plan) which was approved by shareholders on May 21, 2019. The 2019 Plan allows for up to 1,500,000 shares to be issued in connection with equity-based incentives. The Company’s 2009 Equity Incentive Plan (2009 Plan) expired on March 26, 2019. While no new awards can be granted under the 2009 Plan, existing grants continue to be governed by the terms, conditions and procedures set forth in any applicable award agreement.

Stock option activity during the three months ended March 31, 2024, is summarized in the following table:

	Number of Shares	Weighted Average Exercise Price
Outstanding at December 31, 2023	7,500	$	23.21
Options granted	—	—
Options exercised	—	—
Options forfeited	—	—
Outstanding at March 31, 2024	7,500	$	23.21

The following table shows the number, weighted-average exercise price, intrinsic value, and weighted average remaining contractual life of options exercisable, options not yet exercisable and total options outstanding as of March 31, 2024:

	Currently Exercisable		Currently Not Exercisable		Total Outstanding
Number of options	7,500		—		7,500
Weighted average exercise price	$	23.21	$	—	$	23.21
Intrinsic value (in thousands)	$	102	$	—	$	102
Weighted average remaining contractual term (yrs.)	0.5		n/a		0.5

As of March 31, 2024, all options outstanding are fully vested and are expected to be exercised prior to expiration. The Company did not modify any option grants during the three months ended March 31, 2024 or 2023.

Activity related to restricted stock unit awards during the three months ended March 31, 2024 is summarized in the following table:

	Service Condition Vesting RSUs	Market Plus Service Condition Vesting RSUs
Outstanding at December 31, 2023	144,487	123,102
RSUs granted	65,167	56,516
RSUs added through dividend and performance credits	1,968	—
RSUs released	—	—
RSUs forfeited	(1,063)	(1,204)
Outstanding at March 31, 2024	210,559	178,414

The 210,559 of service condition vesting RSUs outstanding as of March 31, 2024 include a feature whereby each RSU outstanding is credited with a dividend amount equal to any common stock cash dividend declared and paid, and the credited amount is divided by the closing price of the Company’s stock on the dividend payable date to arrive at an additional amount of RSUs outstanding under the original grant. The dividend credits follow the same vesting requirements as the RSU awards and are not considered participating securities. The 210,559 of service condition vesting RSUs outstanding as of March 31, 2024 are expected to vest, and be released, on a weighted-average basis, over the next 2.2 years. The Company expects to recognize $5.4 million of pre-tax compensation costs related to these service condition vesting RSUs between March 31, 2024 and their vesting dates. The Company did not modify any service condition vesting RSUs during the three months ended March 31, 2024 or 2023.

The 178,414 of market plus service condition vesting RSUs outstanding as of March 31, 2024 are expected to vest, and be released, on a weighted-average basis, over the next 2.3 years. The Company expects to recognize $3.0 million of pre-tax compensation costs related to these RSUs between March 31, 2024 and their vesting dates. As of March 31, 2024, the number of market plus service condition vesting RSUs outstanding that will actually vest, and be released, may be reduced to zero or increased to 267,621 depending on the total return of the Company’s common stock versus the total return of an index of bank stocks from the grant date to the vesting date. The Company did not modify any market plus service condition vesting RSUs during 2023 or during the three months ended March 31, 2024

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Non-interest Income and Expense

3 Months Ended

Mar. 31, 2024

Other Income and Expenses [Abstract]

Non-interest Income and Expense

Non-interest Income and Expense

The following table summarizes the Company’s non-interest income for the periods indicated:

	Three months ended March 31,
(in thousands)	2024		2023
ATM and interchange fees	$	6,169	$	6,344
Service charges on deposit accounts	4,663		3,431
Other service fees	1,366		1,166
Mortgage banking service fees	428		465
Change in value of mortgage servicing rights	11		(209)
Total service charges and fees	12,637		11,197
Increase in cash value of life insurance	803		802
Asset management and commission income	1,128		934
Gain on sale of loans	261		206
Lease brokerage income	161		98
Sale of customer checks	312		288
Loss on sale of investment securities	—		(164)
(Loss) gain on marketable equity securities	(28)		42
Other	497		232
Total other non-interest income	3,134		2,438
Total non-interest income	$	15,771	$	13,635

The components of non-interest expense were as follows:

	Three months ended March 31,
(in thousands)	2024		2023
Base salaries, net of deferred loan origination costs	$	24,020	$	23,000
Incentive compensation	3,257		2,895
Benefits and other compensation costs	7,027		6,668
Total salaries and benefits expense	34,304		32,563
Occupancy	3,951		4,160
Data processing and software	5,107		4,032
Equipment	1,356		1,383
Intangible amortization	1,030		1,656
Advertising	762		759
ATM and POS network charges	1,661		1,709
Professional fees	1,340		1,589
Telecommunications	511		595
Regulatory assessments and insurance	1,251		792
Postage	308		299
Operational losses	352		435
Courier service	480		339
(Gain) on sale or acquisition of foreclosed assets	(38)		—
Gain on disposal of fixed assets	5		—
Other miscellaneous expense	4,124		3,483
Total other non-interest expense	22,200		21,231
Total non-interest expense	$	56,504	$	53,794

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Earnings Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Basic earnings per share represent income available to common shareholders divided by the weighted-average number of common shares outstanding during the period. Diluted earnings per share reflect additional common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustments to income that would result from assumed issuance. Potential common shares that may be issued by the Company relate to outstanding stock options and restricted stock units (RSUs), and are determined using the treasury stock method. Earnings per share have been computed based on the following:

	Three months ended March 31,
(in thousands)	2024		2023
Net income	$	27,749	$	35,833
Average number of common shares outstanding	33,245		33,296
Effect of dilutive stock options and restricted stock	125		142
Average number of common shares outstanding used to calculate diluted earnings per share	33,370		33,438
Options excluded from diluted earnings per share because of their antidilutive effect	—		—

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Comprehensive Income (Loss)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Comprehensive Income (Loss)

Comprehensive Income (Loss)

Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as unrealized gains and losses on available-for-sale securities, are reported as a separate component of the equity section of the balance sheet identified as accumulated other comprehensive income (AOCI), such items, along with net income, are components of other comprehensive income (loss) (OCI).

The components of other comprehensive income (loss) and related tax effects are as follows:

	Three months ended March 31,
(in thousands)	2024		2023
Unrealized holding gains (losses) on available for sale securities before reclassifications	$	(15,899)	$	34,540
Amounts reclassified out of AOCI:
Realized loss on debt securities	—		164
Unrealized holding gains (losses) on available for sale securities after reclassifications	(15,899)		34,704
Tax effect	4,701		(10,260)
Unrealized holding gains (losses) on available for sale securities, net of tax	(11,198)		24,444
Change in unfunded status of the supplemental retirement plans before reclassifications	459		114
Amounts reclassified out of AOCI:
Amortization of prior service cost	—		—
Amortization of actuarial losses	(459)		(114)
Total amounts reclassified out of accumulated other comprehensive loss	(459)		(114)
Change in unfunded status of the supplemental retirement plans after reclassifications	—		—
Tax effect	—		—
Change in unfunded status of the supplemental retirement plans, net of tax	—		—
Change in joint beneficiary agreement liability before reclassifications	—		—
Tax effect	—		—
Change in joint beneficiary agreement liability before reclassifications, net of tax	—		—
Total other comprehensive income (loss)	$	(11,198)	$	24,444

The components of accumulated other comprehensive loss, included in shareholders’ equity, are as follows:

(in thousands)	March 31, 2024		December 31, 2023
Net unrealized loss on available for sale securities	$	(247,720)	$	(231,821)
Tax effect	73,235		68,534
Unrealized holding loss on available for sale securities, net of tax	(174,485)		(163,287)
Unfunded status of the supplemental retirement plans	13,527		13,527
Tax effect	(3,999)		(3,999)
Unfunded status of the supplemental retirement plans, net of tax	9,528		9,528
Joint beneficiary agreement liability	590		590
Tax effect	—		—
Joint beneficiary agreement liability, net of tax	590		590
Accumulated other comprehensive loss	$	(164,367)	$	(153,169)

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Fair Value Measurement

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurement

Fair Value Measurement

The Company utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. In estimating fair value, the Company utilizes valuation techniques that are consistent with the market approach, income approach, and/or the cost approach. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset and the risk of nonperformance. Marketable equity securities, debt securities available-for-sale, loans held for sale, and mortgage servicing rights are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may be required to record at fair value other assets on a nonrecurring basis, such loans held for investment and certain other assets. These nonrecurring fair value adjustments typically involve application impairment write-downs of individual assets.

The Company groups assets and liabilities at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observable nature of the assumptions used to determine fair value. These levels are:

Level 1 - Valuation is based upon quoted prices for identical instruments traded in active markets.

Level 2 - Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in

markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market.

Level 3 - Valuation is generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.

Marketable equity securities and debt securities available for sale - Marketable equity securities and debt securities available for sale are recorded at fair value on a recurring basis. Fair value measurement is based upon quoted prices, if available. If quoted prices are not available, fair values are measured using independent pricing models or other model-based valuation techniques such as the present value of future cash flows, adjusted for the security’s credit rating, prepayment assumptions and other factors such as credit loss assumptions. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange, U.S. Treasury securities that are traded by dealers or brokers in active over-the-counter markets and money market funds. Level 2 securities include mortgage-backed securities issued by government sponsored entities, municipal bonds and corporate debt securities. The Company had no securities classified as Level 3 during any of the periods covered in these consolidated financial statements.

Loans held for sale - Loans held for sale are carried at the lower of cost or fair value. The fair value of loans held for sale is based on what secondary markets are currently offering for loans with similar characteristics. As such, we classify those loans subjected to recurring fair value adjustments as Level 2.

Individually evaluated loans - Loans are not recorded at fair value on a recurring basis. However, from time to time, certain loans have individual risk characteristics not consistent with a pool of loans and is individually evaluated for credit reserves. Loans for which it is probable that payment of interest and principal will not be made in accordance with the original contractual terms of the loan agreement are typically individually evaluated. The fair value of these loans are estimated using one of several methods, including collateral value, fair value of similar debt, enterprise value, liquidation value and discounted cash flows. Those loans not requiring an allowance represent loans for which the fair value of the expected repayments or collateral exceed the recorded investments in such loans. Loans where an allowance is established based on the fair value of collateral require classification in the fair value hierarchy. When the fair value of the collateral is based on an observable market price or a current appraised value which uses substantially observable data, the Company records the loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value, or the appraised value contains a significant unobservable assumption, such as deviations from comparable sales, and there is no observable market price, the Company records the loan as nonrecurring Level 3.

Foreclosed assets - Foreclosed assets include assets acquired through, or in lieu of, loan foreclosure. Foreclosed assets are held for sale and are initially recorded at fair value at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, management periodically performs valuations and the assets are carried at the lower of carrying amount or fair value less cost to sell. When the fair value of foreclosed assets is based on an observable market price or a current appraised value which uses substantially observable data, the Company records the loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value, or the appraised value contains a significant unobservable assumption, such as deviations from comparable sales, and there is no observable market price, the Company records the foreclosed asset as nonrecurring Level 3. Revenue and expenses from operations and changes in the valuation allowance are included in other non-interest expense.

Mortgage servicing rights - Mortgage servicing rights are carried at fair value. A valuation model, which utilizes a discounted cash flow analysis using a discount rate and prepayment speed assumptions is used in the computation of the fair value measurement. While the prepayment speed assumption is currently quoted for comparable instruments, the discount rate assumption currently requires a significant degree of management judgment and is therefore considered an unobservable input. As such, the Company classifies mortgage servicing rights subjected to recurring fair value adjustments as Level 3.

The table below presents the recorded amount of assets and liabilities measured at fair value on a recurring basis (in thousands):

Fair value at March 31, 2024	Total		Level 1		Level 2		Level 3
Marketable equity securities	$	2,606	$	2,606	$	—	$	—
Debt securities available for sale:
Obligations of U.S. government corporations and agencies	1,170,192		—		1,170,192		—
Obligations of states and political subdivisions	234,177		—		234,177		—
Corporate bonds	5,746		—		5,746		—
Asset backed securities	359,673		—		359,673		—
Non-agency mortgage backed securities	304,100		—		304,100		—
Loans held for sale	1,346		—		1,346		—
Mortgage servicing rights	6,697		—		—		6,697
Total assets measured at fair value	$	2,084,537	$	2,606	$	2,075,234	$	6,697

Fair value at December 31, 2023	Total		Level 1		Level 2		Level 3
Marketable equity securities	$	2,634	$	2,634	$	—	$	—
Debt securities available for sale:
Obligations of U.S. government corporations and agencies	1,221,737		—		1,221,737		—
Obligations of states and political subdivisions	236,375		—		236,375		—
Corporate bonds	5,602		—		5,602		—
Asset backed securities	355,281		—		355,281		—
Non-agency mortgage backed securities	333,509		—		333,509		—
Loans held for sale	458		—		458		—
Mortgage servicing rights	6,606		—		—		6,606
Total assets measured at fair value	$	2,162,202	$	2,634	$	2,152,962	$	6,606

Transfers between levels of the fair value hierarchy are recognized on the actual date of the event or circumstances that caused the transfer, which generally corresponds with the Company’s quarterly valuation process. There were no transfers between any levels during the three months ended March 31, 2024 or March 31, 2023, respectively.

The following table provides a reconciliation of assets and liabilities measured at fair value using significant unobservable inputs (Level 3) on a recurring basis during the time periods indicated. Had there been any transfer into or out of Level 3 during the time periods indicated, the amount included in the “Transfers into (out of) Level 3” column would represent the beginning balance of an item in the period (interim quarter) during which it was transferred (in thousands):

Three months ended March 31,	Beginning Balance		Transfers into (out of) Level 3	Change Included in Earnings		Issuances		Ending Balance
2024: Mortgage servicing rights	$	6,606	—	$	11	$	80	$	6,697
2023: Mortgage servicing rights	$	6,712	—	$	(209)	$	50	$	6,553

Three months ended March 31,

The key unobservable inputs used in determining the fair value of mortgage servicing rights are mortgage prepayment speeds and the discount rate used to discount cash projected cash flows. Generally, any significant increases in the mortgage prepayment speed and discount rate utilized in the fair value measurement of the mortgage servicing rights will result in a negative fair value adjustments (and decrease in the fair value measurement). Conversely, a decrease in the mortgage prepayment speed and discount rate will result in a positive fair value adjustment (and increase in the fair value measurement).

The following table presents quantitative information about recurring Level 3 fair value measurements at March 31, 2024 and December 31, 2023:

As of March 31, 2024:	Fair Value (in thousands)		Valuation Technique	Unobservable Inputs	Range, Weighted Average
Mortgage Servicing Rights	$	6,697	Discounted cash flow	Constant prepayment rate	6% - 11%; 6.4%
				Discount rate	10% - 14%; 12%
As of December 31, 2023:
Mortgage Servicing Rights	$	6,606	Discounted cash flow	Constant prepayment rate	6% - 12.8%; 7.0%
				Discount rate	10% - 14%; 12%

The tables below present the recorded investment in assets and liabilities measured at fair value on a nonrecurring basis, as of the dates indicated, that had a write-down or an additional allowance provided during the periods indicated (in thousands):

March 31, 2024	Total		Level 1	Level 2	Level 3
Fair value:
Collateral dependent loans	$	5,056	—	—	$	5,056
Foreclosed assets	831		—	—	831
Total assets measured at fair value	$	5,887	—	—	$	5,887

December 31, 2023	Total		Level 1	Level 2	Level 3
Fair value:
Collateral dependent loans	$	4,175	—	—	$	4,175
Foreclosed assets	50		—	—	50
Total assets measured at fair value	$	4,225	—	—	$	4,225

The tables below present the gains (losses) resulting from non-recurring fair value adjustments of assets and liabilities for the periods indicated (in thousands):

	Three months ended March 31,
	2024		2023
Collateral dependent loans	$	128	$	(277)
Foreclosed assets	(224)		—
Total losses from non-recurring measurements	$	(96)	$	(277)

The individually evaluated loan amounts above represent collateral dependent loans that have been adjusted to fair value. When the Company identifies a collateral dependent loan with unique risk characteristics, the Company evaluates the need for an allowance using the current fair value of the collateral, less selling costs. Depending on the characteristics of a loan, the fair value of collateral is generally estimated by obtaining external appraisals. If the Company determines that the value of the loan is less than the recorded investment in the loan, the Company recognizes this impairment and adjust the carrying value of the loan to fair value through the allowance for credit losses. The loss represents charge-offs or impairments on collateral dependent loans for fair value adjustments based on the fair value of collateral. The carrying value of loans fully charged-off is zero.

The foreclosed assets amount above represents impaired real estate that has been adjusted to fair value. Foreclosed assets represent real estate which the Company has taken control of in partial or full satisfaction of loans. At the time of foreclosure, other real estate owned is recorded at fair value less costs to sell, which becomes the property’s new basis. Any write-downs based on the asset’s fair value at the date of acquisition are charged to the allowance for credit losses. After foreclosure, management periodically performs valuations such that the real estate is carried at the lower of its new cost basis or fair value, net of estimated costs to sell. Fair value adjustments on other real estate owned are recognized within net loss on real estate owned. The loss represents impairments on real estate owned for fair value adjustments based on the fair value of the real estate.

The Company’s property appraisals are primarily based on the sales comparison approach and income approach methodologies, which consider recent sales of comparable properties, including their income generating characteristics, and then make adjustments to reflect the general assumptions that a market participant would make when analyzing the property for purchase. These adjustments may increase or decrease an appraised value and can vary significantly depending on the location, physical characteristics and income producing potential of each property. Additionally, the quality and volume of market information available at the time of the appraisal can vary from period to period and cause significant changes to the nature and magnitude of comparable sale adjustments. Given these variations, comparable sale adjustments are generally not a reliable indicator for how fair value will increase or decrease from period to period. Under certain circumstances, management discounts are applied based on specific characteristics of an individual property.

The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at March 31, 2024:

March 31, 2024	Fair Value (in thousands)		Valuation Technique	Unobservable Inputs	Range, Weighted Average
Collateral dependent loans	$	5,056	Sales comparison approach Income approach	Adjustment for differences between comparable sales; Capitalization rate	Not meaningful N/A
Foreclosed assets (Residential real estate)	$	831	Sales comparison approach	Adjustment for differences between comparable sales	Not meaningful N/A

The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at December 31, 2023:

December 31, 2023	Fair Value (in thousands)		Valuation Technique	Unobservable Inputs	Range, Weighted Average
Collateral dependent loans	$	4,175	Sales comparison approach Income approach	Adjustment for differences between comparable sales; Capitalization rate	Not meaningful N/A
Foreclosed assets (Residential real estate)	$	50	Sales comparison approach	Adjustment for differences between comparable sales	Not meaningful N/A

Fair values for financial instruments are management’s estimates of the values at which the instruments could be exchanged in a transaction between willing parties. The Company uses the exit price notion when measuring the fair value of financial instruments. These estimates are subjective and may vary significantly from amounts that would be realized in actual transactions. In addition, other significant assets are not considered financial assets including, any mortgage banking operations, deferred tax assets, and premises and equipment. Further, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on the fair value estimates and have not been considered in any of these estimates.

