TriCo Bancshares (TCBK) 10-K 1 Mar 22 2021 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Feb. 22, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Period End Date	Dec. 31, 2021
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			$ 1,213,065
Entity Common Stock, Shares Outstanding		29,730,424
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 19, 2022, 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	2021
Document Fiscal Period Focus	FY
Entity Central Index Key	0000356171
Entity Registrant Name	TriCo Bancshares

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2021
Audit Information [Abstract]
Auditor Name	Moss Adams LLP
Auditor Location	Sacramento, California
Auditor Firm ID	659

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets:
Cash and due from banks	$ 57,032	$ 77,253
Cash at Federal Reserve and other banks	711,389	592,298
Cash and cash equivalents	768,421	669,551
Investment securities:
Marketable equity securities	2,938	3,025
Available for sale debt securities	2,207,938	1,414,264
Held to maturity debt securities	199,759	284,563
Restricted equity securities	17,250	17,250
Loans held for sale	3,466	6,268
Loans	4,916,624	4,763,127
Allowance for credit losses	(85,376)	(91,847)
Total loans, net	4,831,248	4,671,280
Premises and equipment, net	78,687	83,731
Cash value of life insurance	117,857	118,870
Accrued interest receivable	19,292	20,004
Goodwill	220,872	220,872
Other intangible assets, net	12,369	17,833
Operating leases, right-of-use	25,665	27,846
Other assets	109,025	84,172
Total assets	8,614,787	7,639,529
Deposits:
Noninterest-bearing demand	2,979,882	2,581,517
Interest-bearing	4,387,277	3,924,417
Total deposits	7,367,159	6,505,934
Accrued interest payable	928	1,362
Operating lease liability	26,280	27,973
Other liabilities	112,070	94,597
Other borrowings	50,087	26,914
Junior subordinated debt	58,079	57,635
Total liabilities	7,614,603	6,714,415
Commitments and contingencies
Shareholders’ equity:
Preferred stock, no par value: 1,000,000 shares authorized; zero issued and outstanding at December 31, 2021 and 2020	0	0
Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 29,730,424 and 29,727,214 at December 31, 2021 and 2020, respectively	532,244	530,835
Retained earnings	466,959	381,999
Accumulated other comprehensive income, net of tax	981	12,280
Total shareholders’ equity	1,000,184	925,114
Total liabilities and shareholders’ equity	$ 8,614,787	$ 7,639,529

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, no 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, no 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)	29,730,424	29,727,214
Common stock, shares outstanding (in shares)	29,730,424	29,727,214

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest and dividend income:
Loans, including fees	$ 242,269	$ 233,721	$ 223,750
Investments:
Taxable securities	29,361	27,627	39,810
Tax exempt securities	3,568	3,566	4,002
Dividends	991	1,032	1,285
Interest bearing cash at Federal Reserve and other banks	858	1,238	3,597
Total interest and dividend income	277,047	267,184	272,444
Interest expense:
Deposits	3,318	6,885	11,716
Other borrowings	22	17	387
Junior subordinated debt	2,168	2,555	3,272
Total interest expense	5,508	9,457	15,375
Net interest income	271,539	257,727	257,069
Provision for (benefit from) credit losses	(6,775)	42,813	(1,690)
Net interest income after provision for (benefit from) credit losses	278,314	214,914	258,759
Noninterest income:
Service charges and fees	43,948	37,981	40,417
Commissions on sale of non-deposit investment products	3,668	2,989	2,877
Increase in cash value of life insurance	2,775	2,949	3,029
Gain on sale of loans	9,580	9,122	3,282
Gain on sale of investment securities	0	7	110
Other	3,693	2,146	3,805
Total noninterest income	63,664	55,194	53,520
Noninterest expense:
Salaries and related benefits	106,351	112,121	106,065
Other	71,924	70,637	79,392
Total noninterest expense	178,275	182,758	185,457
Income before income taxes	163,703	87,350	126,822
Provision for income taxes	46,048	22,536	34,750
Net income	$ 117,655	$ 64,814	$ 92,072
Earnings per share:
Basic (in USD per share)	$ 3.96	$ 2.17	$ 3.02
Diluted (in USD per share)	$ 3.94	$ 2.16	$ 3

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 28,222	$ 27,422	$ 28,362	$ 33,649	$ 23,657	$ 17,606	$ 7,430	$ 16,121	$ 117,655	$ 64,814	$ 92,072
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on available for sale securities arising during the period, after reclassifications									(13,788)	11,126	17,159
Change in minimum pension liability, after reclassifications									2,602	6,972	(4,502)
Change in joint beneficiary agreement liability									(113)	(596)	0
Other comprehensive income (loss)									(11,299)	17,502	12,657
Comprehensive income									$ 106,356	$ 82,316	$ 104,729

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Common StockCumulative Effect, Period of Adoption, Adjusted Balance	Retained Earnings	Retained EarningsCumulative Effect, Period of Adoption, Adjustment	Retained EarningsCumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (loss)	Accumulated Other Comprehensive Income (loss)Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning balance at Dec. 31, 2018	$ 827,373			$ 541,762		$ 303,490			$ (17,879)
Beginning balance (in shares) at Dec. 31, 2018				30,417,223
Net income	92,072					92,072
Other comprehensive income (loss)	12,657								12,657
Service condition RSU vesting	1,161			$ 1,161
Market plus service condition RSU vesting	493			493
Stock options exercised	2,921			$ 2,921
Stock options exercised (in shares)				182,500
Service condition RSUs released (in shares)				33,060
Tax benefit from release of service condition RSUs (in shares)				22,237
Repurchase of common stock	$ (5,108)			$ (2,339)		(2,769)
Repurchase of common stock (in shares)	0			(131,196)
Dividends paid	$ (24,999)					(24,999)
Accounting Standards Update [Extensible Enumeration]	ASU 2016-13
Ending balance at Dec. 31, 2019	$ 906,570	$ (12,983)	$ 893,587	$ 543,998	$ 543,998	367,794	$ (12,983)	$ 354,811	(5,222)	$ (5,222)
Ending balance (in shares) at Dec. 31, 2019				30,523,824	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			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			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

