TriCo Bancshares (TCBK) 10-K 1 Mar 23 2022 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Feb. 24, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Entity File Number	0-10661
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 Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 1,410,053
Entity Common Stock, Shares Outstanding		33,300,319
Documents Incorporated by Reference	The information required to be disclosed pursuant to Part III of this report either shall be (i) deemed to be incorporated by reference from selected portions of the Registrant’s definitive proxy statement for the annual meeting of shareholders to be held on May 18, 2023, if such proxy statement is filed with the Securities and Exchange Commission pursuant to Regulation 14A not later than 120 days after the end of the Registrant’s most recently completed fiscal year, or (ii) included in an amendment to this report filed with the Commission on Form 10-K/A not later than the end of such 120 day period.
Document Annual Report	true
Document Transition Report	false
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Central Index Key	0000356171
Entity Registrant Name	TriCo Bancshares

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2022
Audit Information [Abstract]
Auditor Firm ID	659
Auditor Name	Moss Adams LLP
Auditor Location	Sacramento, California

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets:
Cash and due from banks	$ 96,323	$ 57,032
Cash at Federal Reserve and other banks	10,907	711,389
Cash and cash equivalents	107,230	768,421
Investment securities:
Marketable equity securities	2,598	2,938
Available for sale debt securities	2,452,438	2,207,938
Held to maturity debt securities	160,983	199,759
Restricted equity securities	17,250	17,250
Loans held for sale	1,846	3,466
Loans	6,450,447	4,916,624
Allowance for credit losses	(105,680)	(85,376)
Total loans, net	6,344,767	4,831,248
Premises and equipment, net	72,327	78,687
Cash value of life insurance	133,742	117,857
Accrued interest receivable	31,856	19,292
Goodwill	304,442	220,872
Other intangible assets, net	16,670	12,369
Operating leases, right-of-use	26,862	25,665
Other assets	257,975	109,025
Total assets	9,930,986	8,614,787
Deposits:
Noninterest-bearing demand	3,502,095	2,979,882
Interest-bearing	4,826,918	4,387,277
Total deposits	8,329,013	7,367,159
Accrued interest payable	1,167	928
Operating lease liability	29,004	26,280
Other liabilities	159,741	112,070
Other borrowings	264,605	50,087
Junior subordinated debt	101,040	58,079
Total liabilities	8,884,570	7,614,603
Commitments and contingencies (Note 15)
Shareholders’ equity:
Preferred stock, no par value: 1,000,000 shares authorized; zero issued and outstanding at December 31, 2022 and 2021, respectively	0	0
Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 33,331,513 and 29,730,424 at December 31, 2022 and 2021, respectively	697,448	532,244
Retained earnings	542,873	466,959
Accumulated other comprehensive income (loss), net of tax	(193,905)	981
Total shareholders’ equity	1,046,416	1,000,184
Total liabilities and shareholders’ equity	$ 9,930,986	$ 8,614,787

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Preferred stock, no par value (in USD per share)	$ 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, no par value (in USD per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	33,331,513	29,730,424
Common stock, shares outstanding (in shares)	33,331,513	29,730,424

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest and dividend income:
Loans, including fees	$ 285,375	$ 242,269	$ 233,721
Investments:
Taxable securities	59,395	29,361	27,627
Tax exempt securities	5,199	3,568	3,566
Dividends	1,137	991	1,032
Interest bearing cash at Federal Reserve and other banks	4,399	858	1,238
Total interest and dividend income	355,505	277,047	267,184
Interest expense:
Deposits	4,689	3,318	6,885
Other borrowings	421	22	17
Junior subordinated debt	4,419	2,168	2,555
Total interest expense	9,529	5,508	9,457
Net interest income	345,976	271,539	257,727
Provision for (benefit from) credit losses	18,470	(6,775)	42,813
Net interest income after provision for (benefit from) credit losses	327,506	278,314	214,914
Noninterest income:
Service charges and fees	49,765	43,948	37,981
Commissions on sale of non-deposit investment products	3,986	3,668	2,989
Increase in cash value of life insurance	2,858	2,775	2,949
Gain on sale of loans	2,342	9,580	9,122
Gain on sale of investment securities	0	0	7
Other	4,095	3,693	2,146
Total noninterest income	63,046	63,664	55,194
Noninterest expense:
Salaries and related benefits	129,852	106,351	112,121
Other	86,793	71,924	70,637
Total noninterest expense	216,645	178,275	182,758
Income before income taxes	173,907	163,703	87,350
Provision for income taxes	48,488	46,048	22,536
Net income	$ 125,419	$ 117,655	$ 64,814
Earnings per share:
Basic (in USD per share)	$ 3.85	$ 3.96	$ 2.17
Diluted (in USD per share)	$ 3.83	$ 3.94	$ 2.16

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 36,343	$ 37,338	$ 31,364	$ 20,374	$ 28,222	$ 27,422	$ 28,362	$ 33,649	$ 125,419	$ 117,655	$ 64,814
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on available for sale securities arising during the period, after reclassifications									(204,376)	(13,788)	11,126
Change in minimum pension liability, after reclassifications									8,101	2,602	6,972
Change in joint beneficiary agreement liability									1,389	(113)	(596)
Other comprehensive income (loss)									(194,886)	(11,299)	17,502
Comprehensive income (loss)									$ (69,467)	$ 106,356	$ 82,316

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (loss)
Beginning balance at Dec. 31, 2019	$ 893,587	$ 543,998	$ 354,811	$ (5,222)
Beginning balance (in shares) at Dec. 31, 2019		30,523,824
Net income	64,814		64,814
Other comprehensive income (loss)	17,502			17,502
Service condition RSU vesting	1,390	$ 1,390
Market plus service condition RSU vesting	646	646
Stock options exercised	547	$ 547
Stock options exercised (in shares)		32,000
Service condition RSUs released (in shares)		34,388
Market plus service conditions RSUs released (in shares)		20,265
Repurchase of common stock	(27,069)	$ (15,746)	(11,323)
Repurchase of common stock (in shares)		(883,263)
Dividends paid	(26,303)		(26,303)
Ending balance at Dec. 31, 2020	925,114	$ 530,835	381,999	12,280
Ending balance (in shares) at Dec. 31, 2020		29,727,214
Net income	117,655		117,655
Other comprehensive income (loss)	(11,299)			(11,299)
Service condition RSU vesting	1,728	$ 1,728
Market plus service condition RSU vesting	910	910
Stock options exercised	$ 758	$ 758
Stock options exercised (in shares)	49,675	49,675
Service condition RSUs released (in shares)		45,492
Market plus service conditions RSUs released (in shares)		19,272
Repurchase of common stock	$ (4,958)	$ (1,987)	(2,971)
Repurchase of common stock (in shares)		(111,229)
Dividends paid	(29,724)		(29,724)
Ending balance at Dec. 31, 2021	$ 1,000,184	$ 532,244	466,959	981
Ending balance (in shares) at Dec. 31, 2021	29,730,424	29,730,424
Net income	$ 125,419		125,419
Other comprehensive income (loss)	(194,886)			(194,886)
Service condition RSU vesting	2,883	$ 2,883
Market plus service condition RSU vesting	986	986
Stock options exercised	$ 1,190	$ 1,190
Stock options exercised (in shares)	63,325	63,325
Service condition RSUs released (in shares)		50,076
Market plus service conditions RSUs released (in shares)		26,338
Issuance of common stock	$ 173,585	$ 173,585
Issuance of common stock (in shares)		4,105,518
Repurchase of common stock	(27,148)	$ (13,440)	(13,708)
Repurchase of common stock (in shares)		(644,168)
Dividends paid	(35,797)		(35,797)
Ending balance at Dec. 31, 2022	$ 1,046,416	$ 697,448	$ 542,873	$ (193,905)
Ending balance (in shares) at Dec. 31, 2022	33,331,513	33,331,513

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Dividends paid (in dollars per share)	$ 0.30	$ 0.30	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 1.20	$ 1	$ 0.88

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net income		$ 125,419,000	$ 117,655,000	$ 64,814,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of premises and equipment, and amortization		6,012,000	6,363,000	6,453,000
Amortization of intangible assets		6,334,000	5,464,000	5,724,000
Provision for (benefit from) credit losses		18,470,000	(6,775,000)	42,813,000
Amortization of investment securities premium, net		6,641,000	6,685,000	2,669,000
Gain on sale of investment securities		0	0	(7,000)
Originations of loans for resale		(71,600,000)	(217,210,000)	(227,831,000)
Proceeds from sale of loans originated for resale		74,922,000	227,938,000	234,424,000
Gain on sale of loans		(2,342,000)	(9,580,000)	(9,122,000)
Change in market value of mortgage servicing rights		(301,000)	872,000	2,634,000
(Gain) loss on sale of real estate owned real estate owned		(166,000)	0	128,000
Deferred income tax expense		(8,022,000)	(936,000)	(14,154,000)
Gain on transfer of loans to real estate owned		(316,000)	(233,000)	(235,000)
Operating lease payments		(5,904,000)	(4,964,000)	(4,927,000)
(Gain) loss on disposal of fixed assets		(1,070,000)	(439,000)	67,000
Increase in cash value of life insurance		(2,858,000)	(2,775,000)	(2,949,000)
Gain on life insurance death benefit		(309,000)	(702,000)	(498,000)
(Gain) loss on marketable equity securities		340,000	86,000	(64,000)
Equity compensation vesting expense		3,869,000	2,638,000	2,036,000
Change in value of other real estate		113,000	9,000	0
Change in:
Interest receivable		(9,170,000)	712,000	(1,107,000)
Interest payable		(287,000)	(434,000)	(1,045,000)
Amortization of operating lease right of use asset		6,033,000	5,452,000	5,393,000
Other assets and liabilities, net		17,087,000	2,381,000	9,586,000
Net cash from operating activities		162,895,000	132,207,000	114,802,000
Investing activities:
Cash acquired in acquisition; net of consideration paid		426,883,000	0	0
Proceeds from maturities of securities available for sale		267,830,000	371,632,000	167,515,000
Proceeds from maturities of securities held to maturity		38,399,000	83,929,000	89,858,000
Proceeds from sale of available for sale securities		0	0	229,000
Purchases of securities available for sale		(699,035,000)	(1,190,690,000)	(617,552,000)
Net redemption of restricted equity securities		0	0	0
Loan origination and principal collections, net		(739,037,000)	(45,812,000)	(415,415,000)
Loans purchased		(22,845,000)	(108,433,000)	(41,126,000)
Proceeds from sale of real estate owned		873,000	1,526,000	570,000
Proceeds from sale of premises and equipment		6,690,000	2,743,000	0
Purchases of premises and equipment		(3,623,000)	(3,196,000)	(2,812,000)
Life insurance proceeds		641,000	4,490,000	2,400,000
Net cash from investing activities		(723,224,000)	(883,811,000)	(816,333,000)
Financing activities:
Net change in deposits		(253,625,000)	861,225,000	1,138,940,000
Net change in other borrowings		214,518,000	23,173,000	8,460,000
Repurchase of common stock, net		(27,148,000)	(4,344,000)	(26,720,000)
Dividends paid		(35,797,000)	(29,724,000)	(26,303,000)
Exercise of stock options, net		1,190,000	144,000	198,000
Net cash from financing activities		(100,862,000)	850,474,000	1,094,575,000
Net change in cash and cash equivalents		(661,191,000)	98,870,000	393,044,000
Cash and cash equivalents at beginning of year		768,421,000	669,551,000	276,507,000
Cash and cash equivalents at end of year		107,230,000	768,421,000	669,551,000
Supplemental disclosure of cash flow activity:
Cash paid for interest expense		9,290,000	5,942,000	10,502,000
Cash paid for income taxes		41,000,000	46,300,000	29,500,000
Supplemental disclosure of noncash activities:
Unrealized gain (loss) on securities available for sale		(290,157,000)	(19,575,000)	15,796,000
Loans transferred to foreclosed assets		1,349,000	1,052,000	766,000
Market value of shares tendered in-lieu of cash to pay for exercise of options and/or related taxes		2,522,000	2,118,000	736,000
Obligations incurred in conjunction with leased assets		6,149,000	2,883,000	4,161,000
Business combination	[1]
[1](1) In the year ended 2022, the VRB acquisition included fair value tangible assets acquired of $1.37 billion, liabilities assumed of $1.28 billion, resulting in goodwill of $0.09 billion.

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parenthetical) $ in Thousands	Dec. 31, 2022 USD ($)
Goodwill	$ 304,442
VRB Acquisition
Fair value of tangible assets	1,370,000
Fair value of liabilities assumed	1,280,000
Goodwill	$ 90,000

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2022
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 and retail banking business in 32 California counties. 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 obtained through acquisition. 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. For financial reporting purposes, the Company’s investments in the Capital Trusts of $1,757,000 are accounted for under the equity method and, accordingly, are included in other assets on the consolidated balance sheets. The subordinated debentures issued and guaranteed by the Company and held by the Capital Trusts are reflected as debt on the Company’s consolidated balance sheets. 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. 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. Business Combinations The Company accounts for acquisitions of businesses using the acquisition method of accounting. Under the acquisition method, assets acquired and liabilities assumed are recorded at their estimated fair values at the date of acquisition. Management utilizes various valuation techniques including discounted cash flow analyses to determine these fair values. Any excess of the purchase price over amounts allocated to the acquired assets, including identifiable intangible assets, and liabilities assumed is recorded as goodwill. Cash and Cash Equivalents For purposes of the consolidated statements of cash flows, cash and cash equivalents include cash on hand, amounts due from banks, and federal funds sold. Net cash flows are reported for loan and deposit transactions and other borrowings. Non-Marketable and Other Equity Securities Non-marketable and other equity securities include qualified public welfare investments and venture capital/private equity funds. Our accounting for investments in non-marketable and other equity securities depends on several factors, including the level of ownership, power to control and the legal structure of the subsidiary making the investment. We base our accounting for such securities on: (i) fair value accounting, (ii) measurement alternative for other investments without a readily determinable fair value, and (iii) equity method accounting. During the twelve months ended December 31, 2022 and 2021, the Company recognized net unrealized gains of $35,000 and $718,000, respectively, in the consolidated statements of net income related to changes in the fair value of non-marketable and other equity securities. Debt Securities The Company classifies its debt securities into one of three categories: trading, available for sale or held to maturity. Trading securities are bought and held principally for the purpose of selling in the near term and changes in the value of these securities are recorded through earnings. Held to maturity securities are those securities which the Company has the ability and intent to hold until maturity. These securities are carried at cost adjusted for amortization of premium and accretion of discount, computed by the effective interest method over their contractual lives. All other securities not included in trading or held to maturity are classified as available for sale. AFS securities are recorded at fair value. Unrealized gains and losses, net of the related tax effect, on available for sale securities are reported as a separate component of other accumulated comprehensive income in shareholders’ equity until realized. Discounts are amortized or accreted over the expected life of the related investment security as an adjustment to yield using the effective interest method. Premiums on callable debt securities are generally amortized to the earliest call date of the security with the exception of mortgage backed securities, where estimated prepayments, if any, are considered. Dividend and interest income are recognized when earned. Realized gains and losses are derived from the amortized cost of the security sold. The Company did not have any debt securities classified as trading during the three year period ended December 31, 2022. The Company has made a policy election to exclude accrued interest from the amortized cost basis of debt securities and report accrued interest separately in the consolidated balance sheets. A debt security is placed on nonaccrual status at the time any principal or interest payments become more than 90 days delinquent or if full collection of interest or principal becomes uncertain. Accrued interest for a security placed on nonaccrual is reversed against interest income. There was no accrued interest related to debt securities reversed against interest income for the years ended December 31, 2022, 2021 and 2020. The Company evaluates available for sale 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 years ended December 31, 2022, 2021 or 2020. For HTM debt securities, the Company measures expected credit losses on held-to-maturity debt securities on a collective basis by major security type, then further disaggregated by sector and bond rating. Accrued interest receivable on held-to-maturity (HTM) debt securities is excluded from the estimate of credit losses. The estimate of expected credit losses considers historical credit loss information that is adjusted for current condition 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 HTM 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 during the years ended December 31, 2022, 2021 or 2020. Restricted Equity Securities Restricted equity securities represent the Company’s investment in the stock of the Federal Home Loan Bank of San Francisco (“FHLB”) and are carried at par value, which reasonably approximates its fair value. While technically these are considered equity securities, there is no market for the FHLB stock. Therefore, the shares are considered as restricted investment securities. Management periodically evaluates FHLB stock for other-than-temporary impairment. Management’s determination of whether these investments are impaired is based on its assessment of the ultimate recoverability of cost rather than by recognizing temporary declines in value. The determination of whether a decline affects the ultimate recoverability of cost is influenced by criteria such as (1) the significance of any decline in net assets of the FHLB as compared to the capital stock amount for the FHLB and the length of time this situation has persisted, (2) commitments by the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance of the FHLB, (3) the impact of legislative and regulatory changes on institutions and, accordingly, the customer base of the FHLB, and (4) the liquidity position of the FHLB. As a member of the FHLB system, the Bank is required to maintain a minimum level of investment in FHLB stock based on specific percentages of its outstanding mortgages, total assets, or FHLB advances. The Bank may request redemption at par value of any stock in excess of the minimum required investment. Stock redemptions are at the discretion of the FHLB. Both cash and stock dividends are reported as income when received. Loans Held for Sale Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or fair value, as determined by aggregate outstanding commitments from investors of current investor yield requirements. Net unrealized losses are recognized through a valuation allowance by charges to non-interest income. Mortgage loans held for sale are generally sold with the mortgage servicing rights retained by the Company. Gains or losses on the sale of loans that are held for sale are recognized at the time of the sale and determined by the difference between net sale proceeds and the net book value of the loans less the estimated fair value of any retained mortgage servicing rights. Loans Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the principal amount outstanding, net of deferred loan fees and costs. Loan origination and commitment fees and certain direct loan origination costs are deferred, and the net amount is amortized as an adjustment to the related loan’s yield over the actual life of the loan. Loans on which the accrual of interest has been discontinued are designated as nonaccrual loans. 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. 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 Company measures credit losses under ASU 2016-03 Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which replaced the incurred loss methodology, and is referred to as the current expected credit loss (CECL) methodology. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized costs, including loan receivables and held-to-maturity debt securities. The allowance for credit losses (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 and U.S. gross domestic product. A loan is considered to be collateral dependent when repayment is expected to be provided substantially through the operation or sale of the collateral. The ACL on collateral dependent loans is measured using the fair value of the underlying collateral, adjusted for costs to sell when applicable, less the amortized cost basis of the financial asset. If the value of underlying collateral is determined to be less than the recorded amount of the loan, a charge-off will be taken. Loans for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, is considered to be a troubled debt restructuring (TDR). The ACL on a TDR is measured using the same method as all other portfolio loans, except when the value of a concession cannot be measured using a method other than the discounted cash flow method. When the value of a concession is measured using the discounted cash flow method, the ACL is determined by discounting the expected future cash flows at the original interest rate of the loan. PCD assets are assets acquired at a discount that is due, in part, to credit quality deterioration since origination which may be determined through observation of missed payments, downgrade in risk rating, deterioration of a borrower's financial trends or other observable factors including subjectivity utilized by management. PCD assets 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 consolidated balance sheets, while the allowance for acquired non-PCD assets, such as loans, is recorded through the provision for credit losses on the consolidated statements of income, 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 fifteen • 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 these 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. Real Estate Owned Real estate owned (REO) includes assets acquired through, or in lieu of, loan foreclosure. REO is held for sale and are initially recorded at fair value less estimated costs to sell at the date of acquisition, establishing a new cost basis. Physical possession of residential real estate property collateralizing a consumer mortgage loan occurs when legal title is obtained upon completion of foreclosure or when the borrower conveys all interest in the property to satisfy the loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Any write-downs based on the asset’s fair value less costs to sell at the date of acquisition are charged to the allowance for loan and lease losses. Any recoveries based on the asset’s fair value less estimated costs to sell in excess of the recorded value of the loan at the date of acquisition are recorded to the allowance for loan and lease losses. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. If fair value declines subsequent to foreclosure, a valuation allowance is recorded through expense. Operating costs after acquisition are expensed. Revenue and expenses from operations and changes in the valuation allowance are included in other non-interest expense, along with the gain or loss on sale of REO. Premises and Equipment Land is carried at cost. Land improvements, buildings and equipment, including those acquired under capital lease, are stated at cost less accumulated depreciation and amortization. Depreciation and amortization expenses are computed using the straight-line method over the shorter of the estimated useful lives of the related assets or lease terms. Asset lives range from 3-10 years for furniture and equipment and 15-40 years for land improvements and buildings. Company Owned Life Insurance The Company has purchased life insurance policies on certain key executives. Company owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement. As a result of current tax law and the nature of these policies, the Bank records any increase in cash value of these policies as nontaxable non-interest income. If the Bank decided to surrender any of the policies prior to the death of the insured, such surrender may result in a tax expense related to the life-to-date cumulative increase in cash value of the policy. If the Bank retains such policies until the death of the insured, the Bank would receive nontaxable proceeds from the insurance company equal to the death benefit of the policies. The Bank has entered into Joint Beneficiary Agreements (JBAs) with certain of the insured that provide some level of sharing of the death benefit, less the cash surrender value, among the Bank and the beneficiaries of the insured upon the receipt of death benefits. Goodwill, Other Intangible and Long-Lived Assets Goodwill represents the excess of costs over fair value of net assets of businesses acquired from a business combination. The Company has an identifiable intangible asset consisting of core deposit intangibles (“CDI”). CDI are amortized over their respective estimated useful lives and reviewed periodically for impairment. Goodwill and other intangible assets acquired in a business combination and determined to have an indefinite useful life are not amortized, but instead tested for impairment at least annually. Other intangible assets with estimable useful lives are amortized over their respective estimated useful lives to their estimated residual values, and reviewed periodically for impairment. As of September 30 of each year, goodwill is tested for impairment, and is tested for impairment more frequently if events and circumstances indicate that the asset might be impaired. An impairment loss is recognized to the extent that the carrying amount exceeds the asset’s fair value. Long-lived assets, such as premises and equipment, and purchased intangibles subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted futur

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2022
Business Combinations [Abstract]
Business Combinations	Business Combinations On March 25, 2022, the Company completed its acquisition of Valley Republic Bancorp (VRB), including the merger of Valley Republic Bank into Tri Counties Bank, with Tri Counties Bank as the surviving entity, in accordance with the terms of the merger agreement dated as of July 27, 2021. The cash and stock transaction was valued at $174,016,000 in aggregate, based on TriCo's closing stock price of $42.48 on March 25, 2022. Under the terms of the merger agreement, the Company issued 4,105,518 shares, in addition to approximately $431,000 in cash paid out for settlement of stock option awards at VRB. The acquisition of VRB has been accounted for as a business combination. The Company recorded the fair values based on the valuations available as of acquisition date, and subject to adjustment up to one year following the merger date of March 25, 2022. During the fourth quarter of 2022, an adjustment to the initial allocation was based on more detailed information obtain about tax-related matters. Management believes the purchase price allocation is now finalized as December 31, 2022. The following table summarizes the consideration paid for VRB and the amounts of assets acquired and liabilities assumed that were recorded at the acquisition date (in thousands): Estimated Fair Value Adjustments Fair Value December 31, 2022 Fair value of consideration transferred: Fair value of shares issued $ 173,585 $ — $ 173,585 Cash consideration 431 — 431 Total fair value of consideration transferred 174,016 — 174,016 Assets acquired: Cash and cash equivalents 427,314 — 427,314 Securities available for sale 109,716 — 109,716 Loans and leases 771,353 — 771,353 Premises and equipment 4,658 — 4,658 Cash value of life insurance 13,609 — 13,609 Core deposit intangible 10,635 — 10,635 Other assets 26,244 3,500 29,744 Total assets acquired 1,363,529 3,500 1,367,029 Liabilities assumed: Deposits (1,215,479) — (1,215,479) Subordinated debt (47,236) — (47,236) SERP liability (3,352) — (3,352) Other liabilities (10,516) — (10,516) Total liabilities assumed (1,276,583) — (1,276,583) Total net assets acquired 86,946 — 90,446 Goodwill recognized $ 87,070 $ (3,500) $ 83,570

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost and estimated fair values of investment securities classified as available for sale and held to maturity are summarized in the following tables: December 31, 2022 Amortized Gross Gross Estimated (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 1,568,408 $ 3 $ (195,642) $ 1,372,769 Obligations of states and political subdivisions 332,625 401 (39,821) 293,205 Corporate bonds 6,164 — (413) 5,751 Asset backed securities 454,943 17 (15,193) 439,767 Non-agency collateralized mortgage obligations 380,847 — (39,901) 340,946 Total debt securities available for sale $ 2,742,987 $ 421 $ (290,970) $ 2,452,438 Debt Securities Held to Maturity Obligations of U.S. government agencies $ 154,830 $ 2 $ (11,013) $ 143,819 Obligations of states and political subdivisions 6,153 13 (47) 6,119 Total debt securities held to maturity $ 160,983 $ 15 $ (11,060) $ 149,938 There was no allowance for credit losses recorded for the held to maturity debt portfolio as of or for the years ended December 31, 2022 and 2021. December 31, 2021 Amortized Gross Gross Estimated (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 1,260,226 $ 8,193 $ (11,030) $ 1,257,389 Obligations of states and political subdivisions 187,197 5,832 (785) 192,244 Corporate bonds 6,722 34 — 6,756 Asset backed securities 408,329 2,354 (1,131) 409,552 Non-agency collateralized mortgage obligations 345,856 — (3,859) 341,997 Total debt securities available for sale $ 2,208,330 $ 16,413 $ (16,805) $ 2,207,938 Debt Securities Held to Maturity Obligations of U.S. government agencies $ 192,068 $ 8,131 $ — $ 200,199 Obligations of states and political subdivisions 7,691 250 — 7,941 Total debt securities held to maturity $ 199,759 $ 8,381 $ — $ 208,140 There were no sales of debt securities during the years ended December 31, 2022 and 2021, respectively. During 2020, proceeds from sales of debt securities totaled $229,000, resulting in gross gains of $7,000. Investment securities with an aggregate carrying value of $595,779,000 and $423,892,000 at December 31, 2022 and 2021, respectively, were pledged as collateral for specific borrowings, lines of credit and local agency deposits. The amortized cost and estimated fair value of debt securities at December 31, 2022 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 December 31, 2022, obligations of U.S. government and agencies with an amortized cost basis totaling $1,533,255,000 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 December 31, 2022, the Company estimates the average remaining life of these mortgage-backed securities issued by U.S. government corporations and agencies to be approximately 6.4 years. Average remaining life is defined as the time span after which the principal balance has been reduced by half. Debt Securities Available for Sale Held to Maturity (In thousands) Amortized Estimated Amortized Estimated Due in one year $ 57,685 $ 56,111 $ — $ — Due after one year through five years 125,533 120,116 3,730 3,616 Due after five years through ten years 418,008 395,462 14,721 13,998 Due after ten years 2,141,761 1,880,749 142,532 132,324 Totals $ 2,742,987 $ 2,452,438 $ 160,983 $ 149,938 Gross unrealized losses on investment 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: Less than 12 months 12 months or more Total Fair Unrealized Fair Unrealized Fair Unrealized December 31, 2022 (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 766,612 $ (134,234) $ 605,615 $ (61,408) $ 1,372,227 $ (195,642) Obligations of states and political subdivisions 43,282 (12,917) 219,532 (26,904) 262,814 (39,821) Corporate bonds — — 5,751 (413) 5,751 (413) Asset backed securities 205,329 (10,238) 231,703 (4,955) 437,032 (15,193) Non-agency collateralized mortgage obligations 203,620 (36,480) 123,075 (3,421) 326,695 (39,901) Total debt securities available for sale $ 1,218,843 $ (193,869) $ 1,185,676 $ (97,101) $ 2,404,519 $ (290,970) Debt Securities Held to Maturity Obligations of U.S. government agencies $ — $ — $ 143,577 $ (11,013) $ 143,577 $ (11,013) Obligations of states and political subdivisions — — 4,530 (47) 4,530 (47) Total debt securities held to maturity $ — $ — $ 148,107 $ (11,060) $ 148,107 $ (11,060) Less than 12 months 12 months or more Total Fair Unrealized Fair Unrealized Fair Unrealized December 31, 2021 (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 947,108 $ (9,737) $ 44,086 $ (1,293) $ 991,194 $ (11,030) Obligations of states and political subdivisions 56,153 (785) — — 56,153 (785) Asset backed securities 62,792 (259) 109,748 (872) 172,540 (1,131) Non-agency collateralized mortgage obligations 327,045 (3,859) — — 327,045 (3,859) Total securities available for sale $ 1,393,098 $ (14,640) $ 153,834 $ (2,165) $ 1,546,932 $ (16,805) Obligations of U.S. government agencies: Unrealized losses on investments in obligations of U.S. government corporations and agencies are caused by interest rate increases. 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 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, these investments are not considered other-than-temporarily impaired. At December 31, 2022, 172 debt securities representing obligations of U.S. government corporations and agencies had unrealized losses with aggregate depreciation of 12.48% 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 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, these investments are not considered other-than-temporarily impaired. At December 31, 2022, 202 debt security representing obligations of states and political subdivisions had unrealized losses with aggregate depreciation of 13.16% 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 as of and for the year ended December 31, 2022. At December 31, 2022, 6 asset backed securities had unrealized losses with aggregate depreciation of 6.70% 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 in these types of securities. At the time of purchase, each of these securities were rated AA or AAA and through December 31, 2022 have not experienced any deterioration in credit rating. 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, these investments are not considered other-than-temporarily impaired. At December 31, 2022, 48 asset backed securities had unrealized losses with aggregate depreciation of 3.36% from the Company’s amortized cost basis. 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 December 31, 2022. At December 31, 2022, 22 asset backed securities had unrealized losses with aggregate depreciation of 10.88% from the Company’s amortized cost basis. Marketable equity securities: As there were no sales of marketable equity securities, all unrealized gains or losses recognized during the reporting period were for equity securities still held as of the end of the reporting period. 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: December 31, 2022 December 31, 2021 AAA/AA/A BBB/BB/B AAA/AA/A BBB/BB/B (In thousands) (In thousands) Debt Securities Held to Maturity Obligations of U.S. government agencies $ 154,830 $ — $ 192,068 $ — Obligations of states and political subdivisions 6,153 — 7,691 — Total debt securities held to maturity $ 160,983 $ — $ 199,759 $ —

Loans

Loans	12 Months Ended
	Dec. 31, 2022
Receivables [Abstract]
Loans	Loans A summary of loan balances follows: (in thousands) December 31, 2022 December 31, 2021 Commercial real estate: CRE non-owner occupied $ 2,149,725 $ 1,603,141 CRE owner occupied 984,807 706,307 Multifamily 944,537 823,500 Farmland 280,014 173,106 Total commercial real estate loans 4,359,083 3,306,054 Consumer: SFR 1-4 1st DT liens 790,349 666,960 SFR HELOCs and junior liens 393,666 337,513 Other 56,728 67,078 Total consumer loans 1,240,743 1,071,551 Commercial and industrial 569,921 259,355 Construction 211,560 222,281 Agriculture production 61,414 50,811 Leases 7,726 6,572 Total loans, net of deferred loan fees and discounts $ 6,450,447 $ 4,916,624 Total principal balance of loans owed, net of charge-offs $ 6,496,210 $ 4,946,653 Unamortized net deferred loan fees (15,275) (13,922) Discounts to principal balance of loans owed, net of charge-offs (30,488) (16,107) Total loans, net of unamortized deferred loan fees and discounts $ 6,450,447 $ 4,916,624 Allowance for credit losses $ (105,680) $ (85,376) In March 2020, the Small Business Administration ("SBA") Paycheck Protection Program ("PPP") was created to help small businesses keep workers employed during the COVID-19 crisis. As of December 31, 2022 and 2021, the total gross balance outstanding of PPP loans, which are included in commercial and industrial loans above, was $1,617,000 and $63,311,000, respectively, as compared to total PPP originations of $640,410,000. As of December 31, 2022, there was approximately $15,000 in net deferred fee income remaining to be recognized. During the year ended December 31, 2022, the Company recognized $2,149,000 in fees on PPP loans, as compared with $14,148,000 and $7,760,000 for the years ended December 31, 2021 and 2020, respectively. The SBA ended PPP and did not accept new borrowing applications, effective May 31, 2021.