	March 31, 2024				December 31, 2023
(in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial assets:
Level 1 inputs:
Cash and due from banks	$	73,322	$	73,322	$	81,626	$	81,626
Cash at Federal Reserve and other banks	9,514		9,514		17,075		17,075
Level 2 inputs:
Securities held to maturity	127,811		118,528		133,494		125,126
Restricted equity securities	17,250		N/A		17,250		n/a
Level 3 inputs:
Loans, net	6,676,301		6,291,078		6,672,948		6,278,577
Financial liabilities:
Level 2 inputs:
Deposits	7,987,658		7,982,067		7,834,038		7,828,554
Other borrowings	392,409		329,409		632,582		632,582
Level 3 inputs:
Junior subordinated debt	101,120		101,090		101,099		95,407

(in thousands)	Contract Amount		Fair Value		Contract Amount		Fair Value
Off-balance sheet:
Level 3 inputs:
Commitments	$	2,206,882	$	22,069	$	2,225,677	$	22,257
Standby letters of credit	41,912		419		38,449		385
Overdraft privilege commitments	129,273		1,293		121,539		1,215

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Regulatory Matters

3 Months Ended

Mar. 31, 2024

Banking Regulation, Global Systemically Important Bank (GSIB) Surcharge [Abstract]

Regulatory Matters

Regulatory Matters

The Company is subject to various regulatory capital requirements administered by federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company must meet specific capital guidelines that involve quantitative measures of the Company’s assets, liabilities and certain off-balance-sheet items as calculated under regulatory accounting practices. The Company’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

Quantitative measures established by regulation to ensure capital adequacy require the Company to maintain minimum amounts and ratios

(set forth in the table below) of total, Tier 1, and common equity Tier 1 capital to risk-weighted assets, and of Tier 1 capital to average assets. The following tables present actual and required capital ratios as of March 31, 2024 and December 31, 2023 for the Company and the Bank under applicable Basel III Capital Rules. The minimum capital amounts presented include the minimum required capital levels as of March 31, 2024 and December 31, 2023 based on the then phased-in provisions of the Basel III Capital Rules. Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules.

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized
As of March 31, 2024:	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(dollars in thousands)
Total Capital (to Risk Weighted Assets):
Consolidated	$	1,212,626	14.97	%	$	850,469	10.50	%	N/A		N/A
Tri Counties Bank	$	1,202,415	14.85	%	$	850,265	10.50	%	$	809,776	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,068,911	13.20	%	$	688,475	8.50	%	N/A		N/A
Tri Counties Bank	$	1,100,831	13.59	%	$	688,310	8.50	%	$	647,821	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,011,649	12.49	%	$	566,979	7.00	%	N/A		N/A
Tri Counties Bank	$	1,100,831	13.59	%	$	566,843	7.00	%	$	526,355	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	1,068,911	11.01	%	$	388,326	4.00	%	N/A		N/A
Tri Counties Bank	$	1,100,831	11.34	%	$	388,253	4.00	%	$	485,316	5.00	%

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized
As of December 31, 2023:	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(dollars in thousands)
Total Capital (to Risk Weighted Assets):
Consolidated	$	1,196,106	14.73	%	$	852,850	10.50	%	N/A		N/A
Tri Counties Bank	$	1,190,542	14.66	%	$	852,648	10.50	%	$	812,046	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,052,063	12.95	%	$	690,402	8.50	%	N/A		N/A
Tri Counties Bank	$	1,088,717	13.41	%	$	690,239	8.50	%	$	649,637	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	994,907	12.25	%	$	568,566	7.00	%	N/A		N/A
Tri Counties Bank	$	1,088,717	13.41	%	$	568,432	7.00	%	$	527,830	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	1,052,063	10.75	%	$	391,620	4.00	%	N/A		N/A
Tri Counties Bank	$	1,088,717	11.12	%	$	391,574	4.00	%	$	489,468	5.00	%

As of March 31, 2024 and December 31, 2023, capital levels at the Company and the Bank exceed all capital adequacy requirements under the Basel III Capital Rules. Also, at March 31, 2024 and December 31, 2023, the Bank’s capital levels exceeded the minimum amounts necessary to be considered well capitalized under the current regulatory framework for prompt corrective action.

The Basel III Capital Rules require for all banking organizations to maintain a capital conservation buffer above the minimum risk-based capital requirements in order to avoid certain limitations on capital distributions, stock repurchases and discretionary bonus payments to executive officers. The capital conservation buffer is exclusively composed of common equity tier 1 capital, and it applies to each of the risk-based capital ratios but not the leverage ratio. At March 31, 2024, the Company and the Bank are in compliance with the capital conservation buffer requirement.

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net income	$ 27,749	$ 35,833

XML

Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Description of Business and Basis of Presentation

Description of Business and Basis of Presentation

TriCo Bancshares (the “Company” or “we”) is a California corporation organized to act as a bank holding company for Tri Counties Bank (the “Bank”). The Company and the Bank are headquartered in Chico, California. The Bank is a California-chartered bank that is engaged in the general commercial banking business in 33 California counties. The consolidated financial statements are prepared in accordance with accounting policies generally accepted in the United States of America and general practices in the banking industry. All adjustments necessary for a fair presentation of these consolidated financial statements have been included and are of a normal and recurring nature. The financial statements include the accounts of the Company. All inter-company accounts and transactions have been eliminated in consolidation.

The Company has five capital subsidiary business trusts (collectively, the “Capital Trusts”) that issued trust preferred securities, including two organized by the Company and three acquired with the acquisition of North Valley Bancorp. For financial reporting purposes, the Company’s investments in the Capital Trusts of $1.8 million are accounted for under the equity method and, accordingly, are not consolidated and are included in other assets on the consolidated balance sheet. See the footnote Junior Subordinated Debt for additional information on borrowings outstanding.

Use of Estimates in the Preparation of Financial Statements

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (the “2023 Annual Report”). The Company believes that the disclosures made are adequate to make the information not misleading.

Segment and Significant Group Concentration of Credit Risk

Segment and Significant Group Concentration of Credit Risk

The Company grants agribusiness, commercial, consumer, and residential loans to customers located throughout California. The Company has a diversified loan portfolio within the business segments located in this geographical area. The Company currently classifies all its operation into one business segment that it denotes as community banking.

Geographical Descriptions

Geographical Descriptions

For the purpose of describing the geographical location of the Company’s operations, the Company has defined northern California as that area of California north of, and including, Stockton to the east and San Jose to the west; central California as that area of the state south of Stockton and San Jose, to and including, Bakersfield to the east and San Luis Obispo to the west; and southern California as that area of the state south of Bakersfield and San Luis Obispo.

Reclassification

Reclassification

Some items in the prior year consolidated financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior year net income or shareholders’ equity.

Cash and Cash Equivalents

Cash and Cash Equivalents

Net cash flows are reported for loan and deposit transactions and other borrowings. For purposes of the consolidated statement of cash flows, cash, due from banks with original maturities less than 90 days, interest-earning deposits in other banks, and Federal funds sold are considered to be cash equivalents.

Allowance for Credit Losses - Securities

Allowance for Credit Losses - Securities

The Company measures expected credit losses on HTM debt securities on a collective basis by major security type, then further disaggregated by sector and bond rating. Accrued interest receivable on HTM debt securities was considered insignificant at March 31, 2024 and December 31, 2023 and is therefore excluded from the estimate of credit losses. The estimate of expected credit losses considers historical credit loss information that is adjusted for current conditions and reasonable and supportable forecasts based on current and expected changes in credit ratings and default rates. Based on the implied guarantees of the U. S. Government or its agencies related to certain of these investment securities, and the absence of any historical or expected losses, substantially all qualify for a zero loss

assumption. Management has separately evaluated its HTM investment securities from obligations of state and political subdivisions utilizing the historical loss data represented by similar securities over a period of time spanning nearly 50 years. As a result of this evaluation, management determined that the expected credit losses associated with these securities is not significant for financial reporting purposes and therefore, no allowance for credit losses has been recognized.

The Company evaluates AFS debt securities in an unrealized loss position to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or noncredit-related factors. Any impairment that is not credit related is recognized in other comprehensive income, net of applicable taxes. Credit-related impairment is recognized as an allowance for credit losses on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings. Both the allowance for credit losses and the adjustment to net income may be reversed if conditions change. However, if the Company intends to sell an impaired available for sale debt security or more likely than not will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount is recognized in earnings with a corresponding adjustment to the security's amortized cost basis. In evaluating available for sale debt securities in unrealized loss positions for impairment and the criteria regarding its intent or requirement to sell such securities, the Company considers the extent to which fair value is less than amortized cost, whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuers' financial condition, among other factors. Changes in the allowance for credit losses are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the ACL when management believes the uncollectability of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met.

Loans and Allowance for Credit Losses - Loans

Loans

Loans that management has the intent and ability to hold until maturity or payoff are reported at principle amount outstanding, net of deferred loan fees and costs. Loans are placed in nonaccrual status when reasonable doubt exists as to the full, timely collection of interest or principal, or a loan becomes contractually past due by 90 days or more with respect to interest or principal and is not well secured and in the process of collection. When a loan is placed on nonaccrual status, all interest previously accrued but not collected is reversed against interest income. Income on such loans is then recognized only to the extent that cash is received and where the future collection of principal is considered probable. Interest accruals are resumed on such loans only when they are brought fully current with respect to interest and principal and when, in the judgment of Management, the loan is estimated to be fully collectible as to both principal and interest. Accrued interest receivable is not included in the calculation of the allowance for credit losses.

Allowance for Credit Losses - Loans

The ACL is a valuation account that is deducted from the loan's amortized cost basis to present the net amount expected to be collected on the loans. Loans are charged-off against the allowance when management believes the recorded loan balance is confirmed as uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Regardless of the determination that a charge-off is appropriate for financial accounting purposes, the Company manages its loan portfolio by continually monitoring, where possible, a borrower's ability to pay through the collection of financial information, delinquency status, borrower discussion and the encouragement to repay in accordance with the original contract or modified terms, if appropriate.

Management estimates the allowance balance using relevant information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. Historical credit loss experience provides the basis for the estimation of expected credit losses, which captures loan balances as of a point in time to form a cohort, then tracks the respective losses generated by that cohort of loans over the remaining life. The Company identified and accumulated loan cohort historical loss data beginning with the fourth quarter of 2008 and through the current period. In situations where the Company's actual loss history was not statistically relevant, the loss history of peers, defined as financial institutions with assets greater than three billion and less than ten billion, were utilized to create a minimum loss rate. Adjustments to historical loss information are made for differences in relevant current loan-specific risk characteristics, such as historical timing of losses relative to the loan origination. In its loss forecasting framework, the Company incorporates forward-looking information through the use of macroeconomic scenarios applied over the forecasted life of the assets. These macroeconomic scenarios incorporate variables that have historically been key drivers of increases and decreases in credit losses. These variables include, but are not limited to changes in environmental conditions, such as California unemployment rates, household debt levels, changes in corporate debt yields, and U.S. gross domestic product.

PCD assets are assets acquired at a discount that is due, in part, to credit quality deterioration since origination. PCD assets are accounted for in accordance with ASC 326-20 and are initially recorded at fair value, by taking the sum of the present value of expected future cash flows and an allowance for credit losses, at acquisition. The allowance for credit losses for PCD assets is recorded through a gross-up of reserves on the balance sheet, while the allowance for acquired non-PCD assets, such as loans, is recorded through the provision for credit losses on the income statement, consistent with originated loans. Subsequent to acquisition, the allowance for credit losses for PCD loans will generally follow the same forward-looking estimation, provision, and charge-off process as non-PCD acquired and originated loans.

The Company has identified the following portfolio segments to evaluate and measure the allowance for credit loss:

Commercial real estate:

Commercial real estate - Non-owner occupied: These commercial properties typically consist of buildings which are leased to others for their use and rely on rents as the primary source of repayment. Property types are predominantly office, retail, or light industrial but the portfolio also has some special use properties. As such, the risk of loss associated with these properties is primarily driven by general

economic changes or changes in regional economies and the impact of such on a tenant’s ability to pay. Ultimately this can affect occupancy, rental rates, or both. Additional risk of loss can come from new construction resulting in oversupply, the costs to hold or operate the property, or changes in interest rates. The terms on these loans at origination typically have maturities from five to ten years with amortization periods from fifteen to thirty years.

Commercial real estate - Owner occupied: These credits are primarily susceptible to changes in the financial condition of the business operated by the property owner. This may be driven by changes in, among other things, industry challenges, factors unique to the operating geography of the borrower, change in the individual fortunes of the business owner, general economic conditions and changes in business cycles. When default is driven by issues related specifically to the business owner, collateral values tend to provide better repayment support and may result in little or no loss. Alternatively, when default is driven more by general economic conditions, the underlying collateral may have devalued more and thus result in larger losses in the event of default. The terms on these loans at origination typically have maturities from five to ten years with amortization periods from fifteen to thirty years.

Multifamily: These commercial properties are generally comprised of more than four rentable units, such as apartment buildings, with each unit intended to be occupied as the primary residence for one or more persons. Multifamily properties are also subject to changes in general or regional economic conditions, such as unemployment, ultimately resulting in increased vacancy rates or reduced rents or both. In addition, new construction can create an oversupply condition and market competition resulting in increased vacancy, reduced market rents, or both. Due to the nature of their use and the greater likelihood of tenant turnover, the management of these properties is more intensive and therefore is more critical to the preclusion of loss.

Farmland: While the Company has few loans that were originated for the purpose of the acquisition of these commercial properties, loans secured by farmland represent unique risks that are associated with the operation of an agricultural businesses. The valuation of farmland can vary greatly over time based on the property's access to resources including but not limited to water, crop prices, foreign exchange rates, government regulation or restrictions, and the nature of ongoing capital investment needed to maintain the quality of the property. Loans secured by farmland typically represent less risk to the Company than other agriculture loans as the real estate typically provides greater support in the event of default or need for longer term repayment.

Consumer loans:

SFR 1-4 1st DT Liens: The most significant drivers of potential loss within the Company's residential real estate portfolio relate general, regional, or individual changes in economic conditions and their effect on employment and borrowers cash flow. Risk in this portfolio is best measured by changes in borrower credit score and loan-to-value. Loss estimates are based on the general movement in credit score, economic outlook and its effects on employment and the value of homes and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate.

SFR HELOCs and Junior Liens: Similar to residential real estate term loans, HELOCs and junior liens performance is also primarily driven by borrower cash flows based on employment status. However, HELOCs carry additional risks associated with the fact that most of these loans are secured by a deed of trust in a position that is junior to the primary lien holder. Furthermore, the risk that as the borrower's financial strength deteriorates, the outstanding balance on these credit lines may increase as they may only be canceled by the Company if certain limited criteria are met. In addition to the allowance for credit losses maintained as a percent of the outstanding loan balance, the Company maintains additional reserves for the unfunded portion of the HELOC.

Other: The majority of consumer loans are secured by automobiles, with the remainder primarily unsecured revolving debt (credit cards). These loans are susceptible to three primary risks; non-payment due to income loss, over-extension of credit and, when the borrower is unable to pay, shortfall in collateral value, if any. Typically non-payment is due to loss of job and will follow general economic trends in the marketplace driven primarily by rises in the unemployment rate. Loss of collateral value can be due to market demand shifts, damage to collateral itself or a combination of those factors. Credit card loans are unsecured and while collection efforts are pursued in the event of default, there is typically limited opportunity for recovery. Loss estimates are based on the general movement in credit score, economic outlook and its effects on employment and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate.

Commercial and Industrial:

Repayment of these loans is primarily based on the cash flow of the borrower, and secondarily on the underlying collateral provided by the borrower. A borrower's cash flow may be unpredictable, and collateral securing these loans may fluctuate in value. Most often, collateral includes accounts receivable, inventory, or equipment. Collateral securing these loans may depreciate over time, may be difficult to appraise, may be illiquid and may fluctuate in value based on the success of the business. Actual and forecast changes in gross domestic product are believed to be corollary to losses associated with these credits.

Construction:

While secured by real estate, construction loans represent a greater level of risk than term real estate loans due to the nature of the additional risks associated with the not only the completion of construction within an estimated time period and budget, but also the need to either sell the building or reach a level of stabilized occupancy sufficient to generate the cash flows necessary to support debt service and operating costs. The Company seeks to mitigate the additional risks associated with construction lending by requiring borrowers to comply with lower loan to value ratios and additional covenants as well as strong tertiary support of guarantors. The loss forecasting model applies the historical rate of loss for similar loans over the expected life of the asset as adjusted for macroeconomic factors.

Agriculture Production:

Repayment of agricultural loans is dependent upon successful operation of the agricultural business, which is greatly impacted by factors outside the control of the borrower. These factors include adverse weather conditions, including access to water, that may impact crop yields, loss of livestock due to disease or other factors, declines in market prices for agriculture products, changes in foreign exchange, and the impact of government regulations. In addition, many farms are dependent on a limited number of key individuals whose injury or death may significantly affect the successful operation of the business. Consequently, agricultural production loans may involve a greater degree of risk than other types of loans.

Leases:

The loss forecasting model applies the historical rate of loss for similar loans over the expected life of the asset. Leases typically represent an elevated level of credit risk as compared to loans secured by real estate as the collateral for leases is often subject to a more rapid rate of depreciation or depletion. The ultimate severity of loss is impacted by the type of collateral securing the exposure, the size of the exposure, the borrower’s industry sector, any guarantors and the geographic market. Assumptions of expected loss are conditioned to the economic outlook and the other variables discussed above.

Unfunded commitments:

The estimated credit losses associated with these unfunded lending commitments is calculated using the same models and methodologies noted above and incorporate utilization assumptions at time of default. The reserve for unfunded commitments is maintained on the consolidated balance sheet in other liabilities.

Accounting Standards Recently Issued or Adopted

Accounting Standards Recently Issued or Adopted

FASB issued ASU 2024-02, Codification Improvements— Amendments to Remove References to the Concepts Statements. This ASU facilitates Codification updates for technical corrections such as conforming amendments, clarifications to guidance, simplifications to wording or the structure of guidance, and other minor improvements. The resulting amendments are referred to as Codification improvements. The amendments in this Update are not intended to result in significant accounting change for most entities. However, the Board recognizes that changes to that guidance may result in accounting change for some entities. Therefore, the amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2024. The adoption of this accounting guidance is not expected to have a material impact on the Company’s consolidated financial statements.