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends paid (in USD per share)	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.22	$ 0.22	$ 0.22	$ 0.22	$ 1	$ 0.88	$ 0.82

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net income	$ 117,655	$ 64,814	$ 92,072
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of premises and equipment, and amortization	6,363	6,453	6,915
Amortization of intangible assets	5,464	5,724	5,723
Provision for (benefit from) credit losses	(6,775)	42,813	(1,690)
Amortization of investment securities premium, net	6,685	2,669	2,547
Gain on sale of investment securities	0	(7)	(110)
Originations of loans for resale	(217,210)	(227,831)	(131,074)
Proceeds from sale of loans originated for resale	227,938	234,424	131,689
Gain on sale of loans	(9,580)	(9,122)	(3,282)
Change in market value of mortgage servicing rights	872	2,634	1,811
Provision for (reversal of) losses on real estate owned	0	128	(102)
Deferred income tax expense	(936)	(14,154)	1,692
Gain on sale or transfer of loans, to real estate owned	(233)	(235)	(608)
Operating lease payments	(4,964)	(4,927)	(4,931)
(Gain) loss on disposal of fixed assets	(439)	67	82
Increase in cash value of life insurance	(2,775)	(2,949)	(3,029)
Gain on life insurance death benefit	(702)	(498)	(831)
(Gain) loss on marketable equity securities	86	(64)	(86)
Equity compensation vesting expense	2,638	2,036	1,654
Change in value of other real estate	9	0	0
Change in:
Interest receivable	712	(1,107)	515
Interest payable	(434)	(1,045)	410
Amortization of operating lease right of use asset	5,452	5,393	4,592
Other assets and liabilities, net	2,381	9,586	(1,153)
Net cash from operating activities	132,207	114,802	102,806
Investing activities:
Proceeds from maturities of securities available for sale	371,632	167,515	97,993
Proceeds from maturities of securities held to maturity	83,929	89,858	68,346
Proceeds from sale of available for sale securities	0	229	127,066
Purchases of securities available for sale	(1,190,690)	(617,552)	(37,253)
Net redemption of restricted equity securities	0	0	0
Loan origination and principal collections, net	(45,812)	(415,415)	(286,339)
Loans purchased	(108,433)	(41,126)	0
Proceeds from sale of real estate owned	1,526	570	1,336
Proceeds from sale of premises and equipment	2,743	0	0
Purchases of premises and equipment	(3,196)	(2,812)	(4,293)
Life insurance proceeds	4,490	2,400	3,355
Net cash from investing activities	(883,811)	(816,333)	(29,789)
Financing activities:
Net change in deposits	861,225	1,138,940	528
Net change in other borrowings	23,173	8,460	2,615
Repurchase of common stock, net	(4,344)	(26,720)	(2,196)
Dividends paid	(29,724)	(26,303)	(24,999)
Exercise of stock options, net	144	198	9
Net cash from financing activities	850,474	1,094,575	(24,043)
Net change in cash and cash equivalents	98,870	393,044	48,974
Cash and cash equivalents at beginning of year	669,551	276,507	227,533
Cash and cash equivalents at end of year	768,421	669,551	276,507
Supplemental disclosure of noncash activities:
Unrealized gain (loss) on securities available for sale	(19,575)	15,796	24,361
Loans transferred to foreclosed assets	1,052	766	1,249
Market value of shares tendered in-lieu of cash to pay for exercise of options and/or related taxes	2,118	736	5,108
Obligations incurred in conjunction with leased assets	2,883	4,161	156
Supplemental disclosure of cash flow activity:
Cash paid for interest expense	5,942	10,502	14,965
Cash paid for income taxes	$ 46,300	$ 29,500	$ 35,050

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
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 31 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 $1,744,000 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, 2021 and 2020, the Company recognized net unrealized gains of $718,000 and losses of $64,000, 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 ("AFS") or held to maturity ("HTM"). 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, 2021. 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, 2021, 2020 and 2019. 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, 2021, 2020 or 2019. 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, 2021, 2020 or 2019. 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 On January 1, 2020, the Company adopted ASU 2016-03 Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which replaces 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 Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost and off-balance sheet credit exposures. As a result, the Company recognized an increase in the ACL for loans totaling $18,913,000, including a reclassification of $481,000 from discounts on acquired loans to the allowance for credit losses, as a cumulative effect adjustment from change in accounting policies, with a corresponding decrease in retained earnings, net of $5,449,000 in taxes of $12,983,000. 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. 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 fifteen • 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 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 presen

New Accounting Pronouncements

New Accounting Pronouncements	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements Accounting Standards Adopted in 2021 On January 1, 2021, the Company adopted ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. This ASU simplified the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The guidance also promoted consistent application and simplification of GAAP for other areas of Topic 740 by clarifying and amending existing guidance. ASU 2019-12 did not have a significant impact on the Company’s consolidated financial statements. On January 1, 2021, the Company adopted ASU No. 2020-10, "Codification Improvements" to address suggestions received from stakeholders on the Accounting Standards Codification and to make other incremental improvements to GAAP. ASU 2020-10 did not have a significant impact on the Company’s consolidated financial statements. In August 2021, FASB issued ASU 2021-06, Presentation of Financial Statements (Topic 205), Financial Services—Depository and Lending (Topic 942), and Financial Services—Investment Companies (Topic 946): Amendments to SEC Paragraphs Pursuant to SEC Final Rule Releases No. 33-10786, Amendments to Financial Disclosures about Acquired and Disposed Businesses, and No. 33-10835, Update of Statistical Disclosures for Bank and Savings and Loan Registrants. This ASU updates certain GAAP annual and interim disclosure requirements to conform with SEC disclosure updates to Guide 3 "Statistical Disclosure by Bank Holding Companies.” Amendments in this ASU were effective for the Company's annual disclosures for fiscal year ending December 31, 2021. The Company's existing annual disclosure report (10-K) largely complied with the impacted updates to Guide 3 requirements, with limited changes made to Management's Discussion and Analysis section of the 10-K. Accounting Standards Pending Adoption 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. The amendments in this Update apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The election to apply the optional relief for existing fair value and cash flow hedge accounting relationships may be made on a hedge-by-hedge basis and across multiple reporting periods. Amendments in this ASU are effective for the Company through December 31, 2022. 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.