Allowance for Credit Losses

Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2022
Allowance For Loan And Lease Losses [Abstract]
Allowance for Credit Losses	Allowance for Credit Losses The ACL was $105,680,000 as of December 31, 2022 as compared to $85,376,000 at December 31, 2021. The provision for credit losses on loans of $17,945,000 during the year ended December 31, 2022 was comprised of $10,820,000 in day 1 required reserves from loans acquired in connection with the VRB merger in the first quarter of 2022. Additionally, the Company designated certain loans and leases purchased from VRB as PCD, which required $2,037,000 in additional credit reserves as of the acquisition date. For PCD loans and leases, the initial estimate of expected credit losses is recognized in the ACL on the date of acquisition using the same methodology as other loans and leases held-for-investment. The remaining increase in the allowance for credit reserves was the result of changes in loan volume and changes in credit quality associated with levels of classified, past due and non-performing loans in addition to changes in qualitative factors. The quantitative component of the ACL increased reserve requirements due to loan volume growth and increases in specific reserves. In addition to the quantitative loan portfolio, credit quality characteristics which are illustrated in the following tabular disclosures, the Company’s expected credit loss methodology (CECL) incorporates the use of qualitative factors. The qualitative components of the ACL resulted in a net increase in required reserves despite continued improvement in US employment rates, due to increased uncertainty in the global economic markets, US economic policy uncertainty, and the continued rise in corporate debt yields. As compared to historical norms, inflation remains elevated from continued disruptions in the supply chain, wage pressures, and higher living costs such as housing and food prices. Management notes the rapid intervals of rate increases by the Federal Reserve and inversion of the yield curve, have boosted expectations of the US entering a recession within 12 months. As a result, management continues to believe that certain credit weakness are likely present in the overall economy and that it is appropriate to maintain an allowance for credit losses that incorporates such risk factors. The table below sets forth the components of the Company’s allowance for credit losses as of the dates indicated: (dollars in thousands) December 31, 2022 December 31, 2021 Allowance for credit losses: Qualitative and forecast factor allowance $ 70,777 $ 59,855 Quantitative (Cohort) model allowance reserves 32,489 24,539 Total allowance for credit losses 103,266 84,394 Allowance for individually evaluated loans 2,414 982 Total allowance for credit losses $ 105,680 $ 85,376 The following table provides a summary of loans and leases purchased as part of the VRB acquisition with credit deterioration (PCD) at acquisition: As of March 25, 2022 (in thousands) Commercial Real Estate Consumer Commercial and Industrial Construction Agriculture Production Total Par value $ 27,237 $ 3,877 $ 2,674 $ 25,645 $ 9,080 $ 68,513 ACL at acquisition (1,573) (144) (81) (201) (38) (2,037) Non-credit discount (2,305) (360) (47) (232) (12) (2,956) Purchase price $ 23,359 $ 3,373 $ 2,546 $ 25,212 $ 9,030 $ 63,520 The following tables summarize the activity in the allowance for credit losses, and ending balance of loans, net of unearned fees for the periods indicated. Allowance for Credit Losses – December 31, 2022 (in thousands) Beginning ACL on PCD Loans Charge-offs Recoveries Provision for Ending Commercial real estate: CRE non-owner occupied $ 25,739 $ 746 $ — $ 1 $ 4,476 $ 30,962 CRE owner occupied 10,691 63 — 2 3,258 14,014 Multifamily 12,395 — — — 737 13,132 Farmland 2,315 764 (294) — 488 3,273 Total commercial real estate loans 51,140 1,573 (294) 3 8,959 61,381 Consumer: SFR 1-4 1st DT liens 10,723 144 — 79 322 11,268 SFR HELOCs and junior liens 10,510 — (22) 429 496 11,413 Other 2,241 — (572) 235 54 1,958 Total consumer loans 23,474 144 (594) 743 872 24,639 Commercial and industrial 3,862 81 (697) 1,157 9,194 13,597 Construction 5,667 201 — — (726) 5,142 Agriculture production 1,215 38 — 4 (351) 906 Leases 18 — — — (3) 15 Allowance for credit losses on loans 85,376 2,037 (1,585) 1,907 17,945 105,680 Reserve for unfunded commitments 3,790 — — — 525 4,315 Total $ 89,166 $ 2,037 $ (1,585) $ 1,907 $ 18,470 $ 109,995 Allowance for Credit Losses – December 31, 2021 (in thousands) Beginning Charge-offs Recoveries Provision for Ending Commercial real estate: CRE non-owner occupied $ 29,380 $ — $ 12 $ (3,653) $ 25,739 CRE owner occupied 10,861 (18) 794 (946) 10,691 Multifamily 11,472 — — 923 12,395 Farmland 1,980 (126) — 461 2,315 Total commercial real estate loans 53,693 (144) 806 (3,215) 51,140 Consumer: SFR 1-4 1st DT liens 10,117 (145) 13 738 10,723 SFR HELOCs and junior liens 11,771 (29) 1,127 (2,359) 10,510 Other 3,260 (577) 361 (803) 2,241 Total consumer loans 25,148 (751) 1,501 (2,424) 23,474 Commercial and industrial 4,252 (1,470) 755 325 3,862 Construction 7,540 (27) — (1,846) 5,667 Agriculture production 1,209 — 24 (18) 1,215 Leases 5 — — 13 18 Allowance for credit losses on loans 91,847 (2,392) 3,086 (7,165) 85,376 Reserve for unfunded commitments 3,400 — — 390 3,790 Total $ 95,247 $ (2,392) $ 3,086 $ (6,775) $ 89,166 Allowance for Credit Losses – December 31, 2020 (in thousands) Beginning Impact of CECL Adoption Charge-offs Recoveries Provision for Ending Commercial real estate: CRE non-owner occupied $ 5,948 $ 6,701 $ — $ 198 $ 16,533 $ 29,380 CRE owner occupied 2,027 2,281 — 28 6,525 10,861 Multifamily 3,352 2,281 — — 5,839 11,472 Farmland 668 585 (182) — 909 1,980 Total commercial real estate loans 11,995 11,848 (182) 226 29,806 53,693 Consumer: SFR 1-4 1st DT liens 2,306 2,675 (13) 416 4,733 10,117 SFR HELOCs and junior liens 6,183 4,638 (116) 304 762 11,771 Other 1,595 971 (670) 347 1,017 3,260 Total consumer loans 10,084 8,284 (799) 1,067 6,512 25,148 Commercial and industrial 4,867 (1,961) (774) 568 1,552 4,252 Construction 3,388 933 — — 3,219 7,540 Agriculture production 261 (179) — 24 1,103 1,209 Leases 21 (12) — — (4) 5 Allowance for credit losses on loans 30,616 18,913 (1,755) 1,885 42,188 91,847 Reserve for unfunded commitments 2,775 — — — 625 3,400 Total $ 33,391 $ 18,913 $ (1,755) $ 1,885 $ 42,813 $ 95,247 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 $1,000,000 and non-homogeneous loans, such as commercial real estate loans, unless other indicators, such as delinquency, trigger more frequent evaluation. Loans below the $1,000,000 threshold and homogenous in nature are evaluated as needed for proper grading based on delinquency and borrower credit scores. Collateral values may be determined by appraisals obtained through Bank approved, licensed appraisers, qualified independent third parties, public value information (blue book values for autos), sales invoices, or other appropriate means. Appropriate valuations are obtained at initiation of the credit and periodically (every 3-12 months depending on collateral type) once repayment is questionable and the loan has been classified. 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. The following tables present ending loan balances by loan category and risk grade for the periods indicated: Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2022 (in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: CRE non-owner occupied risk ratings Pass $ 399,910 $ 304,636 $ 152,960 $ 221,659 $ 147,842 $ 748,994 $ 123,794 $ — $ 2,099,795 Special Mention — — — 20,033 — 21,681 1,346 — 43,060 Substandard — 864 768 — 1,059 4,179 — — 6,870 Doubtful/Loss — — — — — — — — — Total CRE non-owner occupied risk ratings $ 399,910 $ 305,500 $ 153,728 $ 241,692 $ 148,901 $ 774,854 $ 125,140 $ — $ 2,149,725 Commercial real estate: CRE owner occupied risk ratings Pass $ 210,101 $ 197,787 $ 120,929 $ 64,244 $ 49,755 $ 251,137 $ 43,343 $ — $ 937,296 Special Mention 131 16,296 234 731 — 6,971 879 — 25,242 Substandard 3,213 — 5,249 1,893 1,103 10,654 157 — 22,269 Doubtful/Loss — — — — — — — — — Total CRE owner occupied risk ratings $ 213,445 $ 214,083 $ 126,412 $ 66,868 $ 50,858 $ 268,762 $ 44,379 $ — $ 984,807 Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2022 (in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: Multifamily risk ratings Pass $ 159,318 $ 290,170 $ 96,937 $ 108,586 $ 106,287 $ 154,125 $ 28,989 $ — $ 944,412 Special Mention — — — — — — — — — Substandard — — — — — 125 — — 125 Doubtful/Loss — — — — — — — — — Total multifamily loans $ 159,318 $ 290,170 $ 96,937 $ 108,586 $ 106,287 $ 154,250 $ 28,989 $ — $ 944,537 Commercial real estate: Farmland risk ratings Pass $ 47,067 $ 53,275 $ 16,739 $ 18,589 $ 12,386 $ 34,528 $ 53,684 $ — $ 236,268 Special Mention 3,139 783 246 5,000 — 3,991 14,275 — 27,434 Substandard — — 1,772 765 3,158 7,094 3,523 — 16,312 Doubtful/Loss — — — — — — — — — Total farmland loans $ 50,206 $ 54,058 $ 18,757 $ 24,354 $ 15,544 $ 45,613 $ 71,482 $ — $ 280,014 Consumer loans: SFR 1-4 1st DT liens risk ratings Pass $ 194,933 $ 265,370 $ 131,922 $ 33,395 $ 28,545 $ 115,469 $ 8 $ 2,924 $ 772,566 Special Mention — — 1,531 282 3,277 5,854 — 465 11,409 Substandard — 1,204 — — 1,004 3,521 — 645 6,374 Doubtful/Loss — — — — — — — — — Total SFR 1st DT liens $ 194,933 $ 266,574 $ 133,453 $ 33,677 $ 32,826 $ 124,844 $ 8 $ 4,034 $ 790,349 Consumer loans: SFR HELOCs and Junior Liens risk ratings Pass $ 505 $ — $ — $ — $ — $ 127 $ 378,939 $ 8,462 $ 388,033 Special Mention — — — — — — 1,842 81 1,923 Substandard — — — — — — 3,072 638 3,710 Doubtful/Loss — — — — — — — — — Total SFR HELOCs and Junior Liens $ 505 $ — $ — $ — $ — $ 127 $ 383,853 $ 9,181 $ 393,666 Consumer loans: Other risk ratings Pass $ 14,070 $ 12,990 $ 10,211 $ 10,650 $ 5,225 $ 1,945 $ 899 $ — $ 55,990 Special Mention — 18 77 135 176 32 47 — 485 Substandard — — 42 92 — 96 23 — 253 Doubtful/Loss — — — — — — — — — Total other consumer loans $ 14,070 $ 13,008 $ 10,330 $ 10,877 $ 5,401 $ 2,073 $ 969 $ — $ 56,728 Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2022 (in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial and industrial loans: Commercial and industrial risk ratings Pass $ 125,710 $ 64,966 $ 17,746 $ 23,131 $ 7,628 $ 5,051 $ 297,341 $ 483 $ 542,056 Special Mention 3,032 139 21 49 138 768 11,547 — 15,694 Substandard 1,293 1,142 5,179 14 33 611 3,798 101 12,171 Doubtful/Loss — — — — — — — — Total commercial and industrial loans $ 130,035 $ 66,247 $ 22,946 $ 23,194 $ 7,799 $ 6,430 $ 312,686 $ 584 $ 569,921 Construction loans: Construction risk ratings Pass $ 72,840 $ 72,308 $ 43,409 $ 15,358 $ 2,159 $ 4,900 $ — $ — $ 210,974 Special Mention — — — — — — — — — Substandard — — — 457 — 129 — — 586 Doubtful/Loss — — — — — — — — — Total construction loans $ 72,840 $ 72,308 $ 43,409 $ 15,815 $ 2,159 $ 5,029 $ — $ — $ 211,560 Agriculture production loans: Agriculture production risk ratings Pass $ 3,414 $ 2,777 $ 1,149 $ 1,104 $ 8,902 $ 1,058 $ 38,425 $ — $ 56,829 Special Mention — — — — 90 31 1,632 — 1,753 Substandard — — — — — — 2,832 — 2,832 Doubtful/Loss — — — — — — — — — Total agriculture production loans $ 3,414 $ 2,777 $ 1,149 $ 1,104 $ 8,992 $ 1,089 $ 42,889 $ — $ 61,414 Leases: Lease risk ratings Pass $ 7,726 $ — $ — $ — $ — $ — $ — $ — $ 7,726 Special Mention — — — — — — — — — Substandard — — — — — — — — — Doubtful/Loss — — — — — — — — — Total leases $ 7,726 $ — $ — $ — $ — $ — $ — $ — $ 7,726 Total loans outstanding: Risk ratings Pass $ 1,235,594 $ 1,264,279 $ 592,002 $ 496,716 $ 368,729 $ 1,317,334 $ 965,422 $ 11,869 $ 6,251,945 Special Mention 6,302 17,236 2,109 26,230 3,681 39,328 31,568 546 127,000 Substandard 4,506 3,210 13,010 3,221 6,357 26,409 13,405 1,384 71,502 Doubtful/Loss — — — — — — — — — Total loans outstanding $ 1,246,402 $ 1,284,725 $ 607,121 $ 526,167 $ 378,767 $ 1,383,071 $ 1,010,395 $ 13,799 $ 6,450,447 Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2021 (in thousands) 2021 2020 2019 2018 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: CRE non-owner occupied risk ratings Pass $ 275,305 $ 127,299 $ 199,764 $ 133,046 $ 224,581 $ 543,430 $ 49,899 $ — $ 1,553,324 Special Mention — — 8,386 399 4,390 20,612 1,732 — 35,519 Substandard — — — 1,382 739 12,177 — — 14,298 Doubtful/Loss — — — — — — — — — Total CRE non-owner occupied risk ratings $ 275,305 $ 127,299 $ 208,150 $ 134,827 $ 229,710 $ 576,219 $ 51,631 $ — $ 1,603,141 Commercial real estate: CRE owner occupied risk ratings Pass $ 178,092 $ 104,571 $ 63,979 $ 48,721 $ 55,399 $ 203,431 $ 22,745 $ — $ 676,938 Special Mention 15,515 — — 289 2,964 3,833 — — 22,601 Substandard — — 858 1,214 455 4,241 — — 6,768 Doubtful/Loss — — — — — — — — — Total CRE owner occupied risk ratings $ 193,607 $ 104,571 $ 64,837 $ 50,224 $ 58,818 $ 211,505 $ 22,745 $ — $ 706,307 Commercial real estate: Multifamily risk ratings Pass $ 278,942 $ 100,752 $ 71,822 $ 109,374 $ 85,932 $ 146,984 $ 25,236 $ — $ 819,042 Special Mention — — — — — — — — — Substandard — — 4,305 — — 153 — — 4,458 Doubtful/Loss — — — — — — — — — Total multifamily loans $ 278,942 $ 100,752 $ 76,127 $ 109,374 $ 85,932 $ 147,137 $ 25,236 $ — $ 823,500 Commercial real estate: Farmland risk ratings Pass $ 43,601 $ 17,399 $ 20,223 $ 15,119 $ 9,129 $ 18,455 $ 37,612 $ — $ 161,538 Special Mention — — — — 1,197 2,519 1,491 — 5,207 Substandard — — 2,895 — 578 1,371 1,517 — 6,361 Doubtful/Loss — — — — — — — — — Total farmland loans $ 43,601 $ 17,399 $ 23,118 $ 15,119 $ 10,904 $ 22,345 $ 40,620 $ — $ 173,106 Consumer loans: SFR 1-4 1st DT liens risk ratings Pass $ 268,743 $ 159,860 $ 40,661 $ 30,880 $ 36,197 $ 113,519 $ — $ 3,527 $ 653,387 Special Mention — — 286 3,282 416 1,476 — 383 5,843 Substandard 1,103 — — 1,089 256 4,758 — 524 7,730 Doubtful/Loss — — — — — — — — — Total SFR 1st DT liens $ 269,846 $ 159,860 $ 40,947 $ 35,251 $ 36,869 $ 119,753 $ — $ 4,434 $ 666,960 Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2021 (in thousands) 2021 2020 2019 2018 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Consumer loans: SFR HELOCs and Junior Liens risk ratings Pass $ 494 $ — $ — $ — $ — $ 185 $ 317,381 $ 9,675 $ 327,735 Special Mention — — — — — 53 3,655 832 4,540 Substandard — — — — — 2 4,164 1,072 5,238 Doubtful/Loss — — — — — — — — — Total SFR HELOCs and Junior Liens $ 494 $ — $ — $ — $ — $ 240 $ 325,200 $ 11,579 $ 337,513 Consumer loans: Other risk ratings Pass $ 20,920 $ 15,939 $ 17,316 $ 8,016 $ 2,137 $ 1,079 $ 612 $ — $ 66,019 Special Mention — 46 157 233 98 51 69 — 654 Substandard — 53 96 94 67 85 10 — 405 Doubtful/Loss — — — — — — — — — Total other consumer loans $ 20,920 $ 16,038 $ 17,569 $ 8,343 $ 2,302 $ 1,215 $ 691 $ — $ 67,078 Commercial and industrial loans: Commercial and industrial risk ratings Pass $ 92,972 $ 17,933 $ 27,335 $ 11,335 $ 6,355 $ 6,774 $ 89,358 $ 860 $ 252,922 Special Mention — 2,417 69 152 71 80 116 — 2,905 Substandard — — 146 152 804 414 1,832 180 3,528 Doubtful/Loss — Total commercial and industrial loans $ 92,972 $ 20,350 $ 27,550 $ 11,639 $ 7,230 $ 7,268 $ 91,306 $ 1,040 $ 259,355 Construction loans: Construction risk ratings Pass $ 66,318 $ 79,567 $ 58,383 $ 4,849 $ 1,716 $ 8,148 $ — $ — $ 218,981 Special Mention — — — — — — — — — Substandard 2,675 472 — — — 153 — — 3,300 Doubtful/Loss — — — — — — — — — Total construction loans $ 68,993 $ 80,039 $ 58,383 $ 4,849 $ 1,716 $ 8,301 $ — $ — $ 222,281 Agriculture production loans: Agriculture production risk ratings Pass $ 2,068 $ 878 $ 1,393 $ 801 $ 940 $ 853 $ 43,686 $ — $ 50,619 Special Mention — — — 150 — 42 — — 192 Substandard — — — — — — — — — Doubtful/Loss — — — — — — — — — Total agriculture production loans $ 2,068 $ 878 $ 1,393 $ 951 $ 940 $ 895 $ 43,686 $ — $ 50,811 Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2021 (in thousands) 2021 2020 2019 2018 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Leases: Lease risk ratings Pass $ 6,572 $ — $ — $ — $ — $ — $ — $ — $ 6,572 Special Mention — — — — — — — — — Substandard — — — — — — — — — Doubtful/Loss — — — — — — — — — Total leases $ 6,572 $ — $ — $ — $ — $ — $ — $ — $ 6,572 Total loans outstanding: Risk ratings Pass $ 1,234,027 $ 624,198 $ 500,876 $ 362,141 $ 422,386 $ 1,042,858 $ 586,529 $ 14,062 $ 4,787,077 Special Mention 15,515 2,463 8,898 4,505 9,136 28,666 7,063 1,215 77,461 Substandard 3,778 525 8,300 3,931 2,899 23,354 7,523 1,776 52,086 Doubtful/Loss — — — — — — — — — Total loans outstanding $ 1,253,320 $ 627,186 $ 518,074 $ 370,577 $ 434,421 $ 1,094,878 $ 601,115 $ 17,053 $ 4,916,624 Once a loan becomes delinquent and repayment becomes questionable, a Bank collection officer will address collateral shortfalls with the borrower and attempt to obtain additional collateral. If this is not forthcoming and payment in full is unlikely, the Bank will estimate its probable loss, using a recent valuation as appropriate to the underlying collateral less estimated costs of sale, and charge the loan down to the estimated net realizable amount. Depending on the length of time until ultimate collection, the Bank may revalue the underlying collateral and take additional charge-offs as warranted. Revaluations may occur as often as every 3-12 months depending on the underlying collateral and volatility of values. Final charge-offs or recoveries are taken when collateral is liquidated and actual loss is known. Unpaid balances on loans after or during collection and liquidation may also be pursued through lawsuit and attachment of wages or judgment liens on borrower’s other assets. 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 December 31, 2022 (in thousands) 30-59 days 60-89 days > 90 days Total Past Current Total Commercial real estate: CRE non-owner occupied $ — $ — $ — $ — $ 2,149,725 $ 2,149,725 CRE owner occupied — 98 75 173 984,634 984,807 Multifamily 159 — — 159 944,378 944,537 Farmland — — — 0 280,014 280,014 Total commercial real estate loans 159 98 75 332 4,358,751 4,359,083 Consumer: SFR 1-4 1st DT liens 24 — 279 303 790,046 790,349 SFR HELOCs and junior liens 172 166 707 1,045 392,621 393,666 Other 26 34 55 115 56,613 56,728 Total consumer loans 222 200 1,041 1,463 1,239,280 1,240,743 Commercial and industrial 2,300 190 283 2,773 567,148 569,921 Construction — — 379 379 211,181 211,560 Agriculture production — — — — 61,414 61,414 Leases — — — — 7,726 7,726 Total $ 2,681 $ 488 $ 1,778 $ 4,947 $ 6,445,500 $ 6,450,447 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 December 31, 2021 (in thousands) 30-59 days 60-89 days > 90 days Total Past Current Total Commercial real estate: CRE non-owner occupied $ 226 $ 37 $ — $ 263 $ 1,602,878 $ 1,603,141 CRE owner occupied 271 127 273 671 705,636 706,307 Multifamily — — — — 823,500 823,500 Farmland — — 575 575 172,531 173,106 Total commercial real estate loans 497 164 848 1,509 3,304,545 3,306,054 Consumer: SFR 1-4 1st DT liens — 13 362 375 666,585 666,960 SFR HELOCs and junior liens 36 361 1,212 1,609 335,904 337,513 Other 109 7 28 144 66,934 67,078 Total consumer loans 145 381 1,602 2,128 1,069,423 1,071,551 Commercial and industrial 146 245 166 557 258,798 259,355 Construction — 90 — 90 222,191 222,281 Agriculture production 48 — — 48 50,763 50,811 Leases — — — — 6,572 6,572 Total $ 836 $ 880 $ 2,616 $ 4,332 $ 4,912,292 $ 4,916,624 The following table shows the ending balance of non accrual loans by loan category as of the date indicated: Non Accrual Loans As of December 31, 2022 As of December 31, 2021 (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 $ 1,739 $ 1,739 $ — $ 7,899 $ 7,899 $ — CRE owner occupied 4,938 4,938 — 4,763 5,036 — Multifamily 125 125 — 4,457 4,457 — Farmland 1,772 1,772 — 452 3,020 — Total commercial real estate loans 8,574 8,574 — 17,571 20,412 — Consumer: SFR 1-4 1st DT liens 4,117 4,220 — 3,594 3,595 — SFR HELOCs and junior liens 2,498 3,155 — 3,285 3,801 — Other 47 84 — 48 71 — Total consumer loans 6,662 7,459 — 6,927 7,467 — Commercial and industrial 1,224 3,518 — 1,904 2,416 — Construction 491 491 — 15 55 — Agriculture production 1,279 1,279 — — — — Leases — — — — — — Sub-total 18,230 21,321 — 26,417 30,350 — Less: Guaranteed loans (105) (225) — (713) (775) — Total, net $ 18,125 $ 21,096 $ — $ 25,704 $ 29,575 $ — The following tables present the amortized cost basis of collateral dependent loans by class of loans as of the following periods: As of December 31, 2022 (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 $ 777 $ 98 $ — $ 864 $ — $ — $ — $ — $ — $ — $ — $ 1,739 CRE owner occupied 548 75 1,103 3,212 — — — — — — — 4,938 Multifamily — — — — 125 — — — — — — 125 Farmland — — — — — 1,772 — — — — — 1,772 Total commercial real estate loans 1,325 173 1,103 4,076 125 1,772 — — — — 8,574 Consumer: SFR 1-4 1st DT liens — — — — — — 4,220 — — — — 4,220 SFR HELOCs and junior liens — — — — — — 1,664 1,121 — — — 2,785 Other — — — 5 — — — — 61 — 2 68 Total consumer loans — — — 5 — — 5,884 1,121 61 — 2 7,073 Commercial and industrial — — — 1,874 — — — — — 1,596 48 3,518 Construction — — — 379 — — 112 — — — — 491 Agriculture production — — — — — — — — — — 1,279 1,279 Leases — — — — — — — — — — — — Total $ 1,325 $ 173 $ 1,103 $ 6,334 $ 125 $ 1,772 $ 5,996 $ 1,121 $ 61 $ 1,596 $ 1,329 $ 20,935 As of December 31, 2021 (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 $ 2,591 $ 1,253 $ 1,545 $ 7,272 $ — $ — $ — $ — $ — $ — $ — $ 12,661 CRE owner occupied — — — — — — — — — — — — Multifamily — — — — 4,458 — — — — — — 4,458 Farmland — — — — — 1,027 — — — — — 1,027 Total commercial real estate loans 2,591 1,253 1,545 7,272 4,458 1,027 — — — — — 18,146 Consumer: SFR 1-4 1st DT liens — — — — — — 3,589 — — — — 3,589 SFR HELOCs and junior liens — — — — — — 1,649 1,636 — — — 3,285 Other — — — 43 — — — — 5 — 5 53 Total consumer loans — — — 43 — — 5,238 1,636 5 — 5 6,927 Commercial and industrial — — — — — — — — — 2,162 112 2,274 Construction — — — — — — 15 — — — — 15 Agriculture production — — — — — — — — — — — — Leases — — — — — — — — — — Total $ 2,591 $ 1,253 $ 1,545 $ 7,315 $ 4,458 $ 1,027 $ 5,253 $ 1,636 $ 5 $ 2,162 $ 117 $ 27,362 The following tables show certain information regarding Troubled Debt Restructurings that occurred during the periods indicated: Modifications classified as TDRs can include one or a combination of the following: rate modifications, term extensions, interest only modifications, either temporary or long-term, payment modifications, and collateral substitutions/additions. TDR information for the year ended December 31, 2022 (dollars in thousands) Number Pre-mod Post-mod Financial Number that Recorded Financial impact Commercial real estate: CRE non-owner occupied — $ — $ — $ — — $ — $ — CRE owner occupied 1 — 130 — — — — Multifamily — — — — — — — Farmland 3 1,228 1,440 — — — — Total commercial real estate loans 4 1,228 1,570 — — — — Consumer: SFR 1-4 1st DT liens — — — — — — — SFR HELOCs and junior liens — — — — 2 146 — Other — — — — — — — Total consumer loans — — — — 2 146 — Commercial and industrial 1 39 39 — 1 22 — Construction — — — — — — — Agriculture production 4 7,210 7,210 — — — — Leases — — — — — — — Total 9 $ 8,477 $ 8,819 $ — 3 $ 168 $ — TDR information for the year ended December 31, 2021 (dollars in thousands) Number Pre-mod Post-mod Financial Number that Recorded Financial impact Commercial real estate: CRE non-owner occupied 5 $ 4,966 $ 4,956 $ 1,020 — $ — $ — CRE owner occupied 1 740 742 742 — — — Multifamily — — — — — — — Farmland 2 701 703 50 3 847 — Total commercial real estate loans 8 6,407 6,401 1,812 3 847 — Consumer: SFR 1-4 1st DT liens — — — — — — — SFR HELOCs and junior liens 1 200 247 — — — — Other — — — — — — — Total consumer loans 1 200 247 — — — — Commercial and industrial 7 2,476 2,468 709 2 260 (5) Construction — — — — — — — Agriculture production — — — — — — — Leases — — — — — — — Total 16 $ 9,083 $ 9,116 $ 2,521 5 $ 1,107 $ (5) TDR information for the year ended December 31, 2020 (in thousands) Number Pre-mod Post-mod Financial Number that Recorded Financial impact Commercial real estate: CRE non-owner occupied 1 $ 319 $ 314 $ 314 1 $ 141 $ — CRE owner occupied 4 1,847 1,877 67 1 950 — Multifamily — — — — — — — Farmland 5 1,566 1,636 — 1 451 — Total commercial real estate loans 10 3,732 3,827 381 3 1,542 — Consumer: SFR 1-4 1st DT liens — — — — 3 1,180 — SFR HELOCs and junior liens 2 172 169 — 2 140 (90) Other — — — — — — — Total consumer loans 2 172 169 — 5 1,320 (90) Commercial and industrial 6 2,106 2,078 90 — — — Construction — — — — — — — Agriculture production — — — — — — — Leases — — — — — — — Total 18 $ 6,010 $ 6,074 $ 471 8 $ 2,862 $ (90) For all new TDRs, an impairment analysis is conducted. If the loan is determined to be collateral dependent, any additional amount of impairment will be calculated based on the difference between estimated collectible value and the current carrying balance of the loan. This difference could result in an increased provision and is typically charged off. If the asset is determined not to be collateral dependent, the impairment is measured on the net present value difference between the expected cash flows of the restructured loan and the cash flows which would have been received under the original terms. The effect of this could result in a requirement for additional provision to the reserve. The effect of these required provisions for the period are indicated above. Typically if a TDR defaults during the period, the loan is then considered collateral dependent and, if it was not already considered collateral dependent, an appropriate provision will be reserved or charge will be taken. The additional provisions required resulting from default of previously modified TDR’s are noted above.

Real Estate Owned

Real Estate Owned	12 Months Ended
	Dec. 31, 2022
Repossessed Assets [Abstract]
Real Estate Owned	Real Estate Owned A summary of the activity in the balance of real estate owned follows: Year ended December 31, (in thousands) 2022 2021 Beginning balance, net $ 2,594 $ 2,844 Additions/transfers from loans 1,349 1,052 Dispositions/sales (707) (1,458) Valuation adjustments 203 156 Ending balance, net $ 3,439 $ 2,594 Ending valuation allowance $ (113) $ (9) Ending number of foreclosed assets 9 6 Proceeds from sale of real estate owned $ 873 $ 1,526 Gain on sale of real estate owned $ 166 $ 233

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and Equipment As of December 31, (in thousands) 2022 2021 Land and land improvements $ 25,899 $ 29,002 Buildings 64,018 64,382 Furniture and equipment 42,850 42,305 132,767 135,689 Less: Accumulated depreciation (61,657) (58,401) 71,110 77,288 Construction in progress 1,217 1,399 Total premises and equipment $ 72,327 $ 78,687

Cash Value of Life Insurance

Cash Value of Life Insurance	12 Months Ended
	Dec. 31, 2022
Cash Value of Life Insurance [Abstract]
Cash Value of Life Insurance	Cash Value of Life Insurance A summary of the activity in the balance of cash value of life insurance follows: Year ended December 31, (in thousands) 2022 2021 Beginning balance $ 117,857 $ 118,870 Acquired policies from business combination 13,609 — Increase in cash value of life insurance 2,858 2,775 Gain on death benefit 309 702 Insurance proceeds receivable reclassified to other assets (891) (4,490) Ending balance $ 133,742 $ 117,857 End of period death benefit $ 223,427 $ 193,318 Number of policies owned 216 176 Insurance companies used 14 14 Current and former employees and directors covered 79 59

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The following table summarizes the Company’s goodwill intangible as of the dates indicated: (in thousands) December 31, Additions Reductions December 31, Goodwill $ 304,442 $ 83,570 $ — $ 220,872 Impairment exists when a Company’s carrying value exceeds its fair value. Goodwill is evaluated for impairment annually. At September 30, 2022, the Company had positive equity and the Company elected to perform a qualitative assessment to determine if it was more likely than not that the fair value of the Company exceeded its carrying value, including goodwill. The qualitative assessment indicated that it was more likely than not that the fair value of the reporting unit exceeds its carrying value, resulting in no impairment. For each of the years in the three year period ended December 31, 2022, there were no impairment charges recognized. The following table summarizes the Company’s core deposit intangibles (“CDI”) as of the dates indicated: (in thousands) December 31, December 31, Core deposit intangibles, gross $ 36,265 $ 37,725 Fully amortized portion (8,074) (1,460) Acquisition of VRB 10,635 — Core deposit intangibles, gross ending balance 38,826 36,265 Accumulated amortization, gross (23,896) (19,891) Fully amortized portion 8,074 1,460 Amortization expense (6,334) (5,465) Accumulated amortization, gross ending balance (22,156) (23,896) Core deposit intangible, net $ 16,670 $ 12,369 The Company's remaining CDI balance of $16,670,000 as of December 31, 2022 reflects balances recorded from the VRB acquisition on March 25, 2022 totaling $10,635,000, the FNBB acquisition on July 6, 2018 totaling $2,046,000, and the acquisition of three branch offices from Bank of America on March 18, 2016 totaling $6,614,000. The following table summarizes the Company’s estimated core deposit intangible amortization (dollars in thousands): Years Ended Estimated CDI Amortization 2023 $ 6,118 2024 4,120 2025 1,961 2026 1,527 2027 1,008 Thereafter 1,936 $ 16,670

Mortgage Servicing Rights

Mortgage Servicing Rights	12 Months Ended
	Dec. 31, 2022
Mortgage Servicing Right [Abstract]
Mortgage Servicing Rights	Mortgage Servicing Rights The following tables summarize the activity in, and the main assumptions used to determine the fair value of mortgage servicing rights for the periods indicated (dollars in thousands): (in thousands) Year ended December 31, 2022 2021 2020 Balance at beginning of period $ 5,874 $ 5,092 $ 6,200 Additions 537 1,654 1,526 Change in fair value 301 (872) (2,634) Balance at end of period $ 6,712 $ 5,874 $ 5,092 Contractually specified servicing fees, late fees and ancillary fees earned $ 1,887 $ 1,881 $ 1,855 Balance of loans serviced at: Beginning of period $ 770,299 $ 779,530 $ 767,662 End of period $ 739,919 $ 770,299 $ 779,530 Period end: Weighted-average prepayment speed (CPR) 127.0 % 208.0 % 294.0 % Weighted-average expected life (years) 7.6 5.7 4.5 Weighted-average discount rate 12.0 % 12.0 % 12.0 % The changes in fair value of MSRs during 2022 were primarily due to changes in mortgage prepayment speeds and expected life estimates of the MSRs. The changes in fair value of MSRs during 2021 were primarily due to changes in principal balance and mortgage prepayment speeds of the MSRs. The changes in fair value of MSRs during 2020 were primarily due to changes in investor require rate of return, or discount rate, of the MSRs.

Leases

Leases	12 Months Ended
	Dec. 31, 2022
Leases [Abstract]
Leases	Leases The following table presents the components of lease expense for the periods indicated: Year ended December 31, (in thousands) 2022 2021 Operating lease cost $ 5,725 $ 5,201 Short-term lease cost 283 241 Variable lease cost 26 11 Sublease income — (24) Total lease cost $ 6,034 $ 5,429 The following table presents supplemental cash flow information related to leases as of the periods ended: Year ended December 31, (in thousands) 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases $ 5,904 $ 4,964 ROUA obtained in exchange for operating lease liabilities $ 6,149 $ 2,883 The following table presents the weighted average operating lease term and discount rate as of the periods ended: Year ended December 31, 2022 2021 Weighted-average remaining lease term 8.3 years 9.3 years Weighted-average discount rate 3.0 % 2.9 % At December 31, 2022, future expected operating lease payments are as follows (in thousands): Periods ending December 31, 2023 $ 5,522 2024 5,169 2025 4,589 2026 4,105 2027 3,400 Thereafter 10,477 33,262 Discount for present value of expected cash flows (4,258) Lease liability at December 31, 2022 $ 29,004

Deposits

Deposits	12 Months Ended
	Dec. 31, 2022
Deposits [Abstract]
Deposits	Deposits A summary of the balances of deposits follows: (in thousands) December 31, 2022 2021 Noninterest-bearing demand $ 3,502,095 $ 2,979,882 Interest-bearing demand 1,718,541 1,568,682 Savings 2,884,378 2,520,959 Time certificates, $250,000 and over 46,350 44,652 Other time certificates 177,649 252,984 Total deposits $ 8,329,013 $ 7,367,159 Overdrawn deposit balances of $1,766,000 and $2,324,000 were classified as consumer loans at December 31, 2022 and 2021, respectively. At December 31, 2022, the scheduled maturities of time deposits were as follows (in thousands): Scheduled 2023 $ 164,107 2024 27,881 2025 22,598 2026 7,257 2027 2,156 Thereafter — Total $ 223,999

Other Borrowings

Other Borrowings	12 Months Ended
	Dec. 31, 2022
Debt Disclosure [Abstract]
Other Borrowings	Other Borrowings A summary of the balances of other borrowings follows: December 31, 2022 2021 (in thousands) Overnight borrowing at FHLB, fixed rate, as of December 31, 2022 of 4.65%, payable on January 3, 2023 $ 216,700 $ — Other collateralized borrowings, fixed rate, as of December 31, 2022 and 2020 of 0.05%, payable on January 3, 2023 and January 3, 2022, respectively 47,905 50,087 Total other borrowings $ 264,605 $ 50,087 Other collateralized borrowings are generally overnight maturity borrowings from non-financial institutions that are collateralized by securities owned by the Company. As of December 31, 2022, the Company has pledged as collateral and sold under agreements to repurchase investment securities with fair value of $47,905,000 under these other collateralized borrowings. The Company maintains a collateralized line of credit with the FHLB. Based on the FHLB stock requirements at December 31, 2022, this line provided for maximum borrowings of $2,485,905,000 of which $216,700,000 was outstanding. As of December 31, 2022, the Company had designated investment securities with a fair value of $80,187,000 and loans with unpaid principal balances totaling $4,389,161,000 as potential collateral under this collateralized line of credit with the FHLB. The Company maintains a collateralized line of credit with the Federal Reserve Bank of San Francisco (“FRB”). As of December 31, 2022, this line provided for maximum borrowings of $299,689,000 of which none was outstanding. As of December 31, 2022, the Company has designated investment securities with fair value of $5,000 and loans with unpaid principal balances totaling $424,946,000 as potential collateral under this collateralized line of credit with the FRB. The Company has available unused correspondent banking lines of credit from commercial banks totaling $30,000,000 for federal funds transactions at December 31, 2022.

Junior Subordinated Debt

Junior Subordinated Debt	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Junior Subordinated Debt	Junior Subordinated Debt At December 31, 2022, the Company had five wholly-owned subsidiary business trusts that had issued $63.0 million of trust preferred securities (the “Capital Trusts”). Trust preferred securities accrue and pay distributions periodically at specified annual rates as provided in the indentures. The trusts used the net proceeds from the offering to purchase a like amount of subordinated debentures (the “Debentures”) of the Company. The Debentures are the sole assets of the trusts. The Company’s obligations under the subordinated debentures and related documents, taken together, constitute a full and unconditional guarantee by the Company of the obligations of the trusts. The trust preferred securities are mandatorily redeemable upon the maturity of the Debentures, or upon earlier redemption as provided in the indentures. The Company has the right to redeem the Debentures in whole (but not in part) on or after specific dates, at a redemption price specified in the indentures plus any accrued but unpaid interest to the redemption date. The Company also has a right to defer consecutive payments of interest on the debentures for up to five years. The Company organized two of the Capital Trusts. The Company acquired its three other Capital Trusts and assumed their related Debentures as a result of its acquisition of North Valley Bancorp in 2014. The acquired Debentures were recorded on the Company’s books at their fair values on the acquisition date. The related fair value discounts to face value of these Debentures will be amortized over the remaining period in which their values are fully allowed to be included in the Company's capital ratio calculations using the effective interest method. The recorded book values of the Debentures issued by the Capital Trusts are reflected as junior subordinated debt in the Company’s consolidated balance sheets. The common stock issued by the Capital Trusts and owned by the Company is recorded in other assets in the Company’s consolidated balance sheets. The recorded book value of the debentures issued by the Capital Trusts, less the recorded book value of the common stock of the Capital Trusts owned by the Company will continue to qualify as Tier 1 or Tier 2 capital under interim guidance issued by the Board of Governors of the Federal Reserve System until only five years remain until their scheduled maturity. In connection with the acquisition of Valley Republic Bancorp the Company assumed $36.0 million in subordinated capital notes, comprised of $16.0 million that matures in 2029 and $20.0 million that matures in 2035. The notes that mature in 2029 provide for quarterly interest payments at a fixed rate of 6.00% until March 29, 2024 and then will have a floating rate of three month LIBOR plus 3.52% until maturity. The notes that mature in 2035 provide for quarterly interest payments at a fixed rate of 5.00% until August 27, 2025 and then will have a floating rate of 90-day average SOFR plus 4.90% until maturity. The acquired subordinated capital notes were recorded on the Company’s books at their fair values on the acquisition date. The related fair value premiums to face value will be amortized over the remaining maturity period using the effective interest method. The Company expects a comparable SOFR rate term to replace LIBOR as the benchmark rate index for applicable debentures in 2024. The following table summarizes the terms and recorded balance of each subordinated debenture as of the date indicated (dollars in thousands): Coupon Rate As of December 31, 2022 December 31, 2021 Subordinated Debt Series Maturity Face Current Recorded Recorded TriCo Cap Trust I 10/7/2033 $ 20,619 3.05 % 7.13 % $ 20,619 $ 20,619 TriCo Cap Trust II 7/23/2034 20,619 2.55 % 6.87 % 20,619 20,619 North Valley Trust II 4/24/2033 6,186 3.25 % 7.69 % 5,503 5,403 North Valley Trust III 7/23/2034 5,155 2.80 % 7.12 % 4,383 4,291 North Valley Trust IV 3/15/2036 10,310 1.33 % 6.10 % 7,393 7,147 VRB Subordinated - 6% 3/29/2029 16,000 Fixed 6.00 % 17,187 — VRB Subordinated - 5% 8/27/2035 20,000 Fixed 5.00 % 25,336 — $ 98,889 $ 101,040 $ 58,079

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Restricted Cash Balances — Reserves (in the form of deposits with the San Francisco Federal Reserve Bank) were not required to be maintained as of December 31, 2022 and 2021. Financial Instruments with Off-Balance-Sheet Risk — The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, standby letters of credit, and deposit account overdraft privilege. Those instruments involve, to varying degrees, elements of risk in excess of the amount recognized in the balance sheet. The contract amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments. The Company’s exposure to loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit written is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. The Company’s exposure to loss in the event of nonperformance by the other party to the financial instrument for deposit account overdraft privilege is represented by the overdraft privilege amount disclosed to the deposit account holder. The following table presents a summary of the Bank’s commitments and contingent liabilities: December 31, (in thousands) 2022 2021 Financial instruments whose amounts represent risk: Commitments to extend credit: Commercial loans $ 656,705 $ 409,950 Consumer loans 760,588 628,791 Real estate mortgage loans 458,896 333,764 Real estate construction loans 312,371 213,563 Standby letters of credit 26,599 21,871 Deposit account overdraft privilege 126,634 125,670 Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates of one year or less or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on Management’s credit evaluation of the customer. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, residential properties, and income-producing commercial properties. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support private borrowing arrangements. Most standby letters of credit are issued for one year or less. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. Collateral requirements vary, but in general follow the requirements for other loan facilities. Deposit account overdraft privilege amount represents the unused overdraft privilege balance available to the Company’s deposit account holders who have deposit accounts covered by an overdraft privilege. The Company has established an overdraft privilege for certain of its deposit account products whereby all holders of such accounts who bring their accounts to a positive balance at least once every thirty days receive the overdraft privilege. The overdraft privilege allows depositors to overdraft their deposit account up to a predetermined level. The predetermined overdraft limit is set by the Company based on account type. Legal Proceedings — Neither the Company nor its subsidiaries are a party to any other pending legal proceedings that are material, nor is their property the subject of any other material pending legal proceeding at this time. All other legal proceedings are routine and arise out of the ordinary course of the Bank’s business. None of those proceedings are currently expected to have a material adverse impact upon the Company’s and the Bank’s business, their consolidated financial position nor their operations in any material amount not already accrued, after taking into consideration any applicable insurance. Other Commitments and Contingencies —The Company has entered into employment agreements or change of control agreements with certain officers of the Company providing severance payments and accelerated vesting of benefits under supplemental retirement agreements to the officers in the event of a change in control of the Company and termination for other than cause or after a substantial and material change in the officer’s title, compensation or responsibilities. The Bank owns 13,396 shares of Class B common stock of Visa Inc. which are convertible into Class A common stock at a conversion ratio of 1.5991 per Class B share. As of December 31, 2022, the value of the Class A shares was $207.76 per share. Utilizing the conversion ratio, the value of unredeemed Class A equivalent shares owned by the Bank was $4,451,000 as of December 31, 2022, and has not been reflected in the accompanying consolidated financial statements. The shares of Visa Class B common stock are restricted and may not be transferred. Visa Member Banks are required to fund an escrow account to cover settlements, resolution of pending litigation and related claims. If the funds in the escrow account are insufficient to settle all the covered litigation, Visa may sell additional Class A shares, use the proceeds to settle litigation, and further reduce the conversion ratio. If funds remain in the escrow account after all litigation is settled, the Class B conversion ratio will be increased to reflect that surplus. Mortgage loans sold to investors may be sold with servicing rights retained, with only the standard legal representations and warranties regarding recourse to the Bank. Management believes that any liabilities that may result from such recourse provisions are not significant.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Shareholders' Equity	Shareholders’ Equity Dividends Paid The Bank paid to the Company cash dividends in the aggregate amounts of $64,188,000, $31,571,000, and $63,419,000 in 2022, 2021, and 2020, respectively. The Bank is regulated by the Federal Deposit Insurance Corporation (“FDIC”) and the State of California Department of Financial Protection & Innovation (the “DFPI”). Absent approval from the Commissioner of the DPFI, 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. Under this law, at December 31, 2022, the Bank could have paid dividends of $157,036,000 to the Company without the approval of the Commissioner of the DFPI. Stock Repurchase Plan On February 25, 2021 the Board of Directors approved the authorization to repurchase 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 program is subject to change. The 2021 Repurchase Plan has no expiration date (in accordance with applicable laws and regulations) and as of and for year ended December 31, 2022, the Company repurchased 576,881 shares. The Company repurchased 63,317 shares during the year ended December 31, 2021. In connection with approval of the 2021 Repurchase Plan, the Company’s previous repurchase program adopted on November 12, 2019 (the 2019 Repurchase Plan) was terminated. Under the 2019 Repurchase Plan, during the years ended December 31, 2021 and 2020 the Company had repurchased 223 and 858,717 shares, 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 withholding taxes on such shares. During the years ended December 31, 2022, 2021, and 2020, employees tendered 39,447, 28,276, and 12,488 shares, respectively, of the Company's common stock in connection with option exercises. Employees also tendered 27,840, 19,413 and 12,058 shares in connection with other share based awards during December 31, 2022, 2021 and 2020, respectively. In total, shares of the Company's common stock tendered had market values of $1,269,000, $2,118,000, and $736,000 for the years ended December 31, 2022, 2021 and 2020, 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 or 2019 Repurchase Plans.