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Investment Securities (Tables)

3 Months Ended

Mar. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Amortized Cost and Estimated Fair Values of Investments Securities

The amortized cost, estimated fair values and allowance for credit losses of investments in debt securities are summarized in the following tables:

	March 31, 2024
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for Credit Losses		Estimated Fair Value
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	1,349,679	$	1	$	(179,488)	$	—	$	1,170,192
Obligations of states and political subdivisions	262,777		132		(28,732)		—		234,177
Corporate bonds	6,175		—		(429)		—		5,746
Asset backed securities	362,877		623		(3,827)		—		359,673
Non-agency collateralized mortgage obligations	340,100		—		(36,000)		—		304,100
Total debt securities available for sale	$	2,321,608	$	756	$	(248,476)	$	—	$	2,073,888
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	125,131	$	1	$	(9,239)	—		115,893
Obligations of states and political subdivisions	2,680		—		(45)		—		2,635
Total debt securities held to maturity	$	127,811	$	1	$	(9,284)	$	—	$	118,528

	December 31, 2023
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for Credit Losses		Estimated Fair Value
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	1,386,772	$	2	$	(165,037)	$	—	$	1,221,737
Obligations of states and political subdivisions	262,879		268		(26,772)		—		236,375
Corporate bonds	6,173		—		(571)		—		5,602
Asset backed securities	359,214		255		(4,188)		—		355,281
Non-agency collateralized mortgage obligations	369,287		—		(35,778)		—		333,509
Total debt securities available for sale	$	2,384,325	$	525	$	(232,346)	$	—	$	2,152,504
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	130,823	$	—	$	(8,331)	$	—	$	122,492
Obligations of states and political subdivisions	2,671		6		(43)		—		2,634
Total debt securities held to maturity	$	133,494	$	6	$	(8,374)	$	—	$	125,126

Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity

As of March 31, 2024, the contractual final maturity for available for sale and held to maturity investment securities is as follows:

Debt Securities	Available for Sale				Held to Maturity
(in thousands)	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year	$	51,718	$	51,226	$	—	$	—
Due after one year through five years	49,150		46,062		5,396		5,206
Due after five years through ten years	371,852		358,110		92,951		86,475
Due after ten years	1,848,888		1,618,490		29,464		26,847
Totals	$	2,321,608	$	2,073,888	$	127,811	$	118,528

Gross Unrealized Losses on Investment Securities

Gross unrealized losses on debt securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were as follows:

March 31, 2024:	Less than 12 months				12 months or more				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	442	$	(3)	$	1,169,687	$	(179,485)	$	1,170,129	$	(179,488)
Obligations of states and political subdivisions	6,760		(152)		219,908		(28,580)		226,668		(28,732)
Corporate bonds	—		—		5,746		(429)		5,746		(429)
Asset backed securities	94,861		(350)		146,838		(3,477)		241,699		(3,827)
Non-agency collateralized mortgage obligations	43,223		(523)		260,877		(35,477)		304,100		(36,000)
Total debt securities available for sale	$	145,286	$	(1,028)	$	1,803,056	$	(247,448)	$	1,948,342	$	(248,476)
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	—	$	—	$	115,660	$	(9,239)	$	115,660	$	(9,239)
Obligations of states and political subdivisions	1,618		(8)		1,018		(37)		2,636		(45)
Total debt securities held to maturity	$	1,618	$	(8)	$	116,678	$	(9,276)	$	118,296	$	(9,284)

December 31, 2023:	Less than 12 months				12 months or more				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
Debt Securities Available for Sale
Obligations of U.S. government agencies	$	224	$	—	$	1,221,320	$	(165,037)	$	1,221,544	$	(165,037)
Obligations of states and political subdivisions	6,229		(75)		216,497		(26,697)		222,726		(26,772)
Corporate bonds	—		—		5,602		(571)		5,602		(571)
Asset backed securities	15,928		(93)		264,731		(4,095)		280,659		(4,188)
Non-agency collateralized mortgage obligations	44,276		(583)		289,233		(35,195)		333,509		(35,778)
Total debt securities available for sale	$	66,657	$	(751)	$	1,997,383	$	(231,595)	$	2,064,040	$	(232,346)
Debt Securities Held to Maturity
Obligations of U.S. government agencies	$	—	$	—	$	122,259	$	(8,331)	$	122,259	$	(8,331)
Obligations of states and political subdivisions	—		—		1,012		(43)		1,012		(43)
Total debt securities held to maturity	$	—	$	—	$	123,271	$	(8,374)	$	123,271	$	(8,374)

Amortized Cost of Debt Securities Held-to-Maturity

The following table summarizes the amortized cost of debt securities held-to-maturity at the dates indicated, aggregated by credit quality indicator:

	March 31, 2024				December 31, 2023
(in thousands)	AAA/AA/A		BBB/BB/B		AAA/AA/A		BBB/BB/B
Obligations of U.S. government agencies	$	125,131	$	—	$	130,823	$	—
Obligations of states and political subdivisions	2,680		—		2,671		—
Total debt securities held to maturity	$	127,811	$	—	$	133,494	$	—

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Loans (Tables)

3 Months Ended

Mar. 31, 2024

Receivables [Abstract]

Summary of Loan Balances

A summary of loan balances at amortized cost are as follows:

(in thousands)	March 31, 2024		December 31, 2023
Commercial real estate:
CRE non-owner occupied	$	2,220,568	$	2,217,806
CRE owner occupied	974,968		956,440
Multifamily	982,290		949,502
Farmland	265,942		271,054
Total commercial real estate loans	4,443,768		4,394,802
Consumer:
SFR 1-4 1st DT liens	883,520		883,438
SFR HELOCs and junior liens	345,223		356,813
Other	75,014		73,017
Total consumer loans	1,303,757		1,313,268
Commercial and industrial	549,780		586,455
Construction	348,981		347,198
Agriculture production	145,159		144,497
Leases	9,250		8,250
Total loans, net of deferred loan fees and discounts	$	6,800,695	$	6,794,470
Total principal balance of loans owed, net of charge-offs	$	6,839,589	$	6,834,935
Unamortized net deferred loan fees	(15,588)		(15,826)
Discounts to principal balance of loans owed, net of charge-offs	(23,306)		(24,639)
Total loans, net of unamortized deferred loan fees and discounts	$	6,800,695	$	6,794,470
Allowance for credit losses on loans	$	(124,394)	$	(121,522)

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Allowance for Credit Losses (Tables)

3 Months Ended

Mar. 31, 2024

Allowance For Loan And Lease Losses [Abstract]

Summary of Activity in Allowance for Loan Losses, and Ending Balance of Loans, Net of Unearned Fees for Periods Indicated

For the periods indicated, the following tables summarize the activity in the allowance for credit losses on loans which is recorded as a contra asset, and the reserve for unfunded commitments which is recorded on the balance sheet within other liabilities:

	Allowance for credit losses – Three months ended March 31, 2024
(in thousands)	Beginning Balance		Charge-offs		Recoveries		Provision (benefit)		Ending  Balance
Commercial real estate:
CRE non-owner occupied	$	35,077	$	—	$	—	$	1,610	$	36,687
CRE owner occupied	15,081		—		—		1,030		16,111
Multifamily	14,418		—		—		1,264		15,682
Farmland	4,288		—		—		(593)		3,695
Total commercial real estate loans	68,864		—		—		3,311		72,175
Consumer:
SFR 1-4 1st DT liens	14,009		(26)		—		157		14,140
SFR HELOCs and junior liens	10,273		(32)		49		(348)		9,942
Other	3,171		(250)		40		398		3,359
Total consumer loans	27,453		(308)		89		207		27,441
Commercial and industrial	12,750		(130)		22		(775)		11,867
Construction	8,856		—		—		306		9,162
Agriculture production	3,589		(837)		21		935		3,708
Leases	10		—		—		31		41
Allowance for credit losses on loans	121,522		(1,275)		132		4,015		124,394
Reserve for unfunded commitments	5,850		—		—		290		6,140
Total	$	127,372	$	(1,275)	$	132	$	4,305	$	130,534

For the periods indicated, the following tables summarize the activity in the allowance for credit losses on loans which is recorded as a contra asset, and the reserve for unfunded commitments which is recorded on the balance sheet within other liabilities:

	Allowance for credit losses – Year ended December 31, 2023
(in thousands)	Beginning Balance		Charge-offs		Recoveries		Provision (benefit)		Ending Balance
Commercial real estate:
CRE non-owner occupied	$	30,962	$	—	$	—	$	4,115	$	35,077
CRE owner occupied	14,014		(3,637)		2		4,702		15,081
Multifamily	13,132		—		—		1,286		14,418
Farmland	3,273		—		—		1,015		4,288
Total commercial real estate loans	61,381		(3,637)		2		11,118		68,864
Consumer:
SFR 1-4 1st DT liens	11,268		—		262		2,479		14,009
SFR HELOCs and junior liens	11,413		(66)		723		(1,797)		10,273
Other	1,958		(558)		190		1,581		3,171
Total consumer loans	24,639		(624)		1,175		2,263		27,453
Commercial and industrial	13,597		(3,879)		316		2,716		12,750
Construction	5,142		—		—		3,714		8,856
Agriculture production	906		—		34		2,649		3,589
Leases	15		—		—		(5)		10
Allowance for credit losses on loans	105,680		(8,140)		1,527		22,455		121,522
Reserve for unfunded commitments	4,315		—		—		1,535		5,850
Total	$	109,995	$	(8,140)	$	1,527	$	23,990	$	127,372

	Allowance for credit losses – Three months ended March 31, 2023
(in thousands)	Beginning Balance		Charge-offs		Recoveries		Provision (benefit)		Ending Balance
Commercial real estate:
CRE non-owner occupied	$	30,962	$	—	$	—	$	2,001	$	32,963
CRE owner occupied	14,014		—		—		545		14,559
Multifamily	13,132		—		—		741		13,873
Farmland	3,273		—		—		269		3,542
Total commercial real estate loans	61,381		—		—		3,556		64,937
Consumer:
SFR 1-4 1st DT liens	11,268		—		—		652		11,920
SFR HELOCs and junior liens	11,413		(42)		65		(522)		10,914
Other	1,958		(142)		51		195		2,062
Total consumer loans	24,639		(184)		116		325		24,896
Commercial and industrial	13,597		(1,574)		53		(7)		12,069
Construction	5,142		—		—		513		5,655
Agriculture production	906		—		1		(74)		833
Leases	15		—		—		2		17
Allowance for credit losses on loans	105,680		(1,758)		170		4,315		108,407
Reserve for unfunded commitments	4,315		—		—		(120)		4,195
Total	$	109,995	$	(1,758)	$	170	$	4,195	$	112,602

Schedule Credit Quality Indicators

Based on the most recent analysis performed, the risk category of loans by class of loans is as follows for the period indicated:

	Term Loans Amortized Cost Basis by Origination Year – As of March 31, 2024
(in thousands)	2024		2023		2022		2021		2020		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial real estate:
CRE non-owner occupied risk ratings
Pass	$	11,059	$	184,318	$	418,964	$	282,676	$	142,738	$	983,609	$	147,552	$	—	$	2,170,916
Special Mention	—		—		1,295		—		—		34,021		2,252		—		37,568
Substandard	—		—		—		767		—		11,317		—		—		12,084
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	11,059	$	184,318	$	420,259	$	283,443	$	142,738	$	1,028,947	$	149,804	$	—	$	2,220,568
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
CRE owner occupied risk ratings
Pass	$	33,662	$	75,002	$	201,423	$	185,995	$	114,912	$	313,351	$	23,631	$	—	$	947,976
Special Mention	—		—		5,724		2,318		2,935		4,372		—		—		15,349
Substandard	—		—		2,912		7,706		—		1,025		—		—		11,643
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	33,662	$	75,002	$	210,059	$	196,019	$	117,847	$	318,748	$	23,631	$	—	$	974,968
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

	Term Loans Amortized Cost Basis by Origination Year – As of March 31, 2024
(in thousands)	2024		2023		2022		2021		2020		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial real estate:
Multifamily risk ratings
Pass	$	4,063	$	28,655	$	176,410	$	278,671	$	120,526	$	323,784	$	37,749	$	—	$	969,858
Special Mention	—		—		—		11,917		—		515		—		—		$	12,432
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	4,063	$	28,655	$	176,410	$	290,588	$	120,526	$	324,299	$	37,749	$	—	$	982,290
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
Farmland risk ratings
Pass	$	1,396	$	21,093	$	45,682	$	36,854	$	15,571	$	55,897	$	46,551	$	—	$	223,044
Special Mention	—		—		2,984		5,803		427		4,674		1,155		—		15,043
Substandard	—		101		—		8,913		—		11,904		6,937		—		27,855
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	1,396	$	21,194	$	48,666	$	51,570	$	15,998	$	72,475	$	54,643	$	—	$	265,942
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Consumer loans:
SFR 1-4 1st DT liens risk ratings
Pass	$	21,136	$	127,324	$	187,809	$	257,773	$	121,334	$	152,951	$	—	$	3,847	$	872,174
Special Mention	—		70		—		—		—		2,068		—		27		2,165
Substandard	—		268		144		1,280		1,479		5,571		—		439		9,181
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	21,136	$	127,662	$	187,953	$	259,053	$	122,813	$	160,590	$	—	$	4,313	$	883,520
Current period gross write-offs	$	—	$	26	$	—	$	—	$	—	$	—	$	—	$	—	$	26

Consumer loans:
SFR HELOCs and Junior Liens
Pass	$	278	$	—	$	—	$	—	$	—	$	89	$	330,942	$	6,527	$	337,836
Special Mention	—		—		—		—		—		—		3,416		204		3,620
Substandard	—		—		—		—		—		—		3,260		507		3,767
Doubtful/Loss																	—
Total	$	278	$	—	$	—	$	—	$	—	$	89	$	337,618	$	7,238	$	345,223
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	32	$	—	$	32

Consumer loans:
Other risk ratings
Pass	$	9,305	$	30,615	$	8,361	$	7,941	$	6,856	$	10,413	$	618	$	—	$	74,109
Special Mention	—		—		52		131		60		72		20		—		335
Substandard	—		85		177		157		3		146		2		—		570
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	9,305	$	30,700	$	8,590	$	8,229	$	6,919	$	10,631	$	640	$	—	$	75,014
Current period gross write-offs	$	76	$	67	$	—	$	60	$	28	$	15	$	4	$	—	$	250

	Term Loans Amortized Cost Basis by Origination Year – As of March 31, 2024
(in thousands)	2024		2023		2022		2021		2020		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial and industrial loans:
Commercial and industrial risk ratings
Pass	$	17,591	$	62,336	$	70,850	$	46,756	$	7,801	$	15,418	$	316,769	$	246	$	537,767
Special Mention	—		—		743		156		86		—		2,046		—		3,031
Substandard	—		—		2,082		768		83		721		5,255		73		8,982
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	17,591	$	62,336	$	73,675	$	47,680	$	7,970	$	16,139	$	324,070	$	319	$	549,780
Current period gross write-offs	$	10	$	—	$	—	$	—	$	—	$	—	$	120	$	—	$	130

Construction loans:
Construction risk ratings
Pass	$	1,979	$	71,893	$	141,212	$	89,345	$	22,345	$	10,574	$	—	$	—	$	337,348
Special Mention	—		—		11,569		—		—		—		—		—		11,569
Substandard	—		—		—		—		—		64		—		—		64
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	1,979	$	71,893	$	152,781	$	89,345	$	22,345	$	10,638	$	—	$	—	$	348,981
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Agriculture production loans:
Agriculture production risk ratings
Pass	$	586	$	1,378	$	2,857	$	1,539	$	349	$	8,897	$	120,410	$	—	$	136,016
Special Mention	—		33		—		—		—		—		6,928		—		6,961
Substandard	—		—		164		490		152		—		1,376		—		2,182
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	586	$	1,411	$	3,021	$	2,029	$	501	$	8,897	$	128,714	$	—	$	145,159
Current period gross write-offs	$	—	$	—	$	173	$	—	$	—	$	—	$	664	$	—	$	837

Leases:
Lease risk ratings
Pass	$	9,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$9,250
Special Mention	—		—		—		—		—		—		—		—		—
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	9,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	9,250
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Total loans outstanding:
Risk ratings
Pass	$	110,305	$	602,614	$	1,253,568	$	1,187,550	$	552,432	$	1,874,983	$	1,024,222	$	10,620	$	6,616,294
Special Mention	—		103		22,367		20,325		3,508		45,722		15,817		231		108,073
Substandard	—		454		5,479		20,081		1,717		30,748		16,830		1,019		76,328
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	110,305	$	603,171	$	1,281,414	$	1,227,956	$	557,657	$	1,951,453	$	1,056,869	$	11,870	$	6,800,695
Current period gross write-offs	$	86	$	93	$	173	$	60	$	28	$	15	$	820	$	—	$	1,275

	Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2023
(in thousands)	2023		2022		2021		2020		2019		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Commercial real estate:
CRE non-owner occupied risk ratings
Pass	$	180,326	$	413,863	$	290,210	$	137,656	$	206,408	$	792,875	$	141,686	$	—	$	2,163,024
Special Mention	—		1,329		—		5,281		17,093		14,174		1,247		—		39,124
Substandard	—		—		767		—		2,139		12,540		212		—		15,658
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	180,326	$	415,192	$	290,977	$	142,937	$	225,640	$	819,589	$	143,145	$	—	$	2,217,806
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
CRE owner occupied risk ratings
Pass	$	71,288	$	196,915	$	190,384	$	118,457	$	59,220	$	268,990	$	23,740	$	—	$	928,994
Special Mention	—		5,773		1,513		2,754		703		2,678		—		—		13,421
Substandard	—		2,972		7,835		—		111		3,107		—		—		14,025
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	71,288	$	205,660	$	199,732	$	121,211	$	60,034	$	274,775	$	23,740	$	—	$	956,440
Current period gross write-offs	$	—	$	—	$	—	$	1,380	$	—	$	2,228	$	29	$	—	$	3,637

Commercial real estate:
Multifamily risk ratings
Pass	$	28,445	$	177,032	$	279,660	$	89,106	$	104,108	$	225,446	$	33,470	$	—	$	937,267
Special Mention	—		—		11,914		—		—		321		—		—		12,235
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	28,445	$	177,032	$	291,574	$	89,106	$	104,108	$	225,767	$	33,470	$	—	$	949,502
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial real estate:
Farmland risk ratings
Pass	$	21,729	$	46,398	$	37,134	$	16,006	$	16,780	$	41,663	$	50,857	$	—	$	230,567
Special Mention	—		2,170		5,802		51		261		734		—		—		9,018
Substandard	101		813		9,053		377		—		13,266		7,859		—		31,469
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	21,830	$	49,381	$	51,989	$	16,434	$	17,041	$	55,663	$	58,716	$	—	$	271,054
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Consumer loans:
SFR 1-4 1st DT liens risk ratings
Pass	$	135,741	$	189,920	$	260,870	$	125,081	$	29,568	$	126,975	$	—	$	4,079	$	872,234
Special Mention	71		—		—		—		—		1,948		—		27		2,046
Substandard	—		140		1,296		1,490		531		5,265		—		436		9,158
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	135,812	$	190,060	$	262,166	$	126,571	$	30,099	$	134,188	$	—	$	4,542	$	883,438
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

	Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2023
(in thousands)	2023		2022		2021		2020		2019		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Consumer loans:
SFR HELOCs and Junior Liens
Pass	$	297	$	—	$	—	$	—	$	—	$	96	$	343,698	$	6,444	$	350,535
Special Mention	—		—		—		—		—		—		2,274		138		2,412
Substandard	—		—		—		—		—		—		3,212		654		3,866
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	297	$	—	$	—	$	—	$	—	$	96	$	349,184	$	7,236	$	356,813
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	66	$	66

Consumer loans:
Other risk ratings
Pass	$	34,441	$	9,061	$	8,908	$	7,419	$	6,825	$	4,619	$	659	$	—	$	71,932
Special Mention	21		54		203		63		54		37		18		—		450
Substandard	87		183		164		30		116		52		3		—		635
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	34,549	$	9,298	$	9,275	$	7,512	$	6,995	$	4,708	$	680	$	—	$	73,017
Current period gross write-offs	$	376	$	82	$	—	$	36	$	39	$	9	$	16	$	—	$	558