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2021
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, 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 754,185 2,354 (4,990) 751,549 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 was no allowance for credit losses recorded for the held to maturity debt portfolio as of or for the years ended December 31, 2021 and 2020. December 31, 2020 Amortized Gross Gross Estimated (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 795,555 $ 17,710 $ (891) $ 812,374 Obligations of states and political subdivisions 123,347 5,748 — 129,095 Corporate bonds 2,459 85 — 2,544 Asset backed securities 473,720 1,682 (5,151) 470,251 Total debt securities available for sale $ 1,395,081 $ 25,225 $ (6,042) $ 1,414,264 Debt Securities Held to Maturity Obligations of U.S. government agencies $ 273,667 $ 13,774 $ — $ 287,441 Obligations of states and political subdivisions 10,896 389 — 11,285 Total debt securities held to maturity $ 284,563 $ 14,163 $ — $ 298,726 There were no sales of debt securities during the year ended December 31, 2021. During 2020, proceeds from sales of debt securities were $229,000, resulting in a gross gains of $7,000. Investment securities with an aggregate carrying value of $423,892,000 and $429,049,000 at December 31, 2021 and 2020, 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, 2021 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, 2021, obligations of U.S. government and agencies with an amortized cost basis totaling $1,254,790,000 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, 2021, the Company estimates the average remaining life of these mortgage-backed securities issued by U.S. government corporations and agencies to be approximately 4.88 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 $ 7,601 $ 7,645 $ — $ — Due after one year through five years 131,657 130,955 1,766 1,890 Due after five years through ten years 341,925 342,606 16,612 17,090 Due after ten years 1,727,147 1,726,732 181,381 189,160 Totals $ 2,208,330 $ 2,207,938 $ 199,759 $ 208,140 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, 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 389,837 (4,118) 109,748 (872) 499,585 (4,990) Total debt securities available for sale $ 1,393,098 $ (14,640) $ 153,834 $ (2,165) $ 1,546,932 $ (16,805) Less than 12 months 12 months or more Total Fair Unrealized Fair Unrealized Fair Unrealized December 31, 2020 (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 160,543 $ (891) $ — $ — $ 160,543 $ (891) Obligations of states and political subdivisions — — — — — — Asset backed securities 51,544 (441) 297,020 (4,710) 348,564 (5,151) Total securities available for sale $ 212,087 $ (1,332) $ 297,020 $ (4,710) $ 509,107 $ (6,042) Obligations of U.S. government corporations and 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, 2021, 49 debt securities representing obligations of U.S. government corporations and agencies had unrealized losses with aggregate depreciation of 1.10% 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, 2021, 33 debt security representing obligations of states and political subdivisions had unrealized losses with aggregate depreciation of 1.38% 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, 2021 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, 2021, 35 asset backed securities had unrealized losses with aggregate depreciation of 0.99% 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.

Loans

Loans	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Loans	Loans A summary of loan balances follows: (in thousands) December 31, 2021 December 31, 2020 Commercial real estate: CRE non-owner occupied $ 1,603,141 $ 1,535,555 CRE owner occupied 706,307 624,375 Multifamily 823,500 639,480 Farmland 173,106 152,492 Total commercial real estate loans 3,306,054 2,951,902 Consumer: SFR 1-4 1st DT liens 666,960 546,592 SFR HELOCs and junior liens 337,513 327,484 Other 67,078 78,032 Total consumer loans 1,071,551 952,108 Commercial and industrial 259,355 526,327 Construction 222,281 284,842 Agriculture production 50,811 44,164 Leases 6,572 3,784 Total loans, net of deferred loan fees and discounts $ 4,916,624 $ 4,763,127 Total principal balance of loans owed, net of charge-offs $ 4,946,653 $ 4,805,596 Unamortized net deferred loan fees (13,922) (16,984) Discounts to principal balance of loans owed, net of charge-offs (16,107) (25,485) Total loans, net of unamortized deferred loan fees and discounts $ 4,916,624 $ 4,763,127 Allowance for credit losses $ (85,376) $ (91,847)