Stock Options and Other Equity-

Stock Options and Other Equity-Based Incentive Instruments	12 Months Ended
	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Stock Options and Other Equity-Based Incentive Instruments	Stock Options and Other Equity-Based Incentive Instruments In April 2019, the Company’s Board of Directors adopted the TriCo Bancshares 2019 Equity Incentive Plan (2019 Plan) covering officers, employees, directors of, and consultants to, the Company. The 2019 Plan was approved by the Company’s shareholders in May 2019. The 2019 Plan allows the Company to issue equity-based incentives representing up to 1,500,000 shares, such as incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock, restricted stock units and performance awards (which could either be restricted stock or restricted stock units) (collectively, Awards). The 2019 Plan contains several enhanced corporate governance provisions, including: expressly providing that executives’ Awards and cash incentive compensation are subject to TriCo’s potential clawback or recoupment if the Company must restate its financial statements; generally imposing a one year minimum vesting period on Awards; generally requiring participants to hold at least 50% of the shares acquired under an Award for at least one year; and clarifying that credit for dividends declared on shares of common stock underlying an Award is subject to the same vesting requirements as the common stock underlying the Award. The number of shares available for issuance under the 2019 Plan will be reduced by: (i) one share for each share of common stock issued pursuant to a stock option; (ii) the total number of stock appreciation rights that are exercised, including any shares of common stock underlying such Awards that are not actually issued to the participant as the result of a net settlement; (iii) two shares for each share of common stock issued pursuant to a performance award, a restricted share Award or an RSU Award and (iv) any shares of common stock used to pay any exercise price or tax withholding obligation with respect to any Award. When Awards made under the 2019 Plan expire or are forfeited or cancelled, the underlying shares will become available for future Awards under the 2019 Plan. To the extent that a share of common stock pursuant to an Award that counted as two shares again becomes available for issuance under the 2019 Plan, the number of shares of common stock available for issuance under the 2019 Plan will increase by two shares. If shares of common stock issued pursuant to the Plan are repurchased by, or are surrendered or forfeited to the Company at no more than cost, then such shares will again be available for the grant of Awards under the Plan. Any shares of common stock repurchased by the Company with cash proceeds from the exercise of options will not, however, be added back to the pool of share available for issuance under the 2019 Plan. Shares awarded and delivered under the 2019 Plan may be authorized but unissued shares or reacquired shares. Shares tendered to TriCo or withheld from delivery to a participant as payment of the exercise price or in connection with the “net exercise” of a stock option or to satisfy TriCo’s tax withholding obligations will not again become available for future Awards under the 2019 Plan. As of December 31, 2022, there were no outstanding options for the purchase of common shares and 139,194 RSUs were outstanding. The number of shares that remain available for issuance is not more than 763,495, which could decrease based on the level of the Company's future performance and outcome of certain vesting requirements. The 2019 Plan replaced the TriCo Bancshares 2009 Equity Incentive Plan (2009 Plan), which expired on March 26, 2019. As a result of its expiration, no further awards may be issued under the 2009 Plan, though all awards under the 2009 Plan that were outstanding as of its expiration continue to be governed by the terms, conditions and procedures set forth in the 2009 Plan and any applicable award agreement. As of December 31, 2022, 15,500 options for the purchase of common shares remain outstanding under the 2009 Plan. Stock option activity is summarized in the following table for the dates indicated: Number of Option Price Weighted Outstanding at January 1, 2021 128,500 $14.54 to $23.21 $ 17.72 Options granted — — — Options exercised (49,675) $14.54 to $16.59 $ 15.25 Options forfeited — — — Outstanding at December 31, 2021 78,825 $15.34 to $23.21 $ 19.28 Options granted — — — Options exercised (63,325) $15.34 to $19.46 $ 18.79 Options forfeited — — — Outstanding at December 31, 2022 15,500 $19.46 to $23.21 $ 21.27 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 December 31, 2022: Currently Currently Not Total Number of options 15,500 — 15,500 Weighted average exercise price $ 21.27 $ — $ 21.27 Intrinsic value (in thousands) $ 461 $ — $ 461 Weighted average remaining contractual term (yrs.) 1 year n/a 1 year All options outstanding as of December 31, 2022 are fully vested. The Company did not modify any option grants during the three year period ended December 31, 2022. The following table shows the total intrinsic value of options exercised, the total fair value of options vested, total compensation costs for options recognized in income, total tax benefit and excess tax benefits recognized in income related to compensation costs for options during the periods indicated: Year Ended December 31, 2022 2021 2020 Intrinsic value of options exercised $ 1,190,000 $ 1,476,000 $ 403,000 Fair value of options that vested — — — Total compensation costs for options recognized in expense — — — Total tax benefit recognized in income related to compensation costs for options — — — Excess tax benefit recognized in income — — — There were no stock options granted during 2022, 2021 and 2020, respectively. Restricted stock unit activity is summarized in the following table for the dates indicated: Service Condition Vesting RSUs Market Plus Service Condition Number Weighted Average Number of Weighted Average Outstanding at January 1, 2022 103,517 99,763 RSUs granted 84,278 $ 44.00 37,877 $ 40.74 Additional market plus service condition RSUs vested — 4,740 RSUs added through dividend credits 2,896 — RSUs released through vesting (50,076) (26,338) RSUs forfeited/expired (1,421) (1,561) Outstanding at December 31, 2022 139,194 114,481 The 139,194 of service condition vesting RSUs outstanding as of December 31, 2022 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. Additional RSUs credited through dividends are subject to the same vesting requirements as the original grant. The Company expects to recognize $3,822,000 of pre-tax compensation costs related to these service condition vesting RSUs between December 31, 2022 and their vesting dates. The Company did not modify any service condition vesting RSUs during 2022 or 2021. The Company expects to recognize $2,110,000 of pre-tax compensation costs related to the market plus service condition RSUs between December 31, 2022 and their vesting dates. As of December 31, 2022, 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 171,721 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 2022 or 2021. The following table shows the compensation costs and excess tax benefits for RSUs recognized in income for the periods indicated: Year Ended December 31, 2022 2021 2020 Total compensation costs recognized in income Service condition vesting RSUs $ 2,883,000 $ 1,728,000 $ 1,390,000 Market plus service condition vesting RSUs 986,000 910,000 646,000 Excess tax benefit recognized in income Service condition vesting RSUs $ 1,079,000 $ 626,000 $ 372,000 Market plus service condition vesting RSUs 355,000 226,000 194,000

Non-interest Income and Expense

Non-interest Income and Expense	12 Months Ended
	Dec. 31, 2022
Other Income and Expenses [Abstract]
Non-interest Income and Expense	Non-interest Income and Expense The components of other non-interest income were as follows: Year Ended December 31, (in thousands) 2022 2021 2020 ATM and interchange fees $ 26,767 $ 25,356 $ 21,660 Service charges on deposit accounts 16,536 14,013 13,944 Other service fees 4,274 3,570 3,156 Mortgage banking service fees 1,887 1,881 1,855 Change in value of mortgage loan servicing rights 301 (872) (2,634) Total service charges and fees 49,765 43,948 37,981 Asset management and commission income 3,986 3,668 2,989 Increase in cash value of life insurance 2,858 2,775 2,949 Gain on sale of loans 2,342 9,580 9,122 Lease brokerage income 820 746 668 Sale of customer checks 1,167 459 414 Gain on sale of investment securities — — 7 Gain (loss) on marketable equity securities (340) (86) 64 Other 2,448 2,574 1,000 Total other noninterest income 13,281 19,716 17,213 Total noninterest income $ 63,046 $ 63,664 $ 55,194 Mortgage banking servicing fee income (expense), net of change in value of mortgage loan servicing rights, totaling $2,188,000, $1,009,000, and $779,000 were recorded within service charges and fees for the years ended December 31, 2022, 2021, and 2020, respectively. The components of noninterest expense were as follows: Year Ended December 31, (in thousands) 2022 2021 2020 Base salaries, net of deferred loan origination costs $ 84,861 $ 69,844 $ 70,164 Incentive compensation 17,908 14,957 10,022 Benefits and other compensation costs 27,083 21,550 31,935 Total salaries and benefits expense 129,852 106,351 112,121 Occupancy 15,493 14,910 14,528 Data processing and software 14,660 13,985 13,504 Equipment 5,733 5,358 5,704 ATM and POS network charges 6,984 6,040 5,433 Merger and acquisition expense 6,253 1,523 — Advertising 3,694 2,899 2,827 Professional fees 4,392 3,657 3,222 Intangible amortization 6,334 5,464 5,724 Telecommunications 2,298 2,253 2,601 Regulatory assessments and insurance 3,142 2,581 1,594 Courier service 2,013 1,214 1,414 Operational losses 1,000 964 1,168 Postage 1,147 710 1,068 Gain on sale or acquisition of foreclosed assets (481) (233) (235) (Gain) loss on disposal of fixed assets (1,070) (439) 67 Other miscellaneous expense 15,201 11,038 12,018 Total other noninterest expense 86,793 71,924 70,637 Total noninterest expense $ 216,645 $ 178,275 $ 182,758

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The components of consolidated income tax expense are as follows (in thousands): Year Ended December 31, 2022 2021 2020 Current tax expense Federal $ 34,155 $ 28,763 $ 22,104 State 22,355 18,221 14,586 $ 56,510 46,984 36,690 Deferred tax expense Federal (5,224) (872) (9,500) State (2,798) (64) (4,654) (8,022) (936) (14,154) Total tax expense $ 48,488 $ 46,048 $ 22,536 A deferred tax asset or liability is recognized for the tax consequences of temporary differences in the recognition of revenue and expense for financial and tax reporting purposes. The net change during the year in the deferred tax asset or liability results in a deferred tax expense or benefit. The Company recognized, as components of tax expense, tax credits and other tax benefits, and amortization expense relating to our investments in Qualified Affordable Housing Projects as follows for the periods indicated (in thousands): Year Ended December 31, 2022 2021 2020 Tax credits and other tax benefits – decrease in tax expense $ (6,370) $ (4,224) $ (4,200) Amortization – increase in tax expense $ 6,178 $ 3,604 $ 3,581 The carrying value of Low Income Housing Tax Credit Funds was $90,956,000 and $41,295,000 as of December 31, 2022 and 2021, respectively. As of December 31, 2022, the Company has committed to make additional capital contributions to the Low Income Housing Tax Credit Funds in the amount of $65,285,000, and these contributions are expected to be made over the next several years. The provisions for income taxes applicable to income before taxes for the years ended December 31, 2022, 2021 and 2020 differ from amounts computed by applying the statutory Federal income tax rates to income before taxes. The effective tax rate and the statutory federal income tax rate are reconciled as follows: Year Ended December 31, (in thousands) 2022 2021 2020 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % State income taxes, net of federal tax benefit 7.9 7.9 7.7 Tax-exempt interest on municipal obligations (0.7) (0.5) (0.9) Tax-exempt life insurance related income (0.4) (0.5) (0.8) Low income housing tax credits (3.7) (2.6) (4.8) Low income housing tax credit amortization 3.6 2.2 4.1 Equity compensation (0.2) (0.1) 0.4 Non-deductible merger expenses 0.1 0.1 — Other 0.3 0.6 (0.9) Effective Tax Rate 27.9 % 28.1 % 25.8 % The temporary differences, tax effected, which give rise to the Company’s net deferred tax asset recorded in other assets are as follows as of December 31 for the years indicated (in thousands): December 31, 2022 2021 Deferred tax assets: Allowance for losses and reserve for unfunded commitments $ 32,519 $ 26,361 Deferred compensation 1,696 1,758 Other accrued expenses 2,720 1,994 Additional unfunded status of the supplemental retirement plans 16,036 13,693 Operating lease liability 8,575 7,769 State taxes 3,649 3,251 Share based compensation 1,132 952 Nonaccrual interest 643 937 Acquisition cost basis 14,640 506 Unrealized loss on securities 85,897 116 Tax credits 852 513 Net operating loss carryforwards 2,098 1,131 Other 120 813 Total deferred tax assets 170,577 59,794 Deferred tax liabilities: Securities income (777) (762) Depreciation (8,270) (6,198) Right of use asset (7,941) (7,588) Funded pension liability (4,110) (709) Securities accretion (1,265) (846) Mortgage servicing rights valuation (1,976) (1,726) Core deposit intangible (4,778) (3,248) Junior subordinated debt (1,293) (1,422) Prepaid expenses and other (991) (488) Total deferred tax liability (31,401) (22,987) Net deferred tax asset $ 139,176 $ 36,807 As part of the merger with FNB Bancorp in 2018 and North Valley Bancorp in 2014, TriCo acquired federal and state net operating loss carryforwards, capital loss carryforwards, and tax credit carryforwards. In addition, the 2020 Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) provided the Company with an opportunity to file amended federal tax returns and generate proposed refunds of approximately $805,000. These tax attribute carryforwards will be subject to provisions of the tax law that limit the use of such losses and credits generated by a company prior to the date certain ownership changes occur. The amount of the Company’s net operating loss carryforwards that are subject to these limitations as of December 31, 2022 were approximately $5,518,000 for federal and $11,187,000 for California. The amount of the Company’s tax credits that would be subject to these limitations as of December 31, 2022 are $395,000 and $648,000 for federal and California, respectively. Due to the limitation, a significant portion of the state tax credits will expire regardless of whether the Company generates future taxable income. As such, the Company has recorded the future benefit of these tax credits on the books at the value which is more likely than not to be realized. These tax loss and tax credit carryforwards expire at various dates through 2032. The Company believes that a valuation allowance is not needed to reduce the deferred tax assets as it is more likely than not that the results of future operations will generate sufficient taxable income to realize the deferred tax assets, including the tax attribute carryforwards acquired as part of past mergers. Disclosure of unrecognized tax benefits at December 31, 2022 and 2021 were not considered significant for disclosure purposes. Management does not expect the unrecognized tax benefit will materially change in the next 12 months. During the years ended December 31, 2022 and December 31, 2021 the Company did not recognize and significant amounts related to interest and penalties associated with taxes. The Company files income tax returns in the U.S. federal jurisdiction, and California. With few exceptions, the Company is no longer subject to U.S. federal and state/local income tax examinations by tax authorities for years before 2019 and 2018, respectively.

Earnings per Share

Earnings per Share	12 Months Ended
	Dec. 31, 2022
Earnings Per Share [Abstract]
Earnings per Share	Earnings per Share Earnings per share have been computed based on the following: Year Ended December 31, (in thousands) 2022 2021 2020 Net income $ 125,419 $ 117,655 $ 64,814 Average number of common shares outstanding 32,584 29,721 29,917 Effect of dilutive stock options and restricted stock 137 161 111 Average number of common shares outstanding used to calculate diluted earnings per share 32,721 29,882 30,028 Options excluded from diluted earnings per share because the effect of these options was antidilutive — — —

Comprehensive Income (Loss)

Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2022
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, such items, along with net income, are components of comprehensive income. The components of other comprehensive income and related tax effects are as follows: Year Ended December 31, (in thousands) 2022 2021 2020 Unrealized holding gains (losses) on available for sale securities before reclassifications $ (290,157) $ (19,575) $ 15,803 Amounts reclassified out of accumulated other comprehensive income: Realized gains on debt securities — — (7) Total amounts reclassified out of accumulated other comprehensive income — — (7) Unrealized holding gains (losses) on available for sale securities after reclassifications (290,157) (19,575) 15,796 Tax effect 85,781 5,787 (4,670) Unrealized holding gains (losses) on available for sale securities, net of tax (204,376) (13,788) 11,126 Change in unfunded status of the supplemental retirement plans before reclassifications 11,522 3,497 645 Amounts reclassified out of accumulated other comprehensive income: Amortization of prior service cost (28) (58) (55) Amortization of actuarial losses 8 254 9,309 Total amounts reclassified out of accumulated other comprehensive income (20) 196 9,254 Change in unfunded status of the supplemental retirement plans after reclassifications 11,502 3,693 9,899 Tax effect (3,401) (1,091) (2,927) Change in unfunded status of the supplemental retirement plans, net of tax 8,101 2,602 6,972 Change in joint beneficiary agreement liability before reclassifications 1,389 (113) (596) Tax effect — — — Change in unfunded status of the supplemental retirement plans, net of tax 1,389 (113) (596) Total other comprehensive income (loss) $ (194,886) $ (11,299) $ 17,502 The components of accumulated other comprehensive income (loss), included in shareholders’ equity, are as follows: Year Ended December 31, (in thousands) 2022 2021 Net unrealized loss on available for sale securities $ (290,549) $ (392) Tax effect 85,897 116 Unrealized holding loss on available for sale securities, net of tax (204,652) (276) Unfunded status of the supplemental retirement plans 13,901 2,399 Tax effect (4,110) (709) Unfunded status of the supplemental retirement plans, net of tax 9,791 1,690 Joint beneficiary agreement liability, net of tax 956 (433) Accumulated other comprehensive income (loss) $ (193,905) $ 981

Retirement Plans

Retirement Plans	12 Months Ended
	Dec. 31, 2022
Retirement Benefits [Abstract]
Retirement Plans	Retirement Plans 401(k) Plan The Company sponsors a 401(k) Plan whereby substantially all employees age 21 and over with 90 days of service may participate. Participants may contribute a portion of their compensation subject to certain limits based on federal tax laws. The Company provides a discretionary matching contribution equal to 50% of participant’s elective deferrals, up to 4% of eligible compensation. The Company recorded salaries & benefits expense attributable to the 401(k) Plan matching contributions and 401(k) Plan matching contributions for the years ended: Year Ended December 31, (in thousands) 2022 2021 2020 401(k) Plan benefits expense $ 1,541 $ 1,211 $ 1,139 401(k) Plan contributions made by the Company $ 1,214 $ 1,121 $ 202 Employee Stock Ownership Plan Substantially all employees with at least one year of service are covered by a discretionary employee stock ownership plan (ESOP). Company shares owned by the ESOP are paid dividends and included in the calculation of earnings per share as common shares outstanding. Contributions are made to the plan at the discretion of the Board of Directors. Expenses related to the Company’s ESOP, included in benefits and other compensation costs under salaries and benefits expense, and contributions to the plan for the years ended were: Year Ended December 31, (in thousands) 2022 2021 2020 ESOP benefits expense $ 2,824 $ 1,888 $ 2,400 ESOP contributions made by the Company $ 3,535 $ 878 $ 1,951 Deferred Compensation Plans The Company has deferred compensation plans for certain directors and key executives, which allow certain directors and key executives designated by the Board of Directors of the Company to defer a portion of their compensation. The Company has purchased insurance on the lives of certain of the participants and intends to hold these policies until death as a cost recovery of the Company’s deferred compensation obligations of $5,738,000 and $5,945,000 at December 31, 2022 and 2021, respectively. Earnings credits on deferred balances included in non-interest expense are included in the following table: Year Ended December 31, (in thousands) 2022 2021 2020 Deferred compensation earnings credits included in non-interest expense $ 187 $ 176 $ 212 Supplemental Retirement Plans The Company has supplemental retirement plans for certain directors and key executives. These plans are non-qualified defined benefit plans and are unsecured and unfunded. The Company has purchased insurance on the lives of the participants and intends to hold these policies until death as a cost recovery of the Company’s retirement obligations. The cash values of the insurance policies purchased to fund the deferred compensation obligations and the supplemental retirement obligations were $133,742,000 and $117,857,000 at December 31, 2022 and 2021, respectively. The Company recorded in other liabilities the additional funded status of the supplemental retirement plans of $13,901,000 and $2,399,000 related to the supplemental retirement plans as of December 31, 2022 and 2021, respectively. These amounts represent the amount by which the projected benefit obligations for these retirement plans exceeded the fair value of plan assets plus amounts previously accrued related to the plans. The projected benefit obligation is recorded in other liabilities. At December 31, 2022 and 2021, the additional funded status of the supplemental retirement plans of $13,901,000 and $2,399,000 were offset by a reduction of shareholders’ equity accumulated other comprehensive gain of $9,792,000 and $1,690,000, respectively, representing the after-tax impact of the additional funded status of the supplemental retirement plans, and the related deferred tax liability of $4,109,000 and $709,000, respectively. Amounts recognized as a component of accumulated other comprehensive income (loss) as of year-end that have not been recognized as a component of the combined net period benefit cost of the Company’s defined benefit pension plans are presented in the following table. The Company expects to recognize approximately $455,000 of the net actuarial loss reported in the following table as of December 31, 2022 as a component of net periodic benefit cost during 2022. December 31, (in thousands) 2022 2021 Transition obligation $ — $ — Prior service cost — (28) Net actuarial (gain) / loss (13,901) (2,371) Amount included in accumulated other comprehensive income (loss) (13,901) (2,399) Deferred tax liability / (benefit) 4,109 709 Amount included in accumulated other comprehensive income (loss), net of tax $ (9,792) $ (1,690) Information pertaining to the activity in the supplemental retirement plans, using a measurement date of December 31, is as follows: December 31, (in thousands) 2022 2021 Change in benefit obligation: Benefit obligation at beginning of year $ (43,834) $ (46,197) Acquisition of obligations (3,310) — Service cost (1,624) (1,103) Interest cost (1,731) (1,518) Actuarial (loss)/gain 10,266 3,580 Plan amendments (2,141) — Benefits paid 2,033 1,404 Benefit obligation at end of year $ (40,341) $ (43,834) Change in plan assets: Fair value of plan assets at beginning of year $ — $ — Fair value of plan assets at end of year $ — $ — Funded status $ (40,341) $ (43,834) Unrecognized net obligation existing at January 1, 1986 — — Unrecognized net actuarial (loss)/gain (13,901) (2,453) Unrecognized prior service cost — (28) Accumulated other comprehensive loss 13,901 2,481 Accrued benefit cost $ (40,341) $ (43,834) Accumulated benefit obligation $ (40,340) $ (42,590) The following table sets forth the net periodic benefit cost recognized for the supplemental retirement plans: Year Ended December 31, (in thousands) 2022 2021 2020 Net pension cost included the following components: Service cost-benefits earned during the period $ 1,624 $ 1,103 $ 2,830 Interest cost on projected benefit obligation 1,731 1,518 1,224 Amortization of net obligation at transition — — 1 Amortization of prior service cost (28) (58) (55) Recognized net actuarial loss (86) 254 9,309 Amortization of loss/(gain) (114) — — Recognition of pension service cost to due amendment 2,141 — — Net periodic pension cost $ 5,268 $ 2,817 $ 13,309 The following table sets forth assumptions used in accounting for the plans: Year Ended December 31, 2022 2021 2020 Discount rate used to calculate benefit obligation 5.23 % 2.74 % 2.40 % Discount rate used to calculate net periodic pension cost 2.74 % 2.40 % 2.82 % Average annual increase in executive compensation — % 3.25 % 3.25 % Average annual increase in director compensation — % — % — % The following table sets forth the expected benefit payments to participants and estimated contributions to be made by the Company under the supplemental retirement plans for the years indicated: (in thousands) Expected Benefit Estimated 2023 $ 1,914 $ 1,914 2024 3,017 3,017 2025 2,988 2,988 2026 3,076 3,076 2027 2,974 2,974 2028-2032 18,981 18,981

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2022
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Certain directors, officers, and companies with which they are associated were customers of, and had banking transactions with, the Company or the Bank in the ordinary course of business. The following table summarizes the activity in these loans for the periods indicated: (in thousands) Balance January 1, 2021 $ 6,833 Advances/new loans 2,000 Removed/payments (2,517) Balance December 31, 2021 6,316 Advances/new loans 11,960 Removed/payments (6,892) Balance December 31, 2022 $ 11,384 Deposits of directors, officers and other related parties to the Bank totaled $28,355,000 and $35,310,000 at December 31, 2022 and 2021, respectively.

Fair Value Measurement

Fair Value Measurement	12 Months Ended
	Dec. 31, 2022
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. Securities available-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 as loans held for sale, loans held for investment and certain other assets. These nonrecurring fair value adjustments typically involve application of lower of cost or market accounting or 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. Securities available for sale —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 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 nonrecurring 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, loans may require individual analysis and an allowance for credit losses is established. Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are an example. The fair value of individually evaluated loans is estimated using one of several methods, including collateral value, fair value of similar debt, enterprise value, liquidation value and discounted cash flows. Those individually evaluated 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. Individually evaluated 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 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 asset 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. Additional information regarding mortgage servicing rights can be found in Note 10 in the consolidated financial statements at Item 1 of this report. The tables below presents the recorded amount of assets and liabilities measured at fair value on a recurring basis (in thousands): Fair value at December 31, 2022 Total Level 1 Level 2 Level 3 Marketable equity securities $ 2,598 $ 2,598 $ — $ — Debt securities available for sale: Obligations of U.S. government agencies 1,372,769 — 1,372,769 — Obligations of states and political subdivisions 293,205 — 293,205 — Corporate bonds 5,751 — 5,751 — Asset backed securities 439,767 — 439,767 — Non-agency collateralized mortgage obligations 340,946 — 340,946 — Loans held for sale 1,846 — 1,846 — Mortgage servicing rights 6,712 — — 6,712 Total assets measured at fair value $ 2,463,594 $ 2,598 $ 2,454,284 $ 6,712 Fair value at December 31, 2021 Total Level 1 Level 2 Level 3 Marketable equity securities $ 2,938 $ 2,938 $ — $ — Debt securities available for sale: Obligations of U.S. government agencies 1,257,389 — 1,257,389 — Obligations of states and political subdivisions 192,244 — 192,244 — Corporate bonds 6,756 — 6,756 — Asset backed securities 409,552 — 409,552 — Non-agency collateralized mortgage obligation 341,997 — 341,997 — Loans held for sale 3,466 — 3,466 — Mortgage servicing rights 5,874 — — 5,874 Total assets measured at fair value $ 2,220,216 $ 2,938 $ 2,211,404 $ 5,874 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 2022 or 2021. 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 years ended December 31, 2022, 2021, and 2020. Had there been any transfer into or out of Level 3 during 2022, 2021, or 2020, 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): Year ended December 31, Beginning Transfers Change Issuances Ending 2022: Mortgage servicing rights $ 5,874 — $ 301 $ 537 $ 6,712 2021: Mortgage servicing rights $ 5,092 — $ (872) $ 1,654 $ 5,874 2020: Mortgage servicing rights $ 6,200 — $ (2,634) $ 1,526 $ 5,092 The Company’s method for determining the fair value of mortgage servicing rights is described in Note 1. 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). Note 10 contains additional information regarding mortgage servicing rights. The following table present quantitative information about recurring Level 3 fair value measurements at December 31, 2022 and 2021: December 31, 2022 Fair Value Valuation Unobservable Range, Mortgage Servicing Rights $6,712 Discounted Constant 116%-226%, 127% Discount rate 10%-14%, 12% December 31, 2021 Mortgage Servicing Rights $5,874 Discounted Constant 187%-264%, 208% Discount rate 10%-14%, 12% The tables below present the recorded amount of 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. The gains (losses) represent the amounts recorded during the period regardless of whether the asset is still held at fair value at period end (in thousands): December 31, 2022 Total Level 1 Level 2 Level 3 Total Gains Fair value: Individually evaluated loans $ 5,719 — — $ 5,719 $ (2,283) Real estate owned 311 — — 311 481 Total assets measured at fair value $ 6,030 — — $ 6,030 $ (1,802) December 31, 2021 Total Level 1 Level 2 Level 3 Total Gains Fair value: Individually evaluated loans $ 3,683 — — $ 3,683 $ (1,105) The individually evaluated loan amount above represents collateral dependent loans with unique risk characteristics that have been adjusted to fair value. When we identify a collateral dependent loan as requiring individual evaluation, we measure the need for credit reserves 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 we determine that the value of the loan is less than the recorded investment in the loan, we recognize this impairment and adjust the carrying value of the loan to fair value through the allowance for loan and lease 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 Bank 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 loan and lease 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 non-covered other 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 tables present quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at December 31, 2022 and 2021: December 31, 2022 Fair Value Valuation Technique Unobservable Inputs Range, Individually evaluated loans $ 5,719 Sales comparison Adjustment for differences between Not meaningful; Real estate owned (Residential) $ 311 Sales comparison Adjustment for differences between Not meaningful; December 31, 2021 Fair Value Valuation Technique Unobservable Inputs Range, Individually evaluated loans $ 3,683 Sales comparison Adjustment for differences between Not meaningful; The estimated fair values of financial instruments that are reported at amortized cost in the Corporation’s consolidated balance sheets, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value, were as follows (in thousands): December 31, 2022 December 31, 2021 Carrying Fair Carrying Fair Financial assets: Level 1 inputs: Cash and due from banks $ 96,323 $ 96,323 $ 57,032 $ 57,032 Cash at Federal Reserve and other banks 10,907 10,907 711,389 711,389 Level 2 inputs: Securities held to maturity 160,983 149,938 199,759 208,140 Restricted equity securities 17,250 n/a 17,250 N/A Level 3 inputs: Loans, net 6,344,767 6,153,155 4,831,248 4,880,044 Financial liabilities: Level 2 inputs: Deposits 8,329,013 8,321,517 7,367,159 7,366,422 Other borrowings 264,605 264,605 50,087 50,087 Level 3 inputs: Junior subordinated debt 101,040 92,613 58,079 57,173 Contract Fair Contract Fair Off-balance sheet: Level 3 inputs: Commitments (1) $ 2,188,560 $ 21,886 $ 1,586,068 $ 15,861 Standby letters of credit (1) 26,599 266 21,871 219 Overdraft privilege commitments (1) 126,634 1,266 125,670 1,257 The methods and assumptions used to estimate the fair value of each class of financial instruments not measured at fair value are as follows: Securities held to maturity - This includes mortgage-backed securities issued by government sponsored entities and municipal bonds. 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. Restricted equity securities - Consists of FHLB stock whereby carrying value approximates fair value. Loans - Loans are generally valued by discounting expected cash flows using market inputs with adjustments based on cohort level assumptions for certain loan types as well as internally developed estimates at a business segment level. Due to the significance of the unobservable market inputs and assumptions, as well as the absence of a liquid secondary market for most loans, these loans are classified as Level 3. Certain loans are measured based on observable market prices sourced from external data providers and classified as Level 2. Nonaccrual loans are written down and reported at their estimated recovery value which approximates their fair value and classified as Level 3. Deposits - The estimated fair value of deposits with no stated maturity, such as demand deposit accounts, money market accounts, and savings accounts was the amount payable on demand at the reporting date. The fair value of time deposits was estimated based on a discounted cash flow technique using Level 3 inputs appropriate to the contractual maturity. Other borrowings - The cash flows were calculated using the contractual features of the advance and then discounted using observable market. These are short-term in nature. Junior subordinated debt - The fair value of structured financings was estimated based on a discounted cash flow technique using observable market interest rates adjusted for estimated spreads.

TriCo Bancshares Condensed Fina

TriCo Bancshares Condensed Financial Statements (Parent Only)	12 Months Ended
	Dec. 31, 2022
Condensed Financial Information Disclosure [Abstract]
TriCo Bancshares Condensed Financial Statements (Parent Only)	TriCo Bancshares Condensed Financial Statements (Parent Only) Condensed Balance Sheets December 31, December 31, (In thousands) Assets Cash and cash equivalents $ 7,987 $ 4,950 Investment in Tri Counties Bank 1,138,429 1,047,577 Other assets 1,818 6,073 Total assets $ 1,148,234 $ 1,058,600 Liabilities and shareholders’ equity Other liabilities $ 778 $ 337 Junior subordinated debt 101,040 58,079 Total liabilities 101,818 58,416 Shareholders’ equity: Preferred stock, no par value: 1,000,000 shares authorized, zero issued and outstanding at December 31, 2020 and 2019 — — Common stock, no par value: authorized 50,000,000 shares; issued and outstanding 33,331,513 and 29,730,424 shares at December 31, 2022 and 2021, respectively 697,448 532,244 Retained earnings 542,873 466,959 Accumulated other comprehensive income (loss), net (193,905) 981 Total shareholders’ equity 1,046,416 1,000,184 Total liabilities and shareholders’ equity $ 1,148,234 $ 1,058,600 Condensed Statements of Income Year Ended December 31, 2022 2021 2020 (In thousands) Net interest expense $ (4,385) $ (2,128) $ (2,555) Administration expense (816) (985) (932) Loss before equity in net income of Tri Counties Bank (5,201) (3,113) (3,487) Equity in net income of Tri Counties Bank: Distributed 64,188 31,571 63,419 Undistributed 64,896 88,289 3,851 Income tax benefit 1,536 908 1,031 Net income $ 125,419 $ 117,655 $ 64,814 Condensed Statements of Comprehensive Income (Loss) Year Ended December 31, 2022 2021 2020 (In thousands) Net income $ 125,419 $ 117,655 $ 64,814 Other comprehensive income (loss), net of tax: Increase (decrease) in unrealized gains on available for sale securities arising during the period (204,376) (13,788) 11,126 Change in minimum pension liability 8,101 2,602 6,972 Change in joint beneficiary agreement liability 1,389 (113) (596) Other comprehensive income (loss) (194,886) (11,299) 17,502 Comprehensive income (loss) $ (69,467) $ 106,356 $ 82,316 Condensed Statements of Cash Flows Year Ended December 31, 2022 2021 2020 (In thousands) Operating activities: Net income $ 125,419 $ 117,655 $ 64,814 Adjustments to reconcile net income to net cash provided by operating activities: Undistributed equity in earnings of Tri Counties Bank (64,896) (88,289) (3,851) Equity compensation vesting expense 3,869 2,638 2,036 Net change in other assets and liabilities (3,834) (6,427) (1,885) Net cash provided by operating activities 60,558 25,577 61,114 Investing activities: Sales or maturities of investments 4,234 — — Financing activities: Issuance of common stock through option exercise 1,190 144 198 Repurchase of common stock (27,148) (4,344) (26,720) Cash dividends paid — common (35,797) (29,724) (26,303) Net cash used for financing activities (61,755) (33,924) (52,825) Net change in cash and cash equivalents 3,037 (8,347) 8,289 Cash and cash equivalents at beginning of year 4,950 13,297 5,008 Cash and cash equivalents at end of year $ 7,987 $ 4,950 $ 13,297

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2022
Regulated Operations [Abstract]
Regulatory Matters	Regulatory Matters The Company and the Bank are 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 consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance-sheet items as calculated under regulatory accounting practices. These 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 that minimum amounts and ratios of total, Tier 1, and common equity Tier 1capital to risk-weighted assets, and of Tier 1 capital to average assets be maintained. Under applicable capital requirements both the Company and the Bank are required to have a common equity Tier 1 capital ratio of 4.5%, a Tier 1 leverage ratio of 4.0%, a Tier 1 risk-based ratio of 6.0% and a total risk-based ratio of 8.0%. In addition, the Company and the Bank are also required to maintain a capital conservation buffer consisting of common equity Tier 1 capital above 2.5% of minimum risk based capital ratios to avoid restrictions on certain activities including payment of dividends, stock repurchases and discretionary bonuses to executive officers. The additional 2.5% buffer, where applicable, is included in the minimum ratios set forth in the table below. Management believes as of December 31, 2022 and 2021, the Company and Bank meet all capital adequacy requirements to which they are subject. Actual Required for Capital Adequacy Purposes Required to be (in thousands) Amount Ratio Amount Ratio Amount Ratio As of December 31, 2022: Total Capital (to Risk Weighted Assets): Consolidated $ 1,115,257 14.19 % $ 825,234 10.50 % N/A N/A Tri Counties Bank $ 1,107,941 14.10 % $ 825,039 10.50 % $ 785,751 10.00 % Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 974,325 12.40 % $ 668,047 8.50 % N/A N/A Tri Counties Bank $ 1,009,577 12.85 % $ 667,888 8.50 % $ 628,601 8.00 % Common equity Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 917,565 11.67 % $ 550,156 7.00 % N/A N/A Tri Counties Bank $ 1,009,577 12.85 % $ 550,026 7.00 % $ 510,738 6.50 % Tier 1 Capital (to Average Assets): Consolidated $ 974,325 10.14 % $ 384,337 4.00 % N/A N/A Tri Counties Bank $ 1,009,577 10.51 % $ 384,146 4.00 % $ 480,183 5.00 % Actual Required for Capital Adequacy Purposes Required to be (in thousands) Amount Ratio Amount Ratio Amount Ratio As of December 31, 2021: Total Capital (to Risk Weighted Assets): Consolidated $ 893,294 15.42 % $ 608,258 10.50 % N/A N/A Tri Counties Bank $ 884,255 15.28 % $ 607,610 10.50 % $ 578,676 10.00 % Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 820,654 14.17 % $ 492,399 8.50 % N/A N/A Tri Counties Bank $ 811,713 14.03 % $ 491,875 8.50 % $ 462,941 8.00 % Common equity Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 764,319 13.19 % $ 405,505 7.00 % N/A N/A Tri Counties Bank $ 811,713 14.03 % $ 405,073 7.00 % $ 376,140 6.50 % Tier 1 Capital (to Average Assets): Consolidated $ 820,654 9.88 % $ 332,205 4.00 % N/A N/A Tri Counties Bank $ 811,713 9.77 % $ 332,196 4.00 % $ 415,245 5.00 %