Commercial and industrial loans:
Commercial and industrial risk ratings
Pass	$	70,930	$	83,184	$	51,455	$	9,504	$	10,193	$	7,636	$	340,858	$	318	$	574,078
Special Mention	33		663		237		83		—		178		1,126		—		2,320
Substandard	—		2,014		782		103		4		762		6,318		74		10,057
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	70,963	$	85,861	$	52,474	$	9,690	$	10,197	$	8,576	$	348,302	$	392	$	586,455
Current period gross write-offs	$	153	$	287	$	240	$	2,285	$	—	$	—	$	896	$	18	$	3,879

Construction loans:
Construction risk ratings
Pass	$	56,378	$	136,294	$	85,144	$	47,632	$	4,583	$	6,518	$	—	$	—	$	336,549
Special Mention	—		10,582		—		—		—		—		—		—		10,582
Substandard	—		—		—		—		67		—		—		—		67
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	56,378	$	146,876	$	85,144	$	47,632	$	4,650	$	6,518	$	—	$	—	$	347,198
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Agriculture production loans:
Agriculture production risk ratings
Pass	$	945	$	2,749	$	1,595	$	396	$	620	$	8,491	$	114,935	$	—	$	129,731
Special Mention	—		183		543		176		—		—		11,302		—		12,204
Substandard	—		—		—		—		—		—		2,562		—		2,562
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	945	$	2,932	$	2,138	$	572	$	620	$	8,491	$	128,799	$	—	$	144,497
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

	Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2023
(in thousands)	2023		2022		2021		2020		2019		Prior		Revolving Loans Amortized Cost Basis		Revolving Loans Converted to Term		Total
Leases:
Lease risk ratings
Pass	$	8,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	8,250
Special Mention	—		—		—		—		—		—		—		—		—
Substandard	—		—		—		—		—		—		—		—		—
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	8,250	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	8,250
Current period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Total loans outstanding:
Risk ratings
Pass	$	608,770	$	1,255,416	$	1,205,360	$	551,257	$	438,305	$	1,483,309	$	1,049,903	$	10,841	$	6,603,161
Special Mention	125		20,754		20,212		8,408		18,111		20,070		15,967		165		103,812
Substandard	188		6,122		19,897		2,000		2,968		34,992		20,166		1,164		87,497
Doubtful/Loss	—		—		—		—		—		—		—		—		—
Total	$	609,083	$	1,282,292	$	1,245,469	$	561,665	$	459,384	$	1,538,371	$	1,086,036	$	12,170	$	6,794,470
Current period gross write-offs	$	529	$	369	$	240	$	3,701	$	39	$	2,237	$	941	$	84	$	8,140

Analysis of Past Due Loans

The following table shows the ending balance of current and past due originated loans by loan category as of the date indicated:

	Analysis of Past Due Loans - As of March 31, 2024
(in thousands)	30-59 days		60-89 days		> 90 days		Total Past Due Loans		Current		Total
Commercial real estate:
CRE non-owner occupied	$	1,182	$	232	$	3,104	$	4,518	$	2,216,050	$	2,220,568
CRE owner occupied	1,803		32		244		2,079		972,889		974,968
Multifamily	—		—		—		—		982,290		982,290
Farmland	—		—		4,608		4,608		261,334		265,942
Total commercial real estate loans	2,985		264		7,956		11,205		4,432,563		4,443,768
Consumer:
SFR 1-4 1st DT liens	141		6		534		681		882,839		883,520
SFR HELOCs and junior liens	—		282		572		854		344,369		345,223
Other	76		—		84		160		74,854		75,014
Total consumer loans	217		288		1,190		1,695		1,302,062		1,303,757
Commercial and industrial	482		352		1,270		2,104		547,676		549,780
Construction	52		—		—		52		348,929		348,981
Agriculture production	—		—		1,376		1,376		143,783		145,159
Leases	—		42		—		42		9,208		9,250
Total	$	3,736	$	946	$	11,792	$	16,474	$	6,784,221	$	6,800,695

	Analysis of Past Due Loans - As of December 31, 2023
(in thousands)	30-59 days		60-89 days		> 90 days		Total Past Due Loans		Current		Total
Commercial real estate:
CRE non-owner occupied	$	3,876	$	—	$	1,382	$	5,258	$	2,212,548	$	2,217,806
CRE owner occupied	34		—		247		281		956,159		956,440
Multifamily	—		—		—		—		949,502		949,502
Farmland	635		3,798		2,052		6485		264,569		271,054
Total commercial real estate loans	4,545		3,798		3,681		12,024		4,382,778		4,394,802
Consumer:
SFR 1-4 1st DT liens	141		1,449		490		2,080		881,358		883,438
SFR HELOCs and junior liens	16		—		623		639		356,174		356,813
Other	148		40		30		218		72,799		73,017
Total consumer loans	305		1,489		1,143		2,937		1,310,331		1,313,268
Commercial and industrial	244		605		1,654		2,503		583,952		586,455
Construction	—		—		—		—		347,198		347,198
Agriculture production	593		878		33		1,504		142,993		144,497
Leases	447		—		—		447		7,803		8,250
Total	$	6,134	$	6,770	$	6,511	$	19,415	$	6,775,055	$	6,794,470

Schedule of Non Accrual Loans

The following table shows the ending balance of non accrual loans by loan category as of the date indicated:

	Non Accrual Loans
	As of March 31, 2024						As of December 31, 2023
(in thousands)	Non accrual with no allowance for credit losses		Total non accrual		Past due 90 days or more and still accruing		Non accrual with no allowance for credit losses		Total non accrual		Past due 90 days or more and still accruing
Commercial real estate:
CRE non-owner occupied	$	4,113	$	4,113	$	—	$	2,024	$	2,024	$	—
CRE owner occupied	3,905		3,905		—		3,994		3,994		—
Multifamily	—		—		—		—		—		—
Farmland	8,926		13,780		—		5,996		14,484		—
Total commercial real estate loans	16,944		21,798		—		12,014		20,502		—
Consumer:
SFR 1-4 1st DT liens	4,821		5,094		—		2,808		2,811		—
SFR HELOCs and junior liens	3,110		3,403		—		3,281		3,571		—
Other	64		99		—		39		105		—
Total consumer loans	7,995		8,596		—		6,128		6,487		—
Commercial and industrial	1,535		2,301		107		1,379		2,503		10
Construction	64		64		—		67		67		—
Agriculture production	311		1,376		—		—		2,322		—
Leases	—		—		—		—		—		—
Sub-total	26,849		34,135		107		19,588		31,881		10
Less: Guaranteed loans	(801)		(872)		—		(766)		(878)
Total, net	$	26,048	$	33,263	$	107	$	18,822	$	31,003	$	10

Amortized Cost Basis of Collateral Dependent Loans, By Class of Loan

The following tables present the amortized cost basis of collateral dependent loans by class of loans as of the following periods:

	As of March 31, 2024
(in thousands)	Retail		Office		Warehouse		Other		Multifamily		Farmland		SFR-1st Deed		SFR-2nd Deed		Automobile/Truck		A/R and Inventory		Equipment		Total
Commercial real estate:
CRE non-owner occupied	$	2,459	$	381	$	506	$	767	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	4,113
CRE owner occupied	593		—		293		3,019		—		—		—		—		—		—		—		3,905
Multifamily	—		—		—		—		—		—		—		—		—		—		—		—
Farmland	—		—		—		—		—		13,780		—		—		—		—		—		13,780
Total commercial real estate loans	3,052		381		799		3,786		—		13,780		—		—		—		—		—		21,798
Consumer:
SFR 1-4 1st DT liens	—		—		—		—		—		—		5,089		—		—		—		—		5,089
SFR HELOCs and junior liens	—		—		—		—		—		—		1,403		1,739		—		—		—		3,142
Other	—		—		—		—		—		—		—		—		89		—		—		89
Total consumer loans	—		—		—		—		—		—		6,492		1,739		89		—		—		8,320
Commercial and industrial	—		—		—		—		—		—		—		—		—		1,294		807		2,101
Construction	—		—		—		—		—		—		64		—		—		—		—		64
Agriculture production	—		—		—		1,376		—		—		—		—		—		—		—		1,376
Leases	—		—		—		—		—		—		—		—		—		—		—		—
Total	$	3,052	$	381	$	799	$	5,162	$	—	$	13,780	$	6,556	$	1,739	$	89	$	1,294	$	807	$	33,659

	As of December 31, 2023
(in thousands)	Retail		Office		Warehouse		Other		Multifamily		Farmland		SFR -1st Deed		SFR -2nd Deed		Automobile/Truck		A/R and Inventory		Equipment		Total
Commercial real estate:
CRE non-owner occupied	$	124	$	615	$	519	$	766	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	2,024
CRE owner occupied	614		—		297		3,083		—		—		—		—		—		—		—		3,994
Multifamily	—		—		—		—		—		—		—		—		—		—		—		—
Farmland	—		—		—		635		—		13,849		—		—		—		—		—		14,484
Total commercial real estate loans	738		615		816		4,484		—		13,849		—		—		—		—		—		20,502
Consumer:
SFR 1-4 1st DT liens	—		—		—		—		—		—		2,808		—		—		—		—		2,808
SFR HELOCs and junior liens	—		—		—		—		—		—		1,816		1,467		—		—		—		3,283
Other	—		—		—		—		—		—		—		—		95		—		—		95
Total consumer loans	—		—		—		—		—		—		4,624		1,467		95		—		—		6,186
Commercial and industrial	—		—		—		—		—		—		—		—		—		1,712		791		2,503
Construction	—		—		—		—		—		—		67		—		—		—		—		67
Agriculture production	—		—		—		2,288		—		—		—		—		—		—		33		2,321
Leases	—		—		—		—		—		—		—		—		—		—		—		—
Total	$	738	$	615	$	816	$	6,772	$	—	$	13,849	$	4,691	$	1,467	$	95	$	1,712	$	824	$	31,579

The following tables show the amortized cost basis of loans that were both experiencing financial difficulty and modified during the periods presented. The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivables is also presented below.

	For the three months ended
	March 31, 2024						March 31, 2023
(in thousands)	Combination - Term Extension/Rate Change		Payment Delay/Term Extension		Total % of Loans Outstanding		Payment Delay/Term Extension		Total % of Loans Outstanding
CRE non-owner occupied	$	211	$	—	0.03	%	$	—	—	%
SFR HELOCs and junior liens	—		41		0.01		—		—
Commercial and industrial	—		516		0.07		177		0.03
Total	$	211	$	557	0.11	%	$	177	0.03	%

The following table presents the financial effect of loan modifications made to borrowers experiencing financial difficulty during the quarter ended March 31, 2024.

Modification Type	Loan Type	Financial Effect
Combination - Term extension / rate change	CRE non-owner occupied	Added 120 months to the life of the loan; converted from variable to fixed interest rate
Payment delay / term extension	SFR HELOCs and junior liens	Added 60 months to the life of the loan
Payment delay / term extension	Commercial and industrial	Added 66 months to the life of the loan
Payment delay / term extension	Commercial and industrial	Added 12 months to the life of the loan

The following table presents the financial effect of loan modifications made to borrowers experiencing financial difficulty during the quarter ended March 31, 2023.

Modification Type	Loan Type	Financial Effect
Payment delay / term extension	Commercial and industrial	Added 12 months to the life of the loan to delay balloon repayment

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Leases (Tables)

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Components of Lease Expense

The following table presents the components of lease expense for the periods ended:

	Three months ended March 31,
(in thousands)	2024		2023
Operating lease cost	$	1,434	$	1,609
Short-term lease cost	52		118
Variable lease cost	13		12
Sublease income	—		—
Total lease cost	$	1,499	$	1,739

Supplemental Cash Flow Information Related to Leases

The following table presents supplemental cash flow information related to leases for the periods ended:

	Three months ended March 31,
(in thousands)	2024		2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	1,568	$	1,653
ROUA obtained in exchange for operating lease liabilities	$	1,327	$	4,484

Weighted Average Operating Lease Term And Discount Rate

The following table presents the weighted average operating lease term and discount rate as of the period ended:

	March 31,
	2024		2023
Weighted-average remaining lease term (years)	7.9		8.3
Weighted-average discount rate	3.42	%	3.27	%

Future Expected Operating Lease Payments

At March 31, 2024, future expected operating lease payments are as follows:

(in thousands)
Periods ending December 31,
2024	$	4,376
2025	5,337
2026	4,799
2027	4,114
2028	3,061
Thereafter	10,973
	32,660
Discount for present value of expected cash flows	(4,361)
Lease liability at March 31, 2024	$	28,299

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Deposits (Tables)

3 Months Ended

Mar. 31, 2024

Deposits [Abstract]

Summary of Balances of Deposits

A summary of the balances of deposits follows:

(in thousands)	March 31, 2024		December 31, 2023
Noninterest-bearing demand	$	2,600,448	$	2,722,689
Interest-bearing demand	1,742,875		1,731,814
Savings	2,672,537		2,682,068
Time certificates, $250,000 or more	375,222		250,180
Other time certificates	596,576		447,287
Total deposits	$	7,987,658	$	7,834,038

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Other Borrowings (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Summary of Balances of Other Borrowings

A summary of the balances of other borrowings follows:

	March 31, 2024		December 31, 2023
(in thousands)
Term borrowing at FHLB, fixed rate of 4.75%, payable on April 8, 2024	$	200,000	$	200,000
Overnight borrowing at FHLB, fixed rate of 5.69%, payable on April 1, 2024	167,000		—
Overnight borrowing at FHLB, fixed rate of 5.70%, payable on January 2, 2024	—		400,000
Other collateralized borrowings, fixed rate, as of March 31, 2024 and December 31, 2023 of 0.05%, payable on April 1, 2024 and January 2, 2024, respectively	25,409		32,582
Total other borrowings	$	392,409	$	632,582

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Junior Subordinated Debt (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Summary of Terms and Recorded Balance of Subordinated Debenture

The following table summarizes the terms and recorded balances of each debenture as of the date indicated:

(in thousands)				Coupon Rate (Variable) 3 mo. SOFR +		As of March 31, 2024				As of December 31, 2023
Subordinated Debt Series	Maturity Date	Face Value				Current Coupon Rate		Recorded Book Value		Recorded Book Value
TriCo Cap Trust I	10/7/2033	$	20,619	3.05	%	8.63	%	$	20,619	$	20,619
TriCo Cap Trust II	7/23/2034	20,619		2.55	%	8.13	%	20,619		20,619
North Valley Trust II	4/24/2033	6,186		3.25	%	8.82	%	5,629		5,602
North Valley Trust III	7/23/2034	5,155		2.80	%	8.38	%	4,495		4,472
North Valley Trust IV	3/15/2036	10,310		1.33	%	6.92	%	7,673		7,615
VRB Subordinated	3/29/2029	16,000		3.52	%	9.08	%	16,953		17,000
VRB Subordinated - 5%	8/27/2035	20,000		Fixed		5.00	%	25,132		25,172
		$	98,889					$	101,120	$	101,099

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Summary of Bank's Commitments and Contingent Liabilities

The following table presents a summary of the Bank’s commitments and contingent liabilities:

(in thousands)	March 31, 2024		December 31, 2023
Financial instruments whose amounts represent risk:
Commitments to extend credit:
Commercial loans	$	793,157	$	788,742
Consumer loans	642,028		652,110
Real estate mortgage loans	447,443		453,647
Real estate construction loans	324,254		331,178
Standby letters of credit	41,912		38,449
Deposit account overdraft privilege	129,273		121,539

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Stock Options and Other Equity-Based Incentive Instruments (Tables)

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Stock Option Activity

Stock option activity during the three months ended March 31, 2024, is summarized in the following table:

	Number of Shares	Weighted Average Exercise Price
Outstanding at December 31, 2023	7,500	$	23.21
Options granted	—	—
Options exercised	—	—
Options forfeited	—	—
Outstanding at March 31, 2024	7,500	$	23.21

Summary of Options Outstanding

The following table shows the number, weighted-average exercise price, intrinsic value, and weighted average remaining contractual life of options exercisable, options not yet exercisable and total options outstanding as of March 31, 2024:

	Currently Exercisable		Currently Not Exercisable		Total Outstanding
Number of options	7,500		—		7,500
Weighted average exercise price	$	23.21	$	—	$	23.21
Intrinsic value (in thousands)	$	102	$	—	$	102
Weighted average remaining contractual term (yrs.)	0.5		n/a		0.5

Restricted Stock Unit (RSU) Activity

Activity related to restricted stock unit awards during the three months ended March 31, 2024 is summarized in the following table:

	Service Condition Vesting RSUs	Market Plus Service Condition Vesting RSUs
Outstanding at December 31, 2023	144,487	123,102
RSUs granted	65,167	56,516
RSUs added through dividend and performance credits	1,968	—
RSUs released	—	—
RSUs forfeited	(1,063)	(1,204)
Outstanding at March 31, 2024	210,559	178,414

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Non-interest Income and Expense (Tables)

3 Months Ended

Mar. 31, 2024

Other Income and Expenses [Abstract]

Components of Non-Interest Income

The following table summarizes the Company’s non-interest income for the periods indicated:

	Three months ended March 31,
(in thousands)	2024		2023
ATM and interchange fees	$	6,169	$	6,344
Service charges on deposit accounts	4,663		3,431
Other service fees	1,366		1,166
Mortgage banking service fees	428		465
Change in value of mortgage servicing rights	11		(209)
Total service charges and fees	12,637		11,197
Increase in cash value of life insurance	803		802
Asset management and commission income	1,128		934
Gain on sale of loans	261		206
Lease brokerage income	161		98
Sale of customer checks	312		288
Loss on sale of investment securities	—		(164)
(Loss) gain on marketable equity securities	(28)		42
Other	497		232
Total other non-interest income	3,134		2,438
Total non-interest income	$	15,771	$	13,635

Components of Non Interest Expense

The components of non-interest expense were as follows:

	Three months ended March 31,
(in thousands)	2024		2023
Base salaries, net of deferred loan origination costs	$	24,020	$	23,000
Incentive compensation	3,257		2,895
Benefits and other compensation costs	7,027		6,668
Total salaries and benefits expense	34,304		32,563
Occupancy	3,951		4,160
Data processing and software	5,107		4,032
Equipment	1,356		1,383
Intangible amortization	1,030		1,656
Advertising	762		759
ATM and POS network charges	1,661		1,709
Professional fees	1,340		1,589
Telecommunications	511		595
Regulatory assessments and insurance	1,251		792
Postage	308		299
Operational losses	352		435
Courier service	480		339
(Gain) on sale or acquisition of foreclosed assets	(38)		—
Gain on disposal of fixed assets	5		—
Other miscellaneous expense	4,124		3,483
Total other non-interest expense	22,200		21,231
Total non-interest expense	$	56,504	$	53,794

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Computation of Earnings Per Share

Potential common shares that may be issued by the Company relate to outstanding stock options and restricted stock units (RSUs), and are determined using the treasury stock method. Earnings per share have been computed based on the following:

	Three months ended March 31,
(in thousands)	2024		2023
Net income	$	27,749	$	35,833
Average number of common shares outstanding	33,245		33,296
Effect of dilutive stock options and restricted stock	125		142
Average number of common shares outstanding used to calculate diluted earnings per share	33,370		33,438
Options excluded from diluted earnings per share because of their antidilutive effect	—		—