Allowance for Credit Losses

Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2021
Allowance For Loan And Lease Losses [Abstract]
Allowance for Credit Losses	Allowance for Credit Losses The allowance for credit losses (ACL) was $85,376,000 as of December 31, 2021 as compared to $91,847,000 at December 31, 2020. 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, result in the need for changes in the balance of the allowance for credit losses. 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 incorporates the use of qualitative factors. The two most critical qualitative factors utilized by the Company include the actual and forecasted changes in both California unemployment and U.S. gross domestic product. During the year ended December 31, 2021, both the quantitative and qualitative factors improved which resulted in a decrease in the related components of the allowance for credit losses, despite the increases in non-PPP loan balances outstanding. 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, 2021 December 31, 2020 Allowance for credit losses: Qualitative and forecast factor allowance $ 59,855 $ 61,935 Quantitative (Cohort) model allowance reserves 24,539 28,462 Total allowance for credit losses 84,394 90,397 Allowance for individually evaluated loans 982 1,450 Allowance for PCD loan losses — — Total allowance for credit losses $ 85,376 $ 91,847 The following tables summarize the activity in the allowance for loan losses, and ending balance of loans, net of unearned fees for the periods indicated. 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 loan losses 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 Allowance for Loan Losses – December 31, 2019 (in thousands) Beginning Charge-offs Recoveries Provision for Ending Commercial real estate: CRE non-owner occupied $ 7,401 $ — $ 1,486 $ (2,939) $ 5,948 CRE owner occupied 2,711 (746) 42 20 2,027 Multifamily 2,429 — — 923 3,352 Farmland 403 — — 265 668 Total commercial real estate loans 12,944 (746) 1,528 (1,731) 11,995 Consumer: SFR 1-4 1st DT liens 2,676 (2) 54 (422) 2,306 SFR HELOCs and junior liens 7,582 (3) 935 (2,331) 6,183 Other 793 (765) 321 1,246 1,595 Total consumer loans 11,051 (770) 1,310 (1,507) 10,084 Commercial and industrial 5,610 (2,104) 513 848 4,867 Construction 2,497 — — 891 3,388 Agriculture production 480 (19) 12 (212) 261 Leases — — — 21 21 Allowance for loan losses $ 32,582 $ (3,639) $ 3,363 $ (1,690) $ 30,616 Reserve for Unfunded Commitments - December 31, 2019 Reserve for unfunded commitments $ 2,575 $ — $ — $ 200 $ 2,775 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, 2021 (in thousands) 2021 2020 2019 2018 2017 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 Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2021 (in thousands) 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total 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 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 Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2021 (in thousands) 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total 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 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 The following information related to loan originations by vintage are presented for comparison purposes only. Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2020 (in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: CRE non-owner occupied risk ratings Pass $ 120,520 $ 207,899 $ 155,730 $ 256,677 $ 179,523 $ 460,644 $ 76,730 $ — $ 1,457,723 Special Mention — 7,455 11,692 5,407 15,773 18,832 12,205 — 71,364 Substandard — — 1,449 584 2,147 2,288 — — 6,468 Doubtful/Loss — — — — — — — — — Total CRE non-owner occupied risk ratings $ 120,520 $ 215,354 $ 168,871 $ 262,668 $ 197,443 $ 481,764 $ 88,935 $ — $ 1,535,555 Commercial real estate: CRE owner occupied risk ratings Pass $ 105,896 $ 75,144 $ 53,816 $ 58,371 $ 54,541 $ 227,828 $ 25,508 $ — $ 601,104 Special Mention — — 288 7,451 2,955 6,140 — — 16,834 Substandard — 1,533 1,301 475 1,306 1,822 — — 6,437 Doubtful/Loss — — — — — — — — — Total CRE owner occupied risk ratings $ 105,896 $ 76,677 $ 55,405 $ 66,297 $ 58,802 $ 235,790 $ 25,508 $ — $ 624,375 Commercial real estate: Multifamily risk ratings Pass $ 77,646 $ 118,725 $ 113,882 $ 70,112 $ 67,457 $ 123,518 $ 19,007 $ — $ 590,347 Special Mention 9,441 — — 603 24,687 772 9,259 — 44,762 Substandard — 4,371 — — — — — — 4,371 Doubtful/Loss — — — — — — — — — Total multifamily loans $ 87,087 $ 123,096 $ 113,882 $ 70,715 $ 92,144 $ 124,290 $ 28,266 $ — $ 639,480 Commercial real estate: Farmland risk ratings Pass $ 17,640 $ 25,003 $ 19,148 $ 12,834 $ 7,377 $ 17,129 $ 39,411 $ — $ 138,542 Special Mention — 2,567 — 1,271 227 3,107 2,258 — 9,430 Substandard — 700 — 602 — 1,214 2,004 — 4,520 Doubtful/Loss — — — — — — — — — Total farmland loans $ 17,640 $ 28,270 $ 19,148 $ 14,707 $ 7,604 $ 21,450 $ 43,673 $ — $ 152,492 Consumer loans: SFR 1-4 1st DT liens risk ratings Pass $ 183,719 $ 80,717 $ 36,342 $ 53,001 $ 46,467 $ 126,465 $ 76 $ 5,507 $ 532,294 Special Mention — 290 684 110 15 2,936 — 934 4,969 Substandard — — 1,174 929 935 5,763 — 528 9,329 Doubtful/Loss — — — — — — — — — Total SFR 1st DT liens $ 183,719 $ 81,007 $ 38,200 $ 54,040 $ 47,417 $ 135,164 $ 76 $ 6,969 $ 546,592 Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2020 (in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Consumer loans: SFR HELOCs and Junior Liens risk ratings Pass $ 793 $ — $ 13 $ 360 $ 300 $ 910 $ 297,160 $ 14,051 $ 313,587 Special Mention — — 16 — — 83 4,504 789 5,392 Substandard — — — — — 39 6,698 1,768 8,505 Doubtful/Loss — — — — — — — — — Total SFR HELOCs and Junior Liens $ 793 $ — $ 29 $ 360 $ 300 $ 1,032 $ 308,362 $ 16,608 $ 327,484 Consumer loans: Other risk ratings Pass $ 25,876 $ 29,539 $ 14,170 $ 4,238 $ 1,020 $ 967 $ 986 $ — $ 76,796 Special Mention 43 208 147 74 24 65 90 — 651 Substandard 58 82 210 74 12 140 9 — 585 Doubtful/Loss — — — — — — — — — Total other consumer loans $ 25,977 $ 29,829 $ 14,527 $ 4,386 $ 1,056 $ 1,172 $ 1,085 $ — $ 78,032 Commercial and industrial loans: Commercial and industrial risk ratings Pass $ 356,701 $ 48,838 $ 20,463 $ 13,151 $ 5,185 $ 9,490 $ 65,938 $ 1,085 $ 520,851 Special Mention — 102 698 195 20 178 207 11 1,411 Substandard — 301 53 1,142 823 148 1,519 79 4,065 Doubtful/Loss — — — — — — — — — Total commercial and industrial loans $ 356,701 $ 49,241 $ 21,214 $ 14,488 $ 6,028 $ 9,816 $ 67,664 $ 1,175 $ 526,327 Construction loans: Construction risk ratings Pass $ 69,133 $ 41,786 $ 92,191 $ 51,082 $ 20,868 $ 2,876 $ — $ — $ 277,936 Special Mention — — — 346 — 1,780 — — 2,126 Substandard — — — — 4,529 251 — — 4,780 Doubtful/Loss — — — — — — — — — Total construction loans $ 69,133 $ 41,786 $ 92,191 $ 51,428 $ 25,397 $ 4,907 $ — $ — $ 284,842 Agriculture production loans: Agriculture production risk ratings Pass $ 977 $ 2,079 $ 1,590 $ 1,838 $ 663 $ 708 $ 36,051 $ — $ 43,906 Special Mention — — 203 — 49 — — — 252 Substandard — — — — 6 — — — 6 Doubtful/Loss — — — — — — — — — Total agriculture production loans $ 977 $ 2,079 $ 1,793 $ 1,838 $ 718 $ 708 $ 36,051 $ — $ 44,164 Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2020 (in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Leases: Lease risk ratings Pass $ 3,784 $ — $ — $ — $ — $ — $ — $ — $ 3,784 Special Mention — — — — — — — — — Substandard — — — — — — — — — Doubtful/Loss — — — — — — — — — Total leases $ 3,784 $ — $ — $ — $ — $ — $ — $ — $ 3,784 Total loans outstanding: Risk ratings Pass $ 962,685 $ 629,730 $ 507,345 $ 521,664 $ 383,401 $ 970,535 $ 560,867 $ 20,643 $ 4,556,870 Special Mention 9,484 10,622 13,728 15,457 43,750 33,893 28,523 1,734 157,191 Substandard 58 6,987 4,187 3,806 9,758 11,665 10,230 2,375 49,066 Doubtful/Loss — — — — — — — — — Total loans outstanding $ 972,227 $ 647,339 $ 525,260 $ 540,927 $ 436,909 $ 1,016,093 $ 599,620 $ 24,752 $ 4,763,127 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, 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 current and past due originated loans by loan category as of the date indicated: Analysis of Past Due Loans - As of December 31, 2020 (in thousands) 30-59 days 60-89 days > 90 days Total Past Current Total Commercial real estate: CRE non-owner occupied $ 127 $ 173 $ 239 $ 539 $ 1,535,016 $ 1,535,555 CRE owner occupied 297 — 824 1,121 623,254 624,375 Multifamily — — — — 639,480 639,480 Farmland 899 — 70 969 151,523 152,492 Total commercial real estate loans 1,323 173 1,133 2,629 2,949,273 2,951,902 Consumer: SFR 1-4 1st DT liens 37 — 960 997 545,595 546,592 SFR HELOCs and junior liens 418 212 1,671 2,301 325,183 327,484 Other 41 13 100 154 77,878 78,032 Total consumer loans 496 225 2,731 3,452 948,656 952,108 Commercial and industrial 155 426 105 686 525,641 526,327 Construction — — — — 284,842 284,842 Agriculture production — — — — 44,164 44,164 Leases — — — — 3,784 3,784 Total $ 1,974 $ 824 $ 3,969 $ 6,767 $ 4,756,360 $ 4,763,127 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, 2021 As of December 31, 2020 (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 $ 7,899 $ 7,899 $ — $ 3,110 $ 3,110 $ — CRE owner occupied 4,763 5,036 — 3,111 4,061 — Multifamily 4,457 4,457 — — — — Farmland 452 3,020 — 1,468 1,538 — Total commercial real estate loans 17,571 20,412 — 7,689 8,709 — Consumer: SFR 1-4 1st DT liens 3,594 3,595 — 4,950 5,093 — SFR HELOCs and junior liens 3,285 3,801 — 4,480 6,148 — Other 48 71 — 68 167 — Total consumer loans 6,927 7,467 — 9,498 11,408 — Commercial and industrial 1,904 2,416 — 652 2,183 — Construction 15 55 — 4,546 4,546 — Agriculture production — — — 5 18 — Leases — — — — — Sub-total 26,417 30,350 — 22,390 26,864 — Less: Guaranteed loans (713) (775) — (687) (811) — Total, net $ 25,704 $ 29,575 $ — $ 21,703 $ 26,053 $ — 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, 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 As of December 31, 2020 (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 $ 2,445 $ 435 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ 2,880 CRE owner occupied 796 1,176 1,668 — — — — — — — — 3,640 Multifamily — — — — — — — — — — — — Farmland — — — — — 1,538 — — — — — 1,538 Total commercial real estate loans 3,241 1,611 1,668 — — 1,538 — — — — — 8,058 Consumer: SFR 1-4 1st DT liens — — — — — — 5,068 — — — — 5,068 SFR HELOCs and junior liens — — — — — — 1,855 2,839 — — — 4,694 Other — — — 42 — — — — 97 — — 139 Total consumer loans — — — 42 — — 6,923 2,839 97 — — 9,901 Commercial and industrial — — — 292 — — — — — 1,173 75 1,540 Construction — — — — — — 4,547 — — — — 4,547 Agriculture production — — — — — — — — — 13 5 18 Leases — — — — — — — — — — Total $ 3,241 $ 1,611 $ 1,668 $ 334 $ — $ 1,538 $ 11,470 $ 2,839 $ 97 $ 1,186 $ 80 $ 24,064 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, 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 (dollars 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) TDR information for the year ended December 31, 2019 (in thousands) Number Pre-mod Post-mod Financial Number that Recorded Financial impact Commercial real estate: CRE non-owner occupied — $ — $ — $ — — $ — $ — CRE owner occupied 2 60 67 — — — — Multifamily — — — — — — — Farmland — — — — — — — Total commercial real estate loans 2 60 67 — — — — Consumer: SFR 1-4 1st DT liens 3 659 662 30 — — — SFR HELOCs and junior liens 3 214 215 29 — — — Other — — — — — — — Total consumer loans 6 873 877 59 — — — Commercial and industrial 10 1,918 1,885 — 1 7 — Construction — — — — — — — Agriculture production — — — — — — — Leases — — — — — — — Total 18 $ 2,851 $ 2,829 $ 59 $ 1 $ 7 $ — 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, 2021
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) 2021 2020 Beginning balance, net $ 2,844 $ 2,541 Additions/transfers from loans 1,052 766 Dispositions/sales (1,458) (513) Valuation adjustments 156 50 Ending balance, net $ 2,594 $ 2,844 Ending valuation allowance $ — $ (22) Ending number of foreclosed assets 6 7 Proceeds from sale of real estate owned $ 1,526 $ 570 Gain on sale of real estate owned $ 233 $ 57