Summary of Quarterly Results of

Summary of Quarterly Results of Operations (unaudited)	12 Months Ended
	Dec. 31, 2022
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Results of Operations (unaudited)	Summary of Quarterly Results of Operations (unaudited) The following tables set forth the results of operations for the four quarters of 2022 and 2021, and is unaudited; however, in the opinion of Management, it reflects all adjustments (which include only normal recurring adjustments) necessary to present fairly the summarized results for such periods. 2022 Quarters Ended (dollars in thousands, except per share data) December 31, September 30, June 30, March 31, Interest and dividend income: Loans: Discount accretion $ 1,751 $ 714 $ 1,677 $ 1,323 All other loan interest income 80,005 75,242 68,241 56,422 Total loan interest income 81,756 75,956 69,918 57,745 Debt securities, dividends and interest bearing cash at banks 21,233 20,410 17,037 11,450 Total interest income 102,989 96,366 86,955 69,195 Interest expense 4,089 2,260 1,909 1,271 Net interest income 98,900 94,106 85,046 67,924 Provision for credit losses 4,245 3,795 2,100 8,330 Net interest income after provision for credit losses 94,655 90,311 82,946 59,594 Noninterest income 15,880 15,640 16,430 15,096 Noninterest expense 59,469 54,465 56,264 46,447 Income before income taxes 51,066 51,486 43,112 28,243 Income tax expense 14,723 14,148 11,748 7,869 Net income $ 36,343 $ 37,338 $ 31,364 $ 20,374 Per common share: Net income (diluted) $ 1.09 $ 1.12 $ 0.93 $ 0.67 Dividends $ 0.30 $ 0.30 $ 0.25 $ 0.25 2021 Quarters Ended (dollars in thousands, except per share data) December 31, September 30, June 30, March 31, Interest and dividend income: Loans: Discount accretion $ 1,780 $ 2,034 $ 2,566 $ 1,712 All other loan interest income 59,024 58,691 57,738 58,724 Total loan interest income 60,804 60,725 60,304 60,436 Debt securities, dividends and interest bearing cash at banks 10,220 8,903 8,175 7,480 Total interest income 71,024 69,628 68,479 67,916 Interest expense 1,241 1,395 1,396 1,476 Net interest income 69,783 68,233 67,083 66,440 Provision for (benefit from reversal of) credit losses 980 (1,435) (260) (6,060) Net interest income after provision for (benefit from) credit losses 68,803 69,668 67,343 72,500 Noninterest income 16,502 15,095 15,957 16,110 Noninterest expense 46,679 45,807 44,171 41,618 Income before income taxes 38,626 38,956 39,129 46,992 Income tax expense 10,404 11,534 10,767 13,343 Net income $ 28,222 $ 27,422 $ 28,362 $ 33,649 Per common share: Net income (diluted) $ 0.94 $ 0.92 $ 0.95 $ 1.13 Dividends $ 0.25 $ 0.25 $ 0.25 $ 0.25

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2022
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 and retail banking business in 32 California counties. 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 obtained through acquisition. 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. For financial reporting purposes, the Company’s investments in the Capital Trusts of $1,757,000 are accounted for under the equity method and, accordingly, are included in other assets on the consolidated balance sheets. The subordinated debentures issued and guaranteed by the Company and held by the Capital Trusts are reflected as debt on the Company’s consolidated balance sheets.
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.
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.
Business Combinations	Business Combinations The Company accounts for acquisitions of businesses using the acquisition method of accounting. Under the acquisition method, assets acquired and liabilities assumed are recorded at their estimated fair values at the date of acquisition. Management utilizes various valuation techniques including discounted cash flow analyses to determine these fair values. Any excess of the purchase price over amounts allocated to the acquired assets, including identifiable intangible assets, and liabilities assumed is recorded as goodwill.
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of the consolidated statements of cash flows, cash and cash equivalents include cash on hand, amounts due from banks, and federal funds sold. Net cash flows are reported for loan and deposit transactions and other borrowings.
Non-Marketable and Other Equity Securities	Non-Marketable and Other Equity Securities Non-marketable and other equity securities include qualified public welfare investments and venture capital/private equity funds. Our accounting for investments in non-marketable and other equity securities depends on several factors, including the level of ownership, power to control and the legal structure of the subsidiary making the investment. We base our accounting for such securities on: (i) fair value accounting, (ii) measurement alternative for other investments without a readily determinable fair value, and (iii) equity method accounting. During the twelve months ended December 31, 2022 and 2021, the Company recognized net unrealized gains of $35,000 and $718,000, respectively, in the consolidated statements of net income related to changes in the fair value of non-marketable and other equity securities.
Debt Securities	Debt Securities The Company classifies its debt securities into one of three categories: trading, available for sale or held to maturity. Trading securities are bought and held principally for the purpose of selling in the near term and changes in the value of these securities are recorded through earnings. Held to maturity securities are those securities which the Company has the ability and intent to hold until maturity. These securities are carried at cost adjusted for amortization of premium and accretion of discount, computed by the effective interest method over their contractual lives. All other securities not included in trading or held to maturity are classified as available for sale. AFS securities are recorded at fair value. Unrealized gains and losses, net of the related tax effect, on available for sale securities are reported as a separate component of other accumulated comprehensive income in shareholders’ equity until realized. Discounts are amortized or accreted over the expected life of the related investment security as an adjustment to yield using the effective interest method. Premiums on callable debt securities are generally amortized to the earliest call date of the security with the exception of mortgage backed securities, where estimated prepayments, if any, are considered. Dividend and interest income are recognized when earned. Realized gains and losses are derived from the amortized cost of the security sold. The Company did not have any debt securities classified as trading during the three year period ended December 31, 2022. The Company has made a policy election to exclude accrued interest from the amortized cost basis of debt securities and report accrued interest separately in the consolidated balance sheets. A debt security is placed on nonaccrual status at the time any principal or interest payments become more than 90 days delinquent or if full collection of interest or principal becomes uncertain. Accrued interest for a security placed on nonaccrual is reversed against interest income. There was no accrued interest related to debt securities reversed against interest income for the years ended December 31, 2022, 2021 and 2020. The Company evaluates available for sale 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 years ended December 31, 2022, 2021 or 2020. For HTM debt securities, the Company measures expected credit losses on held-to-maturity debt securities on a collective basis by major security type, then further disaggregated by sector and bond rating. Accrued interest receivable on held-to-maturity (HTM) debt securities is excluded from the estimate of credit losses. The estimate of expected credit losses considers historical credit loss information that is adjusted for current condition 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 HTM 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 during the years ended December 31, 2022, 2021 or 2020.
Restricted Equity Securities	Restricted Equity Securities Restricted equity securities represent the Company’s investment in the stock of the Federal Home Loan Bank of San Francisco (“FHLB”) and are carried at par value, which reasonably approximates its fair value. While technically these are considered equity securities, there is no market for the FHLB stock. Therefore, the shares are considered as restricted investment securities. Management periodically evaluates FHLB stock for other-than-temporary impairment. Management’s determination of whether these investments are impaired is based on its assessment of the ultimate recoverability of cost rather than by recognizing temporary declines in value. The determination of whether a decline affects the ultimate recoverability of cost is influenced by criteria such as (1) the significance of any decline in net assets of the FHLB as compared to the capital stock amount for the FHLB and the length of time this situation has persisted, (2) commitments by the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance of the FHLB, (3) the impact of legislative and regulatory changes on institutions and, accordingly, the customer base of the FHLB, and (4) the liquidity position of the FHLB. As a member of the FHLB system, the Bank is required to maintain a minimum level of investment in FHLB stock based on specific percentages of its outstanding mortgages, total assets, or FHLB advances. The Bank may request redemption at par value of any stock in excess of the minimum required investment. Stock redemptions are at the discretion of the FHLB. Both cash and stock dividends are reported as income when received.
Loans Held for Sale	Loans Held for Sale Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or fair value, as determined by aggregate outstanding commitments from investors of current investor yield requirements. Net unrealized losses are recognized through a valuation allowance by charges to non-interest income. Mortgage loans held for sale are generally sold with the mortgage servicing rights retained by the Company. Gains or losses on the sale of loans that are held for sale are recognized at the time of the sale and determined by the difference between net sale proceeds and the net book value of the loans less the estimated fair value of any retained mortgage servicing rights.
Loans	Loans Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the principal amount outstanding, net of deferred loan fees and costs. Loan origination and commitment fees and certain direct loan origination costs are deferred, and the net amount is amortized as an adjustment to the related loan’s yield over the actual life of the loan. Loans on which the accrual of interest has been discontinued are designated as nonaccrual loans. 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. 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	Allowance for Credit Losses - Loans The Company measures credit losses under ASU 2016-03 Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which replaced the incurred loss methodology, and is referred to as the current expected credit loss (CECL) methodology. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized costs, including loan receivables and held-to-maturity debt securities. The allowance for credit losses (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 and U.S. gross domestic product. A loan is considered to be collateral dependent when repayment is expected to be provided substantially through the operation or sale of the collateral. The ACL on collateral dependent loans is measured using the fair value of the underlying collateral, adjusted for costs to sell when applicable, less the amortized cost basis of the financial asset. If the value of underlying collateral is determined to be less than the recorded amount of the loan, a charge-off will be taken. Loans for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, is considered to be a troubled debt restructuring (TDR). The ACL on a TDR is measured using the same method as all other portfolio loans, except when the value of a concession cannot be measured using a method other than the discounted cash flow method. When the value of a concession is measured using the discounted cash flow method, the ACL is determined by discounting the expected future cash flows at the original interest rate of the loan. PCD assets are assets acquired at a discount that is due, in part, to credit quality deterioration since origination which may be determined through observation of missed payments, downgrade in risk rating, deterioration of a borrower's financial trends or other observable factors including subjectivity utilized by management. PCD assets 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 consolidated balance sheets, while the allowance for acquired non-PCD assets, such as loans, is recorded through the provision for credit losses on the consolidated statements of income, 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 fifteen • 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 these 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.
Real Estate Owned	Real Estate Owned Real estate owned (REO) includes assets acquired through, or in lieu of, loan foreclosure. REO is held for sale and are initially recorded at fair value less estimated costs to sell at the date of acquisition, establishing a new cost basis. Physical possession of residential real estate property collateralizing a consumer mortgage loan occurs when legal title is obtained upon completion of foreclosure or when the borrower conveys all interest in the property to satisfy the loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Any write-downs based on the asset’s fair value less costs to sell at the date of acquisition are charged to the allowance for loan and lease losses. Any recoveries based on the asset’s fair value less estimated costs to sell in excess of the recorded value of the loan at the date of acquisition are recorded to the allowance for loan and lease losses. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. If fair value declines subsequent to foreclosure, a valuation allowance is recorded through expense. Operating costs after acquisition are expensed. Revenue and expenses from operations and changes in the valuation allowance are included in other non-interest expense, along with the gain or loss on sale of REO.
Premises and Equipment	Premises and Equipment Land is carried at cost. Land improvements, buildings and equipment, including those acquired under capital lease, are stated at cost less accumulated depreciation and amortization. Depreciation and amortization expenses are computed using the straight-line method over the shorter of the estimated useful lives of the related assets or lease terms. Asset lives range from 3-10 years for furniture and equipment and 15-40 years for land improvements and buildings.
Company Owned Life Insurance	Company Owned Life Insurance The Company has purchased life insurance policies on certain key executives. Company owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement. As a result of current tax law and the nature of these policies, the Bank records any increase in cash value of these policies as nontaxable non-interest income. If the Bank decided to surrender any of the policies prior to the death of the insured, such surrender may result in a tax expense related to the life-to-date cumulative increase in cash value of the policy. If the Bank retains such policies until the death of the insured, the Bank would receive nontaxable proceeds from the insurance company equal to the death benefit of the policies. The Bank has
Goodwill, Other Intangible and Long-Lived Assets	Goodwill, Other Intangible and Long-Lived Assets Goodwill represents the excess of costs over fair value of net assets of businesses acquired from a business combination. The Company has an identifiable intangible asset consisting of core deposit intangibles (“CDI”). CDI are amortized over their respective estimated useful lives and reviewed periodically for impairment. Goodwill and other intangible assets acquired in a business combination and determined to have an indefinite useful life are not amortized, but instead tested for impairment at least annually. Other intangible assets with estimable useful lives are amortized over their respective estimated useful lives to their estimated residual values, and reviewed periodically for impairment. As of September 30 of each year, goodwill is tested for impairment, and is tested for impairment more frequently if events and circumstances indicate that the asset might be impaired. An impairment loss is recognized to the extent that the carrying amount exceeds the asset’s fair value. Long-lived assets, such as premises and equipment, and purchased intangibles subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized by the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of would be separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and are no longer depreciated. The assets and liabilities of a disposed group classified as held for sale would be presented separately in the appropriate asset and liability sections of the consolidated balance sheet.
Mortgage Servicing Rights	Mortgage Servicing Rights Mortgage servicing rights (“MSR”) represent the Company’s right to a future stream of cash flows based upon the contractual servicing fee associated with servicing mortgage loans. Our MSR arise from residential and commercial mortgage loans that we originate and sell, but retain the right to service the loans. The net gain from the retention of the servicing right is included in gain on sale of loans in non-interest income when the loan is sold. Fair value is based on market prices for comparable mortgage servicing contracts, when available, or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. The valuation model incorporates assumptions that market participants would use in estimating future net servicing income, such as the cost to service, the discount rate, the custodial earnings rate, an inflation rate, ancillary income, prepayment speeds and default rates and losses. Servicing fees, when earned, and changes in fair value of the MSR, are recorded in non-interest income. The Company accounts for MSR at fair value. The determination of fair value of our MSR requires management judgment because they are not actively traded. The determination of fair value for MSR requires valuation processes which combine the use of discounted cash flow models and extensive analysis of current market data to arrive at an estimate of fair value. The cash flow and prepayment assumptions used in our discounted cash flow model are based on empirical data drawn from the historical performance of our MSR, which we believe are consistent with assumptions used by market participants valuing similar MSR, and from data obtained on the performance of similar MSR. The key assumptions used in the valuation of MSR include mortgage prepayment speeds and the discount rate. These variables can, and generally will, change from quarter to quarter as market conditions and projected interest rates change. The key risks inherent with MSR are prepayment speed and changes in interest rates.
Leases	Leases The Company records a right-of-use asset (“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 is also required to record a lease liability on the consolidated balance sheets for the present value of future payment commitments. Substantially 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 twelve months or less) within the ROUA and lease liability. Known or determinable adjustments to the required minimum future lease payments are 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 are not unknown and not determinable at lease commencement and therefore, are not included in the determination of the Company’s ROUA or lease liability.
Off-Balance Sheet Credit Related Financial Instruments	Off-Balance Sheet Credit Related Financial Instruments In the ordinary course of business, the Company has entered into commitments to extend credit, including commitments under credit card arrangements, commercial letters of credit, and standby letters of credit. Such financial instruments are recorded when they are funded.
Low Income Housing Tax Credits	Low Income Housing Tax Credits The Company accounts for low income housing tax credits and the related qualified affordable housing projects using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). Upon entering into a qualified affordable housing project, the Company records, in other liabilities, the entire amount that it has agreed to invest in the project, and an equal amount, in other assets, representing its investment in the project. As the Company disburses cash to satisfy its investment obligation, other liabilities are reduced. Over time, as the tax credits and other tax benefits of the project are realized by the Company, the investment recorded in other assets is reduced using the proportional amortization method.
Income Taxes	Income Taxes The Company’s accounting for income taxes is based on an asset and liability approach. The Company recognizes the amount of taxes payable or refundable for the current year, and deferred tax assets and liabilities for the future tax consequences that have been recognized in its financial statements or tax returns. The measurement of tax assets and liabilities is based on the provisions of enacted tax laws. A valuation allowance, if needed, reduces deferred tax assets to the expected amount most likely to be realized. Realization of deferred tax assets is dependent upon the generation of a sufficient level of future taxable income and recoverable taxes paid in prior years. Although realization is not assured, management believes it is more likely than not that all of the deferred tax assets will be realized. A tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded. Interest and/or penalties related to income taxes are reported as a component of non-interest income.
Share-Based Compensation	Share-Based Compensation Compensation cost is recognized for stock options and restricted stock awards issued to employees and directors, based on the fair value of the awards at the date of grant. The estimate of the fair value of stock options and performance based restricted awards are based on a Black-Scholes or Monte Carlo model, respectively, while the market price of the common stock at the date of grant is used for time based restricted awards. Compensation cost is recognized over the required service period, generally defined as the vesting or measurement period. The Company’s accounting policy is to recognize forfeitures as they occur.
Earnings per Share	Earnings per Share Basic earnings per share represents income available to common shareholders divided by the weighted-average number of common shares outstanding during the period. There are no unvested share-based payment awards that contain rights to nonforfeitable dividends (participating securities). Diluted earnings per share reflects 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 solely from outstanding stock options and restricted stock units, and are determined using the treasury stock method.
Revenue Recognition	Revenue Recognition The Company records revenue from contracts with customers in accordance with Accounting Standards Codification Topic 606, “Revenue from Contracts with Customers” (“Topic 606”). Under Topic 606, the Company must identify the contract with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract, and recognize revenue when (or as) the Company satisfies a performance obligation. Most of our revenue-generating transactions are not subject to Topic 606, including revenue generated from financial instruments, such as our loans and investment securities. In addition, certain non-interest income streams such as fees associated with mortgage servicing rights, financial guarantees, derivatives, and certain credit card fees are also not in scope of the new guidance. The Company’s non-interest revenue streams are largely based on transactional activity, or standard month-end revenue accruals such as asset management fees based on month-end market values. Consideration is often received immediately or shortly after the Company satisfies its performance obligation and revenue is recognized. The Company does not typically enter into long-term revenue contracts with customers, and therefore, does not experience significant contract balances. As of December 31, 2022 and December 31, 2021, the Company did not have any significant contract balances. The Company has evaluated the nature of its revenue streams and determined that further disaggregation of revenue into more granular categories beyond what is presented in Note 18 was not necessary. The following are descriptions of revenues within the scope of ASC 606. Deposit service charges The Company earns fees from its deposit customers for account maintenance, transaction-based and overdraft services. Account maintenance fees consist primarily of account fees and analyzed account fees charged on deposit accounts on a monthly basis. The performance obligation is satisfied and the fees are recognized on a monthly basis as the service period is completed. Transaction-based fees on deposit accounts are charged to deposit customers for specific services provided to the customer, such as non-sufficient funds fees, overdraft fees, and wire fees. The performance obligation is completed as the transaction occurs and the fees are recognized at the time each specific service is provided to the customer. Debit and ATM interchange fees Debit and ATM interchange income represent fees earned when a debit card issued by the Company is used. The Company earns interchange fees from debit cardholder transactions through the Visa payment network. Interchange fees from cardholder transactions represent a percentage of the underlying transaction value and are recognized daily, concurrently with the transaction processing services provided to the cardholder. The performance obligation is satisfied and the fees are earned when the cost of the transaction is charged to the cardholders’ debit card. Certain expenses directly associated with the credit and debit card are recorded on a net basis with the interchange income. Commission on sale of non-deposit investment products Commissions on sale of non-deposit investment products consist of fees earned from advisory asset management, trade execution and administrative fees from investments. Advisory asset management fees are variable, since they are based on the underlying portfolio value, which is subject to market conditions and asset flows. Advisory asset management fees are recognized quarterly and are based on the portfolio values at the end of each quarter. Brokerage accounts are charged commissions at the time of a transaction and the commission schedule is based upon the type of security and quantity. In addition, revenues are earned from selling insurance and annuity policies. The amount of revenue earned is determined by the value and type of each instrument sold and is recognized at the time the policy or contract is written. Merchant fee income Merchant fee income represents fees earned by the Company for card payment services provided to its merchant customers. The Company outsources these services to a third party to provide card payment services to these merchants. The third party provider passes the payments made by the merchants through to the Company. The Company, in turn, pays the third party provider for the services it provides to the merchants. These payments to the third party provider are recorded as expenses as a net reduction against fee income. In addition, a portion of the payment received represents interchange fees which are passed through to the card issuing bank. Income is primarily earned based on the dollar volume and number of transactions processed. The performance obligation is satisfied and the related fee is earned when each payment is accepted by the processing network. Gain/loss on other real estate owned, net The Company records a gain or loss from the sale of other real estate owned when control of the property transfers to the buyer, which generally occurs at the time of an executed deed of trust. When the Company finances the sale of other real estate owned to the buyer, the Company assesses whether the buyer is committed to perform their obligations under the contract and whether collectability of the transaction price is probable. Once these criteria are met, the other real estate owned asset is derecognized and the gain or loss on sale is recorded upon the transfer of control of the property to the buyer. In determining the gain or loss on sale, the Company adjusts the transaction price and related gain or loss on sale if a significant financing component is present. Gains or losses from transactions associated with other real estate owned are recorded as a component of non-interest expense.
Reclassifications	Reclassifications Certain amounts reported in previous consolidated financial statements have been reclassified and recalculated to conform to the presentation in this report. These reclassifications did not affect previously reported amounts of net income, total assets or total shareholders’ equity.
Accounting Standards Adopted in 2022 and Accounting Standards Pending Adoption	Accounting Standards Adopted in 2022 In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This ASU provides temporary optional guidance to ease the potential burden in accounting for reference rate reform by providing optional expedients and exceptions for applying generally accepted accounting principles (GAAP) to contracts, hedging relationships, and other transactions affected if certain criteria are met. At the time that Update 2020-04 was issued, the UK Financial Conduct Authority (FCA) had established its intent that it would no longer be necessary to persuade, or compel, banks to submit to LIBOR after December 31, 2021. As a result, the sunset provision was set for December 31, 2022—12 months after the expected cessation date of all currencies and tenors of LIBOR. In March 2021, the FCA announced that the intended cessation date of the overnight 1-, 3-, 6-, and 12-month tenors of USD LIBOR would be June 30, 2023, which is beyond the current sunset date of Topic 848. Because the current relief in Topic 848 may not cover a period of time during which a significant number of modifications may take place, the amendments in this Update defer the sunset date of Topic 848 from December 31, 2022, to December 31, 2024. As the Company has an insignificant number of instruments that are applicable to this ASU, management has determined that no impact to the valuations of these instruments are applicable for financial reporting purposes. Accounting Standards Pending Adoption In March 2022, the FASB issued ASU 2022-02, Financial Instruments — Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures. The amendments in this Update eliminate the TDR recognition and measurement guidance and, instead, require that an entity evaluate (consistent with the accounting for other loan modifications) whether the modification represents a new loan or a continuation of an existing loan. The amendments enhance existing disclosure requirements and introduce new requirements related to certain modifications of receivables made to borrowers experiencing financial difficulty. Furthermore, the amendments in this Update require that an entity disclose current-period gross write-offs by year of origination for financing receivables and net investment in leases within the scope of Subtopic 326-20. The Company adopted these amendments on January 1, 2023 and has thus far observed no material impact to

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2022
Business Combinations [Abstract]
Schedule of Fair Value of Consideration Transferred, Assets Acquired and Liabilities Assumed	The following table summarizes the consideration paid for VRB and the amounts of assets acquired and liabilities assumed that were recorded at the acquisition date (in thousands): Estimated Fair Value Adjustments Fair Value December 31, 2022 Fair value of consideration transferred: Fair value of shares issued $ 173,585 $ — $ 173,585 Cash consideration 431 — 431 Total fair value of consideration transferred 174,016 — 174,016 Assets acquired: Cash and cash equivalents 427,314 — 427,314 Securities available for sale 109,716 — 109,716 Loans and leases 771,353 — 771,353 Premises and equipment 4,658 — 4,658 Cash value of life insurance 13,609 — 13,609 Core deposit intangible 10,635 — 10,635 Other assets 26,244 3,500 29,744 Total assets acquired 1,363,529 3,500 1,367,029 Liabilities assumed: Deposits (1,215,479) — (1,215,479) Subordinated debt (47,236) — (47,236) SERP liability (3,352) — (3,352) Other liabilities (10,516) — (10,516) Total liabilities assumed (1,276,583) — (1,276,583) Total net assets acquired 86,946 — 90,446 Goodwill recognized $ 87,070 $ (3,500) $ 83,570

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Amortized Cost and Estimated Fair Values of Investments Securities	The amortized cost and estimated fair values of investment securities classified as available for sale and held to maturity are summarized in the following tables: December 31, 2022 Amortized Gross Gross Estimated (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 1,568,408 $ 3 $ (195,642) $ 1,372,769 Obligations of states and political subdivisions 332,625 401 (39,821) 293,205 Corporate bonds 6,164 — (413) 5,751 Asset backed securities 454,943 17 (15,193) 439,767 Non-agency collateralized mortgage obligations 380,847 — (39,901) 340,946 Total debt securities available for sale $ 2,742,987 $ 421 $ (290,970) $ 2,452,438 Debt Securities Held to Maturity Obligations of U.S. government agencies $ 154,830 $ 2 $ (11,013) $ 143,819 Obligations of states and political subdivisions 6,153 13 (47) 6,119 Total debt securities held to maturity $ 160,983 $ 15 $ (11,060) $ 149,938 December 31, 2021 Amortized Gross Gross Estimated (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 1,260,226 $ 8,193 $ (11,030) $ 1,257,389 Obligations of states and political subdivisions 187,197 5,832 (785) 192,244 Corporate bonds 6,722 34 — 6,756 Asset backed securities 408,329 2,354 (1,131) 409,552 Non-agency collateralized mortgage obligations 345,856 — (3,859) 341,997 Total debt securities available for sale $ 2,208,330 $ 16,413 $ (16,805) $ 2,207,938 Debt Securities Held to Maturity Obligations of U.S. government agencies $ 192,068 $ 8,131 $ — $ 200,199 Obligations of states and political subdivisions 7,691 250 — 7,941 Total debt securities held to maturity $ 199,759 $ 8,381 $ — $ 208,140
Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity	Debt Securities Available for Sale Held to Maturity (In thousands) Amortized Estimated Amortized Estimated Due in one year $ 57,685 $ 56,111 $ — $ — Due after one year through five years 125,533 120,116 3,730 3,616 Due after five years through ten years 418,008 395,462 14,721 13,998 Due after ten years 2,141,761 1,880,749 142,532 132,324 Totals $ 2,742,987 $ 2,452,438 $ 160,983 $ 149,938
Gross Unrealized Losses on Investment Securities	Gross unrealized losses on investment 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: Less than 12 months 12 months or more Total Fair Unrealized Fair Unrealized Fair Unrealized December 31, 2022 (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 766,612 $ (134,234) $ 605,615 $ (61,408) $ 1,372,227 $ (195,642) Obligations of states and political subdivisions 43,282 (12,917) 219,532 (26,904) 262,814 (39,821) Corporate bonds — — 5,751 (413) 5,751 (413) Asset backed securities 205,329 (10,238) 231,703 (4,955) 437,032 (15,193) Non-agency collateralized mortgage obligations 203,620 (36,480) 123,075 (3,421) 326,695 (39,901) Total debt securities available for sale $ 1,218,843 $ (193,869) $ 1,185,676 $ (97,101) $ 2,404,519 $ (290,970) Debt Securities Held to Maturity Obligations of U.S. government agencies $ — $ — $ 143,577 $ (11,013) $ 143,577 $ (11,013) Obligations of states and political subdivisions — — 4,530 (47) 4,530 (47) Total debt securities held to maturity $ — $ — $ 148,107 $ (11,060) $ 148,107 $ (11,060) Less than 12 months 12 months or more Total Fair Unrealized Fair Unrealized Fair Unrealized December 31, 2021 (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 947,108 $ (9,737) $ 44,086 $ (1,293) $ 991,194 $ (11,030) Obligations of states and political subdivisions 56,153 (785) — — 56,153 (785) Asset backed securities 62,792 (259) 109,748 (872) 172,540 (1,131) Non-agency collateralized mortgage obligations 327,045 (3,859) — — 327,045 (3,859) Total securities available for sale $ 1,393,098 $ (14,640) $ 153,834 $ (2,165) $ 1,546,932 $ (16,805)
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: December 31, 2022 December 31, 2021 AAA/AA/A BBB/BB/B AAA/AA/A BBB/BB/B (In thousands) (In thousands) Debt Securities Held to Maturity Obligations of U.S. government agencies $ 154,830 $ — $ 192,068 $ — Obligations of states and political subdivisions 6,153 — 7,691 — Total debt securities held to maturity $ 160,983 $ — $ 199,759 $ —

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2022
Receivables [Abstract]
Summary of Loan Balances	A summary of loan balances follows: (in thousands) December 31, 2022 December 31, 2021 Commercial real estate: CRE non-owner occupied $ 2,149,725 $ 1,603,141 CRE owner occupied 984,807 706,307 Multifamily 944,537 823,500 Farmland 280,014 173,106 Total commercial real estate loans 4,359,083 3,306,054 Consumer: SFR 1-4 1st DT liens 790,349 666,960 SFR HELOCs and junior liens 393,666 337,513 Other 56,728 67,078 Total consumer loans 1,240,743 1,071,551 Commercial and industrial 569,921 259,355 Construction 211,560 222,281 Agriculture production 61,414 50,811 Leases 7,726 6,572 Total loans, net of deferred loan fees and discounts $ 6,450,447 $ 4,916,624 Total principal balance of loans owed, net of charge-offs $ 6,496,210 $ 4,946,653 Unamortized net deferred loan fees (15,275) (13,922) Discounts to principal balance of loans owed, net of charge-offs (30,488) (16,107) Total loans, net of unamortized deferred loan fees and discounts $ 6,450,447 $ 4,916,624 Allowance for credit losses $ (105,680) $ (85,376)