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Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Components of Other Comprehensive Income (Loss) and Related Tax Effects

The components of other comprehensive income (loss) and related tax effects are as follows:

	Three months ended March 31,
(in thousands)	2024		2023
Unrealized holding gains (losses) on available for sale securities before reclassifications	$	(15,899)	$	34,540
Amounts reclassified out of AOCI:
Realized loss on debt securities	—		164
Unrealized holding gains (losses) on available for sale securities after reclassifications	(15,899)		34,704
Tax effect	4,701		(10,260)
Unrealized holding gains (losses) on available for sale securities, net of tax	(11,198)		24,444
Change in unfunded status of the supplemental retirement plans before reclassifications	459		114
Amounts reclassified out of AOCI:
Amortization of prior service cost	—		—
Amortization of actuarial losses	(459)		(114)
Total amounts reclassified out of accumulated other comprehensive loss	(459)		(114)
Change in unfunded status of the supplemental retirement plans after reclassifications	—		—
Tax effect	—		—
Change in unfunded status of the supplemental retirement plans, net of tax	—		—
Change in joint beneficiary agreement liability before reclassifications	—		—
Tax effect	—		—
Change in joint beneficiary agreement liability before reclassifications, net of tax	—		—
Total other comprehensive income (loss)	$	(11,198)	$	24,444

Components of Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss, included in shareholders’ equity, are as follows:

(in thousands)	March 31, 2024		December 31, 2023
Net unrealized loss on available for sale securities	$	(247,720)	$	(231,821)
Tax effect	73,235		68,534
Unrealized holding loss on available for sale securities, net of tax	(174,485)		(163,287)
Unfunded status of the supplemental retirement plans	13,527		13,527
Tax effect	(3,999)		(3,999)
Unfunded status of the supplemental retirement plans, net of tax	9,528		9,528
Joint beneficiary agreement liability	590		590
Tax effect	—		—
Joint beneficiary agreement liability, net of tax	590		590
Accumulated other comprehensive loss	$	(164,367)	$	(153,169)

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Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Recorded Amount of Assets and Liabilities Measured at Fair Value on Recurring Basis

The table below presents the recorded amount of assets and liabilities measured at fair value on a recurring basis (in thousands):

Fair value at March 31, 2024	Total		Level 1		Level 2		Level 3
Marketable equity securities	$	2,606	$	2,606	$	—	$	—
Debt securities available for sale:
Obligations of U.S. government corporations and agencies	1,170,192		—		1,170,192		—
Obligations of states and political subdivisions	234,177		—		234,177		—
Corporate bonds	5,746		—		5,746		—
Asset backed securities	359,673		—		359,673		—
Non-agency mortgage backed securities	304,100		—		304,100		—
Loans held for sale	1,346		—		1,346		—
Mortgage servicing rights	6,697		—		—		6,697
Total assets measured at fair value	$	2,084,537	$	2,606	$	2,075,234	$	6,697

Fair value at December 31, 2023	Total		Level 1		Level 2		Level 3
Marketable equity securities	$	2,634	$	2,634	$	—	$	—
Debt securities available for sale:
Obligations of U.S. government corporations and agencies	1,221,737		—		1,221,737		—
Obligations of states and political subdivisions	236,375		—		236,375		—
Corporate bonds	5,602		—		5,602		—
Asset backed securities	355,281		—		355,281		—
Non-agency mortgage backed securities	333,509		—		333,509		—
Loans held for sale	458		—		458		—
Mortgage servicing rights	6,606		—		—		6,606
Total assets measured at fair value	$	2,162,202	$	2,634	$	2,152,962	$	6,606

Reconciliation of Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3) on Recurring Basis

The following table provides a reconciliation of assets and liabilities measured at fair value using significant unobservable inputs (Level 3) on a recurring basis during the time periods indicated. Had there been any transfer into or out of Level 3 during the time periods indicated, the amount included in the “Transfers into (out of) Level 3” column would represent the beginning balance of an item in the period (interim quarter) during which it was transferred (in thousands):

Three months ended March 31,	Beginning Balance		Transfers into (out of) Level 3	Change Included in Earnings		Issuances		Ending Balance
2024: Mortgage servicing rights	$	6,606	—	$	11	$	80	$	6,697
2023: Mortgage servicing rights	$	6,712	—	$	(209)	$	50	$	6,553

Quantitative Information about Recurring Level 3 Fair Value Measurements

The following table presents quantitative information about recurring Level 3 fair value measurements at March 31, 2024 and December 31, 2023:

As of March 31, 2024:	Fair Value (in thousands)		Valuation Technique	Unobservable Inputs	Range, Weighted Average
Mortgage Servicing Rights	$	6,697	Discounted cash flow	Constant prepayment rate	6% - 11%; 6.4%
				Discount rate	10% - 14%; 12%
As of December 31, 2023:
Mortgage Servicing Rights	$	6,606	Discounted cash flow	Constant prepayment rate	6% - 12.8%; 7.0%
				Discount rate	10% - 14%; 12%

Assets and Liabilities Measured at Fair Value on Nonrecurring Basis

The tables below present the recorded investment in assets and liabilities measured at fair value on a nonrecurring basis, as of the dates indicated, that had a write-down or an additional allowance provided during the periods indicated (in thousands):

March 31, 2024	Total		Level 1	Level 2	Level 3
Fair value:
Collateral dependent loans	$	5,056	—	—	$	5,056
Foreclosed assets	831		—	—	831
Total assets measured at fair value	$	5,887	—	—	$	5,887

December 31, 2023	Total		Level 1	Level 2	Level 3
Fair value:
Collateral dependent loans	$	4,175	—	—	$	4,175
Foreclosed assets	50		—	—	50
Total assets measured at fair value	$	4,225	—	—	$	4,225

The tables below present the gains (losses) resulting from non-recurring fair value adjustments of assets and liabilities for the periods indicated (in thousands):

	Three months ended March 31,
	2024		2023
Collateral dependent loans	$	128	$	(277)
Foreclosed assets	(224)		—
Total losses from non-recurring measurements	$	(96)	$	(277)

Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on Nonrecurring Basis

The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at March 31, 2024:

March 31, 2024	Fair Value (in thousands)		Valuation Technique	Unobservable Inputs	Range, Weighted Average
Collateral dependent loans	$	5,056	Sales comparison approach Income approach	Adjustment for differences between comparable sales; Capitalization rate	Not meaningful N/A
Foreclosed assets (Residential real estate)	$	831	Sales comparison approach	Adjustment for differences between comparable sales	Not meaningful N/A

The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at December 31, 2023:

December 31, 2023	Fair Value (in thousands)		Valuation Technique	Unobservable Inputs	Range, Weighted Average
Collateral dependent loans	$	4,175	Sales comparison approach Income approach	Adjustment for differences between comparable sales; Capitalization rate	Not meaningful N/A
Foreclosed assets (Residential real estate)	$	50	Sales comparison approach	Adjustment for differences between comparable sales	Not meaningful N/A

Estimated Fair Values of Financial Instruments that are Reported at Amortized Cost in Consolidated Balance Sheets

	March 31, 2024				December 31, 2023
(in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial assets:
Level 1 inputs:
Cash and due from banks	$	73,322	$	73,322	$	81,626	$	81,626
Cash at Federal Reserve and other banks	9,514		9,514		17,075		17,075
Level 2 inputs:
Securities held to maturity	127,811		118,528		133,494		125,126
Restricted equity securities	17,250		N/A		17,250		n/a
Level 3 inputs:
Loans, net	6,676,301		6,291,078		6,672,948		6,278,577
Financial liabilities:
Level 2 inputs:
Deposits	7,987,658		7,982,067		7,834,038		7,828,554
Other borrowings	392,409		329,409		632,582		632,582
Level 3 inputs:
Junior subordinated debt	101,120		101,090		101,099		95,407

(in thousands)	Contract Amount		Fair Value		Contract Amount		Fair Value
Off-balance sheet:
Level 3 inputs:
Commitments	$	2,206,882	$	22,069	$	2,225,677	$	22,257
Standby letters of credit	41,912		419		38,449		385
Overdraft privilege commitments	129,273		1,293		121,539		1,215

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Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2024

Banking Regulation, Global Systemically Important Bank (GSIB) Surcharge [Abstract]

Actual and Required Capital Ratios of Bank

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized
As of March 31, 2024:	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(dollars in thousands)
Total Capital (to Risk Weighted Assets):
Consolidated	$	1,212,626	14.97	%	$	850,469	10.50	%	N/A		N/A
Tri Counties Bank	$	1,202,415	14.85	%	$	850,265	10.50	%	$	809,776	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,068,911	13.20	%	$	688,475	8.50	%	N/A		N/A
Tri Counties Bank	$	1,100,831	13.59	%	$	688,310	8.50	%	$	647,821	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,011,649	12.49	%	$	566,979	7.00	%	N/A		N/A
Tri Counties Bank	$	1,100,831	13.59	%	$	566,843	7.00	%	$	526,355	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	1,068,911	11.01	%	$	388,326	4.00	%	N/A		N/A
Tri Counties Bank	$	1,100,831	11.34	%	$	388,253	4.00	%	$	485,316	5.00	%

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized
As of December 31, 2023:	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(dollars in thousands)
Total Capital (to Risk Weighted Assets):
Consolidated	$	1,196,106	14.73	%	$	852,850	10.50	%	N/A		N/A
Tri Counties Bank	$	1,190,542	14.66	%	$	852,648	10.50	%	$	812,046	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,052,063	12.95	%	$	690,402	8.50	%	N/A		N/A
Tri Counties Bank	$	1,088,717	13.41	%	$	690,239	8.50	%	$	649,637	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	994,907	12.25	%	$	568,566	7.00	%	N/A		N/A
Tri Counties Bank	$	1,088,717	13.41	%	$	568,432	7.00	%	$	527,830	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	1,052,063	10.75	%	$	391,620	4.00	%	N/A		N/A
Tri Counties Bank	$	1,088,717	11.12	%	$	391,574	4.00	%	$	489,468	5.00	%

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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) county segment trust office
Significant Accounting Policies [Line Items]
Number of subsidiary business trusts (in trusts)	5
Number of loan production offices (in offices)	2
Company's investments in the trusts | $	$ 1.8
Number of business segment (in segments) | segment	1
Loans contractual past due	90 days
North Valley Bancorp
Significant Accounting Policies [Line Items]
Number of subsidiary business trusts (in trusts) | office	3
Minimum
Significant Accounting Policies [Line Items]
Loan term	5 years
Amortization period	15 years
Maximum
Significant Accounting Policies [Line Items]
Loan term	10 years
Amortization period	30 years
California
Significant Accounting Policies [Line Items]
Number of counties (in counties) | county	33

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Investment Securities - Amortized Cost and Estimated Fair Values of Investments Securities (Detail) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Debt Securities Available for Sale
Amortized Cost	$ 2,321,608,000	$ 2,384,325,000
Gross Unrealized Gains	756,000	525,000
Gross Unrealized Losses	(248,476,000)	(232,346,000)
Allowance for Credit Losses	0	0
Estimated Fair Value	2,073,888,000	2,152,504,000
Debt Securities Held to Maturity
Totals	127,811,000	133,494,000
Gross Unrealized Gains	1,000	6,000
Gross Unrealized Losses	(9,284,000)	(8,374,000)
Allowance for Credit Losses	0	0
Estimated Fair Value	118,528,000	125,126,000
Obligations of U.S. government agencies
Debt Securities Available for Sale
Amortized Cost	1,349,679,000	1,386,772,000
Gross Unrealized Gains	1,000	2,000
Gross Unrealized Losses	(179,488,000)	(165,037,000)
Allowance for Credit Losses	0	0
Estimated Fair Value	1,170,192,000	1,221,737,000
Debt Securities Held to Maturity
Totals	125,131,000	130,823,000
Gross Unrealized Gains	1,000	0
Gross Unrealized Losses	(9,239,000)	(8,331,000)
Allowance for Credit Losses	0	0
Estimated Fair Value	115,893,000	122,492,000
Obligations of states and political subdivisions
Debt Securities Available for Sale
Amortized Cost	262,777,000	262,879,000
Gross Unrealized Gains	132,000	268,000
Gross Unrealized Losses	(28,732,000)	(26,772,000)
Allowance for Credit Losses	0	0
Estimated Fair Value	234,177,000	236,375,000
Debt Securities Held to Maturity
Totals	2,680,000	2,671,000
Gross Unrealized Gains	0	6,000
Gross Unrealized Losses	(45,000)	(43,000)
Allowance for Credit Losses	0	0
Estimated Fair Value	2,635,000	2,634,000
Corporate bonds
Debt Securities Available for Sale
Amortized Cost	6,175,000	6,173,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(429,000)	(571,000)
Allowance for Credit Losses	0	0
Estimated Fair Value	5,746,000	5,602,000
Asset backed securities
Debt Securities Available for Sale
Amortized Cost	362,877,000	359,214,000
Gross Unrealized Gains	623,000	255,000
Gross Unrealized Losses	(3,827,000)	(4,188,000)
Allowance for Credit Losses	0	0
Estimated Fair Value	359,673,000	355,281,000
Non-agency collateralized mortgage obligations
Debt Securities Available for Sale
Amortized Cost	340,100,000	369,287,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(36,000,000)	(35,778,000)
Allowance for Credit Losses	0	0
Estimated Fair Value	$ 304,100,000	$ 333,509,000

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Investment Securities - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2024 USD ($) investmentSecurity securityLoan	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Investment Securities [Line Items]
Proceeds from the sale of investment securities	$ 0	$ 24,200,000
Gross realized losses from the sale of investment securities		$ 200,000
Securities pledged as collateral	741,500,000		$ 702,200,000
Residential real estate mortgage-backed securities	$ 1,300,000,000
Life of mortgage-backed securities	7 years 3 months
Allowance for credit losses	$ 0		0
Obligations of U.S. government agencies
Investment Securities [Line Items]
Impairment losses recognized	0
Allowance for credit losses	$ 0		0
Number of available for sale securities in unrealized loss position (in investment securities) | investmentSecurity	168
Percentage of aggregate depreciation in unrealized losses	13.29%
Obligations of states and political subdivisions
Investment Securities [Line Items]
Impairment losses recognized	$ 0
Allowance for credit losses	$ 0		0
Number of available for sale securities in unrealized loss position (in investment securities) | investmentSecurity	157
Percentage of aggregate depreciation in unrealized losses	11.25%
Corporate bonds
Investment Securities [Line Items]
Impairment losses recognized	$ 0
Allowance for credit losses	$ 0		0
Number of available for sale securities in unrealized loss position (in investment securities) | investmentSecurity	6
Percentage of aggregate depreciation in unrealized losses	6.95%
Asset backed securities
Investment Securities [Line Items]
Impairment losses recognized	$ 0
Allowance for credit losses	$ 0		0
Number of available for sale securities in unrealized loss position (in investment securities) | investmentSecurity	29
Percentage of aggregate depreciation in unrealized losses	1.56%
Non-agency collateralized mortgage obligations
Investment Securities [Line Items]
Impairment losses recognized	$ 0
Allowance for credit losses	$ 0		$ 0
Number of available for sale securities in unrealized loss position (in investment securities) | securityLoan	22
Allowance for credit loss	$ 0
Percentage of aggregate depreciation in unrealized losses	10.59%

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Investment Securities - Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Amortized Cost
Due in one year	$ 51,718
Due after one year through five years	49,150
Due after five years through ten years	371,852
Due after ten years	1,848,888
Amortized Cost	2,321,608	$ 2,384,325
Estimated Fair Value
Due in one year	51,226
Due after one year through five years	46,062
Due after five years through ten years	358,110
Due after ten years	1,618,490
Totals	2,073,888	2,152,504
Amortized Cost
Due in one year	0
Due after one year through five years	5,396
Due after five years through ten years	92,951
Due after ten years	29,464
Totals	127,811	133,494
Estimated Fair Value
Due in one year	0
Due after one year through five years	5,206
Due after five years through ten years	86,475
Due after ten years	26,847
Totals	$ 118,528	$ 125,126

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Investment Securities - Gross Unrealized Losses on Debt Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities Available for Sale
Less than 12 months, Fair Value	$ 145,286	$ 66,657
Less than 12 months, Unrealized Loss	(1,028)	(751)
12 months or more, Fair Value	1,803,056	1,997,383
12 months or more, Unrealized Loss	(247,448)	(231,595)
Total, Fair Value	1,948,342	2,064,040
Total, Unrealized Loss	(248,476)	(232,346)
Debt Securities Held to Maturity
Less than 12 months, Fair Value	1,618	0
Less than 12 Months, Unrealized Loss	(8)	0
12 months or more, Fair Value	116,678	123,271
12 months or more, Unrealized Loss	(9,276)	(8,374)
Total, Fair Value	118,296	123,271
Total, Unrealized Loss	(9,284)	(8,374)
Obligations of U.S. government agencies
Debt Securities Available for Sale
Less than 12 months, Fair Value	442	224
Less than 12 months, Unrealized Loss	(3)	0
12 months or more, Fair Value	1,169,687	1,221,320
12 months or more, Unrealized Loss	(179,485)	(165,037)
Total, Fair Value	1,170,129	1,221,544
Total, Unrealized Loss	(179,488)	(165,037)
Debt Securities Held to Maturity
Less than 12 months, Fair Value	0	0
Less than 12 Months, Unrealized Loss	0	0
12 months or more, Fair Value	115,660	122,259
12 months or more, Unrealized Loss	(9,239)	(8,331)
Total, Fair Value	115,660	122,259
Total, Unrealized Loss	(9,239)	(8,331)
Obligations of states and political subdivisions
Debt Securities Available for Sale
Less than 12 months, Fair Value	6,760	6,229
Less than 12 months, Unrealized Loss	(152)	(75)
12 months or more, Fair Value	219,908	216,497
12 months or more, Unrealized Loss	(28,580)	(26,697)
Total, Fair Value	226,668	222,726
Total, Unrealized Loss	(28,732)	(26,772)
Debt Securities Held to Maturity
Less than 12 months, Fair Value	1,618	0
Less than 12 Months, Unrealized Loss	(8)	0
12 months or more, Fair Value	1,018	1,012
12 months or more, Unrealized Loss	(37)	(43)
Total, Fair Value	2,636	1,012
Total, Unrealized Loss	(45)	(43)
Corporate bonds
Debt Securities Available for Sale
Less than 12 months, Fair Value	0	0
Less than 12 months, Unrealized Loss	0	0
12 months or more, Fair Value	5,746	5,602
12 months or more, Unrealized Loss	(429)	(571)
Total, Fair Value	5,746	5,602
Total, Unrealized Loss	(429)	(571)
Asset backed securities
Debt Securities Available for Sale
Less than 12 months, Fair Value	94,861	15,928
Less than 12 months, Unrealized Loss	(350)	(93)
12 months or more, Fair Value	146,838	264,731
12 months or more, Unrealized Loss	(3,477)	(4,095)
Total, Fair Value	241,699	280,659
Total, Unrealized Loss	(3,827)	(4,188)
Non-agency collateralized mortgage obligations
Debt Securities Available for Sale
Less than 12 months, Fair Value	43,223	44,276
Less than 12 months, Unrealized Loss	(523)	(583)
12 months or more, Fair Value	260,877	289,233
12 months or more, Unrealized Loss	(35,477)	(35,195)
Total, Fair Value	304,100	333,509
Total, Unrealized Loss	$ (36,000)	$ (35,778)