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and Equipment As of December 31, (in thousands) 2021 2020 Land and land improvements $ 29,002 $ 29,505 Buildings 64,382 65,334 Furniture and equipment 42,305 45,994 135,689 140,833 Less: Accumulated depreciation (58,401) (57,462) 77,288 83,371 Construction in progress 1,399 360 Total premises and equipment $ 78,687 $ 83,731

Cash Value of Life Insurance

Cash Value of Life Insurance	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 Beginning balance $ 118,870 $ 117,823 Acquired policies from business combination — — Increase in cash value of life insurance 2,775 2,949 Gain on death benefit 702 498 Insurance proceeds receivable reclassified to other assets (4,490) (2,400) Ending balance $ 117,857 $ 118,870 End of period death benefit $ 193,318 $ 197,379 Number of policies owned 176 183 Insurance companies used 14 14 Current and former employees and directors covered 59 62

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2021
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 $ 220,872 $ — $ — $ 220,872 Impairment exists when a Company’s carrying value exceeds its fair value. Goodwill is evaluated for impairment annually. At September 30, 2021, 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, 2021, 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, Additions Reductions/ December 31, Core deposit intangibles $ 37,163 $ — $ — $ 37,163 Accumulated amortization (24,794) — (5,464) (19,330) Core deposit intangibles, net $ 12,369 — $ (5,464) $ 17,833 The Company recorded additions to its CDI of $27,605,000 in conjunction with the FNBB acquisition on July 6, 2018, $2,046,000 in conjunction with the acquisition of three branch offices from Bank of America on March 18, 2016, $6,614,000 in conjunction with the North Valley Bancorp acquisition on October 3, 2014, and $898,000 in conjunction with the Citizens acquisition on September 23, 2011. The following table summarizes the Company’s estimated core deposit intangible amortization (dollars in thousands): Years Ended Estimated CDI Amortization 2022 $ 4,776 2023 4,269 2024 2,482 2025 533 2026 309 Thereafter — $ 12,369

Mortgage Servicing Rights

Mortgage Servicing Rights	12 Months Ended
	Dec. 31, 2021
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, 2021 2020 2019 Balance at beginning of period $ 5,092 $ 6,200 $ 7,098 Additions 1,654 1,526 913 Change in fair value (872) (2,634) (1,811) Balance at end of period $ 5,874 $ 5,092 $ 6,200 Contractually specified servicing fees, late fees and ancillary fees earned $ 1,881 $ 1,855 $ 1,917 Balance of loans serviced at: Beginning of period $ 779,530 $ 767,662 $ 785,138 End of period $ 770,299 $ 779,530 $ 767,662 Period end: Weighted-average prepayment speed (CPR) 208.0 % 294.0 % 182.0 % Weighted-average expected life (years) 5.7 4.5 6.2 Weighted-average discount rate 12.0 % 12.0 % 12.0 % The changes in fair value of MSRs during 2021 were primarily due to changes in principal balances and mortgage prepayment speeds of the MSRs. The changes in fair value of MSRs during 2020 were primarily due to changes in investor required rate of return, or discount rate, of the MSRs. The changes in fair value of MSRs during 2019 were primarily due to changes in principal balances, changes in mortgage prepayment speeds, and changes in investor required rate of return, or discount rate, of the MSRs.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	Leases The following table presents the components of lease expense for the periods indicated: Year ended December 31, (in thousands) 2021 2020 Operating lease cost $ 5,201 $ 5,125 Short-term lease cost 241 263 Variable lease cost 11 5 Sublease income (24) (120) Total lease cost $ 5,429 $ 5,273 The following table presents supplemental cash flow information related to leases as of the periods ended: Year ended December 31, (in thousands) 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases $ 4,964 $ 4,927 ROUA obtained in exchange for operating lease liabilities $ 2,883 $ 4,161 The following table presents the weighted average operating lease term and discount rate as of the periods ended: Year ended December 31, 2021 2020 Weighted-average remaining lease term 9.3 years 9.9 years Weighted-average discount rate 2.9 % 3.1 % At December 31, 2021, future expected operating lease payments are as follows (in thousands): Periods ending December 31, 2022 $ 4,713 2023 4,071 2024 3,716 2025 3,132 2026 2,802 Thereafter 12,255 30,689 Discount for present value of expected cash flows (4,409) Lease liability at December 31, 2021 $ 26,280