Allowance for Credit Losses (Ta

Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2022
Allowance For Loan And Lease Losses [Abstract]
Components of Allowance for Credit Losses	The table below sets forth the components of the Company’s allowance for credit losses as of the dates indicated: (dollars in thousands) December 31, 2022 December 31, 2021 Allowance for credit losses: Qualitative and forecast factor allowance $ 70,777 $ 59,855 Quantitative (Cohort) model allowance reserves 32,489 24,539 Total allowance for credit losses 103,266 84,394 Allowance for individually evaluated loans 2,414 982 Total allowance for credit losses $ 105,680 $ 85,376
Summary of Loans and Leases Purchased and Acquired with Credit Deterioration	The following table provides a summary of loans and leases purchased as part of the VRB acquisition with credit deterioration (PCD) at acquisition: As of March 25, 2022 (in thousands) Commercial Real Estate Consumer Commercial and Industrial Construction Agriculture Production Total Par value $ 27,237 $ 3,877 $ 2,674 $ 25,645 $ 9,080 $ 68,513 ACL at acquisition (1,573) (144) (81) (201) (38) (2,037) Non-credit discount (2,305) (360) (47) (232) (12) (2,956) Purchase price $ 23,359 $ 3,373 $ 2,546 $ 25,212 $ 9,030 $ 63,520
Summary of Activity in Allowance for Loan Losses, and Ending Balance of Loans, Net of Unearned Fees for Periods Indicated	The following tables summarize the activity in the allowance for credit losses, and ending balance of loans, net of unearned fees for the periods indicated. Allowance for Credit Losses – December 31, 2022 (in thousands) Beginning ACL on PCD Loans Charge-offs Recoveries Provision for Ending Commercial real estate: CRE non-owner occupied $ 25,739 $ 746 $ — $ 1 $ 4,476 $ 30,962 CRE owner occupied 10,691 63 — 2 3,258 14,014 Multifamily 12,395 — — — 737 13,132 Farmland 2,315 764 (294) — 488 3,273 Total commercial real estate loans 51,140 1,573 (294) 3 8,959 61,381 Consumer: SFR 1-4 1st DT liens 10,723 144 — 79 322 11,268 SFR HELOCs and junior liens 10,510 — (22) 429 496 11,413 Other 2,241 — (572) 235 54 1,958 Total consumer loans 23,474 144 (594) 743 872 24,639 Commercial and industrial 3,862 81 (697) 1,157 9,194 13,597 Construction 5,667 201 — — (726) 5,142 Agriculture production 1,215 38 — 4 (351) 906 Leases 18 — — — (3) 15 Allowance for credit losses on loans 85,376 2,037 (1,585) 1,907 17,945 105,680 Reserve for unfunded commitments 3,790 — — — 525 4,315 Total $ 89,166 $ 2,037 $ (1,585) $ 1,907 $ 18,470 $ 109,995 Allowance for Credit Losses – December 31, 2021 (in thousands) Beginning Charge-offs Recoveries Provision for Ending Commercial real estate: CRE non-owner occupied $ 29,380 $ — $ 12 $ (3,653) $ 25,739 CRE owner occupied 10,861 (18) 794 (946) 10,691 Multifamily 11,472 — — 923 12,395 Farmland 1,980 (126) — 461 2,315 Total commercial real estate loans 53,693 (144) 806 (3,215) 51,140 Consumer: SFR 1-4 1st DT liens 10,117 (145) 13 738 10,723 SFR HELOCs and junior liens 11,771 (29) 1,127 (2,359) 10,510 Other 3,260 (577) 361 (803) 2,241 Total consumer loans 25,148 (751) 1,501 (2,424) 23,474 Commercial and industrial 4,252 (1,470) 755 325 3,862 Construction 7,540 (27) — (1,846) 5,667 Agriculture production 1,209 — 24 (18) 1,215 Leases 5 — — 13 18 Allowance for credit losses on loans 91,847 (2,392) 3,086 (7,165) 85,376 Reserve for unfunded commitments 3,400 — — 390 3,790 Total $ 95,247 $ (2,392) $ 3,086 $ (6,775) $ 89,166 Allowance for Credit Losses – December 31, 2020 (in thousands) Beginning Impact of CECL Adoption Charge-offs Recoveries Provision for Ending Commercial real estate: CRE non-owner occupied $ 5,948 $ 6,701 $ — $ 198 $ 16,533 $ 29,380 CRE owner occupied 2,027 2,281 — 28 6,525 10,861 Multifamily 3,352 2,281 — — 5,839 11,472 Farmland 668 585 (182) — 909 1,980 Total commercial real estate loans 11,995 11,848 (182) 226 29,806 53,693 Consumer: SFR 1-4 1st DT liens 2,306 2,675 (13) 416 4,733 10,117 SFR HELOCs and junior liens 6,183 4,638 (116) 304 762 11,771 Other 1,595 971 (670) 347 1,017 3,260 Total consumer loans 10,084 8,284 (799) 1,067 6,512 25,148 Commercial and industrial 4,867 (1,961) (774) 568 1,552 4,252 Construction 3,388 933 — — 3,219 7,540 Agriculture production 261 (179) — 24 1,103 1,209 Leases 21 (12) — — (4) 5 Allowance for credit losses on loans 30,616 18,913 (1,755) 1,885 42,188 91,847 Reserve for unfunded commitments 2,775 — — — 625 3,400 Total $ 33,391 $ 18,913 $ (1,755) $ 1,885 $ 42,813 $ 95,247
Schedule Credit Quality Indicators	The following tables present ending loan balances by loan category and risk grade for the periods indicated: Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2022 (in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: CRE non-owner occupied risk ratings Pass $ 399,910 $ 304,636 $ 152,960 $ 221,659 $ 147,842 $ 748,994 $ 123,794 $ — $ 2,099,795 Special Mention — — — 20,033 — 21,681 1,346 — 43,060 Substandard — 864 768 — 1,059 4,179 — — 6,870 Doubtful/Loss — — — — — — — — — Total CRE non-owner occupied risk ratings $ 399,910 $ 305,500 $ 153,728 $ 241,692 $ 148,901 $ 774,854 $ 125,140 $ — $ 2,149,725 Commercial real estate: CRE owner occupied risk ratings Pass $ 210,101 $ 197,787 $ 120,929 $ 64,244 $ 49,755 $ 251,137 $ 43,343 $ — $ 937,296 Special Mention 131 16,296 234 731 — 6,971 879 — 25,242 Substandard 3,213 — 5,249 1,893 1,103 10,654 157 — 22,269 Doubtful/Loss — — — — — — — — — Total CRE owner occupied risk ratings $ 213,445 $ 214,083 $ 126,412 $ 66,868 $ 50,858 $ 268,762 $ 44,379 $ — $ 984,807 Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2022 (in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: Multifamily risk ratings Pass $ 159,318 $ 290,170 $ 96,937 $ 108,586 $ 106,287 $ 154,125 $ 28,989 $ — $ 944,412 Special Mention — — — — — — — — — Substandard — — — — — 125 — — 125 Doubtful/Loss — — — — — — — — — Total multifamily loans $ 159,318 $ 290,170 $ 96,937 $ 108,586 $ 106,287 $ 154,250 $ 28,989 $ — $ 944,537 Commercial real estate: Farmland risk ratings Pass $ 47,067 $ 53,275 $ 16,739 $ 18,589 $ 12,386 $ 34,528 $ 53,684 $ — $ 236,268 Special Mention 3,139 783 246 5,000 — 3,991 14,275 — 27,434 Substandard — — 1,772 765 3,158 7,094 3,523 — 16,312 Doubtful/Loss — — — — — — — — — Total farmland loans $ 50,206 $ 54,058 $ 18,757 $ 24,354 $ 15,544 $ 45,613 $ 71,482 $ — $ 280,014 Consumer loans: SFR 1-4 1st DT liens risk ratings Pass $ 194,933 $ 265,370 $ 131,922 $ 33,395 $ 28,545 $ 115,469 $ 8 $ 2,924 $ 772,566 Special Mention — — 1,531 282 3,277 5,854 — 465 11,409 Substandard — 1,204 — — 1,004 3,521 — 645 6,374 Doubtful/Loss — — — — — — — — — Total SFR 1st DT liens $ 194,933 $ 266,574 $ 133,453 $ 33,677 $ 32,826 $ 124,844 $ 8 $ 4,034 $ 790,349 Consumer loans: SFR HELOCs and Junior Liens risk ratings Pass $ 505 $ — $ — $ — $ — $ 127 $ 378,939 $ 8,462 $ 388,033 Special Mention — — — — — — 1,842 81 1,923 Substandard — — — — — — 3,072 638 3,710 Doubtful/Loss — — — — — — — — — Total SFR HELOCs and Junior Liens $ 505 $ — $ — $ — $ — $ 127 $ 383,853 $ 9,181 $ 393,666 Consumer loans: Other risk ratings Pass $ 14,070 $ 12,990 $ 10,211 $ 10,650 $ 5,225 $ 1,945 $ 899 $ — $ 55,990 Special Mention — 18 77 135 176 32 47 — 485 Substandard — — 42 92 — 96 23 — 253 Doubtful/Loss — — — — — — — — — Total other consumer loans $ 14,070 $ 13,008 $ 10,330 $ 10,877 $ 5,401 $ 2,073 $ 969 $ — $ 56,728 Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2022 (in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial and industrial loans: Commercial and industrial risk ratings Pass $ 125,710 $ 64,966 $ 17,746 $ 23,131 $ 7,628 $ 5,051 $ 297,341 $ 483 $ 542,056 Special Mention 3,032 139 21 49 138 768 11,547 — 15,694 Substandard 1,293 1,142 5,179 14 33 611 3,798 101 12,171 Doubtful/Loss — — — — — — — — Total commercial and industrial loans $ 130,035 $ 66,247 $ 22,946 $ 23,194 $ 7,799 $ 6,430 $ 312,686 $ 584 $ 569,921 Construction loans: Construction risk ratings Pass $ 72,840 $ 72,308 $ 43,409 $ 15,358 $ 2,159 $ 4,900 $ — $ — $ 210,974 Special Mention — — — — — — — — — Substandard — — — 457 — 129 — — 586 Doubtful/Loss — — — — — — — — — Total construction loans $ 72,840 $ 72,308 $ 43,409 $ 15,815 $ 2,159 $ 5,029 $ — $ — $ 211,560 Agriculture production loans: Agriculture production risk ratings Pass $ 3,414 $ 2,777 $ 1,149 $ 1,104 $ 8,902 $ 1,058 $ 38,425 $ — $ 56,829 Special Mention — — — — 90 31 1,632 — 1,753 Substandard — — — — — — 2,832 — 2,832 Doubtful/Loss — — — — — — — — — Total agriculture production loans $ 3,414 $ 2,777 $ 1,149 $ 1,104 $ 8,992 $ 1,089 $ 42,889 $ — $ 61,414 Leases: Lease risk ratings Pass $ 7,726 $ — $ — $ — $ — $ — $ — $ — $ 7,726 Special Mention — — — — — — — — — Substandard — — — — — — — — — Doubtful/Loss — — — — — — — — — Total leases $ 7,726 $ — $ — $ — $ — $ — $ — $ — $ 7,726 Total loans outstanding: Risk ratings Pass $ 1,235,594 $ 1,264,279 $ 592,002 $ 496,716 $ 368,729 $ 1,317,334 $ 965,422 $ 11,869 $ 6,251,945 Special Mention 6,302 17,236 2,109 26,230 3,681 39,328 31,568 546 127,000 Substandard 4,506 3,210 13,010 3,221 6,357 26,409 13,405 1,384 71,502 Doubtful/Loss — — — — — — — — — Total loans outstanding $ 1,246,402 $ 1,284,725 $ 607,121 $ 526,167 $ 378,767 $ 1,383,071 $ 1,010,395 $ 13,799 $ 6,450,447 Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2021 (in thousands) 2021 2020 2019 2018 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: CRE non-owner occupied risk ratings Pass $ 275,305 $ 127,299 $ 199,764 $ 133,046 $ 224,581 $ 543,430 $ 49,899 $ — $ 1,553,324 Special Mention — — 8,386 399 4,390 20,612 1,732 — 35,519 Substandard — — — 1,382 739 12,177 — — 14,298 Doubtful/Loss — — — — — — — — — Total CRE non-owner occupied risk ratings $ 275,305 $ 127,299 $ 208,150 $ 134,827 $ 229,710 $ 576,219 $ 51,631 $ — $ 1,603,141 Commercial real estate: CRE owner occupied risk ratings Pass $ 178,092 $ 104,571 $ 63,979 $ 48,721 $ 55,399 $ 203,431 $ 22,745 $ — $ 676,938 Special Mention 15,515 — — 289 2,964 3,833 — — 22,601 Substandard — — 858 1,214 455 4,241 — — 6,768 Doubtful/Loss — — — — — — — — — Total CRE owner occupied risk ratings $ 193,607 $ 104,571 $ 64,837 $ 50,224 $ 58,818 $ 211,505 $ 22,745 $ — $ 706,307 Commercial real estate: Multifamily risk ratings Pass $ 278,942 $ 100,752 $ 71,822 $ 109,374 $ 85,932 $ 146,984 $ 25,236 $ — $ 819,042 Special Mention — — — — — — — — — Substandard — — 4,305 — — 153 — — 4,458 Doubtful/Loss — — — — — — — — — Total multifamily loans $ 278,942 $ 100,752 $ 76,127 $ 109,374 $ 85,932 $ 147,137 $ 25,236 $ — $ 823,500 Commercial real estate: Farmland risk ratings Pass $ 43,601 $ 17,399 $ 20,223 $ 15,119 $ 9,129 $ 18,455 $ 37,612 $ — $ 161,538 Special Mention — — — — 1,197 2,519 1,491 — 5,207 Substandard — — 2,895 — 578 1,371 1,517 — 6,361 Doubtful/Loss — — — — — — — — — Total farmland loans $ 43,601 $ 17,399 $ 23,118 $ 15,119 $ 10,904 $ 22,345 $ 40,620 $ — $ 173,106 Consumer loans: SFR 1-4 1st DT liens risk ratings Pass $ 268,743 $ 159,860 $ 40,661 $ 30,880 $ 36,197 $ 113,519 $ — $ 3,527 $ 653,387 Special Mention — — 286 3,282 416 1,476 — 383 5,843 Substandard 1,103 — — 1,089 256 4,758 — 524 7,730 Doubtful/Loss — — — — — — — — — Total SFR 1st DT liens $ 269,846 $ 159,860 $ 40,947 $ 35,251 $ 36,869 $ 119,753 $ — $ 4,434 $ 666,960 Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2021 (in thousands) 2021 2020 2019 2018 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Consumer loans: SFR HELOCs and Junior Liens risk ratings Pass $ 494 $ — $ — $ — $ — $ 185 $ 317,381 $ 9,675 $ 327,735 Special Mention — — — — — 53 3,655 832 4,540 Substandard — — — — — 2 4,164 1,072 5,238 Doubtful/Loss — — — — — — — — — Total SFR HELOCs and Junior Liens $ 494 $ — $ — $ — $ — $ 240 $ 325,200 $ 11,579 $ 337,513 Consumer loans: Other risk ratings Pass $ 20,920 $ 15,939 $ 17,316 $ 8,016 $ 2,137 $ 1,079 $ 612 $ — $ 66,019 Special Mention — 46 157 233 98 51 69 — 654 Substandard — 53 96 94 67 85 10 — 405 Doubtful/Loss — — — — — — — — — Total other consumer loans $ 20,920 $ 16,038 $ 17,569 $ 8,343 $ 2,302 $ 1,215 $ 691 $ — $ 67,078 Commercial and industrial loans: Commercial and industrial risk ratings Pass $ 92,972 $ 17,933 $ 27,335 $ 11,335 $ 6,355 $ 6,774 $ 89,358 $ 860 $ 252,922 Special Mention — 2,417 69 152 71 80 116 — 2,905 Substandard — — 146 152 804 414 1,832 180 3,528 Doubtful/Loss — Total commercial and industrial loans $ 92,972 $ 20,350 $ 27,550 $ 11,639 $ 7,230 $ 7,268 $ 91,306 $ 1,040 $ 259,355 Construction loans: Construction risk ratings Pass $ 66,318 $ 79,567 $ 58,383 $ 4,849 $ 1,716 $ 8,148 $ — $ — $ 218,981 Special Mention — — — — — — — — — Substandard 2,675 472 — — — 153 — — 3,300 Doubtful/Loss — — — — — — — — — Total construction loans $ 68,993 $ 80,039 $ 58,383 $ 4,849 $ 1,716 $ 8,301 $ — $ — $ 222,281 Agriculture production loans: Agriculture production risk ratings Pass $ 2,068 $ 878 $ 1,393 $ 801 $ 940 $ 853 $ 43,686 $ — $ 50,619 Special Mention — — — 150 — 42 — — 192 Substandard — — — — — — — — — Doubtful/Loss — — — — — — — — — Total agriculture production loans $ 2,068 $ 878 $ 1,393 $ 951 $ 940 $ 895 $ 43,686 $ — $ 50,811 Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2021 (in thousands) 2021 2020 2019 2018 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Leases: Lease risk ratings Pass $ 6,572 $ — $ — $ — $ — $ — $ — $ — $ 6,572 Special Mention — — — — — — — — — Substandard — — — — — — — — — Doubtful/Loss — — — — — — — — — Total leases $ 6,572 $ — $ — $ — $ — $ — $ — $ — $ 6,572 Total loans outstanding: Risk ratings Pass $ 1,234,027 $ 624,198 $ 500,876 $ 362,141 $ 422,386 $ 1,042,858 $ 586,529 $ 14,062 $ 4,787,077 Special Mention 15,515 2,463 8,898 4,505 9,136 28,666 7,063 1,215 77,461 Substandard 3,778 525 8,300 3,931 2,899 23,354 7,523 1,776 52,086 Doubtful/Loss — — — — — — — — — Total loans outstanding $ 1,253,320 $ 627,186 $ 518,074 $ 370,577 $ 434,421 $ 1,094,878 $ 601,115 $ 17,053 $ 4,916,624
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 December 31, 2022 (in thousands) 30-59 days 60-89 days > 90 days Total Past Current Total Commercial real estate: CRE non-owner occupied $ — $ — $ — $ — $ 2,149,725 $ 2,149,725 CRE owner occupied — 98 75 173 984,634 984,807 Multifamily 159 — — 159 944,378 944,537 Farmland — — — 0 280,014 280,014 Total commercial real estate loans 159 98 75 332 4,358,751 4,359,083 Consumer: SFR 1-4 1st DT liens 24 — 279 303 790,046 790,349 SFR HELOCs and junior liens 172 166 707 1,045 392,621 393,666 Other 26 34 55 115 56,613 56,728 Total consumer loans 222 200 1,041 1,463 1,239,280 1,240,743 Commercial and industrial 2,300 190 283 2,773 567,148 569,921 Construction — — 379 379 211,181 211,560 Agriculture production — — — — 61,414 61,414 Leases — — — — 7,726 7,726 Total $ 2,681 $ 488 $ 1,778 $ 4,947 $ 6,445,500 $ 6,450,447 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 December 31, 2021 (in thousands) 30-59 days 60-89 days > 90 days Total Past Current Total Commercial real estate: CRE non-owner occupied $ 226 $ 37 $ — $ 263 $ 1,602,878 $ 1,603,141 CRE owner occupied 271 127 273 671 705,636 706,307 Multifamily — — — — 823,500 823,500 Farmland — — 575 575 172,531 173,106 Total commercial real estate loans 497 164 848 1,509 3,304,545 3,306,054 Consumer: SFR 1-4 1st DT liens — 13 362 375 666,585 666,960 SFR HELOCs and junior liens 36 361 1,212 1,609 335,904 337,513 Other 109 7 28 144 66,934 67,078 Total consumer loans 145 381 1,602 2,128 1,069,423 1,071,551 Commercial and industrial 146 245 166 557 258,798 259,355 Construction — 90 — 90 222,191 222,281 Agriculture production 48 — — 48 50,763 50,811 Leases — — — — 6,572 6,572 Total $ 836 $ 880 $ 2,616 $ 4,332 $ 4,912,292 $ 4,916,624
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 December 31, 2022 As of December 31, 2021 (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 $ 1,739 $ 1,739 $ — $ 7,899 $ 7,899 $ — CRE owner occupied 4,938 4,938 — 4,763 5,036 — Multifamily 125 125 — 4,457 4,457 — Farmland 1,772 1,772 — 452 3,020 — Total commercial real estate loans 8,574 8,574 — 17,571 20,412 — Consumer: SFR 1-4 1st DT liens 4,117 4,220 — 3,594 3,595 — SFR HELOCs and junior liens 2,498 3,155 — 3,285 3,801 — Other 47 84 — 48 71 — Total consumer loans 6,662 7,459 — 6,927 7,467 — Commercial and industrial 1,224 3,518 — 1,904 2,416 — Construction 491 491 — 15 55 — Agriculture production 1,279 1,279 — — — — Leases — — — — — — Sub-total 18,230 21,321 — 26,417 30,350 — Less: Guaranteed loans (105) (225) — (713) (775) — Total, net $ 18,125 $ 21,096 $ — $ 25,704 $ 29,575 $ —
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 December 31, 2022 (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 $ 777 $ 98 $ — $ 864 $ — $ — $ — $ — $ — $ — $ — $ 1,739 CRE owner occupied 548 75 1,103 3,212 — — — — — — — 4,938 Multifamily — — — — 125 — — — — — — 125 Farmland — — — — — 1,772 — — — — — 1,772 Total commercial real estate loans 1,325 173 1,103 4,076 125 1,772 — — — — 8,574 Consumer: SFR 1-4 1st DT liens — — — — — — 4,220 — — — — 4,220 SFR HELOCs and junior liens — — — — — — 1,664 1,121 — — — 2,785 Other — — — 5 — — — — 61 — 2 68 Total consumer loans — — — 5 — — 5,884 1,121 61 — 2 7,073 Commercial and industrial — — — 1,874 — — — — — 1,596 48 3,518 Construction — — — 379 — — 112 — — — — 491 Agriculture production — — — — — — — — — — 1,279 1,279 Leases — — — — — — — — — — — — Total $ 1,325 $ 173 $ 1,103 $ 6,334 $ 125 $ 1,772 $ 5,996 $ 1,121 $ 61 $ 1,596 $ 1,329 $ 20,935 As of December 31, 2021 (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 $ 2,591 $ 1,253 $ 1,545 $ 7,272 $ — $ — $ — $ — $ — $ — $ — $ 12,661 CRE owner occupied — — — — — — — — — — — — Multifamily — — — — 4,458 — — — — — — 4,458 Farmland — — — — — 1,027 — — — — — 1,027 Total commercial real estate loans 2,591 1,253 1,545 7,272 4,458 1,027 — — — — — 18,146 Consumer: SFR 1-4 1st DT liens — — — — — — 3,589 — — — — 3,589 SFR HELOCs and junior liens — — — — — — 1,649 1,636 — — — 3,285 Other — — — 43 — — — — 5 — 5 53 Total consumer loans — — — 43 — — 5,238 1,636 5 — 5 6,927 Commercial and industrial — — — — — — — — — 2,162 112 2,274 Construction — — — — — — 15 — — — — 15 Agriculture production — — — — — — — — — — — — Leases — — — — — — — — — — Total $ 2,591 $ 1,253 $ 1,545 $ 7,315 $ 4,458 $ 1,027 $ 5,253 $ 1,636 $ 5 $ 2,162 $ 117 $ 27,362
Troubled Debt Restructurings	The following tables show certain information regarding Troubled Debt Restructurings that occurred during the periods indicated: Modifications classified as TDRs can include one or a combination of the following: rate modifications, term extensions, interest only modifications, either temporary or long-term, payment modifications, and collateral substitutions/additions. TDR information for the year ended December 31, 2022 (dollars in thousands) Number Pre-mod Post-mod Financial Number that Recorded Financial impact Commercial real estate: CRE non-owner occupied — $ — $ — $ — — $ — $ — CRE owner occupied 1 — 130 — — — — Multifamily — — — — — — — Farmland 3 1,228 1,440 — — — — Total commercial real estate loans 4 1,228 1,570 — — — — Consumer: SFR 1-4 1st DT liens — — — — — — — SFR HELOCs and junior liens — — — — 2 146 — Other — — — — — — — Total consumer loans — — — — 2 146 — Commercial and industrial 1 39 39 — 1 22 — Construction — — — — — — — Agriculture production 4 7,210 7,210 — — — — Leases — — — — — — — Total 9 $ 8,477 $ 8,819 $ — 3 $ 168 $ — TDR information for the year ended December 31, 2021 (dollars in thousands) Number Pre-mod Post-mod Financial Number that Recorded Financial impact Commercial real estate: CRE non-owner occupied 5 $ 4,966 $ 4,956 $ 1,020 — $ — $ — CRE owner occupied 1 740 742 742 — — — Multifamily — — — — — — — Farmland 2 701 703 50 3 847 — Total commercial real estate loans 8 6,407 6,401 1,812 3 847 — Consumer: SFR 1-4 1st DT liens — — — — — — — SFR HELOCs and junior liens 1 200 247 — — — — Other — — — — — — — Total consumer loans 1 200 247 — — — — Commercial and industrial 7 2,476 2,468 709 2 260 (5) Construction — — — — — — — Agriculture production — — — — — — — Leases — — — — — — — Total 16 $ 9,083 $ 9,116 $ 2,521 5 $ 1,107 $ (5) TDR information for the year ended December 31, 2020 (in thousands) Number Pre-mod Post-mod Financial Number that Recorded Financial impact Commercial real estate: CRE non-owner occupied 1 $ 319 $ 314 $ 314 1 $ 141 $ — CRE owner occupied 4 1,847 1,877 67 1 950 — Multifamily — — — — — — — Farmland 5 1,566 1,636 — 1 451 — Total commercial real estate loans 10 3,732 3,827 381 3 1,542 — Consumer: SFR 1-4 1st DT liens — — — — 3 1,180 — SFR HELOCs and junior liens 2 172 169 — 2 140 (90) Other — — — — — — — Total consumer loans 2 172 169 — 5 1,320 (90) Commercial and industrial 6 2,106 2,078 90 — — — Construction — — — — — — — Agriculture production — — — — — — — Leases — — — — — — — Total 18 $ 6,010 $ 6,074 $ 471 8 $ 2,862 $ (90)

Real Estate Owned (Tables)

Real Estate Owned (Tables)	12 Months Ended
	Dec. 31, 2022
Repossessed Assets [Abstract]
Summary of Activity in Balance of Real Estate Owned	A summary of the activity in the balance of real estate owned follows: Year ended December 31, (in thousands) 2022 2021 Beginning balance, net $ 2,594 $ 2,844 Additions/transfers from loans 1,349 1,052 Dispositions/sales (707) (1,458) Valuation adjustments 203 156 Ending balance, net $ 3,439 $ 2,594 Ending valuation allowance $ (113) $ (9) Ending number of foreclosed assets 9 6 Proceeds from sale of real estate owned $ 873 $ 1,526 Gain on sale of real estate owned $ 166 $ 233

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Summary of Premises and Equipment	As of December 31, (in thousands) 2022 2021 Land and land improvements $ 25,899 $ 29,002 Buildings 64,018 64,382 Furniture and equipment 42,850 42,305 132,767 135,689 Less: Accumulated depreciation (61,657) (58,401) 71,110 77,288 Construction in progress 1,217 1,399 Total premises and equipment $ 72,327 $ 78,687

Cash Value of Life Insurance (T

Cash Value of Life Insurance (Tables)	12 Months Ended
	Dec. 31, 2022
Cash Value of Life Insurance [Abstract]
Summary of Activity in Balance of Cash Value of Life Insurance	A summary of the activity in the balance of cash value of life insurance follows: Year ended December 31, (in thousands) 2022 2021 Beginning balance $ 117,857 $ 118,870 Acquired policies from business combination 13,609 — Increase in cash value of life insurance 2,858 2,775 Gain on death benefit 309 702 Insurance proceeds receivable reclassified to other assets (891) (4,490) Ending balance $ 133,742 $ 117,857 End of period death benefit $ 223,427 $ 193,318 Number of policies owned 216 176 Insurance companies used 14 14 Current and former employees and directors covered 79 59

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Goodwill Intangible	The following table summarizes the Company’s goodwill intangible as of the dates indicated: (in thousands) December 31, Additions Reductions December 31, Goodwill $ 304,442 $ 83,570 $ — $ 220,872
Summary of Core Deposit Intangibles	The following table summarizes the Company’s core deposit intangibles (“CDI”) as of the dates indicated: (in thousands) December 31, December 31, Core deposit intangibles, gross $ 36,265 $ 37,725 Fully amortized portion (8,074) (1,460) Acquisition of VRB 10,635 — Core deposit intangibles, gross ending balance 38,826 36,265 Accumulated amortization, gross (23,896) (19,891) Fully amortized portion 8,074 1,460 Amortization expense (6,334) (5,465) Accumulated amortization, gross ending balance (22,156) (23,896) Core deposit intangible, net $ 16,670 $ 12,369
Remaining Estimated Core Deposit Intangible Amortization	The following table summarizes the Company’s estimated core deposit intangible amortization (dollars in thousands): Years Ended Estimated CDI Amortization 2023 $ 6,118 2024 4,120 2025 1,961 2026 1,527 2027 1,008 Thereafter 1,936 $ 16,670

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	12 Months Ended
	Dec. 31, 2022
Mortgage Servicing Right [Abstract]
Fair Value of Mortgage Servicing Rights	The following tables summarize the activity in, and the main assumptions used to determine the fair value of mortgage servicing rights for the periods indicated (dollars in thousands): (in thousands) Year ended December 31, 2022 2021 2020 Balance at beginning of period $ 5,874 $ 5,092 $ 6,200 Additions 537 1,654 1,526 Change in fair value 301 (872) (2,634) Balance at end of period $ 6,712 $ 5,874 $ 5,092 Contractually specified servicing fees, late fees and ancillary fees earned $ 1,887 $ 1,881 $ 1,855 Balance of loans serviced at: Beginning of period $ 770,299 $ 779,530 $ 767,662 End of period $ 739,919 $ 770,299 $ 779,530 Period end: Weighted-average prepayment speed (CPR) 127.0 % 208.0 % 294.0 % Weighted-average expected life (years) 7.6 5.7 4.5 Weighted-average discount rate 12.0 % 12.0 % 12.0 %

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2022
Leases [Abstract]
Components of Lease Expense and Cash Flow Information Related to Leases	The following table presents the components of lease expense for the periods indicated: Year ended December 31, (in thousands) 2022 2021 Operating lease cost $ 5,725 $ 5,201 Short-term lease cost 283 241 Variable lease cost 26 11 Sublease income — (24) Total lease cost $ 6,034 $ 5,429 The following table presents supplemental cash flow information related to leases as of the periods ended: Year ended December 31, (in thousands) 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases $ 5,904 $ 4,964 ROUA obtained in exchange for operating lease liabilities $ 6,149 $ 2,883
Weighted Average Operating Lease Term and Discount Rate	The following table presents the weighted average operating lease term and discount rate as of the periods ended: Year ended December 31, 2022 2021 Weighted-average remaining lease term 8.3 years 9.3 years Weighted-average discount rate 3.0 % 2.9 %
Expected Future Operating Lease Payments	At December 31, 2022, future expected operating lease payments are as follows (in thousands): Periods ending December 31, 2023 $ 5,522 2024 5,169 2025 4,589 2026 4,105 2027 3,400 Thereafter 10,477 33,262 Discount for present value of expected cash flows (4,258) Lease liability at December 31, 2022 $ 29,004

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2022
Deposits [Abstract]
Summary of Balances of Deposits	A summary of the balances of deposits follows: (in thousands) December 31, 2022 2021 Noninterest-bearing demand $ 3,502,095 $ 2,979,882 Interest-bearing demand 1,718,541 1,568,682 Savings 2,884,378 2,520,959 Time certificates, $250,000 and over 46,350 44,652 Other time certificates 177,649 252,984 Total deposits $ 8,329,013 $ 7,367,159
Schedule of Maturities of Time Deposits	At December 31, 2022, the scheduled maturities of time deposits were as follows (in thousands): Scheduled 2023 $ 164,107 2024 27,881 2025 22,598 2026 7,257 2027 2,156 Thereafter — Total $ 223,999

Other Borrowings (Tables)

Other Borrowings (Tables)	12 Months Ended
	Dec. 31, 2022
Debt Disclosure [Abstract]
Summary of Balances of Other Borrowings	A summary of the balances of other borrowings follows: December 31, 2022 2021 (in thousands) Overnight borrowing at FHLB, fixed rate, as of December 31, 2022 of 4.65%, payable on January 3, 2023 $ 216,700 $ — Other collateralized borrowings, fixed rate, as of December 31, 2022 and 2020 of 0.05%, payable on January 3, 2023 and January 3, 2022, respectively 47,905 50,087 Total other borrowings $ 264,605 $ 50,087

Junior Subordinated Debt (Table

Junior Subordinated Debt (Tables)	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Summary of Terms and Recorded Balance of Subordinated Debenture	The following table summarizes the terms and recorded balance of each subordinated debenture as of the date indicated (dollars in thousands): Coupon Rate As of December 31, 2022 December 31, 2021 Subordinated Debt Series Maturity Face Current Recorded Recorded TriCo Cap Trust I 10/7/2033 $ 20,619 3.05 % 7.13 % $ 20,619 $ 20,619 TriCo Cap Trust II 7/23/2034 20,619 2.55 % 6.87 % 20,619 20,619 North Valley Trust II 4/24/2033 6,186 3.25 % 7.69 % 5,503 5,403 North Valley Trust III 7/23/2034 5,155 2.80 % 7.12 % 4,383 4,291 North Valley Trust IV 3/15/2036 10,310 1.33 % 6.10 % 7,393 7,147 VRB Subordinated - 6% 3/29/2029 16,000 Fixed 6.00 % 17,187 — VRB Subordinated - 5% 8/27/2035 20,000 Fixed 5.00 % 25,336 — $ 98,889 $ 101,040 $ 58,079

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2022
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: December 31, (in thousands) 2022 2021 Financial instruments whose amounts represent risk: Commitments to extend credit: Commercial loans $ 656,705 $ 409,950 Consumer loans 760,588 628,791 Real estate mortgage loans 458,896 333,764 Real estate construction loans 312,371 213,563 Standby letters of credit 26,599 21,871 Deposit account overdraft privilege 126,634 125,670

Stock Options and Other Equit_2

Stock Options and Other Equity-Based Incentive Instruments (Tables)	12 Months Ended
	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Stock Option Activity	Stock option activity is summarized in the following table for the dates indicated: Number of Option Price Weighted Outstanding at January 1, 2021 128,500 $14.54 to $23.21 $ 17.72 Options granted — — — Options exercised (49,675) $14.54 to $16.59 $ 15.25 Options forfeited — — — Outstanding at December 31, 2021 78,825 $15.34 to $23.21 $ 19.28 Options granted — — — Options exercised (63,325) $15.34 to $19.46 $ 18.79 Options forfeited — — — Outstanding at December 31, 2022 15,500 $19.46 to $23.21 $ 21.27
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 December 31, 2022: Currently Currently Not Total Number of options 15,500 — 15,500 Weighted average exercise price $ 21.27 $ — $ 21.27 Intrinsic value (in thousands) $ 461 $ — $ 461 Weighted average remaining contractual term (yrs.) 1 year n/a 1 year
Information about Options	The following table shows the total intrinsic value of options exercised, the total fair value of options vested, total compensation costs for options recognized in income, total tax benefit and excess tax benefits recognized in income related to compensation costs for options during the periods indicated: Year Ended December 31, 2022 2021 2020 Intrinsic value of options exercised $ 1,190,000 $ 1,476,000 $ 403,000 Fair value of options that vested — — — Total compensation costs for options recognized in expense — — — Total tax benefit recognized in income related to compensation costs for options — — — Excess tax benefit recognized in income — — —
Restricted Stock Unit (RSU) Activity	Restricted stock unit activity is summarized in the following table for the dates indicated: Service Condition Vesting RSUs Market Plus Service Condition Number Weighted Average Number of Weighted Average Outstanding at January 1, 2022 103,517 99,763 RSUs granted 84,278 $ 44.00 37,877 $ 40.74 Additional market plus service condition RSUs vested — 4,740 RSUs added through dividend credits 2,896 — RSUs released through vesting (50,076) (26,338) RSUs forfeited/expired (1,421) (1,561) Outstanding at December 31, 2022 139,194 114,481
Summary of Compensation Costs and Excess Tax Benefits for RSUs	The following table shows the compensation costs and excess tax benefits for RSUs recognized in income for the periods indicated: Year Ended December 31, 2022 2021 2020 Total compensation costs recognized in income Service condition vesting RSUs $ 2,883,000 $ 1,728,000 $ 1,390,000 Market plus service condition vesting RSUs 986,000 910,000 646,000 Excess tax benefit recognized in income Service condition vesting RSUs $ 1,079,000 $ 626,000 $ 372,000 Market plus service condition vesting RSUs 355,000 226,000 194,000

Non-interest Income and Expen_2

Non-interest Income and Expense (Tables)	12 Months Ended
	Dec. 31, 2022
Other Income and Expenses [Abstract]
Components of Other Noninterest Income	The components of other non-interest income were as follows: Year Ended December 31, (in thousands) 2022 2021 2020 ATM and interchange fees $ 26,767 $ 25,356 $ 21,660 Service charges on deposit accounts 16,536 14,013 13,944 Other service fees 4,274 3,570 3,156 Mortgage banking service fees 1,887 1,881 1,855 Change in value of mortgage loan servicing rights 301 (872) (2,634) Total service charges and fees 49,765 43,948 37,981 Asset management and commission income 3,986 3,668 2,989 Increase in cash value of life insurance 2,858 2,775 2,949 Gain on sale of loans 2,342 9,580 9,122 Lease brokerage income 820 746 668 Sale of customer checks 1,167 459 414 Gain on sale of investment securities — — 7 Gain (loss) on marketable equity securities (340) (86) 64 Other 2,448 2,574 1,000 Total other noninterest income 13,281 19,716 17,213 Total noninterest income $ 63,046 $ 63,664 $ 55,194
Components of Noninterest Expense	The components of noninterest expense were as follows: Year Ended December 31, (in thousands) 2022 2021 2020 Base salaries, net of deferred loan origination costs $ 84,861 $ 69,844 $ 70,164 Incentive compensation 17,908 14,957 10,022 Benefits and other compensation costs 27,083 21,550 31,935 Total salaries and benefits expense 129,852 106,351 112,121 Occupancy 15,493 14,910 14,528 Data processing and software 14,660 13,985 13,504 Equipment 5,733 5,358 5,704 ATM and POS network charges 6,984 6,040 5,433 Merger and acquisition expense 6,253 1,523 — Advertising 3,694 2,899 2,827 Professional fees 4,392 3,657 3,222 Intangible amortization 6,334 5,464 5,724 Telecommunications 2,298 2,253 2,601 Regulatory assessments and insurance 3,142 2,581 1,594 Courier service 2,013 1,214 1,414 Operational losses 1,000 964 1,168 Postage 1,147 710 1,068 Gain on sale or acquisition of foreclosed assets (481) (233) (235) (Gain) loss on disposal of fixed assets (1,070) (439) 67 Other miscellaneous expense 15,201 11,038 12,018 Total other noninterest expense 86,793 71,924 70,637 Total noninterest expense $ 216,645 $ 178,275 $ 182,758

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Components of Consolidated Income Tax Expense	The components of consolidated income tax expense are as follows (in thousands): Year Ended December 31, 2022 2021 2020 Current tax expense Federal $ 34,155 $ 28,763 $ 22,104 State 22,355 18,221 14,586 $ 56,510 46,984 36,690 Deferred tax expense Federal (5,224) (872) (9,500) State (2,798) (64) (4,654) (8,022) (936) (14,154) Total tax expense $ 48,488 $ 46,048 $ 22,536
Schedule of Components of Investments in Qualified Affordable Housing Projects	The Company recognized, as components of tax expense, tax credits and other tax benefits, and amortization expense relating to our investments in Qualified Affordable Housing Projects as follows for the periods indicated (in thousands): Year Ended December 31, 2022 2021 2020 Tax credits and other tax benefits – decrease in tax expense $ (6,370) $ (4,224) $ (4,200) Amortization – increase in tax expense $ 6,178 $ 3,604 $ 3,581
Reconciliation of Effective Tax Rate and Statutory Federal Income Tax Rate	The effective tax rate and the statutory federal income tax rate are reconciled as follows: Year Ended December 31, (in thousands) 2022 2021 2020 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % State income taxes, net of federal tax benefit 7.9 7.9 7.7 Tax-exempt interest on municipal obligations (0.7) (0.5) (0.9) Tax-exempt life insurance related income (0.4) (0.5) (0.8) Low income housing tax credits (3.7) (2.6) (4.8) Low income housing tax credit amortization 3.6 2.2 4.1 Equity compensation (0.2) (0.1) 0.4 Non-deductible merger expenses 0.1 0.1 — Other 0.3 0.6 (0.9) Effective Tax Rate 27.9 % 28.1 % 25.8 %
Company's Net Deferred Tax Asset Recorded in Other Assets	The temporary differences, tax effected, which give rise to the Company’s net deferred tax asset recorded in other assets are as follows as of December 31 for the years indicated (in thousands): December 31, 2022 2021 Deferred tax assets: Allowance for losses and reserve for unfunded commitments $ 32,519 $ 26,361 Deferred compensation 1,696 1,758 Other accrued expenses 2,720 1,994 Additional unfunded status of the supplemental retirement plans 16,036 13,693 Operating lease liability 8,575 7,769 State taxes 3,649 3,251 Share based compensation 1,132 952 Nonaccrual interest 643 937 Acquisition cost basis 14,640 506 Unrealized loss on securities 85,897 116 Tax credits 852 513 Net operating loss carryforwards 2,098 1,131 Other 120 813 Total deferred tax assets 170,577 59,794 Deferred tax liabilities: Securities income (777) (762) Depreciation (8,270) (6,198) Right of use asset (7,941) (7,588) Funded pension liability (4,110) (709) Securities accretion (1,265) (846) Mortgage servicing rights valuation (1,976) (1,726) Core deposit intangible (4,778) (3,248) Junior subordinated debt (1,293) (1,422) Prepaid expenses and other (991) (488) Total deferred tax liability (31,401) (22,987) Net deferred tax asset $ 139,176 $ 36,807

Earnings per Share (Tables)

Earnings per Share (Tables)	12 Months Ended
	Dec. 31, 2022
Earnings Per Share [Abstract]
Computation of Earnings Per Share	Earnings per share have been computed based on the following: Year Ended December 31, (in thousands) 2022 2021 2020 Net income $ 125,419 $ 117,655 $ 64,814 Average number of common shares outstanding 32,584 29,721 29,917 Effect of dilutive stock options and restricted stock 137 161 111 Average number of common shares outstanding used to calculate diluted earnings per share 32,721 29,882 30,028 Options excluded from diluted earnings per share because the effect of these options was antidilutive — — —

Comprehensive Income (Loss) (Ta

Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Components of Other Comprehensive Income (Loss) and Related Tax Effects	The components of other comprehensive income and related tax effects are as follows: Year Ended December 31, (in thousands) 2022 2021 2020 Unrealized holding gains (losses) on available for sale securities before reclassifications $ (290,157) $ (19,575) $ 15,803 Amounts reclassified out of accumulated other comprehensive income: Realized gains on debt securities — — (7) Total amounts reclassified out of accumulated other comprehensive income — — (7) Unrealized holding gains (losses) on available for sale securities after reclassifications (290,157) (19,575) 15,796 Tax effect 85,781 5,787 (4,670) Unrealized holding gains (losses) on available for sale securities, net of tax (204,376) (13,788) 11,126 Change in unfunded status of the supplemental retirement plans before reclassifications 11,522 3,497 645 Amounts reclassified out of accumulated other comprehensive income: Amortization of prior service cost (28) (58) (55) Amortization of actuarial losses 8 254 9,309 Total amounts reclassified out of accumulated other comprehensive income (20) 196 9,254 Change in unfunded status of the supplemental retirement plans after reclassifications 11,502 3,693 9,899 Tax effect (3,401) (1,091) (2,927) Change in unfunded status of the supplemental retirement plans, net of tax 8,101 2,602 6,972 Change in joint beneficiary agreement liability before reclassifications 1,389 (113) (596) Tax effect — — — Change in unfunded status of the supplemental retirement plans, net of tax 1,389 (113) (596) Total other comprehensive income (loss) $ (194,886) $ (11,299) $ 17,502
Components of Accumulated Other Comprehensive Income (Loss)	The components of accumulated other comprehensive income (loss), included in shareholders’ equity, are as follows: Year Ended December 31, (in thousands) 2022 2021 Net unrealized loss on available for sale securities $ (290,549) $ (392) Tax effect 85,897 116 Unrealized holding loss on available for sale securities, net of tax (204,652) (276) Unfunded status of the supplemental retirement plans 13,901 2,399 Tax effect (4,110) (709) Unfunded status of the supplemental retirement plans, net of tax 9,791 1,690 Joint beneficiary agreement liability, net of tax 956 (433) Accumulated other comprehensive income (loss) $ (193,905) $ 981

Retirement Plans (Tables)

Retirement Plans (Tables)	12 Months Ended
	Dec. 31, 2022
Retirement Benefits [Abstract]
Summary of 401(k) Contribution Plan	The Company recorded salaries & benefits expense attributable to the 401(k) Plan matching contributions and 401(k) Plan matching contributions for the years ended: Year Ended December 31, (in thousands) 2022 2021 2020 401(k) Plan benefits expense $ 1,541 $ 1,211 $ 1,139 401(k) Plan contributions made by the Company $ 1,214 $ 1,121 $ 202
Summary of ESOP Activities	Expenses related to the Company’s ESOP, included in benefits and other compensation costs under salaries and benefits expense, and contributions to the plan for the years ended were: Year Ended December 31, (in thousands) 2022 2021 2020 ESOP benefits expense $ 2,824 $ 1,888 $ 2,400 ESOP contributions made by the Company $ 3,535 $ 878 $ 1,951
Schedule of Deferred Compensation Earnings Credits Included in Noninterest Expense	Earnings credits on deferred balances included in non-interest expense are included in the following table: Year Ended December 31, (in thousands) 2022 2021 2020 Deferred compensation earnings credits included in non-interest expense $ 187 $ 176 $ 212
Schedule of Defined Benefit Pension Plans	Amounts recognized as a component of accumulated other comprehensive income (loss) as of year-end that have not been recognized as a component of the combined net period benefit cost of the Company’s defined benefit pension plans are presented in the following table. The Company expects to recognize approximately $455,000 of the net actuarial loss reported in the following table as of December 31, 2022 as a component of net periodic benefit cost during 2022. December 31, (in thousands) 2022 2021 Transition obligation $ — $ — Prior service cost — (28) Net actuarial (gain) / loss (13,901) (2,371) Amount included in accumulated other comprehensive income (loss) (13,901) (2,399) Deferred tax liability / (benefit) 4,109 709 Amount included in accumulated other comprehensive income (loss), net of tax $ (9,792) $ (1,690)
Information Pertaining to Activity in Supplemental Retirement Plans	Information pertaining to the activity in the supplemental retirement plans, using a measurement date of December 31, is as follows: December 31, (in thousands) 2022 2021 Change in benefit obligation: Benefit obligation at beginning of year $ (43,834) $ (46,197) Acquisition of obligations (3,310) — Service cost (1,624) (1,103) Interest cost (1,731) (1,518) Actuarial (loss)/gain 10,266 3,580 Plan amendments (2,141) — Benefits paid 2,033 1,404 Benefit obligation at end of year $ (40,341) $ (43,834) Change in plan assets: Fair value of plan assets at beginning of year $ — $ — Fair value of plan assets at end of year $ — $ — Funded status $ (40,341) $ (43,834) Unrecognized net obligation existing at January 1, 1986 — — Unrecognized net actuarial (loss)/gain (13,901) (2,453) Unrecognized prior service cost — (28) Accumulated other comprehensive loss 13,901 2,481 Accrued benefit cost $ (40,341) $ (43,834) Accumulated benefit obligation $ (40,340) $ (42,590)
Net Periodic Benefit Cost Recognized for Supplemental Retirement Plans	The following table sets forth the net periodic benefit cost recognized for the supplemental retirement plans: Year Ended December 31, (in thousands) 2022 2021 2020 Net pension cost included the following components: Service cost-benefits earned during the period $ 1,624 $ 1,103 $ 2,830 Interest cost on projected benefit obligation 1,731 1,518 1,224 Amortization of net obligation at transition — — 1 Amortization of prior service cost (28) (58) (55) Recognized net actuarial loss (86) 254 9,309 Amortization of loss/(gain) (114) — — Recognition of pension service cost to due amendment 2,141 — — Net periodic pension cost $ 5,268 $ 2,817 $ 13,309
Assumptions Used in Accounting for Plans	The following table sets forth assumptions used in accounting for the plans: Year Ended December 31, 2022 2021 2020 Discount rate used to calculate benefit obligation 5.23 % 2.74 % 2.40 % Discount rate used to calculate net periodic pension cost 2.74 % 2.40 % 2.82 % Average annual increase in executive compensation — % 3.25 % 3.25 % Average annual increase in director compensation — % — % — %
Expected Benefit Payments to Participants and Estimated Contributions to be Made by Company	The following table sets forth the expected benefit payments to participants and estimated contributions to be made by the Company under the supplemental retirement plans for the years indicated: (in thousands) Expected Benefit Estimated 2023 $ 1,914 $ 1,914 2024 3,017 3,017 2025 2,988 2,988 2026 3,076 3,076 2027 2,974 2,974 2028-2032 18,981 18,981