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Investment Securities - Amortized Cost of Debt Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
AAA/AA/A
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Securities held to maturity	$ 127,811	$ 133,494
BBB/BB/B
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Securities held to maturity	0	0
Obligations of U.S. government agencies | AAA/AA/A
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Securities held to maturity	125,131	130,823
Obligations of U.S. government agencies | BBB/BB/B
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Securities held to maturity	0	0
Obligations of states and political subdivisions | AAA/AA/A
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Securities held to maturity	2,680	2,671
Obligations of states and political subdivisions | BBB/BB/B
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Securities held to maturity	$ 0	$ 0

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Loans - Summary of Loan Balances (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Total	$ 6,800,695	$ 6,794,470
Total principal balance of loans owed, net of charge-offs	6,839,589	6,834,935
Unamortized net deferred loan fees	(15,588)	(15,826)
Discounts to principal balance of loans owed, net of charge-offs	(23,306)	(24,639)
Allowance for credit losses	(124,394)	(121,522)	$ (108,407)	$ (105,680)
Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	4,443,768	4,394,802
Allowance for credit losses	(72,175)	(68,864)	(64,937)	(61,381)
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	1,303,757	1,313,268
Allowance for credit losses	(27,441)	(27,453)	(24,896)	(24,639)
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total	549,780	586,455
Allowance for credit losses	(11,867)	(12,750)	(12,069)	(13,597)
Construction
Loans and Leases Receivable Disclosure [Line Items]
Total	348,981	347,198
Allowance for credit losses	(9,162)	(8,856)	(5,655)	(5,142)
Agriculture production
Loans and Leases Receivable Disclosure [Line Items]
Total	145,159	144,497
Allowance for credit losses	(3,708)	(3,589)	(833)	(906)
Leases
Loans and Leases Receivable Disclosure [Line Items]
Total	9,250	8,250
Allowance for credit losses	(41)	(10)	(17)	(15)
CRE non-owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	2,220,568	2,217,806
Allowance for credit losses	(36,687)	(35,077)	(32,963)	(30,962)
CRE owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	974,968	956,440
Allowance for credit losses	(16,111)	(15,081)	(14,559)	(14,014)
Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	982,290	949,502
Allowance for credit losses	(15,682)	(14,418)	(13,873)	(13,132)
Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	265,942	271,054
Allowance for credit losses	(3,695)	(4,288)	(3,542)	(3,273)
SFR 1-4 1st DT liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	883,520	883,438
Allowance for credit losses	(14,140)	(14,009)	(11,920)	(11,268)
SFR HELOCs and junior liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	345,223	356,813
Allowance for credit losses	(9,942)	(10,273)	(10,914)	(11,413)
Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	75,014	73,017
Allowance for credit losses	$ (3,359)	$ (3,171)	$ (2,062)	$ (1,958)

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Allowance for Credit Losses - Summary of Activity in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 121,522	$ 105,680	$ 105,680
Charge-offs	(1,275)	(1,758)	(8,140)
Recoveries	132	170	1,527
Provision for (Benefit from) Credit Losses	4,015	4,315	22,455
Ending  Balance	124,394	108,407	121,522
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	5,850	4,315	4,315
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	290	(120)	1,535
Ending  Balance	6,140	4,195	5,850
Credit Loss [Roll Forward]
Beginning Balance	127,372	109,995	109,995
Charge-offs	(1,275)	(1,758)	(8,140)
Recoveries	132	170	1,527
Provision for (Benefit from) Credit Losses	4,305	4,195	23,990
Ending  Balance	130,534	112,602	127,372
Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	68,864	61,381	61,381
Charge-offs	0	0	(3,637)
Recoveries	0	0	2
Provision for (Benefit from) Credit Losses	3,311	3,556	11,118
Ending  Balance	72,175	64,937	68,864
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	27,453	24,639	24,639
Charge-offs	(308)	(184)	(624)
Recoveries	89	116	1,175
Provision for (Benefit from) Credit Losses	207	325	2,263
Ending  Balance	27,441	24,896	27,453
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	12,750	13,597	13,597
Charge-offs	(130)	(1,574)	(3,879)
Recoveries	22	53	316
Provision for (Benefit from) Credit Losses	(775)	(7)	2,716
Ending  Balance	11,867	12,069	12,750
Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	8,856	5,142	5,142
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	306	513	3,714
Ending  Balance	9,162	5,655	8,856
Agriculture production
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	3,589	906	906
Charge-offs	(837)	0	0
Recoveries	21	1	34
Provision for (Benefit from) Credit Losses	935	(74)	2,649
Ending  Balance	3,708	833	3,589
Leases
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	10	15	15
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	31	2	(5)
Ending  Balance	41	17	10
CRE non-owner occupied | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	35,077	30,962	30,962
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	1,610	2,001	4,115
Ending  Balance	36,687	32,963	35,077
CRE owner occupied | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	15,081	14,014	14,014
Charge-offs	0	0	(3,637)
Recoveries	0	0	2
Provision for (Benefit from) Credit Losses	1,030	545	4,702
Ending  Balance	16,111	14,559	15,081
Multifamily | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	14,418	13,132	13,132
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	1,264	741	1,286
Ending  Balance	15,682	13,873	14,418
Farmland | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	4,288	3,273	3,273
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	(593)	269	1,015
Ending  Balance	3,695	3,542	4,288
SFR 1-4 1st DT liens | Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	14,009	11,268	11,268
Charge-offs	(26)	0	0
Recoveries	0	0	262
Provision for (Benefit from) Credit Losses	157	652	2,479
Ending  Balance	14,140	11,920	14,009
SFR HELOCs and junior liens | Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	10,273	11,413	11,413
Charge-offs	(32)	(42)	(66)
Recoveries	49	65	723
Provision for (Benefit from) Credit Losses	(348)	(522)	(1,797)
Ending  Balance	9,942	10,914	10,273
Other | Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	3,171	1,958	1,958
Charge-offs	(250)	(142)	(558)
Recoveries	40	51	190
Provision for (Benefit from) Credit Losses	398	195	1,581
Ending  Balance	$ 3,359	$ 2,062	$ 3,171

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Allowance for Credit Losses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Allowance For Loan And Lease Losses [Abstract]
Threshold for loan analysis	$ 1,000
Interest lost on nonaccrual loans	850	$ 320
Interest income on nonaccrual loans	$ 100	$ 20

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Allowance for Credit Losses - Schedule Credit Quality Indicators (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	$ 110,305	$ 609,083
Fiscal year before latest fiscal year	603,171	1,282,292
Two years before latest fiscal year	1,281,414	1,245,469
Three years before latest fiscal year	1,227,956	561,665
Four years before latest fiscal year	557,657	459,384
Prior	1,951,453	1,538,371
Revolving Loans Amortized Cost Basis	1,056,869	1,086,036
Revolving Loans Converted to Term	11,870	12,170
Total	6,800,695	6,794,470
Current period gross write-offs
Current fiscal year	86	529
Fiscal year before latest fiscal year	93	369
Two years before latest fiscal year	173	240
Three years before latest fiscal year	60	3,701
Four years before latest fiscal year	28	39
Prior	15	2,237
Revolving Loans Amortized Cost Basis	820	941
Revolving Loans Converted to Term	0	84
Total	1,275	8,140
Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	4,443,768	4,394,802
Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	1,303,757	1,313,268
Commercial and industrial
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	17,591	70,963
Fiscal year before latest fiscal year	62,336	85,861
Two years before latest fiscal year	73,675	52,474
Three years before latest fiscal year	47,680	9,690
Four years before latest fiscal year	7,970	10,197
Prior	16,139	8,576
Revolving Loans Amortized Cost Basis	324,070	348,302
Revolving Loans Converted to Term	319	392
Total	549,780	586,455
Current period gross write-offs
Current fiscal year	10	153
Fiscal year before latest fiscal year	0	287
Two years before latest fiscal year	0	240
Three years before latest fiscal year	0	2,285
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	120	896
Revolving Loans Converted to Term	0	18
Total	130	3,879
Construction
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	1,979	56,378
Fiscal year before latest fiscal year	71,893	146,876
Two years before latest fiscal year	152,781	85,144
Three years before latest fiscal year	89,345	47,632
Four years before latest fiscal year	22,345	4,650
Prior	10,638	6,518
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	348,981	347,198
Current period gross write-offs
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Agriculture production
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	586	945
Fiscal year before latest fiscal year	1,411	2,932
Two years before latest fiscal year	3,021	2,138
Three years before latest fiscal year	2,029	572
Four years before latest fiscal year	501	620
Prior	8,897	8,491
Revolving Loans Amortized Cost Basis	128,714	128,799
Revolving Loans Converted to Term	0	0
Total	145,159	144,497
Current period gross write-offs
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	173	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	664	0
Revolving Loans Converted to Term	0	0
Total	837	0
Leases
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	9,250	8,250
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	9,250	8,250
Current period gross write-offs
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
CRE non-owner occupied | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	11,059	180,326
Fiscal year before latest fiscal year	184,318	415,192
Two years before latest fiscal year	420,259	290,977
Three years before latest fiscal year	283,443	142,937
Four years before latest fiscal year	142,738	225,640
Prior	1,028,947	819,589
Revolving Loans Amortized Cost Basis	149,804	143,145
Revolving Loans Converted to Term	0	0
Total	2,220,568	2,217,806
Current period gross write-offs
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
CRE owner occupied | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	33,662	71,288
Fiscal year before latest fiscal year	75,002	205,660
Two years before latest fiscal year	210,059	199,732
Three years before latest fiscal year	196,019	121,211
Four years before latest fiscal year	117,847	60,034
Prior	318,748	274,775
Revolving Loans Amortized Cost Basis	23,631	23,740
Revolving Loans Converted to Term	0	0
Total	974,968	956,440
Current period gross write-offs
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	1,380
Four years before latest fiscal year	0	0
Prior	0	2,228
Revolving Loans Amortized Cost Basis	0	29
Revolving Loans Converted to Term	0	0
Total	0	3,637
Multifamily | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	4,063	28,445
Fiscal year before latest fiscal year	28,655	177,032
Two years before latest fiscal year	176,410	291,574
Three years before latest fiscal year	290,588	89,106
Four years before latest fiscal year	120,526	104,108
Prior	324,299	225,767
Revolving Loans Amortized Cost Basis	37,749	33,470
Revolving Loans Converted to Term	0	0
Total	982,290	949,502
Current period gross write-offs
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Farmland | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	1,396	21,830
Fiscal year before latest fiscal year	21,194	49,381
Two years before latest fiscal year	48,666	51,989
Three years before latest fiscal year	51,570	16,434
Four years before latest fiscal year	15,998	17,041
Prior	72,475	55,663
Revolving Loans Amortized Cost Basis	54,643	58,716
Revolving Loans Converted to Term	0	0
Total	265,942	271,054
Current period gross write-offs
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
SFR 1-4 1st DT liens | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	21,136	135,812
Fiscal year before latest fiscal year	127,662	190,060
Two years before latest fiscal year	187,953	262,166
Three years before latest fiscal year	259,053	126,571
Four years before latest fiscal year	122,813	30,099
Prior	160,590	134,188
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	4,313	4,542
Total	883,520	883,438
Current period gross write-offs
Current fiscal year	0	0
Fiscal year before latest fiscal year	26	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	26	0
SFR HELOCs and junior liens | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	278	297
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	89	96
Revolving Loans Amortized Cost Basis	337,618	349,184
Revolving Loans Converted to Term	7,238	7,236
Total	345,223	356,813
Current period gross write-offs
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	32	0
Revolving Loans Converted to Term	0	66
Total	32	66
Other | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	9,305	34,549
Fiscal year before latest fiscal year	30,700	9,298
Two years before latest fiscal year	8,590	9,275
Three years before latest fiscal year	8,229	7,512
Four years before latest fiscal year	6,919	6,995
Prior	10,631	4,708
Revolving Loans Amortized Cost Basis	640	680
Revolving Loans Converted to Term	0	0
Total	75,014	73,017
Current period gross write-offs
Current fiscal year	76	376
Fiscal year before latest fiscal year	67	82
Two years before latest fiscal year	0	0
Three years before latest fiscal year	60	36
Four years before latest fiscal year	28	39
Prior	15	9
Revolving Loans Amortized Cost Basis	4	16
Revolving Loans Converted to Term	0	0
Total	250	558
Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	110,305	608,770
Fiscal year before latest fiscal year	602,614	1,255,416
Two years before latest fiscal year	1,253,568	1,205,360
Three years before latest fiscal year	1,187,550	551,257
Four years before latest fiscal year	552,432	438,305
Prior	1,874,983	1,483,309
Revolving Loans Amortized Cost Basis	1,024,222	1,049,903
Revolving Loans Converted to Term	10,620	10,841
Total	6,616,294	6,603,161
Pass | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	17,591	70,930
Fiscal year before latest fiscal year	62,336	83,184
Two years before latest fiscal year	70,850	51,455
Three years before latest fiscal year	46,756	9,504
Four years before latest fiscal year	7,801	10,193
Prior	15,418	7,636
Revolving Loans Amortized Cost Basis	316,769	340,858
Revolving Loans Converted to Term	246	318
Total	537,767	574,078
Pass | Construction
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	1,979	56,378
Fiscal year before latest fiscal year	71,893	136,294
Two years before latest fiscal year	141,212	85,144
Three years before latest fiscal year	89,345	47,632
Four years before latest fiscal year	22,345	4,583
Prior	10,574	6,518
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	337,348	336,549
Pass | Agriculture production
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	586	945
Fiscal year before latest fiscal year	1,378	2,749
Two years before latest fiscal year	2,857	1,595
Three years before latest fiscal year	1,539	396
Four years before latest fiscal year	349	620
Prior	8,897	8,491
Revolving Loans Amortized Cost Basis	120,410	114,935
Revolving Loans Converted to Term	0	0
Total	136,016	129,731
Pass | Leases
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	9,250	8,250
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	9,250	8,250
Pass | CRE non-owner occupied | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	11,059	180,326
Fiscal year before latest fiscal year	184,318	413,863
Two years before latest fiscal year	418,964	290,210
Three years before latest fiscal year	282,676	137,656
Four years before latest fiscal year	142,738	206,408
Prior	983,609	792,875
Revolving Loans Amortized Cost Basis	147,552	141,686
Revolving Loans Converted to Term	0	0
Total	2,170,916	2,163,024
Pass | CRE owner occupied | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	33,662	71,288
Fiscal year before latest fiscal year	75,002	196,915
Two years before latest fiscal year	201,423	190,384
Three years before latest fiscal year	185,995	118,457
Four years before latest fiscal year	114,912	59,220
Prior	313,351	268,990
Revolving Loans Amortized Cost Basis	23,631	23,740
Revolving Loans Converted to Term	0	0
Total	947,976	928,994
Pass | Multifamily | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	4,063	28,445
Fiscal year before latest fiscal year	28,655	177,032
Two years before latest fiscal year	176,410	279,660
Three years before latest fiscal year	278,671	89,106
Four years before latest fiscal year	120,526	104,108
Prior	323,784	225,446
Revolving Loans Amortized Cost Basis	37,749	33,470
Revolving Loans Converted to Term	0	0
Total	969,858	937,267
Pass | Farmland | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	1,396	21,729
Fiscal year before latest fiscal year	21,093	46,398
Two years before latest fiscal year	45,682	37,134
Three years before latest fiscal year	36,854	16,006
Four years before latest fiscal year	15,571	16,780
Prior	55,897	41,663
Revolving Loans Amortized Cost Basis	46,551	50,857
Revolving Loans Converted to Term	0	0
Total	223,044	230,567
Pass | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	21,136	135,741
Fiscal year before latest fiscal year	127,324	189,920
Two years before latest fiscal year	187,809	260,870
Three years before latest fiscal year	257,773	125,081
Four years before latest fiscal year	121,334	29,568
Prior	152,951	126,975
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	3,847	4,079
Total	872,174	872,234
Pass | SFR HELOCs and junior liens | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	278	297
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	89	96
Revolving Loans Amortized Cost Basis	330,942	343,698
Revolving Loans Converted to Term	6,527	6,444
Total	337,836	350,535
Pass | Other | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	9,305	34,441
Fiscal year before latest fiscal year	30,615	9,061
Two years before latest fiscal year	8,361	8,908
Three years before latest fiscal year	7,941	7,419
Four years before latest fiscal year	6,856	6,825
Prior	10,413	4,619
Revolving Loans Amortized Cost Basis	618	659
Revolving Loans Converted to Term	0	0
Total	74,109	71,932
Special Mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	125
Fiscal year before latest fiscal year	103	20,754
Two years before latest fiscal year	22,367	20,212
Three years before latest fiscal year	20,325	8,408
Four years before latest fiscal year	3,508	18,111
Prior	45,722	20,070
Revolving Loans Amortized Cost Basis	15,817	15,967
Revolving Loans Converted to Term	231	165
Total	108,073	103,812
Special Mention | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	33
Fiscal year before latest fiscal year	0	663
Two years before latest fiscal year	743	237
Three years before latest fiscal year	156	83
Four years before latest fiscal year	86	0
Prior	0	178
Revolving Loans Amortized Cost Basis	2,046	1,126
Revolving Loans Converted to Term	0	0
Total	3,031	2,320
Special Mention | Construction
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	10,582
Two years before latest fiscal year	11,569	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	11,569	10,582
Special Mention | Agriculture production
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	33	183
Two years before latest fiscal year	0	543
Three years before latest fiscal year	0	176
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	6,928	11,302
Revolving Loans Converted to Term	0	0
Total	6,961	12,204
Special Mention | Leases
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Special Mention | CRE non-owner occupied | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	1,329
Two years before latest fiscal year	1,295	0
Three years before latest fiscal year	0	5,281
Four years before latest fiscal year	0	17,093
Prior	34,021	14,174
Revolving Loans Amortized Cost Basis	2,252	1,247
Revolving Loans Converted to Term	0	0
Total	37,568	39,124
Special Mention | CRE owner occupied | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	5,773
Two years before latest fiscal year	5,724	1,513
Three years before latest fiscal year	2,318	2,754
Four years before latest fiscal year	2,935	703
Prior	4,372	2,678
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	15,349	13,421
Special Mention | Multifamily | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	11,914
Three years before latest fiscal year	11,917	0
Four years before latest fiscal year	0	0
Prior	515	321
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	12,432	12,235
Special Mention | Farmland | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	2,170
Two years before latest fiscal year	2,984	5,802
Three years before latest fiscal year	5,803	51
Four years before latest fiscal year	427	261
Prior	4,674	734
Revolving Loans Amortized Cost Basis	1,155	0
Revolving Loans Converted to Term	0	0
Total	15,043	9,018
Special Mention | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	71
Fiscal year before latest fiscal year	70	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	2,068	1,948
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	27	27
Total	2,165	2,046
Special Mention | SFR HELOCs and junior liens | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	3,416	2,274
Revolving Loans Converted to Term	204	138
Total	3,620	2,412
Special Mention | Other | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	21
Fiscal year before latest fiscal year	0	54
Two years before latest fiscal year	52	203
Three years before latest fiscal year	131	63
Four years before latest fiscal year	60	54
Prior	72	37
Revolving Loans Amortized Cost Basis	20	18
Revolving Loans Converted to Term	0	0
Total	335	450
Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	188
Fiscal year before latest fiscal year	454	6,122
Two years before latest fiscal year	5,479	19,897
Three years before latest fiscal year	20,081	2,000
Four years before latest fiscal year	1,717	2,968
Prior	30,748	34,992
Revolving Loans Amortized Cost Basis	16,830	20,166
Revolving Loans Converted to Term	1,019	1,164
Total	76,328	87,497
Substandard | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	2,014
Two years before latest fiscal year	2,082	782
Three years before latest fiscal year	768	103
Four years before latest fiscal year	83	4
Prior	721	762
Revolving Loans Amortized Cost Basis	5,255	6,318
Revolving Loans Converted to Term	73	74
Total	8,982	10,057
Substandard | Construction
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	67
Prior	64	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	64	67
Substandard | Agriculture production
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	164	0
Three years before latest fiscal year	490	0
Four years before latest fiscal year	152	0
Prior	0	0
Revolving Loans Amortized Cost Basis	1,376	2,562
Revolving Loans Converted to Term	0	0
Total	2,182	2,562
Substandard | Leases
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Substandard | CRE non-owner occupied | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	767
Three years before latest fiscal year	767	0
Four years before latest fiscal year	0	2,139
Prior	11,317	12,540
Revolving Loans Amortized Cost Basis	0	212
Revolving Loans Converted to Term	0	0
Total	12,084	15,658
Substandard | CRE owner occupied | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	2,972
Two years before latest fiscal year	2,912	7,835
Three years before latest fiscal year	7,706	0
Four years before latest fiscal year	0	111
Prior	1,025	3,107
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	11,643	14,025
Substandard | Multifamily | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Substandard | Farmland | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	101
Fiscal year before latest fiscal year	101	813
Two years before latest fiscal year	0	9,053
Three years before latest fiscal year	8,913	377
Four years before latest fiscal year	0	0
Prior	11,904	13,266
Revolving Loans Amortized Cost Basis	6,937	7,859
Revolving Loans Converted to Term	0	0
Total	27,855	31,469
Substandard | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	268	140
Two years before latest fiscal year	144	1,296
Three years before latest fiscal year	1,280	1,490
Four years before latest fiscal year	1,479	531
Prior	5,571	5,265
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	439	436
Total	9,181	9,158
Substandard | SFR HELOCs and junior liens | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	3,260	3,212
Revolving Loans Converted to Term	507	654
Total	3,767	3,866
Substandard | Other | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	87
Fiscal year before latest fiscal year	85	183
Two years before latest fiscal year	177	164
Three years before latest fiscal year	157	30
Four years before latest fiscal year	3	116
Prior	146	52
Revolving Loans Amortized Cost Basis	2	3
Revolving Loans Converted to Term	0	0
Total	570	635
Doubtful/Loss
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | Construction
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | Agriculture production
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | Leases
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | CRE non-owner occupied | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | CRE owner occupied | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | Multifamily | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | Farmland | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | SFR HELOCs and junior liens | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year		0
Fiscal year before latest fiscal year		0
Two years before latest fiscal year		0
Three years before latest fiscal year		0
Four years before latest fiscal year		0
Prior		0
Revolving Loans Amortized Cost Basis		0
Revolving Loans Converted to Term		0
Total	0	0
Doubtful/Loss | Other | Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	$ 0	$ 0