Deposits

Deposits	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Deposits	Deposits A summary of the balances of deposits follows: (in thousands) December 31, 2021 2020 Noninterest-bearing demand $ 2,979,882 $ 2,581,517 Interest-bearing demand 1,568,682 1,414,908 Savings 2,520,959 2,164,942 Time certificates, $250,000 and over 44,652 73,147 Other time certificates 252,984 271,420 Total deposits $ 7,367,159 $ 6,505,934 Certificate of deposit balances of $1,000,000 and $10,000,000 from the State of California were included in time certificates over $250,000 at December 31, 2021 and 2020, respectively. The Bank participates in a deposit program offered by the State of California whereby the State may make deposits at the Bank’s request subject to collateral and credit worthiness constraints. The negotiated rates on these State deposits are generally more favorable than other wholesale funding sources available to the Bank. Overdrawn deposit balances of $2,324,000 and $985,000 were classified as consumer loans at December 31, 2021 and 2020, respectively. At December 31, 2021, the scheduled maturities of time deposits were as follows (in thousands): Scheduled 2022 $ 242,535 2023 31,852 2024 15,861 2025 4,069 2026 3,319 Thereafter — Total $ 297,636

Other Borrowings

Other Borrowings	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Other Borrowings	Other Borrowings A summary of the balances of other borrowings follows: December 31, 2021 2020 (in thousands) Other collateralized borrowings, fixed rate, as of December 31, 2021 and 2020 of 0.05%, payable on January 3, 2022 and January 4, 2021, respectively $ 50,087 $ 26,914 Total other borrowings $ 50,087 $ 26,914 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, 2021, the Company has pledged as collateral and sold under agreements to repurchase investment securities with fair value of $50,087,000 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, 2021, this line provided for maximum borrowings of $2,251,285,000 of which none was outstanding. As of December 31, 2021, the Company had designated investment securities with a fair value of $72,108,000 and loans totaling $3,486,380,000 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, 2021, this line provided for maximum borrowings of $184,694,000 of which none was outstanding. As of December 31, 2021, the Company has designated investment securities with fair value of $7,000 and loans totaling $308,299,000 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 $60,000,000 for federal funds transactions at December 31, 2021.

Junior Subordinated Debt

Junior Subordinated Debt	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Junior Subordinated Debt	Junior Subordinated Debt At December 31, 2021, 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. 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, 2021 December 31, 2020 Subordinated Debt Series Maturity Face Current Recorded Recorded TriCo Cap Trust I 10/7/2033 $ 20,619 3.05 % 3.29 % $ 20,619 $ 20,619 TriCo Cap Trust II 7/23/2034 20,619 2.55 % 2.67 % 20,619 20,619 North Valley Trust II 4/24/2033 6,186 3.25 % 3.38 % 5,403 5,304 North Valley Trust III 7/23/2034 5,155 2.80 % 2.92 % 4,291 4,199 North Valley Trust IV 3/15/2036 10,310 1.33 % 1.53 % 7,147 6,894 $ 62,889 $ 58,079 $ 57,635

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
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, 2021 and 2020. 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) 2021 2020 Financial instruments whose amounts represent risk: Commitments to extend credit: Commercial loans $ 409,950 $ 462,422 Consumer loans 628,791 534,223 Real estate mortgage loans 333,764 202,306 Real estate construction loans 213,563 227,876 Standby letters of credit 21,871 15,056 Deposit account overdraft privilege 125,670 110,813 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 1.6228 per Class B share. As of December 31, 2021, the value of the Class A shares was $216.71 per share. Utilizing the conversion ratio, the value of unredeemed Class A equivalent shares owned by the Bank was $4,711,000 as of December 31, 2021, 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, 2021
Equity [Abstract]
Shareholders' Equity	Shareholders’ Equity Dividends Paid The Bank paid to the Company cash dividends in the aggregate amounts of $31,571,000, $63,419,000, and $32,669,000 in 2021, 2020, and 2019, 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, 2021, the Bank could have paid dividends of $154,466,000 to the Company without the approval of the Commissioner of the DPFI. 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, 2021, the Company repurchased 63,317 shares. There were 223 shares repurchased during 2021 under the 2019 Repurchase Plan. 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 year ended December 31, 2020 the Company had repurchased 858,717 total shares. There were no shares of common stock repurchased under any plans during the year ended December 31, 2019. 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, 2021, 2020, and 2019, employees tendered 28,276, 12,488, and 115,954 shares, respectively, of the Company's common stock in connection with option exercises. Employees also tendered 19,413, 12,058 and 15,242 shares in connection with other share based awards during December 31, 2021, 2020 and 2019, respectively. In total, shares of the Company's common stock tendered had market values of $2,118,000, $736,000, and $5,108,000 for the years ended December 31, 2021, 2020 and 2019, 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, 2021
Share-based Payment Arrangement [Abstract]
Stock Options and Other Equity-Based Incentive Instruments	Stock Options and Other Equity-Based Incentive InstrumentsIn 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, 2021, there were no outstanding options for the purchase of common shares and 97,202 RSUs were outstanding. The number of shares that remain available for issuance is not more than 1,004,737, 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. There were no new grants issued under the 2009 Plan during 2019 prior to expiration, and as of December 31, 2021, 78,825 options for the purchase of common shares and 6,315 RSUs remain outstanding. Stock option activity is summarized in the following table for the dates indicated: Number of Option Price Weighted Outstanding at January 1, 2020 160,500 $12.63 to $23.21 $ 17.60 Options granted — — — Options exercised (32,000) $14.54 to $19.46 $ 17.10 Options forfeited — — — Outstanding at December 31, 2020 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 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, 2021: Currently Currently Not Total Number of options 78,825 — 78,825 Weighted average exercise price $ 19.28 $ — $ 19.28 Intrinsic value (in thousands) $ 1,867 $ — $ 1,867 Weighted average remaining contractual term (yrs.) 1.40 n/a 1.40 All options outstanding as of December 31, 2021 are fully vested. The Company did not modify any option grants during the three year period ended December 31, 2021. 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, 2021 2020 2019 Intrinsic value of options exercised $ 1,476,000 $ 403,000 $ 4,169,000 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 $ — $ — $ 1,233,000 There were no stock options granted during 2021, 2020 and 2019, 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, 2021 99,809 81,615 RSUs granted 47,029 $ 45.48 31,479 $ 39.15 Additional market plus service condition RSUs vested — 6,067 RSUs added through dividend credits 2,277 — RSUs released through vesting (45,492) (19,272) RSUs forfeited/expired (106) (126) Outstanding at December 31, 2021 103,517 99,763 The 103,517 of service condition vesting RSUs outstanding as of December 31, 2021 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 103,517 of service condition vesting RSUs outstanding as of December 31, 2021 are expected to vest, and be released, on a weighted-average basis, over the next 1.3 years. The Company expects to recognize $2,920,422 of pre-tax compensation costs related to these service condition vesting RSUs between December 31, 2021 and their vesting dates. The Company did not modify any service condition vesting RSUs during 2021 or 2020. The 99,763 of market plus service condition vesting RSUs outstanding as of December 31, 2021 are expected to vest, and be released, on a weighted-average basis, over the next 1.5 years. The Company expects to recognize $1,599,463 of pre-tax compensation costs related to these RSUs between December 31, 2021 and their vesting dates. As of December 31, 2021, 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 149,645 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 2021 or 2020. The following table shows the compensation costs and excess tax benefits for RSUs recognized in income for the periods indicated: Year Ended December 31, 2021 2020 2019 Total compensation costs recognized in income Service condition vesting RSUs $ 1,728,000 $ 1,390,000 $ 1,161,000 Market plus service condition vesting RSUs $ 911,000 $ 646,000 $ 493,000 Excess tax benefit recognized in income Service condition vesting RSUs $ 626,000 $ 372,000 $ 141,000 Market plus service condition vesting RSUs $ 226,000 $ 194,000 $ 146,000