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2022
Related Party Transactions [Abstract]
Summary of Activity in Lending Transactions	The following table summarizes the activity in these loans for the periods indicated: (in thousands) Balance January 1, 2021 $ 6,833 Advances/new loans 2,000 Removed/payments (2,517) Balance December 31, 2021 6,316 Advances/new loans 11,960 Removed/payments (6,892) Balance December 31, 2022 $ 11,384

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	12 Months Ended
	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Recorded Amount of Assets and Liabilities Measured at Fair Value on Recurring Basis	The tables below presents the recorded amount of assets and liabilities measured at fair value on a recurring basis (in thousands): Fair value at December 31, 2022 Total Level 1 Level 2 Level 3 Marketable equity securities $ 2,598 $ 2,598 $ — $ — Debt securities available for sale: Obligations of U.S. government agencies 1,372,769 — 1,372,769 — Obligations of states and political subdivisions 293,205 — 293,205 — Corporate bonds 5,751 — 5,751 — Asset backed securities 439,767 — 439,767 — Non-agency collateralized mortgage obligations 340,946 — 340,946 — Loans held for sale 1,846 — 1,846 — Mortgage servicing rights 6,712 — — 6,712 Total assets measured at fair value $ 2,463,594 $ 2,598 $ 2,454,284 $ 6,712 Fair value at December 31, 2021 Total Level 1 Level 2 Level 3 Marketable equity securities $ 2,938 $ 2,938 $ — $ — Debt securities available for sale: Obligations of U.S. government agencies 1,257,389 — 1,257,389 — Obligations of states and political subdivisions 192,244 — 192,244 — Corporate bonds 6,756 — 6,756 — Asset backed securities 409,552 — 409,552 — Non-agency collateralized mortgage obligation 341,997 — 341,997 — Loans held for sale 3,466 — 3,466 — Mortgage servicing rights 5,874 — — 5,874 Total assets measured at fair value $ 2,220,216 $ 2,938 $ 2,211,404 $ 5,874
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 years ended December 31, 2022, 2021, and 2020. Had there been any transfer into or out of Level 3 during 2022, 2021, or 2020, 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): Year ended December 31, Beginning Transfers Change Issuances Ending 2022: Mortgage servicing rights $ 5,874 — $ 301 $ 537 $ 6,712 2021: Mortgage servicing rights $ 5,092 — $ (872) $ 1,654 $ 5,874 2020: Mortgage servicing rights $ 6,200 — $ (2,634) $ 1,526 $ 5,092
Quantitative Information about Recurring Level 3 Fair Value Measurements	The following table present quantitative information about recurring Level 3 fair value measurements at December 31, 2022 and 2021: December 31, 2022 Fair Value Valuation Unobservable Range, Mortgage Servicing Rights $6,712 Discounted Constant 116%-226%, 127% Discount rate 10%-14%, 12% December 31, 2021 Mortgage Servicing Rights $5,874 Discounted Constant 187%-264%, 208% Discount rate 10%-14%, 12%
Assets and Liabilities Measured at Fair Value on Nonrecurring Basis	The tables below present the recorded amount of 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. The gains (losses) represent the amounts recorded during the period regardless of whether the asset is still held at fair value at period end (in thousands): December 31, 2022 Total Level 1 Level 2 Level 3 Total Gains Fair value: Individually evaluated loans $ 5,719 — — $ 5,719 $ (2,283) Real estate owned 311 — — 311 481 Total assets measured at fair value $ 6,030 — — $ 6,030 $ (1,802) December 31, 2021 Total Level 1 Level 2 Level 3 Total Gains Fair value: Individually evaluated loans $ 3,683 — — $ 3,683 $ (1,105)
Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on Nonrecurring Basis	The following tables present quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at December 31, 2022 and 2021: December 31, 2022 Fair Value Valuation Technique Unobservable Inputs Range, Individually evaluated loans $ 5,719 Sales comparison Adjustment for differences between Not meaningful; Real estate owned (Residential) $ 311 Sales comparison Adjustment for differences between Not meaningful; December 31, 2021 Fair Value Valuation Technique Unobservable Inputs Range, Individually evaluated loans $ 3,683 Sales comparison Adjustment for differences between Not meaningful;
Estimated Fair Values of Financial Instruments that are Reported at Amortized Cost in Consolidated Balance Sheets	The estimated fair values of financial instruments that are reported at amortized cost in the Corporation’s consolidated balance sheets, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value, were as follows (in thousands): December 31, 2022 December 31, 2021 Carrying Fair Carrying Fair Financial assets: Level 1 inputs: Cash and due from banks $ 96,323 $ 96,323 $ 57,032 $ 57,032 Cash at Federal Reserve and other banks 10,907 10,907 711,389 711,389 Level 2 inputs: Securities held to maturity 160,983 149,938 199,759 208,140 Restricted equity securities 17,250 n/a 17,250 N/A Level 3 inputs: Loans, net 6,344,767 6,153,155 4,831,248 4,880,044 Financial liabilities: Level 2 inputs: Deposits 8,329,013 8,321,517 7,367,159 7,366,422 Other borrowings 264,605 264,605 50,087 50,087 Level 3 inputs: Junior subordinated debt 101,040 92,613 58,079 57,173 Contract Fair Contract Fair Off-balance sheet: Level 3 inputs: Commitments (1) $ 2,188,560 $ 21,886 $ 1,586,068 $ 15,861 Standby letters of credit (1) 26,599 266 21,871 219 Overdraft privilege commitments (1) 126,634 1,266 125,670 1,257

TriCo Bancshares Condensed Fi_2

TriCo Bancshares Condensed Financial Statements (Parent Only) (Tables)	12 Months Ended
	Dec. 31, 2022
Condensed Financial Information Disclosure [Abstract]
Condensed Balance Sheets	Condensed Balance Sheets December 31, December 31, (In thousands) Assets Cash and cash equivalents $ 7,987 $ 4,950 Investment in Tri Counties Bank 1,138,429 1,047,577 Other assets 1,818 6,073 Total assets $ 1,148,234 $ 1,058,600 Liabilities and shareholders’ equity Other liabilities $ 778 $ 337 Junior subordinated debt 101,040 58,079 Total liabilities 101,818 58,416 Shareholders’ equity: Preferred stock, no par value: 1,000,000 shares authorized, zero issued and outstanding at December 31, 2020 and 2019 — — Common stock, no par value: authorized 50,000,000 shares; issued and outstanding 33,331,513 and 29,730,424 shares at December 31, 2022 and 2021, respectively 697,448 532,244 Retained earnings 542,873 466,959 Accumulated other comprehensive income (loss), net (193,905) 981 Total shareholders’ equity 1,046,416 1,000,184 Total liabilities and shareholders’ equity $ 1,148,234 $ 1,058,600
Condensed Statements of Income	Condensed Statements of Income Year Ended December 31, 2022 2021 2020 (In thousands) Net interest expense $ (4,385) $ (2,128) $ (2,555) Administration expense (816) (985) (932) Loss before equity in net income of Tri Counties Bank (5,201) (3,113) (3,487) Equity in net income of Tri Counties Bank: Distributed 64,188 31,571 63,419 Undistributed 64,896 88,289 3,851 Income tax benefit 1,536 908 1,031 Net income $ 125,419 $ 117,655 $ 64,814
Condensed Statements of Comprehensive Income	Condensed Statements of Comprehensive Income (Loss) Year Ended December 31, 2022 2021 2020 (In thousands) Net income $ 125,419 $ 117,655 $ 64,814 Other comprehensive income (loss), net of tax: Increase (decrease) in unrealized gains on available for sale securities arising during the period (204,376) (13,788) 11,126 Change in minimum pension liability 8,101 2,602 6,972 Change in joint beneficiary agreement liability 1,389 (113) (596) Other comprehensive income (loss) (194,886) (11,299) 17,502 Comprehensive income (loss) $ (69,467) $ 106,356 $ 82,316
Condensed Statements of Cash Flows	Condensed Statements of Cash Flows Year Ended December 31, 2022 2021 2020 (In thousands) Operating activities: Net income $ 125,419 $ 117,655 $ 64,814 Adjustments to reconcile net income to net cash provided by operating activities: Undistributed equity in earnings of Tri Counties Bank (64,896) (88,289) (3,851) Equity compensation vesting expense 3,869 2,638 2,036 Net change in other assets and liabilities (3,834) (6,427) (1,885) Net cash provided by operating activities 60,558 25,577 61,114 Investing activities: Sales or maturities of investments 4,234 — — Financing activities: Issuance of common stock through option exercise 1,190 144 198 Repurchase of common stock (27,148) (4,344) (26,720) Cash dividends paid — common (35,797) (29,724) (26,303) Net cash used for financing activities (61,755) (33,924) (52,825) Net change in cash and cash equivalents 3,037 (8,347) 8,289 Cash and cash equivalents at beginning of year 4,950 13,297 5,008 Cash and cash equivalents at end of year $ 7,987 $ 4,950 $ 13,297

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2022
Regulated Operations [Abstract]
Actual and Required Capital Ratios of Bank	Actual Required for Capital Adequacy Purposes Required to be (in thousands) Amount Ratio Amount Ratio Amount Ratio As of December 31, 2022: Total Capital (to Risk Weighted Assets): Consolidated $ 1,115,257 14.19 % $ 825,234 10.50 % N/A N/A Tri Counties Bank $ 1,107,941 14.10 % $ 825,039 10.50 % $ 785,751 10.00 % Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 974,325 12.40 % $ 668,047 8.50 % N/A N/A Tri Counties Bank $ 1,009,577 12.85 % $ 667,888 8.50 % $ 628,601 8.00 % Common equity Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 917,565 11.67 % $ 550,156 7.00 % N/A N/A Tri Counties Bank $ 1,009,577 12.85 % $ 550,026 7.00 % $ 510,738 6.50 % Tier 1 Capital (to Average Assets): Consolidated $ 974,325 10.14 % $ 384,337 4.00 % N/A N/A Tri Counties Bank $ 1,009,577 10.51 % $ 384,146 4.00 % $ 480,183 5.00 % Actual Required for Capital Adequacy Purposes Required to be (in thousands) Amount Ratio Amount Ratio Amount Ratio As of December 31, 2021: Total Capital (to Risk Weighted Assets): Consolidated $ 893,294 15.42 % $ 608,258 10.50 % N/A N/A Tri Counties Bank $ 884,255 15.28 % $ 607,610 10.50 % $ 578,676 10.00 % Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 820,654 14.17 % $ 492,399 8.50 % N/A N/A Tri Counties Bank $ 811,713 14.03 % $ 491,875 8.50 % $ 462,941 8.00 % Common equity Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 764,319 13.19 % $ 405,505 7.00 % N/A N/A Tri Counties Bank $ 811,713 14.03 % $ 405,073 7.00 % $ 376,140 6.50 % Tier 1 Capital (to Average Assets): Consolidated $ 820,654 9.88 % $ 332,205 4.00 % N/A N/A Tri Counties Bank $ 811,713 9.77 % $ 332,196 4.00 % $ 415,245 5.00 %

Summary of Quarterly Results _2

Summary of Quarterly Results of Operations (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2022
Quarterly Financial Information Disclosure [Abstract]
Results of Operations	The following tables set forth the results of operations for the four quarters of 2022 and 2021, and is unaudited; however, in the opinion of Management, it reflects all adjustments (which include only normal recurring adjustments) necessary to present fairly the summarized results for such periods. 2022 Quarters Ended (dollars in thousands, except per share data) December 31, September 30, June 30, March 31, Interest and dividend income: Loans: Discount accretion $ 1,751 $ 714 $ 1,677 $ 1,323 All other loan interest income 80,005 75,242 68,241 56,422 Total loan interest income 81,756 75,956 69,918 57,745 Debt securities, dividends and interest bearing cash at banks 21,233 20,410 17,037 11,450 Total interest income 102,989 96,366 86,955 69,195 Interest expense 4,089 2,260 1,909 1,271 Net interest income 98,900 94,106 85,046 67,924 Provision for credit losses 4,245 3,795 2,100 8,330 Net interest income after provision for credit losses 94,655 90,311 82,946 59,594 Noninterest income 15,880 15,640 16,430 15,096 Noninterest expense 59,469 54,465 56,264 46,447 Income before income taxes 51,066 51,486 43,112 28,243 Income tax expense 14,723 14,148 11,748 7,869 Net income $ 36,343 $ 37,338 $ 31,364 $ 20,374 Per common share: Net income (diluted) $ 1.09 $ 1.12 $ 0.93 $ 0.67 Dividends $ 0.30 $ 0.30 $ 0.25 $ 0.25 2021 Quarters Ended (dollars in thousands, except per share data) December 31, September 30, June 30, March 31, Interest and dividend income: Loans: Discount accretion $ 1,780 $ 2,034 $ 2,566 $ 1,712 All other loan interest income 59,024 58,691 57,738 58,724 Total loan interest income 60,804 60,725 60,304 60,436 Debt securities, dividends and interest bearing cash at banks 10,220 8,903 8,175 7,480 Total interest income 71,024 69,628 68,479 67,916 Interest expense 1,241 1,395 1,396 1,476 Net interest income 69,783 68,233 67,083 66,440 Provision for (benefit from reversal of) credit losses 980 (1,435) (260) (6,060) Net interest income after provision for (benefit from) credit losses 68,803 69,668 67,343 72,500 Noninterest income 16,502 15,095 15,957 16,110 Noninterest expense 46,679 45,807 44,171 41,618 Income before income taxes 38,626 38,956 39,129 46,992 Income tax expense 10,404 11,534 10,767 13,343 Net income $ 28,222 $ 27,422 $ 28,362 $ 33,649 Per common share: Net income (diluted) $ 0.94 $ 0.92 $ 0.95 $ 1.13 Dividends $ 0.25 $ 0.25 $ 0.25 $ 0.25

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2022 USD ($) trust office segment county	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Significant Of Accounting Policies [Line Items]
Number of subsidiary business trusts (in trusts) | trust	5
Number of loan production offices (in offices) | office	2
Company's investments in the trusts	$ 1,757,000
Number of business segments (in segments) | segment	1
Net unrealized gains (losses)	$ 35,000	$ (718,000)
Accrued interest write off	0	0	$ 0
Credit losses recognized	0	0	0
Credit loss	$ 0	$ 0	$ 0
Minimum
Significant Of Accounting Policies [Line Items]
Loans held-for-sale, term	5 years
Regulatory liability, amortization period	15 years
Maximum
Significant Of Accounting Policies [Line Items]
Loans held-for-sale, term	10 years
Regulatory liability, amortization period	30 years
Furniture and equipment | Minimum
Significant Of Accounting Policies [Line Items]
Estimated useful lives of the related assets or lease terms	3 years
Furniture and equipment | Maximum
Significant Of Accounting Policies [Line Items]
Estimated useful lives of the related assets or lease terms	10 years
Land improvements and buildings | Minimum
Significant Of Accounting Policies [Line Items]
Estimated useful lives of the related assets or lease terms	15 years
Land improvements and buildings | Maximum
Significant Of Accounting Policies [Line Items]
Estimated useful lives of the related assets or lease terms	40 years
North Valley Bancorp
Significant Of Accounting Policies [Line Items]
Number of subsidiary business trusts (in trusts) | trust	3
California
Significant Of Accounting Policies [Line Items]
Number of counties (in counties) | county	32

Business Combinations - Additio

Business Combinations - Additional Information (Detail) - Valley Republic Bancorp - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2022	Mar. 25, 2022
Business Acquisition [Line Items]
Total consideration value	$ 174,016	$ 174,016
Share price (in dollars per share)		$ 42.48
Issue of common stock (in shares)		4,105,518
Settlement of stock option awards	$ 431	$ 431

Business Combinations - Schedul

Business Combinations - Schedule of Fair Value of Consideration Transferred, Identifiable Net Assets Acquired and Resulting Goodwill (Detail) - USD ($) $ in Thousands			9 Months Ended
	Dec. 31, 2022	Mar. 25, 2022	Dec. 31, 2022	Dec. 31, 2021
Liabilities assumed:
Goodwill recognized	$ 304,442		$ 304,442	$ 220,872
Valley Republic Bancorp
Business Combination, Consideration Transferred [Abstract]
Fair value of shares issued	173,585	$ 173,585
Fair value of shares issued, Adjustments			0
Cash consideration	431	431
Cash consideration, Adjustments			0
Total fair value of consideration transferred	174,016	174,016
Total fair value of consideration transferred, Adjustments			0
Assets acquired:
Cash and cash equivalents	427,314	427,314	427,314
Cash and cash equivalents, Adjustments			0
Securities available for sale	109,716	109,716	109,716
Securities available for sale, Adjustments			0
Loans and leases	771,353	771,353	771,353
Loans and leases, Adjustments			0
Premises and equipment	4,658	4,658	4,658
Premises and equipment, Adjustments			0
Cash value of life insurance	13,609	13,609	13,609
Cash value of life insurance, Adjustments			0
Core deposit intangible	10,635	10,635	10,635
Core deposit intangible, Adjustments			0
Other assets	29,744	26,244	29,744
Other assets, Adjustments			3,500
Total assets acquired	1,367,029	1,363,529	1,367,029
Total assets acquired, Adjustments			3,500
Liabilities assumed:
Deposits	(1,215,479)	(1,215,479)	(1,215,479)
Deposits, Adjustments			0
Subordinated debt	(47,236)	(47,236)	(47,236)
Subordinated Debt, Adjustments			0
SERP liability	(3,352)	(3,352)	(3,352)
SERP liability, Adjustments			0
Other liabilities	(10,516)	(10,516)	(10,516)
Other liabilities, Adjustments			0
Total liabilities assumed	(1,276,583)	(1,276,583)	(1,276,583)
Total liabilities assumed, Adjustments			0
Total net assets acquired	90,446	86,946	90,446
Total net assets acquired, Adjustments			0
Goodwill recognized	$ 83,570	$ 87,070	83,570
Goodwill recognized, Adjustments			$ (3,500)

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Estimated Fair Values of Investments Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Securities Available for Sale
Amortized Cost	$ 2,742,987	$ 2,208,330
Gross Unrealized Gains	421	16,413
Gross Unrealized Losses	(290,970)	(16,805)
Estimated Fair Value	2,452,438	2,207,938
Debt Securities Held to Maturity
Amortized Cost	160,983	199,759
Gross Unrealized Gains	15	8,381
Gross Unrealized Losses	(11,060)	0
Estimated Fair Value	149,938	208,140
Obligations of U.S. government agencies
Debt Securities Available for Sale
Amortized Cost	1,568,408	1,260,226
Gross Unrealized Gains	3	8,193
Gross Unrealized Losses	(195,642)	(11,030)
Estimated Fair Value	1,372,769	1,257,389
Debt Securities Held to Maturity
Amortized Cost	154,830	192,068
Gross Unrealized Gains	2	8,131
Gross Unrealized Losses	(11,013)	0
Estimated Fair Value	143,819	200,199
Obligations of states and political subdivisions
Debt Securities Available for Sale
Amortized Cost	332,625	187,197
Gross Unrealized Gains	401	5,832
Gross Unrealized Losses	(39,821)	(785)
Estimated Fair Value	293,205	192,244
Debt Securities Held to Maturity
Amortized Cost	6,153	7,691
Gross Unrealized Gains	13	250
Gross Unrealized Losses	(47)	0
Estimated Fair Value	6,119	7,941
Corporate bonds
Debt Securities Available for Sale
Amortized Cost	6,164	6,722
Gross Unrealized Gains	0	34
Gross Unrealized Losses	(413)	0
Estimated Fair Value	5,751	6,756
Asset backed securities
Debt Securities Available for Sale
Amortized Cost	454,943	408,329
Gross Unrealized Gains	17	2,354
Gross Unrealized Losses	(15,193)	(1,131)
Estimated Fair Value	439,767	409,552
Non-agency collateralized mortgage obligations
Debt Securities Available for Sale
Amortized Cost	380,847	345,856
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(39,901)	(3,859)
Estimated Fair Value	$ 340,946	$ 341,997

Investment Securities - Additio

Investment Securities - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2022 USD ($) investmentSecurity securityLoan	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Investment Securities [Line Items]
Credit loss	$ 0	$ 0	$ 0
Allowance for credit loss	0	0
Proceeds from sale of available for sale securities	0	0	229,000
Realized gain			$ 7,000
Securities pledged as collateral	595,779,000	$ 423,892,000
Residential real estate mortgage-backed securities	$ 1,533,255,000
Life of mortgage-backed securities	6 years 4 months 24 days
Obligations of U.S. government agencies
Investment Securities [Line Items]
Available for sale securities in unrealized loss position | investmentSecurity	172
Percentage of aggregate depreciation in unrealized losses	12.48%
Obligations of states and political subdivisions
Investment Securities [Line Items]
Available for sale securities in unrealized loss position | investmentSecurity	202
Percentage of aggregate depreciation in unrealized losses	13.16%
Corporate bonds
Investment Securities [Line Items]
Available for sale securities in unrealized loss position | securityLoan	6,000
Percentage of aggregate depreciation in unrealized losses	6.70%
Impairment losses recognized	$ 0
Allowance for credit loss	$ 0
Asset backed securities
Investment Securities [Line Items]
Available for sale securities in unrealized loss position | investmentSecurity	48
Percentage of aggregate depreciation in unrealized losses	3.36%
Non-agency collateralized mortgage obligations
Investment Securities [Line Items]
Available for sale securities in unrealized loss position | securityLoan	22
Percentage of aggregate depreciation in unrealized losses	10.88%
Impairment losses recognized	$ 0
Allowance for credit loss	$ 0

Investment Securities - Amort_2

Investment Securities - Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Amortized Cost
Due in one year	$ 57,685
Due after one year through five years	125,533
Due after five years through ten years	418,008
Due after ten years	2,141,761
Amortized Cost	2,742,987	$ 2,208,330
Estimated Fair Value
Due in one year	56,111
Due after one year through five years	120,116
Due after five years through ten years	395,462
Due after ten years	1,880,749
Totals	2,452,438	2,207,938
Amortized Cost
Due in one year	0
Due after one year through five years	3,730
Due after five years through ten years	14,721
Due after ten years	142,532
Amortized Cost	160,983	199,759
Estimated Fair Value
Due in one year	0
Due after one year through five years	3,616
Due after five years through ten years	13,998
Due after ten years	132,324
Totals	$ 149,938	$ 208,140

Investment Securities - Gross U

Investment Securities - Gross Unrealized Losses on Investment Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Securities Available for Sale
Less than 12 months, Fair Value	$ 1,218,843	$ 1,393,098
Less than 12 months, Unrealized Loss	(193,869)	(14,640)
12 months or more, Fair Value	1,185,676	153,834
12 months or more, Unrealized Loss	(97,101)	(2,165)
Total, Fair Value	2,404,519	1,546,932
Total, Unrealized Loss	(290,970)	(16,805)
Debt Securities Held to Maturity
Less than 12 months, Fair Value	0
Less than 12 Months, Unrealized Loss	0
12 months or more, Fair Value	148,107
12 months or more, Unrealized Loss	(11,060)
Total, Fair Value	148,107
Total, Unrealized Loss	(11,060)
Obligations of U.S. government agencies
Debt Securities Available for Sale
Less than 12 months, Fair Value	766,612	947,108
Less than 12 months, Unrealized Loss	(134,234)	(9,737)
12 months or more, Fair Value	605,615	44,086
12 months or more, Unrealized Loss	(61,408)	(1,293)
Total, Fair Value	1,372,227	991,194
Total, Unrealized Loss	(195,642)	(11,030)
Debt Securities Held to Maturity
Less than 12 months, Fair Value	0
Less than 12 Months, Unrealized Loss	0
12 months or more, Fair Value	143,577
12 months or more, Unrealized Loss	(11,013)
Total, Fair Value	143,577
Total, Unrealized Loss	(11,013)
Obligations of states and political subdivisions
Debt Securities Available for Sale
Less than 12 months, Fair Value	43,282	56,153
Less than 12 months, Unrealized Loss	(12,917)	(785)
12 months or more, Fair Value	219,532	0
12 months or more, Unrealized Loss	(26,904)	0
Total, Fair Value	262,814	56,153
Total, Unrealized Loss	(39,821)	(785)
Debt Securities Held to Maturity
Less than 12 months, Fair Value	0
Less than 12 Months, Unrealized Loss	0
12 months or more, Fair Value	4,530
12 months or more, Unrealized Loss	(47)
Total, Fair Value	4,530
Total, Unrealized Loss	(47)
Corporate bonds
Debt Securities Available for Sale
Less than 12 months, Fair Value	0
Less than 12 months, Unrealized Loss	0
12 months or more, Fair Value	5,751
12 months or more, Unrealized Loss	(413)
Total, Fair Value	5,751
Total, Unrealized Loss	(413)
Asset backed securities
Debt Securities Available for Sale
Less than 12 months, Fair Value	205,329	62,792
Less than 12 months, Unrealized Loss	(10,238)	(259)
12 months or more, Fair Value	231,703	109,748
12 months or more, Unrealized Loss	(4,955)	(872)
Total, Fair Value	437,032	172,540
Total, Unrealized Loss	(15,193)	(1,131)
Non-agency collateralized mortgage obligations
Debt Securities Available for Sale
Less than 12 months, Fair Value	203,620	327,045
Less than 12 months, Unrealized Loss	(36,480)	(3,859)
12 months or more, Fair Value	123,075	0
12 months or more, Unrealized Loss	(3,421)	0
Total, Fair Value	326,695	327,045
Total, Unrealized Loss	$ (39,901)	$ (3,859)

Investment Securities - Amort_3

Investment Securities - Amortized Cost of Debt Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
AAA/AA/A
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Securities held to maturity	$ 160,983	$ 199,759
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	154,830	192,068
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	6,153	7,691
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

Loans - Summary of Loan Balance

Loans - Summary of Loan Balances (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Total	$ 6,450,447	$ 4,916,624
Total principal balance of loans owed, net of charge-offs	6,496,210	4,946,653
Unamortized net deferred loan fees	(15,275)	(13,922)
Discounts to principal balance of loans owed, net of charge-offs	(30,488)	(16,107)
Allowance for credit losses	(105,680)	(85,376)	$ (91,847)	$ (30,616)
Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	4,359,083	3,306,054
Allowance for credit losses	(61,381)	(51,140)	(53,693)	(11,995)
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	1,240,743	1,071,551
Allowance for credit losses	(24,639)	(23,474)	(25,148)	(10,084)
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total	569,921	259,355
Allowance for credit losses	(13,597)	(3,862)	(4,252)	(4,867)
Construction
Loans and Leases Receivable Disclosure [Line Items]
Total	211,560	222,281
Allowance for credit losses	(5,142)	(5,667)	(7,540)	(3,388)
Agriculture production
Loans and Leases Receivable Disclosure [Line Items]
Total	61,414	50,811
Allowance for credit losses	(906)	(1,215)	(1,209)	(261)
Leases
Loans and Leases Receivable Disclosure [Line Items]
Total	7,726	6,572
Allowance for credit losses	(15)	(18)	(5)	(21)
CRE non-owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	2,149,725	1,603,141
Allowance for credit losses	(30,962)	(25,739)	(29,380)	(5,948)
CRE owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	984,807	706,307
Allowance for credit losses	(14,014)	(10,691)	(10,861)	(2,027)
Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	944,537	823,500
Allowance for credit losses	(13,132)	(12,395)	(11,472)	(3,352)
Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	280,014	173,106
Allowance for credit losses	(3,273)	(2,315)	(1,980)	(668)
SFR 1-4 1st DT liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	790,349	666,960
SFR HELOCs and junior liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	393,666	337,513
Allowance for credit losses	(11,413)	(10,510)	(11,771)	(6,183)
Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	56,728	67,078
Allowance for credit losses	$ (1,958)	$ (2,241)	$ (3,260)	$ (1,595)

Loans - Narrative (Details)

Loans - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 6,450,447				$ 4,916,624				$ 6,450,447	$ 4,916,624
Loans, including fees	81,756	$ 75,956	$ 69,918	$ 57,745	60,804	$ 60,725	$ 60,304	$ 60,436	285,375	242,269	$ 233,721
Payment Protection Program (PPP)
Loans and Leases Receivable Disclosure [Line Items]
Originations	640,410								640,410
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Loans	569,921				259,355				569,921	259,355
Commercial and industrial | Payment Protection Program (PPP)
Loans and Leases Receivable Disclosure [Line Items]
Loans	1,617				$ 63,311				1,617	63,311
Unamortized loan fee (cost)	$ 15								15
Loans, including fees									$ 2,149	$ 14,148	$ 7,760

Allowance for Credit Losses - A

Allowance for Credit Losses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Allowance for credit loss		$ 105,680	$ 85,376	$ 91,847	$ 30,616
Provision for credit losses		17,945	(7,165)	42,188
Threshold for loan analysis		1,000
Interest lost on nonaccrual loans		1,438	2,226	1,804
Interest income on nonaccrual loans		$ 579	$ 471	$ 701
Loans acquired from Valley Republic Bank
Loans and Leases Receivable Disclosure [Line Items]
Provision for credit losses	$ 10,820
Minimum
Loans and Leases Receivable Disclosure [Line Items]
Valuation frequency period		3 months
Maximum
Loans and Leases Receivable Disclosure [Line Items]
Valuation frequency period		12 months

Allowance for Credit Losses - S

Allowance for Credit Losses - Summary of Activity in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	$ 105,680	$ 85,376	$ 91,847	$ 30,616
Total allowance for credit losses
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	103,266	84,394
Qualitative and forecast factor allowance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	70,777	59,855
Quantitative (Cohort) model allowance reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	32,489	24,539
Allowance for individually evaluated loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	$ 2,414	$ 982

Allowance for Credit Losses -_2

Allowance for Credit Losses - Summary of Loans and Lease Purchased and Acquired with Credit Deterioration (Details) $ in Thousands	Mar. 25, 2022 USD ($)
Financing Receivable, Past Due [Line Items]
Par value	$ 68,513
ACL at acquisition	(2,037)
Non-credit discount	(2,956)
Purchase price	63,520
Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Par value	27,237
ACL at acquisition	(1,573)
Non-credit discount	(2,305)
Purchase price	23,359
Consumer
Financing Receivable, Past Due [Line Items]
Par value	3,877
ACL at acquisition	(144)
Non-credit discount	(360)
Purchase price	3,373
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Par value	2,674
ACL at acquisition	(81)
Non-credit discount	(47)
Purchase price	2,546
Construction
Financing Receivable, Past Due [Line Items]
Par value	25,645
ACL at acquisition	(201)
Non-credit discount	(232)
Purchase price	25,212
Agriculture production
Financing Receivable, Past Due [Line Items]
Par value	9,080
ACL at acquisition	(38)
Non-credit discount	(12)
Purchase price	$ 9,030

Allowance for Credit Losses -_3

Allowance for Credit Losses - Summary of Activity in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 85,376	$ 91,847	$ 30,616
ACL on PCD Loans	2,037
Charge-offs	(1,585)	(2,392)	(1,755)
Recoveries	1,907	3,086	1,885
Provision for (Benefit from) Credit Losses	17,945	(7,165)	42,188
Ending  Balance	105,680	85,376	91,847
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	3,790	3,400
ACL on PCD Loans	0
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	525	390
Ending  Balance	4,315	3,790	3,400
Credit Loss [Roll Forward]
Beginning Balance	89,166	95,247	33,391
ACL on PCD Loans	2,037
Charge-offs	(1,585)	(2,392)	(1,755)
Recoveries	1,907	3,086	1,885
Provision for (Benefit from) Credit Losses	18,470	(6,775)	42,813
Ending  Balance	109,995	89,166	95,247
Commercial loans
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance			2,775
Provision for (Benefit from) Credit Losses			625
Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		18,913
Ending  Balance			18,913
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance		0
Ending  Balance			0
Credit Loss [Roll Forward]
Beginning Balance		18,913
Ending  Balance			18,913
Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	51,140	53,693	11,995
ACL on PCD Loans	1,573
Charge-offs	(294)	(144)	(182)
Recoveries	3	806	226
Provision for (Benefit from) Credit Losses	8,959	(3,215)	29,806
Ending  Balance	61,381	51,140	53,693
Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		11,848
Ending  Balance			11,848
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	23,474	25,148	10,084
ACL on PCD Loans	144
Charge-offs	(594)	(751)	(799)
Recoveries	743	1,501	1,067
Provision for (Benefit from) Credit Losses	872	(2,424)	6,512
Ending  Balance	24,639	23,474	25,148
Consumer | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		8,284
Ending  Balance			8,284
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	3,862	4,252	4,867
ACL on PCD Loans	81
Charge-offs	(697)	(1,470)	(774)
Recoveries	1,157	755	568
Provision for (Benefit from) Credit Losses	9,194	325	1,552
Ending  Balance	13,597	3,862	4,252
Commercial and industrial | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		(1,961)
Ending  Balance			(1,961)
Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	5,667	7,540	3,388
ACL on PCD Loans	201
Charge-offs	0	(27)	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	(726)	(1,846)	3,219
Ending  Balance	5,142	5,667	7,540
Construction | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		933
Ending  Balance			933
Agriculture production
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	1,215	1,209	261
ACL on PCD Loans	38
Charge-offs	0	0	0
Recoveries	4	24	24
Provision for (Benefit from) Credit Losses	(351)	(18)	1,103
Ending  Balance	906	1,215	1,209
Agriculture production | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		(179)
Ending  Balance			(179)
Leases
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	18	5	21
ACL on PCD Loans	0
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	(3)	13	(4)
Ending  Balance	15	18	5
Leases | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		(12)
Ending  Balance			(12)
CRE non-owner occupied | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	25,739	29,380	5,948
ACL on PCD Loans	746
Charge-offs	0	0	0
Recoveries	1	12	198
Provision for (Benefit from) Credit Losses	4,476	(3,653)	16,533
Ending  Balance	30,962	25,739	29,380
CRE non-owner occupied | Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		6,701
Ending  Balance			6,701
CRE owner occupied | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	10,691	10,861	2,027
ACL on PCD Loans	63
Charge-offs	0	(18)	0
Recoveries	2	794	28
Provision for (Benefit from) Credit Losses	3,258	(946)	6,525
Ending  Balance	14,014	10,691	10,861
CRE owner occupied | Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		2,281
Ending  Balance			2,281
Multifamily | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	12,395	11,472	3,352
ACL on PCD Loans	0
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	737	923	5,839
Ending  Balance	13,132	12,395	11,472
Multifamily | Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		2,281
Ending  Balance			2,281
Farmland | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	2,315	1,980	668
ACL on PCD Loans	764
Charge-offs	(294)	(126)	(182)
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	488	461	909
Ending  Balance	3,273	2,315	1,980
Farmland | Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		585
Ending  Balance			585
SFR 1-4 1st DT liens | Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	10,723	10,117	2,306
ACL on PCD Loans	144
Charge-offs	0	(145)	(13)
Recoveries	79	13	416
Provision for (Benefit from) Credit Losses	322	738	4,733
Ending  Balance	11,268	10,723	10,117
SFR 1-4 1st DT liens | Consumer | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		2,675
Ending  Balance			2,675
SFR HELOCs and junior liens | Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	10,510	11,771	6,183
ACL on PCD Loans	0
Charge-offs	(22)	(29)	(116)
Recoveries	429	1,127	304
Provision for (Benefit from) Credit Losses	496	(2,359)	762
Ending  Balance	11,413	10,510	11,771
SFR HELOCs and junior liens | Consumer | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		4,638
Ending  Balance			4,638
Other | Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	2,241	3,260	1,595
ACL on PCD Loans	0
Charge-offs	(572)	(577)	(670)
Recoveries	235	361	347
Provision for (Benefit from) Credit Losses	54	(803)	1,017
Ending  Balance	$ 1,958	2,241	3,260
Other | Consumer | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance		$ 971
Ending  Balance			$ 971