XML

Allowance for Credit Losses - Analysis of Past Due and Nonaccrual Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans	$ 6,800,695	$ 6,794,470
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,443,768	4,394,802
Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,303,757	1,313,268
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	549,780	586,455
Construction
Financing Receivable, Past Due [Line Items]
Loans	348,981	347,198
Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	145,159	144,497
Leases
Financing Receivable, Past Due [Line Items]
Loans	9,250	8,250
CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,220,568	2,217,806
CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	974,968	956,440
Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	982,290	949,502
Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	265,942	271,054
SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	883,520	883,438
SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	345,223	356,813
Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	75,014	73,017
Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	6,800,695	6,794,470
Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,443,768	4,394,802
Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,303,757	1,313,268
Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	549,780	586,455
Financial Asset Originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	348,981	347,198
Financial Asset Originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	145,159	144,497
Financial Asset Originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	9,250	8,250
Financial Asset Originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,220,568	2,217,806
Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	974,968	956,440
Financial Asset Originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	982,290	949,502
Financial Asset Originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	265,942	271,054
Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	883,520	883,438
Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	345,223	356,813
Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	75,014	73,017
Total Past Due Loans | Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	16,474	19,415
Total Past Due Loans | Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	11,205	12,024
Total Past Due Loans | Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,695	2,937
Total Past Due Loans | Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	2,104	2,503
Total Past Due Loans | Financial Asset Originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	52	0
Total Past Due Loans | Financial Asset Originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	1,376	1,504
Total Past Due Loans | Financial Asset Originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	42	447
Total Past Due Loans | Financial Asset Originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,518	5,258
Total Past Due Loans | Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,079	281
Total Past Due Loans | Financial Asset Originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
Total Past Due Loans | Financial Asset Originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,608	6,485
Total Past Due Loans | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	681	2,080
Total Past Due Loans | Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	854	639
Total Past Due Loans | Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	160	218
30-59 days | Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	3,736	6,134
30-59 days | Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,985	4,545
30-59 days | Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	217	305
30-59 days | Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	482	244
30-59 days | Financial Asset Originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	52	0
30-59 days | Financial Asset Originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	0	593
30-59 days | Financial Asset Originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	0	447
30-59 days | Financial Asset Originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	1,182	3,876
30-59 days | Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	1,803	34
30-59 days | Financial Asset Originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
30-59 days | Financial Asset Originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	635
30-59 days | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	141	141
30-59 days | Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	0	16
30-59 days | Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	76	148
60-89 days | Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	946	6,770
60-89 days | Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	264	3,798
60-89 days | Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	288	1,489
60-89 days | Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	352	605
60-89 days | Financial Asset Originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	0	0
60-89 days | Financial Asset Originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	0	878
60-89 days | Financial Asset Originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	42	0
60-89 days | Financial Asset Originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	232	0
60-89 days | Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	32	0
60-89 days | Financial Asset Originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
60-89 days | Financial Asset Originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	3,798
60-89 days | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	6	1,449
60-89 days | Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	282	0
60-89 days | Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	0	40
> 90 days | Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	11,792	6,511
> 90 days | Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	7,956	3,681
> 90 days | Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,190	1,143
> 90 days | Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	1,270	1,654
> 90 days | Financial Asset Originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	0	0
> 90 days | Financial Asset Originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	1,376	33
> 90 days | Financial Asset Originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	0	0
> 90 days | Financial Asset Originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	3,104	1,382
> 90 days | Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	244	247
> 90 days | Financial Asset Originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
> 90 days | Financial Asset Originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,608	2,052
> 90 days | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	534	490
> 90 days | Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	572	623
> 90 days | Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	84	30
Current | Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	6,784,221	6,775,055
Current | Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,432,563	4,382,778
Current | Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,302,062	1,310,331
Current | Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	547,676	583,952
Current | Financial Asset Originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	348,929	347,198
Current | Financial Asset Originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	143,783	142,993
Current | Financial Asset Originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	9,208	7,803
Current | Financial Asset Originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,216,050	2,212,548
Current | Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	972,889	956,159
Current | Financial Asset Originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	982,290	949,502
Current | Financial Asset Originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	261,334	264,569
Current | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	882,839	881,358
Current | Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	344,369	356,174
Current | Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	$ 74,854	$ 72,799

XML

Allowance for Credit Losses - Schedule of Non Accrual Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	$ 26,048	$ 18,822
Non accrual, no allowance including guaranteed loans	26,849	19,588
Non accrual including guaranteed loans	34,135	31,881
Total non accrual	33,263	31,003
Past due 90 days or more and still accruing	107	10
Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	801	766
Total non accrual	872	878
Commercial real estate
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	16,944	12,014
Total non accrual	21,798	20,502
Past due 90 days or more and still accruing	0	0
Consumer
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	7,995	6,128
Total non accrual	8,596	6,487
Past due 90 days or more and still accruing	0	0
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	1,535	1,379
Total non accrual	2,301	2,503
Past due 90 days or more and still accruing	107	10
Construction
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	64	67
Total non accrual	64	67
Past due 90 days or more and still accruing	0	0
Agriculture production
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	311	0
Total non accrual	1,376	2,322
Past due 90 days or more and still accruing	0	0
Leases
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	0	0
Total non accrual	0	0
Past due 90 days or more and still accruing	0	0
CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	4,113	2,024
Total non accrual	4,113	2,024
Past due 90 days or more and still accruing	0	0
CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	3,905	3,994
Total non accrual	3,905	3,994
Past due 90 days or more and still accruing	0	0
Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	0	0
Total non accrual	0	0
Past due 90 days or more and still accruing	0	0
Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	8,926	5,996
Total non accrual	13,780	14,484
Past due 90 days or more and still accruing	0	0
SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	4,821	2,808
Total non accrual	5,094	2,811
Past due 90 days or more and still accruing	0	0
SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	3,110	3,281
Total non accrual	3,403	3,571
Past due 90 days or more and still accruing	0	0
Other | Consumer
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	64	39
Total non accrual	99	105
Past due 90 days or more and still accruing	$ 0	$ 0

XML

Allowance for Credit Losses - Amortized Cost Basis of Collateral Dependent Loans, By Class of Loan (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 6,800,695	$ 6,794,470
Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	33,659	31,579
Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,052	738
Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	381	615
Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	799	816
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,162	6,772
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	13,780	13,849
SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,556	4,691
SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,739	1,467
Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	89	95
A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,294	1,712
Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	807	824
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,443,768	4,394,802
Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	21,798	20,502
Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,052	738
Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	381	615
Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	799	816
Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,786	4,484
Commercial real estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	13,780	13,849
Commercial real estate | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial real estate | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial real estate | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial real estate | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial real estate | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,303,757	1,313,268
Consumer | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,320	6,186
Consumer | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,492	4,624
Consumer | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,739	1,467
Consumer | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	89	95
Consumer | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Consumer | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	549,780	586,455
Commercial and industrial | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,101	2,503
Commercial and industrial | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,294	1,712
Commercial and industrial | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	807	791
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	348,981	347,198
Construction | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	64	67
Construction | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	64	67
Construction | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Agriculture production
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	145,159	144,497
Agriculture production | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,376	2,321
Agriculture production | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Agriculture production | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Agriculture production | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Agriculture production | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,376	2,288
Agriculture production | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Agriculture production | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Agriculture production | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Agriculture production | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Agriculture production | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Agriculture production | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Agriculture production | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	33
Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	9,250	8,250
Leases | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Leases | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE non-owner occupied | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,220,568	2,217,806
CRE non-owner occupied | Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,113	2,024
CRE non-owner occupied | Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,459	124
CRE non-owner occupied | Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	381	615
CRE non-owner occupied | Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	506	519
CRE non-owner occupied | Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	767	766
CRE non-owner occupied | Commercial real estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE non-owner occupied | Commercial real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE non-owner occupied | Commercial real estate | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE non-owner occupied | Commercial real estate | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE non-owner occupied | Commercial real estate | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE non-owner occupied | Commercial real estate | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE non-owner occupied | Commercial real estate | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE owner occupied | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	974,968	956,440
CRE owner occupied | Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,905	3,994
CRE owner occupied | Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	593	614
CRE owner occupied | Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE owner occupied | Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	293	297
CRE owner occupied | Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,019	3,083
CRE owner occupied | Commercial real estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE owner occupied | Commercial real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE owner occupied | Commercial real estate | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE owner occupied | Commercial real estate | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE owner occupied | Commercial real estate | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE owner occupied | Commercial real estate | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
CRE owner occupied | Commercial real estate | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	982,290	949,502
Multifamily | Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Farmland | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	265,942	271,054
Farmland | Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	13,780	14,484
Farmland | Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Farmland | Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Farmland | Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Farmland | Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	635
Farmland | Commercial real estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Farmland | Commercial real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	13,780	13,849
Farmland | Commercial real estate | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Farmland | Commercial real estate | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Farmland | Commercial real estate | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Farmland | Commercial real estate | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Farmland | Commercial real estate | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR 1-4 1st DT liens | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	883,520	883,438
SFR 1-4 1st DT liens | Consumer | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,089	2,808
SFR 1-4 1st DT liens | Consumer | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR 1-4 1st DT liens | Consumer | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR 1-4 1st DT liens | Consumer | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR 1-4 1st DT liens | Consumer | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR 1-4 1st DT liens | Consumer | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR 1-4 1st DT liens | Consumer | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR 1-4 1st DT liens | Consumer | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,089	2,808
SFR 1-4 1st DT liens | Consumer | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR 1-4 1st DT liens | Consumer | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR 1-4 1st DT liens | Consumer | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR 1-4 1st DT liens | Consumer | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR HELOCs and junior liens | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	345,223	356,813
SFR HELOCs and junior liens | Consumer | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,142	3,283
SFR HELOCs and junior liens | Consumer | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR HELOCs and junior liens | Consumer | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR HELOCs and junior liens | Consumer | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR HELOCs and junior liens | Consumer | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR HELOCs and junior liens | Consumer | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR HELOCs and junior liens | Consumer | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR HELOCs and junior liens | Consumer | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,403	1,816
SFR HELOCs and junior liens | Consumer | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,739	1,467
SFR HELOCs and junior liens | Consumer | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR HELOCs and junior liens | Consumer | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
SFR HELOCs and junior liens | Consumer | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	75,014	73,017
Other | Consumer | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	89	95
Other | Consumer | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer | SFR-1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer | SFR-2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	89	95
Other | Consumer | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Other | Consumer | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 0	$ 0

XML

Allowance for Credit Losses - Amortized Cost Basis of Loans Experiencing Financial difficulty and Modified (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Combination - Term Extension/Rate Change	$ 211
Payment Delay/Term Extension	$ 557	$ 177
Total % of Loans Outstanding (Percentage)	0.11%	0.03%
CRE non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Combination - Term Extension/Rate Change	$ 211
Payment Delay/Term Extension	$ 0	$ 0
Total % of Loans Outstanding (Percentage)	0.03%	0.00%
SFR HELOCs and junior liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Combination - Term Extension/Rate Change	$ 0
Payment Delay/Term Extension	$ 41	$ 0
Total % of Loans Outstanding (Percentage)	0.01%	0.00%
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Combination - Term Extension/Rate Change	$ 0
Payment Delay/Term Extension	$ 516	$ 177
Total % of Loans Outstanding (Percentage)	0.07%	0.03%

XML

Allowance for Credit Losses - Effect of Loan Modification (Details)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Payment Delay / Term Extension | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted average increase term	66 months	12 months
Payment Delay / Term Extension | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted average increase term	12 months
CRE non-owner occupied | Combination - Term Extension/Rate Change
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted average increase term	120 months
SFR HELOCs and junior liens | Payment Delay / Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted average increase term	60 months

XML

Leases - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2024 renewalOption
Leases [Abstract]
Number of lease renewal options (in renewal options)	1

XML

Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Operating lease cost	$ 1,434	$ 1,609
Short-term lease cost	52	118
Variable lease cost	13	12
Sublease income	0	0
Total lease cost	$ 1,499	$ 1,739

XML

Leases - Supplemental Cash Flow Information Related To Leases (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Operating cash flows for operating leases	$ 1,568	$ 1,653
ROUA obtained in exchange for operating lease liabilities	$ 1,327	$ 4,484

XML

Leases - Weighted Average Operating Lease Term And Discount Rate (Detail)	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Weighted-average remaining lease term (years)	7 years 10 months 24 days	8 years 3 months 18 days
Weighted-average discount rate	3.42%	3.27%

XML

Leases - Future Minimum Rental Payments For Operating Leases (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Leases [Abstract]
2024	$ 4,376
2025	5,337
2026	4,799
2027	4,114
2028	3,061
Thereafter	10,973
Total	32,660
Discount for present value of expected cash flows	(4,361)
Lease liability at March 31, 2023	$ 28,299	$ 28,261

XML

Deposits - Summary of Balances of Deposits (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Deposits [Abstract]
Noninterest-bearing demand	$ 2,600,448	$ 2,722,689
Interest-bearing demand	1,742,875	1,731,814
Savings	2,672,537	2,682,068
Time certificates, $250,000 or more	375,222	250,180
Other time certificates	596,576	447,287
Total deposits	$ 7,987,658	$ 7,834,038

XML

Deposits - Additional Information (Detail) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Deposits [Abstract]
Certificate of deposits	$ 100.0	$ 50.0
Overdrawn deposit balances classified as consumer loans	$ 1.7	$ 1.8

XML

Other Borrowings - Summary of Balances of Other Borrowings (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total other borrowings	$ 392,409	$ 632,582
4.75% Fixed Rated Collateralized Borrowings
Debt Instrument [Line Items]
Other secured financings	$ 200,000	$ 200,000
Collateralized borrowing, fixed rate	4.75%	4.75%
5.69% Fixed Rated Collateralized Borrowings
Debt Instrument [Line Items]
Other secured financings	$ 167,000	$ 0
Collateralized borrowing, fixed rate	5.69%	5.69%
5.70% Fixed Rated Collateralized Borrowings
Debt Instrument [Line Items]
Other secured financings	$ 0	$ 400,000
Collateralized borrowing, fixed rate	5.70%	5.70%
0.05% Fixed Rate Collateralized Borrowings
Debt Instrument [Line Items]
Other secured financings	$ 25,409	$ 32,582
Collateralized borrowing, fixed rate	0.05%	0.05%

XML

Junior Subordinated Debt - Summary of Terms and Recorded Balance of Subordinated Debenture (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 101,120	$ 101,099
Subordinated debt
Subordinated Borrowing [Line Items]
Face Value	98,889
TriCo Cap Trust I
Subordinated Borrowing [Line Items]
Recorded Book Value	20,619	20,619
TriCo Cap Trust I | Subordinated debt
Subordinated Borrowing [Line Items]
Face Value	$ 20,619
Current Coupon Rate	8.63%
TriCo Cap Trust II
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 20,619	20,619
TriCo Cap Trust II | Subordinated debt
Subordinated Borrowing [Line Items]
Face Value	$ 20,619
Current Coupon Rate	8.13%
North Valley Trust II
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 5,629	5,602
North Valley Trust II | Subordinated debt
Subordinated Borrowing [Line Items]
Face Value	$ 6,186
Current Coupon Rate	8.82%
North Valley Trust III
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 4,495	4,472
North Valley Trust III | Subordinated debt
Subordinated Borrowing [Line Items]
Face Value	$ 5,155
Current Coupon Rate	8.38%
North Valley Trust IV
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 7,673	7,615
North Valley Trust IV | Subordinated debt
Subordinated Borrowing [Line Items]
Face Value	$ 10,310
Current Coupon Rate	6.92%
VRB Subordinated
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 16,953	17,000
VRB Subordinated | Subordinated debt
Subordinated Borrowing [Line Items]
Face Value	$ 16,000
Current Coupon Rate	9.08%
VRB Subordinated - 5%
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 25,132	$ 25,172
VRB Subordinated - 5% | Subordinated debt
Subordinated Borrowing [Line Items]
Interest rate	5.00%
Face Value	$ 20,000
Current Coupon Rate	5.00%
SOFR PLUS | TriCo Cap Trust I | Subordinated debt
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. SOFR +	3.05%
SOFR PLUS | TriCo Cap Trust II | Subordinated debt
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. SOFR +	2.55%
SOFR PLUS | North Valley Trust II | Subordinated debt
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. SOFR +	3.25%
SOFR PLUS | North Valley Trust III | Subordinated debt
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. SOFR +	2.80%
SOFR PLUS | North Valley Trust IV | Subordinated debt
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. SOFR +	1.33%
SOFR PLUS | VRB Subordinated | Subordinated debt
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. SOFR +	3.52%