Allowance for Credit Losses -_4

Allowance for Credit Losses - Schedule Credit Quality Indicators (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	$ 1,246,402	$ 1,253,320
Fiscal year before latest fiscal year	1,284,725	627,186
Two years before latest fiscal year	607,121	518,074
Three years before latest fiscal year	526,167	370,577
Four years before latest fiscal year	378,767	434,421
Prior	1,383,071	1,094,878
Revolving Loans Amortized Cost Basis	1,010,395	601,115
Revolving Loans Converted to Term	13,799	17,053
Total	6,450,447	4,916,624
Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	4,359,083	3,306,054
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	1,240,743	1,071,551
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	130,035	92,972
Fiscal year before latest fiscal year	66,247	20,350
Two years before latest fiscal year	22,946	27,550
Three years before latest fiscal year	23,194	11,639
Four years before latest fiscal year	7,799	7,230
Prior	6,430	7,268
Revolving Loans Amortized Cost Basis	312,686	91,306
Revolving Loans Converted to Term	584	1,040
Total	569,921	259,355
Construction
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	72,840	68,993
Fiscal year before latest fiscal year	72,308	80,039
Two years before latest fiscal year	43,409	58,383
Three years before latest fiscal year	15,815	4,849
Four years before latest fiscal year	2,159	1,716
Prior	5,029	8,301
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	211,560	222,281
Agriculture production
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	3,414	2,068
Fiscal year before latest fiscal year	2,777	878
Two years before latest fiscal year	1,149	1,393
Three years before latest fiscal year	1,104	951
Four years before latest fiscal year	8,992	940
Prior	1,089	895
Revolving Loans Amortized Cost Basis	42,889	43,686
Revolving Loans Converted to Term	0	0
Total	61,414	50,811
Leases
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	7,726	6,572
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	7,726	6,572
CRE non-owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	399,910	275,305
Fiscal year before latest fiscal year	305,500	127,299
Two years before latest fiscal year	153,728	208,150
Three years before latest fiscal year	241,692	134,827
Four years before latest fiscal year	148,901	229,710
Prior	774,854	576,219
Revolving Loans Amortized Cost Basis	125,140	51,631
Revolving Loans Converted to Term	0	0
Total	2,149,725	1,603,141
CRE owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	213,445	193,607
Fiscal year before latest fiscal year	214,083	104,571
Two years before latest fiscal year	126,412	64,837
Three years before latest fiscal year	66,868	50,224
Four years before latest fiscal year	50,858	58,818
Prior	268,762	211,505
Revolving Loans Amortized Cost Basis	44,379	22,745
Revolving Loans Converted to Term	0	0
Total	984,807	706,307
Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	159,318	278,942
Fiscal year before latest fiscal year	290,170	100,752
Two years before latest fiscal year	96,937	76,127
Three years before latest fiscal year	108,586	109,374
Four years before latest fiscal year	106,287	85,932
Prior	154,250	147,137
Revolving Loans Amortized Cost Basis	28,989	25,236
Revolving Loans Converted to Term	0	0
Total	944,537	823,500
Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	50,206	43,601
Fiscal year before latest fiscal year	54,058	17,399
Two years before latest fiscal year	18,757	23,118
Three years before latest fiscal year	24,354	15,119
Four years before latest fiscal year	15,544	10,904
Prior	45,613	22,345
Revolving Loans Amortized Cost Basis	71,482	40,620
Revolving Loans Converted to Term	0	0
Total	280,014	173,106
SFR 1-4 1st DT liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	194,933	269,846
Fiscal year before latest fiscal year	266,574	159,860
Two years before latest fiscal year	133,453	40,947
Three years before latest fiscal year	33,677	35,251
Four years before latest fiscal year	32,826	36,869
Prior	124,844	119,753
Revolving Loans Amortized Cost Basis	8	0
Revolving Loans Converted to Term	4,034	4,434
Total	790,349	666,960
SFR HELOCs and junior liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	505	494
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	127	240
Revolving Loans Amortized Cost Basis	383,853	325,200
Revolving Loans Converted to Term	9,181	11,579
Total	393,666	337,513
Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	14,070	20,920
Fiscal year before latest fiscal year	13,008	16,038
Two years before latest fiscal year	10,330	17,569
Three years before latest fiscal year	10,877	8,343
Four years before latest fiscal year	5,401	2,302
Prior	2,073	1,215
Revolving Loans Amortized Cost Basis	969	691
Revolving Loans Converted to Term	0	0
Total	56,728	67,078
Pass
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	1,235,594	1,234,027
Fiscal year before latest fiscal year	1,264,279	624,198
Two years before latest fiscal year	592,002	500,876
Three years before latest fiscal year	496,716	362,141
Four years before latest fiscal year	368,729	422,386
Prior	1,317,334	1,042,858
Revolving Loans Amortized Cost Basis	965,422	586,529
Revolving Loans Converted to Term	11,869	14,062
Total	6,251,945	4,787,077
Pass | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	125,710	92,972
Fiscal year before latest fiscal year	64,966	17,933
Two years before latest fiscal year	17,746	27,335
Three years before latest fiscal year	23,131	11,335
Four years before latest fiscal year	7,628	6,355
Prior	5,051	6,774
Revolving Loans Amortized Cost Basis	297,341	89,358
Revolving Loans Converted to Term	483	860
Total	542,056	252,922
Pass | Construction
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	72,840	66,318
Fiscal year before latest fiscal year	72,308	79,567
Two years before latest fiscal year	43,409	58,383
Three years before latest fiscal year	15,358	4,849
Four years before latest fiscal year	2,159	1,716
Prior	4,900	8,148
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	210,974	218,981
Pass | Agriculture production
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	3,414	2,068
Fiscal year before latest fiscal year	2,777	878
Two years before latest fiscal year	1,149	1,393
Three years before latest fiscal year	1,104	801
Four years before latest fiscal year	8,902	940
Prior	1,058	853
Revolving Loans Amortized Cost Basis	38,425	43,686
Revolving Loans Converted to Term	0	0
Total	56,829	50,619
Pass | Leases
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	7,726	6,572
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	7,726	6,572
Pass | CRE non-owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	399,910	275,305
Fiscal year before latest fiscal year	304,636	127,299
Two years before latest fiscal year	152,960	199,764
Three years before latest fiscal year	221,659	133,046
Four years before latest fiscal year	147,842	224,581
Prior	748,994	543,430
Revolving Loans Amortized Cost Basis	123,794	49,899
Revolving Loans Converted to Term	0	0
Total	2,099,795	1,553,324
Pass | CRE owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	210,101	178,092
Fiscal year before latest fiscal year	197,787	104,571
Two years before latest fiscal year	120,929	63,979
Three years before latest fiscal year	64,244	48,721
Four years before latest fiscal year	49,755	55,399
Prior	251,137	203,431
Revolving Loans Amortized Cost Basis	43,343	22,745
Revolving Loans Converted to Term	0	0
Total	937,296	676,938
Pass | Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	159,318	278,942
Fiscal year before latest fiscal year	290,170	100,752
Two years before latest fiscal year	96,937	71,822
Three years before latest fiscal year	108,586	109,374
Four years before latest fiscal year	106,287	85,932
Prior	154,125	146,984
Revolving Loans Amortized Cost Basis	28,989	25,236
Revolving Loans Converted to Term	0	0
Total	944,412	819,042
Pass | Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	47,067	43,601
Fiscal year before latest fiscal year	53,275	17,399
Two years before latest fiscal year	16,739	20,223
Three years before latest fiscal year	18,589	15,119
Four years before latest fiscal year	12,386	9,129
Prior	34,528	18,455
Revolving Loans Amortized Cost Basis	53,684	37,612
Revolving Loans Converted to Term	0	0
Total	236,268	161,538
Pass | SFR 1-4 1st DT liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	194,933	268,743
Fiscal year before latest fiscal year	265,370	159,860
Two years before latest fiscal year	131,922	40,661
Three years before latest fiscal year	33,395	30,880
Four years before latest fiscal year	28,545	36,197
Prior	115,469	113,519
Revolving Loans Amortized Cost Basis	8	0
Revolving Loans Converted to Term	2,924	3,527
Total	772,566	653,387
Pass | SFR HELOCs and junior liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	505	494
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	127	185
Revolving Loans Amortized Cost Basis	378,939	317,381
Revolving Loans Converted to Term	8,462	9,675
Total	388,033	327,735
Pass | Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	14,070	20,920
Fiscal year before latest fiscal year	12,990	15,939
Two years before latest fiscal year	10,211	17,316
Three years before latest fiscal year	10,650	8,016
Four years before latest fiscal year	5,225	2,137
Prior	1,945	1,079
Revolving Loans Amortized Cost Basis	899	612
Revolving Loans Converted to Term	0	0
Total	55,990	66,019
Special Mention
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	6,302	15,515
Fiscal year before latest fiscal year	17,236	2,463
Two years before latest fiscal year	2,109	8,898
Three years before latest fiscal year	26,230	4,505
Four years before latest fiscal year	3,681	9,136
Prior	39,328	28,666
Revolving Loans Amortized Cost Basis	31,568	7,063
Revolving Loans Converted to Term	546	1,215
Total	127,000	77,461
Special Mention | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	3,032	0
Fiscal year before latest fiscal year	139	2,417
Two years before latest fiscal year	21	69
Three years before latest fiscal year	49	152
Four years before latest fiscal year	138	71
Prior	768	80
Revolving Loans Amortized Cost Basis	11,547	116
Revolving Loans Converted to Term	0	0
Total	15,694	2,905
Special Mention | Construction
Loans and Leases Receivable Disclosure [Line Items]
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 | Agriculture production
Loans and Leases Receivable Disclosure [Line Items]
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	150
Four years before latest fiscal year	90	0
Prior	31	42
Revolving Loans Amortized Cost Basis	1,632	0
Revolving Loans Converted to Term	0	0
Total	1,753	192
Special Mention | Leases
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	8,386
Three years before latest fiscal year	20,033	399
Four years before latest fiscal year	0	4,390
Prior	21,681	20,612
Revolving Loans Amortized Cost Basis	1,346	1,732
Revolving Loans Converted to Term	0	0
Total	43,060	35,519
Special Mention | CRE owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	131	15,515
Fiscal year before latest fiscal year	16,296	0
Two years before latest fiscal year	234	0
Three years before latest fiscal year	731	289
Four years before latest fiscal year	0	2,964
Prior	6,971	3,833
Revolving Loans Amortized Cost Basis	879	0
Revolving Loans Converted to Term	0	0
Total	25,242	22,601
Special Mention | Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
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 | Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	3,139	0
Fiscal year before latest fiscal year	783	0
Two years before latest fiscal year	246	0
Three years before latest fiscal year	5,000	0
Four years before latest fiscal year	0	1,197
Prior	3,991	2,519
Revolving Loans Amortized Cost Basis	14,275	1,491
Revolving Loans Converted to Term	0	0
Total	27,434	5,207
Special Mention | SFR 1-4 1st DT liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	1,531	286
Three years before latest fiscal year	282	3,282
Four years before latest fiscal year	3,277	416
Prior	5,854	1,476
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	465	383
Total	11,409	5,843
Special Mention | SFR HELOCs and junior liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
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	53
Revolving Loans Amortized Cost Basis	1,842	3,655
Revolving Loans Converted to Term	81	832
Total	1,923	4,540
Special Mention | Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	18	46
Two years before latest fiscal year	77	157
Three years before latest fiscal year	135	233
Four years before latest fiscal year	176	98
Prior	32	51
Revolving Loans Amortized Cost Basis	47	69
Revolving Loans Converted to Term	0	0
Total	485	654
Substandard
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	4,506	3,778
Fiscal year before latest fiscal year	3,210	525
Two years before latest fiscal year	13,010	8,300
Three years before latest fiscal year	3,221	3,931
Four years before latest fiscal year	6,357	2,899
Prior	26,409	23,354
Revolving Loans Amortized Cost Basis	13,405	7,523
Revolving Loans Converted to Term	1,384	1,776
Total	71,502	52,086
Substandard | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	1,293	0
Fiscal year before latest fiscal year	1,142	0
Two years before latest fiscal year	5,179	146
Three years before latest fiscal year	14	152
Four years before latest fiscal year	33	804
Prior	611	414
Revolving Loans Amortized Cost Basis	3,798	1,832
Revolving Loans Converted to Term	101	180
Total	12,171	3,528
Substandard | Construction
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	2,675
Fiscal year before latest fiscal year	0	472
Two years before latest fiscal year	0	0
Three years before latest fiscal year	457	0
Four years before latest fiscal year	0	0
Prior	129	153
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	586	3,300
Substandard | Agriculture production
Loans and Leases Receivable Disclosure [Line Items]
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	2,832	0
Revolving Loans Converted to Term	0	0
Total	2,832	0
Substandard | Leases
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	864	0
Two years before latest fiscal year	768	0
Three years before latest fiscal year	0	1,382
Four years before latest fiscal year	1,059	739
Prior	4,179	12,177
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	6,870	14,298
Substandard | CRE owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	3,213	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	5,249	858
Three years before latest fiscal year	1,893	1,214
Four years before latest fiscal year	1,103	455
Prior	10,654	4,241
Revolving Loans Amortized Cost Basis	157	0
Revolving Loans Converted to Term	0	0
Total	22,269	6,768
Substandard | Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	4,305
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	125	153
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	125	4,458
Substandard | Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	1,772	2,895
Three years before latest fiscal year	765	0
Four years before latest fiscal year	3,158	578
Prior	7,094	1,371
Revolving Loans Amortized Cost Basis	3,523	1,517
Revolving Loans Converted to Term	0	0
Total	16,312	6,361
Substandard | SFR 1-4 1st DT liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	1,103
Fiscal year before latest fiscal year	1,204	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	1,089
Four years before latest fiscal year	1,004	256
Prior	3,521	4,758
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	645	524
Total	6,374	7,730
Substandard | SFR HELOCs and junior liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
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	2
Revolving Loans Amortized Cost Basis	3,072	4,164
Revolving Loans Converted to Term	638	1,072
Total	3,710	5,238
Substandard | Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	53
Two years before latest fiscal year	42	96
Three years before latest fiscal year	92	94
Four years before latest fiscal year	0	67
Prior	96	85
Revolving Loans Amortized Cost Basis	23	10
Revolving Loans Converted to Term	0	0
Total	253	405
Doubtful/Loss
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0
Fiscal year before latest fiscal year
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 | Construction
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
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
Loans and Leases Receivable Disclosure [Line Items]
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 | Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
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

Allowance for Credit Losses -_5

Allowance for Credit Losses - Analysis of Past Due and Nonaccrual Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Loans	$ 6,450,447	$ 4,916,624
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,359,083	3,306,054
Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,240,743	1,071,551
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	569,921	259,355
Construction
Financing Receivable, Past Due [Line Items]
Loans	211,560	222,281
Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	61,414	50,811
Leases
Financing Receivable, Past Due [Line Items]
Loans	7,726	6,572
CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,149,725	1,603,141
CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	984,807	706,307
Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	944,537	823,500
Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	280,014	173,106
SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	790,349	666,960
SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	393,666	337,513
Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	56,728	67,078
Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	6,450,447	4,916,624
Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,359,083	3,306,054
Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,240,743	1,071,551
Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	569,921	259,355
Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	211,560	222,281
Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	61,414	50,811
Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	7,726	6,572
Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,149,725	1,603,141
Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	984,807	706,307
Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	944,537	823,500
Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	280,014	173,106
Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	790,349	666,960
Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	393,666	337,513
Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	56,728	67,078
Total Past Due Loans | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	4,947	4,332
Total Past Due Loans | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	332	1,509
Total Past Due Loans | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,463	2,128
Total Past Due Loans | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	2,773	557
Total Past Due Loans | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	379	90
Total Past Due Loans | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	0	48
Total Past Due Loans | Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	0	0
Total Past Due Loans | Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	263
Total Past Due Loans | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	173	671
Total Past Due Loans | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	159	0
Total Past Due Loans | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	575
Total Past Due Loans | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	303	375
Total Past Due Loans | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,045	1,609
Total Past Due Loans | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	115	144
30-59 days | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	2,681	836
30-59 days | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	159	497
30-59 days | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	222	145
30-59 days | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	2,300	146
30-59 days | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	0	0
30-59 days | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	0	48
30-59 days | Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	0	0
30-59 days | Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	226
30-59 days | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	271
30-59 days | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	159	0
30-59 days | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
30-59 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	24	0
30-59 days | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	172	36
30-59 days | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	26	109
60-89 days | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	488	880
60-89 days | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	98	164
60-89 days | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	200	381
60-89 days | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	190	245
60-89 days | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	0	90
60-89 days | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	0	0
60-89 days | Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	0	0
60-89 days | Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	37
60-89 days | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	98	127
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	0
60-89 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	0	13
60-89 days | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	166	361
60-89 days | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	34	7
> 90 days | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	1,778	2,616
> 90 days | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	75	848
> 90 days | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,041	1,602
> 90 days | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	283	166
> 90 days | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	379	0
> 90 days | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	0	0
> 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	0	0
> 90 days | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	75	273
> 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	0	575
> 90 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	279	362
> 90 days | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	707	1,212
> 90 days | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	55	28
Current | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	6,445,500	4,912,292
Current | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,358,751	3,304,545
Current | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,239,280	1,069,423
Current | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	567,148	258,798
Current | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	211,181	222,191
Current | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	61,414	50,763
Current | Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	7,726	6,572
Current | Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,149,725	1,602,878
Current | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	984,634	705,636
Current | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	944,378	823,500
Current | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	280,014	172,531
Current | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	790,046	666,585
Current | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	392,621	335,904
Current | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	$ 56,613	$ 66,934

Allowance for Credit Losses -_6

Allowance for Credit Losses - Schedule of Non Accrual Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	$ 18,125	$ 25,704
Non accrual, no allowance including guaranteed loans	18,230	26,417
Non accrual including guaranteed loans	21,321	30,350
Total non accrual	21,096	29,575
Past due 90 days or more and still accruing	0	0
Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	105	713
Total non accrual	225	775
Commercial real estate
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	8,574	17,571
Total non accrual	8,574	20,412
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	6,662	6,927
Total non accrual	7,459	7,467
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	1,224	1,904
Total non accrual	3,518	2,416
Past due 90 days or more and still accruing	0	0
Construction
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	491	15
Total non accrual	491	55
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	1,279	0
Total non accrual	1,279	0
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	1,739	7,899
Total non accrual	1,739	7,899
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	4,938	4,763
Total non accrual	4,938	5,036
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	125	4,457
Total non accrual	125	4,457
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	1,772	452
Total non accrual	1,772	3,020
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	4,117	3,594
Total non accrual	4,220	3,595
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	2,498	3,285
Total non accrual	3,155	3,801
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	47	48
Total non accrual	84	71
Past due 90 days or more and still accruing	$ 0	$ 0

Allowance for Credit Losses -_7

Allowance for Credit Losses - Amortized Cost Basis of Collateral Dependent Loans, By Class of Loan (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 6,450,447	$ 4,916,624
Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,325	2,591
Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	173	1,253
Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,103	1,545
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,334	7,315
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	125	4,458
Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,772	1,027
SFR -1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,996	5,253
SFR -2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,121	1,636
Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	61	5
A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,596	2,162
Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,329	117
Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	20,935	27,362
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,359,083	3,306,054
Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,325	2,591
Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	173	1,253
Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,103	1,545
Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,076	7,272
Commercial real estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	125	4,458
Commercial real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,772	1,027
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
Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,574	18,146
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,240,743	1,071,551
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	5	43
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	5,884	5,238
Consumer | SFR -2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,121	1,636
Consumer | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	61	5
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	2	5
Consumer | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	7,073	6,927
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	569,921	259,355
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	1,874	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	1,596	2,162
Commercial and industrial | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	48	112
Commercial and industrial | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,518	2,274
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	211,560	222,281
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	379	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	112	15
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
Construction | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	491	15
Agriculture production
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	61,414	50,811
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	0	0
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	1,279	0
Agriculture production | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,279	0
Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	7,726	6,572
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
Leases | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0
Leases | Total
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	2,149,725	1,603,141
CRE non-owner occupied | Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	777	2,591
CRE non-owner occupied | Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	98	1,253
CRE non-owner occupied | Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	1,545
CRE non-owner occupied | Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	864	7,272
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 non-owner occupied | Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,739	12,661
CRE owner occupied | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	984,807	706,307
CRE owner occupied | Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	548	0
CRE owner occupied | Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	75	0
CRE owner occupied | Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,103	0
CRE owner occupied | Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,212	0
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
CRE owner occupied | Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,938	0
Multifamily | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	944,537	823,500
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	125	4,458
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
Multifamily | Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	125	4,458
Farmland | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	280,014	173,106
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	0
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	1,772	1,027
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
Farmland | Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,772	1,027
SFR 1-4 1st DT liens | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	790,349	666,960
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	4,220	3,589
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 1-4 1st DT liens | Consumer | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,220	3,589
SFR HELOCs and junior liens | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	393,666	337,513
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	1,664	1,649
SFR HELOCs and junior liens | Consumer | SFR -2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,121	1,636
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
SFR HELOCs and junior liens | Consumer | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,785	3,285
Other | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	56,728	67,078
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	5	43
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	61	5
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	2	5
Other | Consumer | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 68	$ 53

Allowance for Credit Losses - T

Allowance for Credit Losses - Troubled Debt Restructurings (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) investmentSecurity	Dec. 31, 2021 USD ($) investmentSecurity	Dec. 31, 2020 USD ($) investmentSecurity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	9	16	18
Pre-mod outstanding principal balance	$ 8,477	$ 9,083	$ 6,010
Post-mod outstanding principal balance	8,819	9,116	6,074
Financial impact due to TDR taken as additional provision	$ 0	$ 2,521	$ 471
Number that defaulted during the period (in investment securities) | investmentSecurity	3	5,000	8
Recorded investment of TDR's that defaulted during the period	$ 168	$ 1,107	$ 2,862
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ (5)	$ (90)
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	4	8	10
Pre-mod outstanding principal balance	$ 1,228	$ 6,407	$ 3,732
Post-mod outstanding principal balance	1,570	6,401	3,827
Financial impact due to TDR taken as additional provision	$ 0	$ 1,812	$ 381
Number that defaulted during the period (in investment securities) | investmentSecurity	0	3,000	3
Recorded investment of TDR's that defaulted during the period	$ 0	$ 847	$ 1,542
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ 0
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	0	1	2
Pre-mod outstanding principal balance	$ 0	$ 200	$ 172
Post-mod outstanding principal balance	0	247	169
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	2	0	5
Recorded investment of TDR's that defaulted during the period	$ 146	$ 0	$ 1,320
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ (90)
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	1	7	6
Pre-mod outstanding principal balance	$ 39	$ 2,476	$ 2,106
Post-mod outstanding principal balance	39	2,468	2,078
Financial impact due to TDR taken as additional provision	$ 0	$ 709	$ 90
Number that defaulted during the period (in investment securities) | investmentSecurity	1	2,000	0
Recorded investment of TDR's that defaulted during the period	$ 22	$ 260	$ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ (5)	$ 0
Construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	0	0	0
Pre-mod outstanding principal balance	$ 0	$ 0	$ 0
Post-mod outstanding principal balance	0	0	0
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	0	0	0
Recorded investment of TDR's that defaulted during the period	$ 0	$ 0	$ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ 0
Agriculture production
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	4	0	0
Pre-mod outstanding principal balance	$ 7,210	$ 0	$ 0
Post-mod outstanding principal balance	7,210	0	0
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	0	0	0
Recorded investment of TDR's that defaulted during the period	$ 0	$ 0	$ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ 0
Leases
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	0	0	0
Pre-mod outstanding principal balance	$ 0	$ 0	$ 0
Post-mod outstanding principal balance	0	0	0
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	0	0	0
Recorded investment of TDR's that defaulted during the period	$ 0	$ 0	$ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ 0
CRE non-owner occupied | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	0	5	1
Pre-mod outstanding principal balance	$ 0	$ 4,966	$ 319
Post-mod outstanding principal balance	0	4,956	314
Financial impact due to TDR taken as additional provision	$ 0	$ 1,020	$ 314
Number that defaulted during the period (in investment securities) | investmentSecurity	0	0	1
Recorded investment of TDR's that defaulted during the period	$ 0	$ 0	$ 141
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ 0
CRE owner occupied | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	1	1	4
Pre-mod outstanding principal balance	$ 0	$ 740	$ 1,847
Post-mod outstanding principal balance	130	742	1,877
Financial impact due to TDR taken as additional provision	$ 0	$ 742	$ 67
Number that defaulted during the period (in investment securities) | investmentSecurity	0	0	1
Recorded investment of TDR's that defaulted during the period	$ 0	$ 0	$ 950
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ 0
Multifamily | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	0	0	0
Pre-mod outstanding principal balance	$ 0	$ 0	$ 0
Post-mod outstanding principal balance	0	0	0
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	0	0	0
Recorded investment of TDR's that defaulted during the period	$ 0	$ 0	$ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ 0
Farmland | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	3	2	5
Pre-mod outstanding principal balance	$ 1,228	$ 701	$ 1,566
Post-mod outstanding principal balance	1,440	703	1,636
Financial impact due to TDR taken as additional provision	$ 0	$ 50	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	0	3,000	1
Recorded investment of TDR's that defaulted during the period	$ 0	$ 847	$ 451
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ 0
SFR 1-4 1st DT liens | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	0	0	0
Pre-mod outstanding principal balance	$ 0	$ 0	$ 0
Post-mod outstanding principal balance	0	0	0
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	0	0	3
Recorded investment of TDR's that defaulted during the period	$ 0	$ 0	$ 1,180
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ 0
SFR HELOCs and junior liens | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	0	1	2
Pre-mod outstanding principal balance	$ 0	$ 200	$ 172
Post-mod outstanding principal balance	0	247	169
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	2	0	2
Recorded investment of TDR's that defaulted during the period	$ 146	$ 0	$ 140
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ (90)
Other | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	0	0	0
Pre-mod outstanding principal balance	$ 0	$ 0	$ 0
Post-mod outstanding principal balance	0	0	0
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	0	0	0
Recorded investment of TDR's that defaulted during the period	$ 0	$ 0	$ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ 0	$ 0

Real Estate Owned - Summary of

Real Estate Owned - Summary of Activity in Balance of Foreclosed Assets (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) asset	Dec. 31, 2021 USD ($) asset
Repossessed Assets [Abstract]
Beginning balance, net	$ 2,594	$ 2,844
Additions/transfers from loans	1,349	1,052
Dispositions/sales	(707)	(1,458)
Valuation adjustments	203	156
Ending balance, net	3,439	2,594
Ending valuation allowance	$ (113)	$ (9)
Ending number of foreclosed assets (in assets) | asset	9	6
Proceeds from sale of real estate owned	$ 873	$ 1,526
Gain on sale of real estate owned	$ 166	$ 233

Real Estate Owned - Additional

Real Estate Owned - Additional Information (Detail)	Dec. 31, 2022 USD ($) property
Schedule Of Foreclosed Assets Activity [Line Items]
Formal foreclosure proceedings | $	$ 0
Land
Schedule Of Foreclosed Assets Activity [Line Items]
Number of properties	1
Residential Real Estate
Schedule Of Foreclosed Assets Activity [Line Items]
Number of foreclosed properties	8

Premises and Equipment - Summar

Premises and Equipment - Summary of Premises and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Less: Accumulated depreciation	$ (61,657)	$ (58,401)
Premises and equipment, net	72,327	78,687
Depreciable premises and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	132,767	135,689
Premises and equipment, net	71,110	77,288
Land and land improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	25,899	29,002
Buildings
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	64,018	64,382
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	42,850	42,305
Construction in progress
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 1,217	$ 1,399

Premises and Equipment - Additi

Premises and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Depreciation expense for premises and equipment	$ 5,676	$ 5,936	$ 6,100

Cash Value of Life Insurance -

Cash Value of Life Insurance - Summary of Activity in Balance of Cash Value of Life Insurance (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) company employee policy	Dec. 31, 2021 USD ($) company policy employee	Dec. 31, 2020 USD ($)
Insurance [Line Items]
Beginning balance	$ 117,857	$ 118,870
Increase in cash value of life insurance	2,858	2,775	$ 2,949
Gain on death benefit	309	702	498
Insurance proceeds receivable reclassified to other assets	(891)	(4,490)
Ending balance	133,742	117,857	$ 118,870
End of period death benefit	$ 223,427	$ 193,318
Number of policies owned (in policies) | policy	216	176
Insurance companies used (in companies) | company	14	14
Current and former employees and directors covered (in employees) | employee	79	59
FNBB
Insurance [Line Items]
Acquired policies from business combination	$ 13,609	$ 0

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Summary of Goodwill Intangible (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Beginning balance	$ 220,872
Additions	83,570
Reductions	0
Ending balance	$ 304,442

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Additional Information (Detail)		9 Months Ended	12 Months Ended
	Mar. 18, 2016 USD ($) branch	Sep. 30, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Mar. 25, 2022 USD ($)	Oct. 03, 2014 USD ($)
Finite-Lived Intangible Assets [Line Items]
Impairment charges		$ 0	$ 0	$ 0	$ 0
Valley Republic Bancorp
Finite-Lived Intangible Assets [Line Items]
Additions to core deposit intangibles						$ 10,635,000
FNBB
Finite-Lived Intangible Assets [Line Items]
Additions to core deposit intangibles	$ 2,046,000
Bank of America
Finite-Lived Intangible Assets [Line Items]
Additions to core deposit intangibles							$ 6,614,000
Number of branches (in branches) | branch	3

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Summary of Core Deposit Intangibles (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Core Deposit Intangibles [Roll Forward]
Core deposit intangibles, beginning balance	$ 36,265
Fully amortized portion	(8,074)	$ (1,460)
Acquisition of VRB	10,635	0
Core deposit intangibles, ending balance	38,826	36,265
Accumulated Amortization, Core Deposit Intangibles [Roll Forward]
Accumulated amortization, gross	(23,896)	(19,891)
Fully amortized portion	8,074	1,460
Amortization expense	(6,334)	(5,465)
Accumulated amortization, gross ending balance	(22,156)	(23,896)
Core deposit intangibles
Core Deposit Intangibles [Roll Forward]
Core deposit intangibles, beginning balance	36,265	37,725
Core deposit intangibles, ending balance		36,265
Accumulated Amortization, Core Deposit Intangibles [Roll Forward]
Core deposit intangibles, net, ending balance	$ 16,670	$ 12,369

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets - Remaining Estimated Core Deposit Intangible Amortization (Detail) - Core deposit intangibles - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
2023	$ 6,118
2024	4,120
2025	1,961
2026	1,527
2027	1,008
Thereafter	1,936
Total	$ 16,670	$ 12,369

Mortgage Servicing Rights - Fai

Mortgage Servicing Rights - Fair Value of Mortgage Servicing Rights (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) yr	Dec. 31, 2021 USD ($) yr	Dec. 31, 2020 USD ($) yr
Servicing Assets at Fair Value [Line Items]
Contractually specified servicing fees, late fees and ancillary fees earned	$ 1,887	$ 1,881	$ 1,855
Mortgage servicing rights
Servicing Assets at Fair Value [Line Items]
Balance at beginning of period	5,874	5,092	6,200
Additions	537	1,654	1,526
Change in fair value	301	(872)	(2,634)
Balance at end of period	$ 6,712	$ 5,874	$ 5,092
Constant prepayment rate
Servicing Assets at Fair Value [Line Items]
Fair value of mortgage servicing rights, weighted average	1.270	2.080	2.940
Expected life (years)
Servicing Assets at Fair Value [Line Items]
Fair value of mortgage servicing rights, weighted average | yr	7.6	5.7	4.5
Discount rate
Servicing Assets at Fair Value [Line Items]
Fair value of mortgage servicing rights, weighted average	0.120	0.120	0.120
Loans
Servicing Assets at Fair Value [Line Items]
Balance at beginning of period	$ 770,299	$ 779,530	$ 767,662
Balance at end of period	$ 739,919	$ 770,299	$ 779,530

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease cost	$ 5,725	$ 5,201
Short-term lease cost	283	241
Variable lease cost	26	11
Sublease income	0	(24)
Total lease cost	$ 6,034	$ 5,429

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating cash flows for operating leases	$ 5,904	$ 4,964	$ 4,927
ROUA obtained in exchange for operating lease liabilities	$ 6,149	$ 2,883

Leases - Lease Term and Discoun

Leases - Lease Term and Discount Rate (Detail)	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Weighted-average remaining lease term	8 years 3 months 18 days	9 years 3 months 18 days
Weighted-average discount rate	3%	2.90%

Leases - Future Expected Operat

Leases - Future Expected Operating Lease Payments (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
2023	$ 5,522
2024	5,169
2025	4,589
2026	4,105
2027	3,400
Thereafter	10,477
Total	33,262
Discount for present value of expected cash flows	(4,258)
Lease liability at December 31, 2022	$ 29,004	$ 26,280

Deposits - Summary of Balances

Deposits - Summary of Balances of Deposits (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deposits [Abstract]
Noninterest-bearing demand	$ 3,502,095	$ 2,979,882
Interest-bearing demand	1,718,541	1,568,682
Savings	2,884,378	2,520,959
Time certificates, $250,000 and over	46,350	44,652
Other time certificates	177,649	252,984
Total deposits	$ 8,329,013	$ 7,367,159

Deposits - Additional Informati

Deposits - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deposits [Abstract]
Overdrawn deposit balances classified as consumer loans	$ 1,766	$ 2,324

Deposits - Schedule of Maturiti

Deposits - Schedule of Maturities of Time Deposits (Detail) $ in Thousands	Dec. 31, 2022 USD ($)
Summary of maturities of time deposits [Abstract]
2023	$ 164,107
2024	27,881
2025	22,598
2026	7,257
2027	2,156
Thereafter	0
Total	$ 223,999

Other Borrowings - Summary of B

Other Borrowings - Summary of Balances of Other Borrowings (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total other borrowings	$ 264,605	$ 50,087
4.65% Fixed Rate Collateralized Borrowings
Debt Instrument [Line Items]
Other secured financings	$ 216,700	0
Collateralized borrowing, fixed rate	4.65%
0.05% Fixed Rate Collateralized Borrowings
Debt Instrument [Line Items]
Other secured financings	$ 47,905	$ 50,087
Collateralized borrowing, fixed rate	0.05%		0.05%

Other Borrowings - Additional I

Other Borrowings - Additional Information (Detail)	Dec. 31, 2022 USD ($)
Debt Disclosure [Abstract]
Repurchase investment securities sold and pledged as collateral under securities repurchase agreement	$ 47,905,000
FHLB collateral line of credit, maximum borrowings capacity	2,485,905,000
Loans designated as potential collateral under collateralized line of credit with FHLB	80,187,000
Investment securities designated as potential collateral under collateral line of credit	4,389,161,000
Collateralized line of credit with San Francisco Federal Reserve Bank, maximum borrowings capacity	299,689,000
Collateralized line of credit with San Francisco Federal Reserve Bank, outstanding balance	0
Investment securities designated as potential collateral under collateral line of credit with San Francisco Federal Reserve Bank	5,000
Loans designated as potential collateral under collateral line of credit with San Francisco Federal Reserve Bank	424,946,000
Unused correspondent banking lines of credit from commercial banks for federal funds	$ 30,000,000

Junior Subordinated Debt - Addi

Junior Subordinated Debt - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) trust location	Mar. 25, 2022 USD ($)	Dec. 31, 2021 USD ($)
Class of Stock [Line Items]
Number of subsidiary business trusts (in trusts) | trust	5
Preferred stock, value issued	$ 0		$ 0
Interest deferral period	5 years
Number of locations organized (in locations) | location	2
Senior Subordinated Notes
Class of Stock [Line Items]
Face Value	$ 98,889	$ 36,000
VRB Subordinated - 6% | Senior Subordinated Notes
Class of Stock [Line Items]
Face Value	$ 16,000	16,000
Current Coupon Rate	6%
Interest rate	6%
VRB Subordinated - 6% | Senior Subordinated Loans
Class of Stock [Line Items]
Current Coupon Rate	6%
Interest rate	5%
VRB Subordinated - 6% | Senior Subordinated Loans | LIBOR PLUS
Class of Stock [Line Items]
Basis spread on variable rate	3.52%
VRB Subordinated - 6% | Senior Subordinated Loans | SOFR
Class of Stock [Line Items]
Basis spread on variable rate	4.90%
VRB Subordinated - 5% | Senior Subordinated Notes
Class of Stock [Line Items]
Face Value	$ 20,000	$ 20,000
Current Coupon Rate	5%
Interest rate	5%
Wholly owned subsidiaries
Class of Stock [Line Items]
Preferred stock, value issued	$ 63,000
North Valley Bancorp
Class of Stock [Line Items]
Number of subsidiary business trusts (in trusts) | trust	3
Number of locations acquired (in locations) | location	3

Junior Subordinated Debt - Summ

Junior Subordinated Debt - Summary of Terms and Recorded Balance of Subordinated Debenture (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Mar. 25, 2022	Dec. 31, 2021
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 101,040		$ 58,079
Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Face Value	98,889	$ 36,000
TriCo Cap Trust I
Subordinated Borrowing [Line Items]
Recorded Book Value	20,619		20,619
TriCo Cap Trust I | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Face Value	$ 20,619
Current Coupon Rate	7.13%
TriCo Cap Trust II
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 20,619		20,619
TriCo Cap Trust II | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Face Value	$ 20,619
Current Coupon Rate	6.87%
North Valley Trust II
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 5,503		5,403
North Valley Trust II | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Face Value	$ 6,186
Current Coupon Rate	7.69%
North Valley Trust III
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 4,383		4,291
North Valley Trust III | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Face Value	$ 5,155
Current Coupon Rate	7.12%
North Valley Trust IV
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 7,393		7,147
North Valley Trust IV | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Face Value	$ 10,310
Current Coupon Rate	6.10%
VRB Subordinated - 6%
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 17,187		0
VRB Subordinated - 6% | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Interest rate	6%
Face Value	$ 16,000	16,000
Current Coupon Rate	6%
VRB Subordinated - 5%
Subordinated Borrowing [Line Items]
Recorded Book Value	$ 25,336		$ 0
VRB Subordinated - 5% | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Interest rate	5%
Face Value	$ 20,000	$ 20,000
Current Coupon Rate	5%
LIBOR PLUS | TriCo Cap Trust I | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. LIBOR +	3.05%
LIBOR PLUS | TriCo Cap Trust II | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. LIBOR +	2.55%
LIBOR PLUS | North Valley Trust II | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. LIBOR +	3.25%
LIBOR PLUS | North Valley Trust III | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. LIBOR +	2.80%
LIBOR PLUS | North Valley Trust IV | Senior Subordinated Notes
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. LIBOR +	1.33%

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 shares
Conversion of Stock [Line Items]
Letters of credit, issue period	one year
Common stock, shares outstanding (in shares)	33,331,513	29,730,424
Conversion ratio	1.5991
Common Class B
Conversion of Stock [Line Items]
Common stock, shares outstanding (in shares)	13,396
Common Class A
Conversion of Stock [Line Items]
Value of the Class A shares | $ / shares	$ 207.76
Value of unredeemed Class A equivalent shares | $	$ 4,451

Commitments and Contingencies_2

Commitments and Contingencies - Summary of Bank's Commitments and Contingent Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
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	312,371	213,563
Real estate mortgage loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	458,896	333,764
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	26,599	21,871
Commercial loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	656,705	409,950
Consumer loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	760,588	628,791
Deposit account overdraft privilege
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	$ 126,634	$ 125,670

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Feb. 25, 2021
Class of Stock [Line Items]
Cash dividends received	$ 64,188,000	$ 31,571,000	$ 63,419,000
Stock repurchase plan, amount of shares repurchased	27,148,000	4,958,000	27,069,000
Market value of shares repurchased under equity compensation plans	$ 2,522,000	$ 2,118,000	$ 736,000
Stock options
Class of Stock [Line Items]
Company's common stock in lieu of cash to exercise options to purchase shares (in shares)	39,447	28,276	12,488
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)	27,840	19,413	12,058
Maximum
Class of Stock [Line Items]
Amount available to dividend to holding company	$ 157,036,000
2021 Stock Repurchase Plan
Class of Stock [Line Items]
Repurchase of common stock (in shares)				2,000,000
Stock repurchase plan percentage of common stock				6.70%
Cumulative number of shares repurchased (in shares)	576,881	63,317
2019 Stock Repurchase Plan
Class of Stock [Line Items]
Cumulative number of shares repurchased (in shares)		223	858,717
Common Stock
Class of Stock [Line Items]
Stock repurchase plan, number of shares repurchased (in shares)	644,168	111,229	883,263
Stock repurchase plan, amount of shares repurchased	$ 13,440,000	$ 1,987,000	$ 15,746,000
Market value of shares repurchased under equity compensation plans	$ 1,269,000	$ 2,118,000	$ 736,000

Stock Options and Other Equit_3

Stock Options and Other Equity-Based Incentive Instruments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 shares	Dec. 31, 2020 shares	Apr. 30, 2019 shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding options under the plan (in shares)	15,500	78,825	128,500
Options granted (in shares)	0	0
Restricted Stock Units (RSUs) | Market Plus Service Condition Vesting RSUs
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of units outstanding expected to vest (in shares)	114,481	99,763
Pre-tax compensation costs | $	$ 2,110,000
Number of units released (in shares)	26,338
Restricted Stock Units (RSUs) | Service Condition Vesting RSUs
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of units outstanding expected to vest (in shares)	139,194	103,517
Pre-tax compensation costs | $	$ 3,822,000
Number of units released (in shares)	50,076
Minimum | Restricted Stock Units (RSUs) | Market Plus Service Condition Vesting RSUs
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of units released (in shares)	0
Maximum | Restricted Stock Units (RSUs) | Market Plus Service Condition Vesting RSUs
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of units released (in shares)	171,721
2009 Plan
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding options under the plan (in shares)	15,500
2019 Plan
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Aggregate number of shares of TriCo's common stock issued				1,500,000
Percentage of shares acquired	0.50
Common stock issued pursuant to stock option (in shares)	1
Common stock issued pursuant to performance award (in shares)	2
Outstanding options under the plan (in shares)	0
Options granted (in shares)	0	0	0
2019 Plan | Restricted Stock Units (RSUs)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
RSUs outstanding (in shares)	139,194
2019 Plan | Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Award vesting period	1 year
2019 Plan | Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options available for grant under the plan (in shares)	763,495

Stock Options and Other Equit_4

Stock Options and Other Equity-Based Incentive Instruments - Stock Option Activity (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Number of Shares
Options outstanding, beginning balance (in shares)	78,825	128,500
Options granted (in shares)	0	0
Options exercised (in shares)	(63,325)	(49,675)
Options forfeited (in shares)	0	0
Options outstanding, ending balance (in shares)	15,500	78,825
Option Price per Share
Options granted, option price per share (in USD per share)	$ 0	$ 0
Options forfeited, option price per share (in USD per share)	0	0
Weighted Average Exercise Price
Options outstanding, weighted average exercise price, beginning balance (in USD per share)	19.28	17.72
Options granted, weighted average exercise price (in USD per share)	0	0
Options exercised, weighted average exercise price (in USD per share)	18.79	15.25
Options forfeited, weighted average exercise price (in USD per share)	0	0
Options outstanding, weighted average exercise price, ending balance (in USD per share)	21.27	19.28
Minimum
Option Price per Share
Options outstanding, option price per share, beginning balance (in USD per share)	15.34	14.54
Options exercised, option price per share (in USD per share)	15.34	14.54
Options outstanding, option price per share, ending balance (in USD per share)	19.46	15.34
Maximum
Option Price per Share
Options outstanding, option price per share, beginning balance (in USD per share)	23.21	23.21
Options exercised, option price per share (in USD per share)	19.46	16.59
Options outstanding, option price per share, ending balance (in USD per share)	$ 23.21	$ 23.21

Stock Options and Other Equit_5

Stock Options and Other Equity-Based Incentive Instruments - Summary of Options Outstanding (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options (in shares)	15,500	78,825	128,500
Weighted average exercise price (in USD per share)	$ 21.27	$ 19.28	$ 17.72
Intrinsic value	$ 461
Weighted average remaining contractual term (yrs.)	1 year
Currently Exercisable
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options (in shares)	15,500
Weighted average exercise price (in USD per share)	$ 21.27
Intrinsic value	$ 461
Weighted average remaining contractual term (yrs.)	1 year
Currently Not Exercisable
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options (in shares)	0
Weighted average exercise price (in USD per share)	$ 0
Intrinsic value	$ 0
Weighted average remaining contractual term (yrs.)	0 years

Stock Options and Other Equit_6

Stock Options and Other Equity-Based Incentive Instruments - Information about Options (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-Based Payment Arrangement [Abstract]
Intrinsic value of options exercised	$ 1,190	$ 1,476	$ 403
Fair value of options that vested	0	0	0
Total compensation costs for options recognized in expense	0	0	0
Total tax benefit recognized in income related to compensation costs for options	0	0	0
Excess tax benefit recognized in income	$ 0	$ 0	$ 0

Stock Options and Other Equit_7

Stock Options and Other Equity-Based Incentive Instruments - Restricted Stock Unit (RSU) Activity (Detail) - Restricted Stock Units (RSUs)	12 Months Ended
	Dec. 31, 2022 $ / shares 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, beginning balance (in shares)	103,517
RSUs granted (in shares)	84,278
Additional market plus service condition RSUs vested (in shares)	0
RSUs added through dividend credits (in shares)	2,896
RSUs released through vesting (in shares)	(50,076)
RSUs forfeited/expired (in shares)	(1,421)
Outstanding, ending balance (in shares)	139,194
RSUs granted, weighted average fair value on date of grant (in USD per share) | $ / shares	$ 44
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, beginning balance (in shares)	99,763
RSUs granted (in shares)	37,877
Additional market plus service condition RSUs vested (in shares)	4,740
RSUs added through dividend credits (in shares)	0
RSUs released through vesting (in shares)	(26,338)
RSUs forfeited/expired (in shares)	(1,561)
Outstanding, ending balance (in shares)	114,481
RSUs granted, weighted average fair value on date of grant (in USD per share) | $ / shares	$ 40.74

Stock Options and Other Equit_8

Stock Options and Other Equity-Based Incentive Instruments - Summary of Compensation Costs and Excess Tax Benefits for RSUs (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Service Condition Vesting RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation costs for RSUs recognized in income	$ 2,883,000	$ 1,728,000	$ 1,390,000
Excess tax benefit recognized in income Service condition vesting RSUs	1,079,000	626,000	372,000
Market Plus Service Condition Vesting RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation costs for RSUs recognized in income	986,000	910,000	646,000
Excess tax benefit recognized in income Service condition vesting RSUs	$ 355,000	$ 226,000	$ 194,000

Non-interest Income and Expen_3

Non-interest Income and Expense - Components of Other Noninterest Income (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									$ 49,765	$ 43,948	$ 37,981
Asset management and commission income									3,986	3,668	2,989
Increase in cash value of life insurance									2,858	2,775	2,949
Gain on sale of loans									2,342	9,580	9,122
Lease brokerage income									820	746	668
Sale of customer checks									1,167	459	414
Gain on sale of investment securities									0	0	7
Gain (loss) on marketable equity securities									(340)	(86)	64
Other									2,448	2,574	1,000
Total other noninterest income									13,281	19,716	17,213
Total noninterest income	$ 15,880	$ 15,640	$ 16,430	$ 15,096	$ 16,502	$ 15,095	$ 15,957	$ 16,110	63,046	63,664	55,194
ATM and interchange fees
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									26,767	25,356	21,660
Service charges on deposit accounts
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									16,536	14,013	13,944
Other service fees
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									4,274	3,570	3,156
Mortgage banking service fees
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									1,887	1,881	1,855
Change in value of mortgage loan servicing rights
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									$ 301	$ (872)	$ (2,634)

Non-interest Income and Expen_4

Non-interest Income and Expense - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Income and Expenses [Abstract]
Mortgage loan servicing fees, net of change in fair value of mortgage loan servicing rights	$ 2,188	$ 1,009	$ 779

Non-interest Income and Expen_5

Non-interest Income and Expense - Components of Noninterest Expense (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Income and Expenses [Abstract]
Base salaries, net of deferred loan origination costs									$ 84,861	$ 69,844	$ 70,164
Incentive compensation									17,908	14,957	10,022
Benefits and other compensation costs									27,083	21,550	31,935
Total salaries and benefits expense									129,852	106,351	112,121
Occupancy									15,493	14,910	14,528
Data processing and software									14,660	13,985	13,504
Equipment									5,733	5,358	5,704
ATM and POS network charges									6,984	6,040	5,433
Merger and acquisition expense									6,253	1,523	0
Advertising									3,694	2,899	2,827
Professional fees									4,392	3,657	3,222
Intangible amortization									6,334	5,464	5,724
Telecommunications									2,298	2,253	2,601
Regulatory assessments and insurance									3,142	2,581	1,594
Courier service									2,013	1,214	1,414
Operational losses									1,000	964	1,168
Postage									1,147	710	1,068
Gain on sale or acquisition of foreclosed assets									(481)	(233)	(235)
(Gain) loss on disposal of fixed assets									(1,070)	(439)	67
Other miscellaneous expense									15,201	11,038	12,018
Total other noninterest expense									86,793	71,924	70,637
Total noninterest expense	$ 59,469	$ 54,465	$ 56,264	$ 46,447	$ 46,679	$ 45,807	$ 44,171	$ 41,618	$ 216,645	$ 178,275	$ 182,758

Income Taxes - Components of Co

Income Taxes - Components of Consolidated Income Tax Expense (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current tax expense
Federal									$ 34,155	$ 28,763	$ 22,104
State									22,355	18,221	14,586
Current tax expense, Total									56,510	46,984	36,690
Deferred tax expense
Federal									(5,224)	(872)	(9,500)
State									(2,798)	(64)	(4,654)
Deferred tax benefit, Total									(8,022)	(936)	(14,154)
Total tax expense	$ 14,723	$ 14,148	$ 11,748	$ 7,869	$ 10,404	$ 11,534	$ 10,767	$ 13,343	$ 48,488	$ 46,048	$ 22,536

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Taxes (Textual) [Abstract]
Carrying value of low income housing tax credit funds	$ 90,956	$ 41,295
Low income housing tax credit fund commitments	65,285
Proceeds from income tax refunds	805
Tax credits	852	$ 513
Federal
Income Taxes (Textual) [Abstract]
Net operating loss carryforwards	5,518
Tax credits	395
California
Income Taxes (Textual) [Abstract]
Net operating loss carryforwards	11,187
Tax credits	$ 648

Income Taxes - Schedule of Comp

Income Taxes - Schedule of Components of Investments in Qualified Affordable Housing Projects (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Tax credits and other tax benefits – decrease in tax expense	$ (6,370)	$ (4,224)	$ (4,200)
Amortization – increase in tax expense	$ 6,178	$ 3,604	$ 3,581

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Effective Tax Rate and Statutory Federal Income Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Federal statutory income tax rate	21%	21%	21%
State income taxes, net of federal tax benefit	7.90%	7.90%	7.70%
Tax-exempt interest on municipal obligations	(0.70%)	(0.50%)	(0.90%)
Tax-exempt life insurance related income	(0.40%)	(0.50%)	(0.80%)
Low income housing tax credits	(3.70%)	(2.60%)	(4.80%)
Low income housing tax credit amortization	3.60%	2.20%	4.10%
Equity compensation	(0.20%)	(0.10%)	0.40%
Non-deductible merger expenses	0.10%	0.10%	0%
Other	0.30%	0.60%	(0.90%)
Effective Tax Rate	27.90%	28.10%	25.80%

Income Taxes - Company's Net De

Income Taxes - Company's Net Deferred Tax Asset Recorded in Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Allowance for losses and reserve for unfunded commitments	$ 32,519	$ 26,361
Deferred compensation	1,696	1,758
Other accrued expenses	2,720	1,994
Additional unfunded status of the supplemental retirement plans	16,036	13,693
Operating lease liability	8,575	7,769
State taxes	3,649	3,251
Share based compensation	1,132	952
Nonaccrual interest	643	937
Acquisition cost basis	14,640	506
Unrealized loss on securities	85,897	116
Tax credits	852	513
Net operating loss carryforwards	2,098	1,131
Other	120	813
Total deferred tax assets	170,577	59,794
Deferred tax liabilities:
Securities income	(777)	(762)
Depreciation	(8,270)	(6,198)
Right of use asset	(7,941)	(7,588)
Funded pension liability	(4,110)	(709)
Securities accretion	(1,265)	(846)
Mortgage servicing rights valuation	(1,976)	(1,726)
Core deposit intangible	(4,778)	(3,248)
Junior subordinated debt	(1,293)	(1,422)
Prepaid expenses and other	(991)	(488)
Total deferred tax liability	(31,401)	(22,987)
Net deferred tax asset	$ 139,176	$ 36,807

Earnings per Share - Computatio

Earnings per Share - Computation of Earnings Per Share (Detail) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net income	$ 36,343	$ 37,338	$ 31,364	$ 20,374	$ 28,222	$ 27,422	$ 28,362	$ 33,649	$ 125,419	$ 117,655	$ 64,814
Average number of common shares outstanding (in shares)									32,584	29,721	29,917
Effect of dilutive stock options and restricted stock (in shares)									137	161	111
Average number of common shares outstanding used to calculate diluted earnings per share (in shares)									32,721	29,882	30,028
Options excluded from diluted earnings per share because the effect of these options was antidilutive (in shares)									0	0	0

Comprehensive Income (Loss) - C

Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) and Related Tax Effects (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications, before tax	$ 0	$ 0	$ (7)
Other comprehensive income (loss)	(194,886)	(11,299)	17,502
Net unrealized loss on available for sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
OCI, before reclassifications, before tax	(290,157)	(19,575)	15,803
Reclassifications, before tax	0	0	(7)
OCI, after reclassifications, before tax	(290,157)	(19,575)	15,796
Tax effect	85,781	5,787	(4,670)
Other comprehensive income (loss)	(204,376)	(13,788)	11,126
Unfunded status of the supplemental retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
OCI, before reclassifications, before tax	11,522	3,497	645
Reclassifications, before tax	(20)	196	9,254
OCI, after reclassifications, before tax	11,502	3,693	9,899
Tax effect	(3,401)	(1,091)	(2,927)
Other comprehensive income (loss)	8,101	2,602	6,972
Amortization of prior service cost
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications, before tax	(28)	(58)	(55)
Amortization of actuarial losses
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications, before tax	8	254	9,309
Joint beneficiary agreement liability, net of tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
OCI, before reclassifications, before tax	1,389	(113)	(596)
Tax effect	0	0	0
OCI, before reclassifications, net of tax	$ 1,389	$ (113)	$ (596)

Comprehensive Income (Loss) -_2

Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of tax	$ (193,905)	$ 981
Net unrealized loss on available for sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), before tax	(290,549)	(392)
Tax effect	85,897	116
Accumulated other comprehensive income (loss), net of tax	(204,652)	(276)
Unfunded status of the supplemental retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), before tax	13,901	2,399
Tax effect	(4,110)	(709)
Accumulated other comprehensive income (loss), net of tax	9,791	1,690
Joint beneficiary agreement liability, net of tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), before tax	$ 956	$ (433)

Retirement Plans - Additional I

Retirement Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Employee service period under ESOP	1 year
Deferred compensation obligations	$ 5,738	$ 5,945
Cash values of the insurance policies purchased to fund deferred compensation obligations	133,742	117,857	$ 118,870
Funded status of the supplemental retirement plans	(13,901)	(2,399)
AOCI, defined benefit plan, after tax	(9,792)	(1,690)
Amortization of actuarial losses	$ 455
401(k) Plan
Defined Benefit Plan Disclosure [Line Items]
Minimum age for employees	21 years
Minimum period for employees to participate	90 days
Discretionary matching contribution equal to percentage of participant's contribution	50%
Discretionary matching contribution maximum percentage of eligible compensation	4%
Supplemental Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
Cash values of the insurance policies purchased to fund deferred compensation obligations	$ 133,742	117,857
Funded status of the supplemental retirement plans	13,901	2,399
AOCI, defined benefit plan, after tax	9,792	1,690
Deferred tax liability	$ (4,109)	$ (709)

Retirement Plans - Summary of 4

Retirement Plans - Summary of 401(k) Contribution Plan (Detail) - 401(k) Plan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
401(k) Plan benefits expense	$ 1,541	$ 1,211	$ 1,139
401(k) Plan contributions made by the Company	$ 1,214	$ 1,121	$ 202

Retirement Plans - Summary of E

Retirement Plans - Summary of ESOP Activities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Retirement Benefits [Abstract]
ESOP benefits expense	$ 2,824	$ 1,888	$ 2,400
ESOP contributions made by the Company	$ 3,535	$ 878	$ 1,951

Retirement Plans - Schedule of

Retirement Plans - Schedule of Deferred Compensation Earnings Credits Included in Noninterest Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Retirement Benefits [Abstract]
Deferred compensation earnings credits included in non-interest expense	$ 187	$ 176	$ 212

Retirement Plans - Defined Bene

Retirement Plans - Defined Benefit Pension Plans (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Retirement Benefits [Abstract]
Transition obligation	$ 0	$ 0
Prior service cost	0	(28)
Net actuarial (gain) / loss	(13,901)	(2,371)
Amount included in accumulated other comprehensive income (loss)	(13,901)	(2,399)
Deferred tax liability / (benefit)	4,109	709
Amount included in accumulated other comprehensive income (loss), net of tax	$ (9,792)	$ (1,690)

Retirement Plans - Information

Retirement Plans - Information Pertaining to Activity in Supplemental Retirement Plans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Change in benefit obligation:
Benefit obligation at beginning of year	$ (43,834)	$ (46,197)
Acquisition of obligations	(3,310)	0
Service cost	(1,624)	(1,103)	$ (2,830)
Interest cost	(1,731)	(1,518)	(1,224)
Actuarial (loss)/gain	10,266	3,580
Plan amendments	(2,141)	0
Benefits paid	2,033	1,404
Benefit obligation at end of year	(40,341)	(43,834)	$ (46,197)
Change in plan assets:
Fair value of plan assets at beginning of year	0
Fair value of plan assets at end of year	0	0
Funded status	(40,341)	(43,834)
Unrecognized net obligation existing at January 1, 1986	0	0
Unrecognized net actuarial (loss)/gain	(13,901)	(2,453)
Unrecognized prior service cost	0	(28)
Accumulated other comprehensive loss	13,901	2,481
Accrued benefit cost	(40,341)	(43,834)
Accumulated benefit obligation	$ (40,340)	$ (42,590)

Retirement Plans - Net Periodic

Retirement Plans - Net Periodic Benefit Cost Recognized for Supplemental Retirement Plans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net pension cost included the following components:
Service cost-benefits earned during the period	$ 1,624	$ 1,103	$ 2,830
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Interest cost on projected benefit obligation	$ 1,731	$ 1,518	$ 1,224
Amortization of net obligation at transition	$ 0	$ 0	$ 1
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Amortization of prior service cost	$ (28)	$ (58)	$ (55)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Immediate Recognition of Actuarial Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Recognized net actuarial loss	$ 86	$ (254)	$ (9,309)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Recognized net actuarial loss	$ (114)	$ 0	$ 0
Recognition of pension service cost to due amendment	2,141	0	0
Net periodic pension cost	$ 5,268	$ 2,817	$ 13,309

Retirement Plans - Assumptions

Retirement Plans - Assumptions Used in Accounting for Plans (Detail)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Discount rate used to calculate benefit obligation	5.23%	2.74%	2.40%
Discount rate used to calculate net periodic pension cost	2.74%	2.40%	2.82%
Executive Compensation
Defined Benefit Plan Disclosure [Line Items]
Average annual increase in compensation	0%	3.25%	3.25%
Director Compensation
Defined Benefit Plan Disclosure [Line Items]
Average annual increase in compensation	0%	0%	0%

Retirement Plans - Expected Ben

Retirement Plans - Expected Benefit Payments to Participants and Estimated Contributions to be Made by Company (Detail) $ in Thousands	Dec. 31, 2022 USD ($)
Expectged Benefit Payments To Participants [Roll Forward]
2023	$ 1,914
2024	3,017
2025	2,988
2026	3,076
2027	2,974
2028-2032	18,981
Estimated Company Contributions [Roll Forward]
2023	1,914
2024	3,017
2025	2,988
2026	3,076
2027	2,974
2028-2032	$ 18,981

Related Party Transactions - Su

Related Party Transactions - Summary of Activity in Lending Transactions (Detail) - Directors and Officers - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Beginning balance	$ 6,316	$ 6,833
Advances/new loans	11,960	2,000
Removed/payments	(6,892)	(2,517)
Ending balance	$ 11,384	$ 6,316

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Related Party Transactions [Abstract]
Bank deposits of directors, officers and other related parties	$ 28,355	$ 35,310

Fair Value Measurement - Record

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	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 2,463,594	$ 2,220,216
Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,598	2,938
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	1,372,769	1,257,389
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	293,205	192,244
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,751	6,756
Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	439,767	409,552
Non-agency collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	340,946	341,997
Loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	1,846	3,466
Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	6,712	5,874
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,598	2,938
Level 1 | Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,598	2,938
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 collateralized mortgage obligations
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	2,454,284	2,211,404
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	1,372,769	1,257,389
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	293,205	192,244
Level 2 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,751	6,756
Level 2 | Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	439,767	409,552
Level 2 | Non-agency collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	340,946	341,997
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	1,846	3,466
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	6,712	5,874
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 collateralized mortgage obligations
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	$ 6,712	$ 5,874

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Transfers between any fair value levels	$ 0	$ 0
Carrying value of loans fully charged-off	$ 0

Fair Value Measurement - Reconc

Fair Value Measurement - Reconciliation of Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs on Recurring Basis (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 5,874
Ending Balance		$ 5,874
Mortgage servicing rights
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	5,874	5,092	$ 6,200
Transfers into (out of) Level 3	0	0	0
Change Included in Earnings	301	(872)	(2,634)
Issuances	537	1,654	1,526
Ending Balance	$ 6,712	$ 5,874	$ 5,092

Fair Value Measurement - Quanti

Fair Value Measurement - Quantitative Information about Recurring Fair Value Measurements (Detail) - Mortgage servicing rights $ in Thousands	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 6,712	$ 5,874	$ 5,092	$ 6,200
Minimum | Constant prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Constant prepayment rate	1.16	1.87
Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Constant prepayment rate	0.10	0.10
Maximum | Constant prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Constant prepayment rate	2.26	2.64
Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Constant prepayment rate	0.14	0.14
Weighted Average | Constant prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Constant prepayment rate	1.27	2.08
Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Constant prepayment rate	0.12	0.12

Fair Value Measurement - Assets

Fair Value Measurement - Assets and Liabilities Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Individually evaluated loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 5,719	$ 3,683
Fair Value Nonrecurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	6,030
Total Gains (Losses)	(1,802)
Fair Value Nonrecurring Basis | Individually evaluated loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,719	3,683
Total Gains (Losses)	(2,283)	(1,105)
Fair Value Nonrecurring Basis | Real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	311
Total Gains (Losses)	481
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
Fair Value Nonrecurring Basis | Level 1 | Individually evaluated 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 | Real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	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
Fair Value Nonrecurring Basis | Level 2 | Individually evaluated 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 | Real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	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	6,030
Fair Value Nonrecurring Basis | Level 3 | Individually evaluated loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,719	$ 3,683
Fair Value Nonrecurring Basis | Level 3 | Real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 311

Fair Value Measurement - Quan_2

Fair Value Measurement - Quantitative Information about Fair Value Measurements for Financial Instruments Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Individually evaluated loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 5,719	$ 3,683
Real estate owned | Residential Real Estate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 311

Fair Value Measurement - Estima

Fair Value Measurement - Estimated Fair Values of Financial Instruments that are Reported at Amortized Cost in Consolidated Balance Sheets (Detail) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Financial assets:
Cash and due from banks	$ 96,323,000	$ 57,032,000
Cash at Federal Reserve and other banks	10,907,000	711,389,000
Securities held to maturity	160,983,000	199,759,000
Restricted equity securities	0	0
Financial liabilities:
Other borrowings	264,605,000	50,087,000
Junior subordinated debt	101,040,000	58,079,000
Level 3 | Overdraft privilege commitments
Off-balance sheet:
Contract amount, Off-balance sheet	126,634,000	125,670,000
Level 3 | Standby letters of credit
Off-balance sheet:
Contract amount, Off-balance sheet	26,599,000	21,871,000
Level 3 | Commitments
Off-balance sheet:
Contract amount, Off-balance sheet	2,188,560,000	1,586,068,000
Fair Value | Level 1
Financial assets:
Cash and due from banks	96,323,000	57,032,000
Cash at Federal Reserve and other banks	10,907,000	711,389,000
Fair Value | Level 2
Financial assets:
Securities held to maturity	149,938,000	208,140,000
Financial liabilities:
Deposits	8,321,517,000	7,366,422,000
Other borrowings	264,605,000	50,087,000
Fair Value | Level 3
Financial assets:
Loans, net	6,153,155,000	4,880,044,000
Financial liabilities:
Junior subordinated debt	92,613,000	57,173,000
Fair Value | Level 3 | Overdraft privilege commitments
Off-balance sheet:
Fair value, Off-balance sheet	1,266,000	1,257,000
Fair Value | Level 3 | Standby letters of credit
Off-balance sheet:
Fair value, Off-balance sheet	266,000	219,000
Fair Value | Level 3 | Commitments
Off-balance sheet:
Fair value, Off-balance sheet	21,886,000	15,861,000
Carrying Amount | Level 1
Financial assets:
Cash and due from banks	96,323,000	57,032,000
Cash at Federal Reserve and other banks	10,907,000	711,389,000
Carrying Amount | Level 2
Financial assets:
Securities held to maturity	160,983,000	199,759,000
Restricted equity securities	17,250,000	17,250,000
Financial liabilities:
Deposits	8,329,013,000	7,367,159,000
Other borrowings	264,605,000	50,087,000
Carrying Amount | Level 3
Financial assets:
Loans, net	6,344,767,000	4,831,248,000
Financial liabilities:
Junior subordinated debt	$ 101,040,000	$ 58,079,000

TriCo Bancshares Condensed Fi_3

TriCo Bancshares Condensed Financial Statements (Parent Only) - Condensed Balance Sheets (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	$ 107,230	$ 768,421
Other assets	257,975	109,025
Total assets	9,930,986	8,614,787
Liabilities and shareholders’ equity
Other liabilities	159,741	112,070
Junior subordinated debt	101,040	58,079
Total liabilities	8,884,570	7,614,603
Shareholders’ equity:
Preferred stock, no par value: 1,000,000 shares authorized, zero issued and outstanding at December 31, 2020 and 2019	0	0
Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 33,331,513 and 29,730,424 at December 31, 2022 and 2021, respectively	697,448	532,244
Retained earnings	542,873	466,959
Accumulated other comprehensive income (loss), net	(193,905)	981
Total shareholders’ equity	1,046,416	1,000,184	$ 925,114	$ 893,587
Total liabilities and shareholders’ equity	9,930,986	8,614,787
Parent
Assets
Cash and cash equivalents	7,987	4,950
Investment in Tri Counties Bank	1,138,429	1,047,577
Other assets	1,818	6,073
Total assets	1,148,234	1,058,600
Liabilities and shareholders’ equity
Other liabilities	778	337
Junior subordinated debt	101,040	58,079
Total liabilities	101,818	58,416
Shareholders’ equity:
Preferred stock, no par value: 1,000,000 shares authorized, zero issued and outstanding at December 31, 2020 and 2019	0	0
Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 33,331,513 and 29,730,424 at December 31, 2022 and 2021, respectively	697,448	532,244
Retained earnings	542,873	466,959
Accumulated other comprehensive income (loss), net	(193,905)	981
Total shareholders’ equity	1,046,416	1,000,184
Total liabilities and shareholders’ equity	$ 1,148,234	$ 1,058,600

TriCo Bancshares Condensed Fi_4

TriCo Bancshares Condensed Financial Statements (Parent Only) - Condensed Balance Sheets (Parenthetical) (Detail) - $ / shares	Dec. 31, 2022	Dec. 31, 2021
Condensed Financial Statements, Captions [Line Items]
Preferred stock, par value (in dollars per share)	$ 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, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	33,331,513	29,730,424
Common stock, shares outstanding (in shares)	33,331,513	29,730,424

TriCo Bancshares Condensed Fi_5

TriCo Bancshares Condensed Financial Statements (Parent Only) - Condensed Statements of Income (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Net interest expense	$ (4,089)	$ (2,260)	$ (1,909)	$ (1,271)	$ (1,241)	$ (1,395)	$ (1,396)	$ (1,476)	$ (9,529)	$ (5,508)	$ (9,457)
Income before income taxes	51,066	51,486	43,112	28,243	38,626	38,956	39,129	46,992	173,907	163,703	87,350
Equity in net income of Tri Counties Bank:
Income tax benefit	(14,723)	(14,148)	(11,748)	(7,869)	(10,404)	(11,534)	(10,767)	(13,343)	(48,488)	(46,048)	(22,536)
Net income	$ 36,343	$ 37,338	$ 31,364	$ 20,374	$ 28,222	$ 27,422	$ 28,362	$ 33,649	125,419	117,655	64,814
Parent
Condensed Financial Statements, Captions [Line Items]
Net interest expense									(4,385)	(2,128)	(2,555)
Administration expense									(816)	(985)	(932)
Income before income taxes									(5,201)	(3,113)	(3,487)
Equity in net income of Tri Counties Bank:
Distributed									64,188	31,571	63,419
Undistributed									64,896	88,289	3,851
Income tax benefit									1,536	908	1,031
Net income									$ 125,419	$ 117,655	$ 64,814

TriCo Bancshares Condensed Fi_6

TriCo Bancshares Condensed Financial Statements (Parent Only) - Condensed Statements of Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Net income	$ 36,343	$ 37,338	$ 31,364	$ 20,374	$ 28,222	$ 27,422	$ 28,362	$ 33,649	$ 125,419	$ 117,655	$ 64,814
Other comprehensive income (loss), net of tax:
Increase (decrease) in unrealized gains on available for sale securities arising during the period									(204,376)	(13,788)	11,126
Change in minimum pension liability									8,101	2,602	6,972
Change in joint beneficiary agreement liability									1,389	(113)	(596)
Other comprehensive income (loss)									(194,886)	(11,299)	17,502
Comprehensive income (loss)									(69,467)	106,356	82,316
Parent
Condensed Financial Statements, Captions [Line Items]
Net income									125,419	117,655	64,814
Other comprehensive income (loss), net of tax:
Increase (decrease) in unrealized gains on available for sale securities arising during the period									(204,376)	(13,788)	11,126
Change in minimum pension liability									8,101	2,602	6,972
Change in joint beneficiary agreement liability									1,389	(113)	(596)
Other comprehensive income (loss)									(194,886)	(11,299)	17,502
Comprehensive income (loss)									$ (69,467)	$ 106,356	$ 82,316

TriCo Bancshares Condensed Fi_7

TriCo Bancshares Condensed Financial Statements (Parent Only) - Condensed Statements of Cash Flows (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net income	$ 125,419	$ 117,655	$ 64,814
Adjustments to reconcile net income to net cash provided by operating activities:
Equity compensation vesting expense	3,869	2,638	2,036
Net cash from operating activities	162,895	132,207	114,802
Investing activities:
Sales or maturities of investments	4,234	0	0
Financing activities:
Issuance of common stock through option exercise	1,190	144	198
Repurchase of common stock	(27,148)	(4,344)	(26,720)
Cash dividends paid — common	(35,797)	(29,724)	(26,303)
Net cash from financing activities	(100,862)	850,474	1,094,575
Net change in cash and cash equivalents	(661,191)	98,870	393,044
Cash and cash equivalents at beginning of year	768,421	669,551	276,507
Cash and cash equivalents at end of year	107,230	768,421	669,551
Parent
Operating activities:
Net income	125,419	117,655	64,814
Adjustments to reconcile net income to net cash provided by operating activities:
Undistributed equity in earnings of Tri Counties Bank	(64,896)	(88,289)	(3,851)
Equity compensation vesting expense	3,869	2,638	2,036
Net change in other assets and liabilities	(3,834)	(6,427)	(1,885)
Net cash from operating activities	60,558	25,577	61,114
Financing activities:
Issuance of common stock through option exercise	1,190	144	198
Repurchase of common stock	(27,148)	(4,344)	(26,720)
Cash dividends paid — common	(35,797)	(29,724)	(26,303)
Net cash from financing activities	(61,755)	(33,924)	(52,825)
Net change in cash and cash equivalents	3,037	(8,347)	8,289
Cash and cash equivalents at beginning of year	4,950	13,297	5,008
Cash and cash equivalents at end of year	$ 7,987	$ 4,950	$ 13,297

Regulatory Matters - Actual and

Regulatory Matters - Actual and Required Capital Ratios of Bank (Detail) $ in Thousands	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Parent
Schedule of Capitalization [Line Items]
Total Capital (to Risk Weighted Assets), Actual, Amount	$ 1,115,257	$ 893,294
Tier 1 Capital (to Risk Weighted Assets), Actual, Amount	974,325	820,654
Common Equity Tier 1 Capital (to Risk Weighted Assets), Actual, Amount	917,565	764,319
Tier 1 Capital (to Average Assets), Actual, Amount	$ 974,325	$ 820,654
Total Capital (to Risk Weighted Assets), Actual, Ratio	0.1419	0.1542
Tier 1 Capital (to Risk Weighted Assets), Actual, Ratio	0.1240	0.1417
Common Equity Tier 1 Capital (to Risk Weighted Assets), Actual, Ratio	0.1167	0.1319
Tier 1 Capital (to Average Assets), Actual, Ratio	0.1014	0.0988
Parent | Required for Capital Adequacy Purposes
Schedule of Capitalization [Line Items]
Total Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	$ 825,234	$ 608,258
Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	668,047	492,399
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	550,156	405,505
Tier 1 Capital (to Average Assets), Minimum Capital Requirement, Amount	$ 384,337	$ 332,205
Total Capital (to Risk Weighted Assets), Minimum Capital Requirement, Ratio	0.1050	0.1050
Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Ratio	0.0850	0.0850
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Ratio	7%	7%
Tier 1 Capital (to Average Assets), Minimum Capital Requirement, Ratio	0.0400	0.0400
Tri Counties Bank
Schedule of Capitalization [Line Items]
Total Capital (to Risk Weighted Assets), Actual, Amount	$ 1,107,941	$ 884,255
Tier 1 Capital (to Risk Weighted Assets), Actual, Amount	1,009,577	811,713
Common Equity Tier 1 Capital (to Risk Weighted Assets), Actual, Amount	1,009,577	811,713
Tier 1 Capital (to Average Assets), Actual, Amount	$ 1,009,577	$ 811,713
Total Capital (to Risk Weighted Assets), Actual, Ratio	0.1410	0.1528
Tier 1 Capital (to Risk Weighted Assets), Actual, Ratio	0.1285	0.1403
Common Equity Tier 1 Capital (to Risk Weighted Assets), Actual, Ratio	0.1285	0.1403
Tier 1 Capital (to Average Assets), Actual, Ratio	0.1051	0.0977
Total Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 785,751	$ 578,676
Tier 1 Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	628,601	462,941
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	510,738	376,140
Tier 1 Capital (to Average Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 480,183	$ 415,245
Total Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.1000	0.1000
Tier 1 Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0800	0.0800
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%
Tier 1 Capital (to Average Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0500	0.0500
Tri Counties Bank | Required for Capital Adequacy Purposes
Schedule of Capitalization [Line Items]
Total Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	$ 825,039	$ 607,610
Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	667,888	491,875
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	550,026	405,073
Tier 1 Capital (to Average Assets), Minimum Capital Requirement, Amount	$ 384,146	$ 332,196
Total Capital (to Risk Weighted Assets), Minimum Capital Requirement, Ratio	0.1050	0.1050
Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Ratio	0.0850	0.0850
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Ratio	7%	7%
Tier 1 Capital (to Average Assets), Minimum Capital Requirement, Ratio	0.0400	0.0400

Summary of Quarterly Results _3

Summary of Quarterly Results of Operations (unaudited) - Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Loans:
Discount accretion	$ 1,751	$ 714	$ 1,677	$ 1,323	$ 1,780	$ 2,034	$ 2,566	$ 1,712
All other loan interest income	80,005	75,242	68,241	56,422	59,024	58,691	57,738	58,724
Total loan interest income	81,756	75,956	69,918	57,745	60,804	60,725	60,304	60,436	$ 285,375	$ 242,269	$ 233,721
Debt securities, dividends and interest bearing cash at banks	21,233	20,410	17,037	11,450	10,220	8,903	8,175	7,480
Total interest and dividend income	102,989	96,366	86,955	69,195	71,024	69,628	68,479	67,916	355,505	277,047	267,184
Interest expense	4,089	2,260	1,909	1,271	1,241	1,395	1,396	1,476	9,529	5,508	9,457
Net interest income	98,900	94,106	85,046	67,924	69,783	68,233	67,083	66,440	345,976	271,539	257,727
Provision for (benefit from reversal of) credit losses	4,245	3,795	2,100	8,330	980	(1,435)	(260)	(6,060)	18,470	(6,775)	42,813
Net interest income after provision for (benefit from) credit losses	94,655	90,311	82,946	59,594	68,803	69,668	67,343	72,500	327,506	278,314	214,914
Noninterest income	15,880	15,640	16,430	15,096	16,502	15,095	15,957	16,110	63,046	63,664	55,194
Total noninterest expense	59,469	54,465	56,264	46,447	46,679	45,807	44,171	41,618	216,645	178,275	182,758
Income before income taxes	51,066	51,486	43,112	28,243	38,626	38,956	39,129	46,992	173,907	163,703	87,350
Income tax expense	14,723	14,148	11,748	7,869	10,404	11,534	10,767	13,343	48,488	46,048	22,536
Net income	$ 36,343	$ 37,338	$ 31,364	$ 20,374	$ 28,222	$ 27,422	$ 28,362	$ 33,649	$ 125,419	$ 117,655	$ 64,814
Per common share:
Net income (diluted) (in USD per share)	$ 1.09	$ 1.12	$ 0.93	$ 0.67	$ 0.94	$ 0.92	$ 0.95	$ 1.13	$ 3.83	$ 3.94	$ 2.16
Dividends paid (in dollars per share)	$ 0.30	$ 0.30	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 1.20	$ 1	$ 0.88