XML

Junior Subordinated Debt - Additional Information (Detail) - Subordinated debt	3 Months Ended
	Mar. 31, 2024
VRB Subordinated
Class of Stock [Line Items]
Current Coupon Rate	9.08%
VRB Subordinated - 5%
Class of Stock [Line Items]
Interest rate	5.00%
Current Coupon Rate	5.00%
VRB Subordinated - 5% | SOFR PLUS
Class of Stock [Line Items]
Basis spread on variable rate	4.90%

XML

Commitments and Contingencies - Summary of Bank's Commitments and Contingent Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit
Real estate construction loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	324,254	331,178
Real estate mortgage loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	447,443	453,647
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	41,912	38,449
Commercial loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	793,157	788,742
Consumer loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	642,028	652,110
Deposit account overdraft privilege
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	$ 129,273	$ 121,539

XML

Shareholders' Equity - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Feb. 25, 2021
Class of Stock [Line Items]
Cash dividends received	$ 20,400,000	$ 18,200,000
Repurchase of common stock	3,408,000	7,595,000
Market value of shares repurchased under equity compensation plans	$ 0	$ 621,000
Employee Stock
Class of Stock [Line Items]
Company's common stock in lieu of cash to exercise options to purchase shares (in shares)	0	0
Other Share Based Awards
Class of Stock [Line Items]
Company's common stock in lieu of cash to exercise options to purchase shares (in shares)	0	12,381
2021 Stock Repurchase Plan
Class of Stock [Line Items]
Repurchase of common stock (in shares)			2,000,000
Stock repurchase program, percentage of common stock			6.70%
Repurchase of common stock (in shares)	99,332	150,000
Repurchase of common stock	$ 3,400,000	$ 7,000,000
Common Stock
Class of Stock [Line Items]
Repurchase of common stock (in shares)	99,332	162,381
Repurchase of common stock	$ 2,083,000	$ 3,399,000
Market value of shares repurchased under equity compensation plans	$ 0	$ 600,000

XML

Stock Options and Other Equity-Based Incentive Instruments - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Apr. 16, 2019
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Weighted-average remaining contractual term (in years)	2 years 2 months 12 days
Restricted Stock Units (RSUs) | Service Condition Vesting RSUs
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of units outstanding expected to vest (in shares)	210,559	144,487
Pre-tax compensation costs	$ 5.4
Number of units released (in shares)	0
Restricted Stock Units (RSUs) | Market Plus Service Condition Vesting RSUs
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of units outstanding expected to vest (in shares)	178,414	123,102
Weighted-average remaining contractual term (in years)	2 years 3 months 18 days
Pre-tax compensation costs	$ 3.0
Number of units released (in shares)	0
Restricted Stock Units (RSUs) | Market Plus Service Condition Vesting RSUs | Minimum
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of units released (in shares)	0
Restricted Stock Units (RSUs) | Market Plus Service Condition Vesting RSUs | Maximum
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of units released (in shares)	267,621
2019 Plan
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Aggregate number of shares of TriCo's common stock issued (in shares)			1,500,000

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Stock Options and Other Equity-Based Incentive Instruments - Stock Option Activity (Detail)	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding at beginning of period (in shares) | shares	7,500
Options granted (in shares) | shares	0
Options exercised (in shares) | shares	0
Options forfeited (in shares) | shares	0
Options outstanding at end of period (in shares) | shares	7,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted Average Exercise Price at beginning of period (in USD per share) | $ / shares	$ 23.21
Weighted Average Exercise Price of Options Granted (in USD per share) | $ / shares	0
Weighted Average Exercise Price of Options Exercised (in USD per share) | $ / shares	0
Weighted Average Exercise Price of Options Forfeited (in USD per share) | $ / shares	0
Weighted Average Exercise Price at end of period (in USD per share) | $ / shares	$ 23.21

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Stock Options and Other Equity-Based Incentive Instruments - Summary of Options Outstanding (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of options (in shares)	7,500	7,500
Weighted average exercise price (in USD per share)	$ 23.21	$ 23.21
Intrinsic value (in thousands)	$ 102
Weighted average remaining contractual term (in years)	6 months
Currently Exercisable
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of options (in shares)	7,500
Weighted average exercise price (in USD per share)	$ 23.21
Intrinsic value (in thousands)	$ 102
Weighted average remaining contractual term (in years)	6 months
Currently Not Exercisable
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of options (in shares)	0
Weighted average exercise price (in USD per share)	$ 0
Intrinsic value (in thousands)	$ 0

XML

Stock Options and Other Equity-Based Incentive Instruments - Restricted Stock Unit (RSU) Activity (Detail) - Restricted Stock Units (RSUs)	3 Months Ended
	Mar. 31, 2024 shares
Service Condition Vesting RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at beginning of period (in shares)	144,487
RSUs granted (in shares)	65,167
RSUs added through dividend and performance credits (in shares)	1,968
RSUs released (in shares)	0
RSUs forfeited (in shares)	(1,063)
Outstanding at end of period (in shares)	210,559
Market Plus Service Condition Vesting RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at beginning of period (in shares)	123,102
RSUs granted (in shares)	56,516
RSUs added through dividend and performance credits (in shares)	0
RSUs released (in shares)	0
RSUs forfeited (in shares)	(1,204)
Outstanding at end of period (in shares)	178,414

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Non-interest Income and Expense - Components of Non-Interest Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees	$ 12,637	$ 11,197
Increase in cash value of life insurance	803	802
Asset management and commission income	1,128	934
Gain on sale of loans	261	206
Lease brokerage income	161	98
Sale of customer checks	312	288
Loss on sale of investment securities	0	(164)
(Loss) gain on marketable equity securities	(28)	42
Other	497	232
Total other non-interest income	3,134	2,438
Total non-interest income	15,771	13,635
ATM and interchange fees
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees	6,169	6,344
Service charges on deposit accounts
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees	4,663	3,431
Other service fees
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees	1,366	1,166
Mortgage banking service fees
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees	428	465
Change in value of mortgage servicing rights
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees	$ 11	$ (209)

XML

Non-interest Income and Expense - Components of Non Interest Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Other Income and Expenses [Abstract]
Base salaries, net of deferred loan origination costs	$ 24,020	$ 23,000
Incentive compensation	3,257	2,895
Benefits and other compensation costs	7,027	6,668
Total salaries and benefits expense	34,304	32,563
Occupancy	3,951	4,160
Data processing and software	5,107	4,032
Equipment	1,356	1,383
Intangible amortization	1,030	1,656
Advertising	762	759
ATM and POS network charges	1,661	1,709
Professional fees	1,340	1,589
Telecommunications	511	595
Regulatory assessments and insurance	1,251	792
Postage	308	299
Operational losses	352	435
Courier service	480	339
(Gain) on sale or acquisition of foreclosed assets	(38)	0
Gain on disposal of fixed assets	5	0
Other miscellaneous expense	4,124	3,483
Total other non-interest expense	22,200	21,231
Total non-interest expense	$ 56,504	$ 53,794

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Earnings Per Share - Computation of Earnings Per Share (Detail) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income	$ 27,749	$ 35,833
Average number of common shares outstanding (in shares)	33,245	33,296
Effect of dilutive stock options and restricted stock (in shares)	125	142
Average number of common shares outstanding used to calculate diluted earnings per share (in shares)	33,370	33,438
Options excluded from diluted earnings per share because of their antidilutive effect (in shares)	0	0

XML

Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) and Related Tax Effects (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)	$ (11,198)	$ 24,444
Unrealized holding gains (losses) on available for sale securities before reclassifications
Accumulated Other Comprehensive Income (Loss) [Line Items]
OCI, before reclassifications, before tax	(15,899)	34,540
Reclassifications, before tax	0	164
OCI, after reclassifications, before tax	(15,899)	34,704
Tax effect	4,701	(10,260)
Other comprehensive income (loss)	(11,198)	24,444
Unfunded status of the supplemental retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
OCI, before reclassifications, before tax	459	114
Reclassifications, before tax	(459)	(114)
OCI, after reclassifications, before tax	0	0
Tax effect	0	0
Other comprehensive income (loss)	0	0
Amortization of prior service cost
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications, before tax	0	0
Amortization of actuarial losses
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications, before tax	(459)	(114)
Joint beneficiary agreement liability
Accumulated Other Comprehensive Income (Loss) [Line Items]
OCI, before reclassifications, before tax	0	0
Tax effect	0	0
OCI, before reclassifications, net of tax	$ 0	$ 0

XML

Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net of tax	$ (164,367)	$ (153,169)
Net unrealized loss on available for sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, before tax	(247,720)	(231,821)
Accumulated other comprehensive income, tax effect	73,235	68,534
Accumulated other comprehensive income, net of tax	(174,485)	(163,287)
Unfunded status of the supplemental retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, before tax	13,527	13,527
Accumulated other comprehensive income, tax effect	(3,999)	(3,999)
Accumulated other comprehensive income, net of tax	9,528	9,528
Joint beneficiary agreement liability
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, before tax	590	590
Accumulated other comprehensive income, tax effect	0	0
Accumulated other comprehensive income, net of tax	$ 590	$ 590

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Fair Value Measurement - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2024 USD ($) investmentSecurity	Mar. 31, 2023 USD ($)
Fair Value Disclosures [Abstract]
Number of investment securities classified as level 3 (in investment securities) | investmentSecurity	0
Carrying value of loans fully charged-off	$ 0
Transfers between levels	$ 0	$ 0

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Fair Value Measurement - Recorded Amount of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value Measurements on Recurring Basis - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 2,084,537	$ 2,162,202
Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,606	2,634
Obligations of U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	1,170,192	1,221,737
Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	234,177	236,375
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,746	5,602
Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	359,673	355,281
Non-agency mortgage backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	304,100	333,509
Loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	1,346	458
Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	6,697	6,606
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,606	2,634
Level 1 | Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,606	2,634
Level 1 | Obligations of U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 1 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 1 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 1 | Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 1 | Non-agency mortgage backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 1 | Loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 1 | Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,075,234	2,152,962
Level 2 | Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 2 | Obligations of U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	1,170,192	1,221,737
Level 2 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	234,177	236,375
Level 2 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,746	5,602
Level 2 | Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	359,673	355,281
Level 2 | Non-agency mortgage backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	304,100	333,509
Level 2 | Loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	1,346	458
Level 2 | Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	6,697	6,606
Level 3 | Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 3 | Obligations of U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 3 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 3 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 3 | Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 3 | Non-agency mortgage backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 3 | Loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0	0
Level 3 | Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 6,697	$ 6,606

XML

Fair Value Measurement - Reconciliation of Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3) on Recurring Basis (Detail) - Mortgage servicing rights - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 6,606	$ 6,712
Transfers into (out of) Level 3	0	0
Change Included in Earnings	11	(209)
Issuances	80	50
Ending Balance	$ 6,697	$ 6,553

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Fair Value Measurement - Quantitative Information about Recurring Level 3 Fair Value Measurements (Detail) - Mortgage servicing rights $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgages servicing rights, fair value	$ 6,697	$ 6,606
Minimum | Valuation Technique, Discounted Cash Flow | Measurement Input, Constant Prepayment Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.06	0.06
Minimum | Valuation Technique, Discounted Cash Flow | Measurement Input, Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.10	0.10
Maximum | Valuation Technique, Discounted Cash Flow | Measurement Input, Constant Prepayment Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.11	0.128
Maximum | Valuation Technique, Discounted Cash Flow | Measurement Input, Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.14	0.14
Weighted Average | Valuation Technique, Discounted Cash Flow | Measurement Input, Constant Prepayment Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.064	0.070
Weighted Average | Valuation Technique, Discounted Cash Flow | Measurement Input, Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.12	0.12

XML

Fair Value Measurement - Assets and Liabilities Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Losses from Fair Value Adjustments Assets and Liabilities	$ (96)	$ (277)
Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,056		$ 4,175
Fair Value Nonrecurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,887		4,225
Fair Value Nonrecurring Basis | Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,056		4,175
Losses from Fair Value Adjustments Assets and Liabilities	128	(277)
Fair Value Nonrecurring Basis | Foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	831		50
Losses from Fair Value Adjustments Assets and Liabilities	(224)	$ 0
Fair Value Nonrecurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0		0
Fair Value Nonrecurring Basis | Level 1 | Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0		0
Fair Value Nonrecurring Basis | Level 1 | Foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0		0
Fair Value Nonrecurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0		0
Fair Value Nonrecurring Basis | Level 2 | Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0		0
Fair Value Nonrecurring Basis | Level 2 | Foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0		0
Fair Value Nonrecurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,887		4,225
Fair Value Nonrecurring Basis | Level 3 | Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,056		4,175
Fair Value Nonrecurring Basis | Level 3 | Foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 831		$ 50

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Fair Value Measurement - Quantitative Information about (Level 3) Fair Value Measurements for Financial Instruments Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Collateral dependent loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 5,056	$ 4,175
Foreclosed assets (Residential real estate)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 831	$ 50

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Fair Value Measurement - Estimated Fair Values of Financial Instruments that are Reported at Amortized Cost in Consolidated Balance Sheets (Detail) - USD ($)	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Financial assets:
Cash and due from banks	$ 73,322,000	$ 81,626,000
Cash at Federal Reserve and other banks	9,514,000	17,075,000
Equity securities, fair value	0		$ 0
Financial liabilities:
Other borrowings	392,409,000	632,582,000
Junior subordinated debt	101,120,000	101,099,000
Level 3 | Overdraft Privilege Commitments
Off-balance sheet:
Contract Amount	129,273,000	121,539,000
Level 3 | Standby letters of credit
Off-balance sheet:
Contract Amount	41,912,000	38,449,000
Level 3 | Commitments
Off-balance sheet:
Contract Amount	2,206,882,000	2,225,677,000
Carrying Amount | Level 1
Financial assets:
Cash and due from banks	73,322,000	81,626,000
Cash at Federal Reserve and other banks	9,514,000	17,075,000
Carrying Amount | Level 2
Financial assets:
Securities held to maturity	127,811,000	133,494,000
Equity securities, fair value	17,250,000	17,250,000
Financial liabilities:
Deposits	7,987,658,000	7,834,038,000
Other borrowings	392,409,000	632,582,000
Carrying Amount | Level 3
Financial assets:
Loans, net	6,676,301,000	6,672,948,000
Financial liabilities:
Junior subordinated debt	101,120,000	101,099,000
Fair Value | Level 1
Financial assets:
Cash and due from banks	73,322,000	81,626,000
Cash at Federal Reserve and other banks	9,514,000	17,075,000
Fair Value | Level 2
Financial assets:
Securities held to maturity	118,528,000	125,126,000
Financial liabilities:
Deposits	7,982,067,000	7,828,554,000
Other borrowings	329,409,000	632,582,000
Fair Value | Level 3
Financial assets:
Loans, net	6,291,078,000	6,278,577,000
Financial liabilities:
Junior subordinated debt	101,090,000	95,407,000
Fair Value | Level 3 | Overdraft Privilege Commitments
Off-balance sheet:
Fair Value	1,293,000	1,215,000
Fair Value | Level 3 | Standby letters of credit
Off-balance sheet:
Fair Value	419,000	385,000
Fair Value | Level 3 | Commitments
Off-balance sheet:
Fair Value	$ 22,069,000	$ 22,257,000

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Regulatory Matters - Actual and Required Capital Ratios of Bank (Detail) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Consolidated
Schedule of Capitalization [Line Items]
Total Capital (to Risk Weighted Assets)	$ 1,212,626	$ 1,196,106
Tier 1 Capital (to Risk Weighted Assets)	1,068,911	1,052,063
Common Equity Tier 1 Capital (to Risk Weighted Assets)	1,011,649	994,907
Tier 1 Capital (to Average Assets)	$ 1,068,911	$ 1,052,063
Total Capital Ratio (to Risk Weighted Assets)	0.1497	0.1473
Tier 1 Capital Ratio (to Risk Weighted Assets)	0.1320	0.1295
Common Equity Tier 1 Capital Ratio (to Risk Weighted Assets)	0.1249	0.1225
Tier 1 Capital Ratio (to Average Assets)	0.1101	0.1075
Consolidated | Basel III Fully Phased In
Schedule of Capitalization [Line Items]
Total Capital (to Risk Weighted Assets), Minimum Capital Requirement	$ 850,469	$ 852,850
Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement	688,475	690,402
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement	566,979	568,566
Tier 1 Capital (to Average Assets), Minimum Capital Requirement	$ 388,326	$ 391,620
Total Capital Ratio (to Risk Weighted Assets), Minimum Capital Requirement	0.1050	0.1050
Tier 1 Capital Ratio (to Risk Weighted Assets), Minimum Capital Requirement	0.0850	0.0850
Common Equity Tier 1 Capital Ratio (to Risk Weighted Assets), Minimum Capital Requirement	7.00%	7.00%
Tier 1 Capital Ratio (to Average Assets), Minimum Capital Requirement	0.0400	0.0400
Tri Counties Bank
Schedule of Capitalization [Line Items]
Total Capital (to Risk Weighted Assets)	$ 1,202,415	$ 1,190,542
Tier 1 Capital (to Risk Weighted Assets)	1,100,831	1,088,717
Common Equity Tier 1 Capital (to Risk Weighted Assets)	1,100,831	1,088,717
Tier 1 Capital (to Average Assets)	$ 1,100,831	$ 1,088,717
Total Capital Ratio (to Risk Weighted Assets)	0.1485	0.1466
Tier 1 Capital Ratio (to Risk Weighted Assets)	0.1359	0.1341
Common Equity Tier 1 Capital Ratio (to Risk Weighted Assets)	0.1359	0.1341
Tier 1 Capital Ratio (to Average Assets)	0.1134	0.1112
Total Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 809,776	$ 812,046
Capital Required to be Well Capitalized to Risk Weighted Assets	0.1000	0.1000
Tier 1 Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 647,821	$ 649,637
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	0.0800	0.0800
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 526,355	$ 527,830
Common Equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	6.50%	6.50%
Tier 1 Capital (to Average Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 485,316	$ 489,468
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	0.0500	0.0500
Tri Counties Bank | Basel III Fully Phased In
Schedule of Capitalization [Line Items]
Total Capital (to Risk Weighted Assets), Minimum Capital Requirement	$ 850,265	$ 852,648
Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement	688,310	690,239
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement	566,843	568,432
Tier 1 Capital (to Average Assets), Minimum Capital Requirement	$ 388,253	$ 391,574
Total Capital Ratio (to Risk Weighted Assets), Minimum Capital Requirement	0.1050	0.1050
Tier 1 Capital Ratio (to Risk Weighted Assets), Minimum Capital Requirement	0.0850	0.0850
Common Equity Tier 1 Capital Ratio (to Risk Weighted Assets), Minimum Capital Requirement	7.00%	7.00%
Tier 1 Capital Ratio (to Average Assets), Minimum Capital Requirement	0.0400	0.0400