Non-interest Income and Expense

Non-interest Income and Expense	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 2019 ATM and interchange fees $ 25,356 $ 21,660 $ 20,639 Service charges on deposit accounts 14,013 13,944 16,657 Other service fees 3,570 3,156 3,015 Mortgage banking service fees 1,881 1,855 1,917 Change in value of mortgage loan servicing rights (872) (2,634) (1,811) Total service charges and fees 43,948 37,981 40,417 Asset management and commission income 3,668 2,989 2,877 Increase in cash value of life insurance 2,775 2,949 3,029 Gain on sale of loans 9,580 9,122 3,282 Lease brokerage income 746 668 878 Sale of customer checks 459 414 529 Gain on sale of investment securities — 7 110 Gain (loss) on marketable equity securities (86) 64 86 Other 2,574 1,000 2,312 Total other noninterest income 19,716 17,213 13,103 Total noninterest income $ 63,664 $ 55,194 $ 53,520 Mortgage banking servicing fee income (expense), net of change in value of mortgage loan servicing rights, totaling $1,009,000, $779,000, and $106,000 were recorded within service charges and fees for the years ended December 31, 2021, 2020, and 2019, respectively. The components of noninterest expense were as follows: Year Ended December 31, (in thousands) 2021 2020 2019 Base salaries, net of deferred loan origination costs $ 69,844 $ 70,164 $ 70,218 Incentive compensation 14,957 10,022 13,106 Benefits and other compensation costs 21,550 31,935 22,741 Total salaries and benefits expense 106,351 112,121 106,065 Occupancy 14,910 14,528 14,893 Data processing and software 13,985 13,504 13,517 Equipment 5,358 5,704 7,022 ATM and POS network charges 6,040 5,433 5,447 Merger and acquisition expense 1,523 — — Advertising 2,899 2,827 5,633 Professional fees 3,657 3,222 3,754 Intangible amortization 5,464 5,724 5,723 Telecommunications 2,253 2,601 3,190 Regulatory assessments and insurance 2,581 1,594 1,188 Courier service 1,214 1,414 1,308 Operational losses 964 1,168 986 Postage 710 1,068 1,258 Gain on sale or acquisition of foreclosed assets (233) (235) (246) (Gain) loss on disposal of fixed assets (439) 67 82 Other miscellaneous expense 11,038 12,018 15,637 Total other noninterest expense 71,924 70,637 79,392 Total noninterest expense $ 178,275 $ 182,758 $ 185,457

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The components of consolidated income tax expense are as follows (in thousands): Year Ended December 31, 2021 2020 2019 Current tax expense Federal $ 28,763 $ 22,104 $ 20,403 State 18,221 14,586 12,655 $ 46,984 36,690 33,058 Deferred tax expense Federal (872) (9,500) 695 State (64) (4,654) 997 (936) (14,154) 1,692 Total tax expense $ 46,048 $ 22,536 $ 34,750 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, 2021 2020 2019 Tax credits and other tax benefits – decrease in tax expense $ (4,224) $ (4,200) $ (2,546) Amortization – increase in tax expense $ 3,604 $ 3,581 $ 2,705 The carrying value of Low Income Housing Tax Credit Funds was $41,295,000 and $26,899,000 as of December 31, 2021 and 2020, respectively. As of December 31, 2021, the Company has committed to make additional capital contributions to the Low Income Housing Tax Credit Funds in the amount of $21,054,000, 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, 2021, 2020 and 2019 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) 2021 2020 2019 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % State income taxes, net of federal tax benefit 7.9 7.7 7.9 Tax-exempt interest on municipal obligations (0.5) (0.9) (0.7) Tax-exempt life insurance related income (0.5) (0.8) (0.6) Low income housing tax credits (2.6) (4.8) (2.3) Low income housing tax credit amortization 2.2 4.1 2.1 Equity compensation (0.1) 0.4 (0.4) Non-deductible merger expenses 0.1 — — Other 0.6 (0.9) 0.4 Effective Tax Rate 28.1 % 25.8 % 27.4 % 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, 2021 2020 Deferred tax assets: Allowance for losses and reserve for unfunded commitments $ 26,361 $ 28,159 Deferred compensation 1,758 1,786 Accrued pension liability — 383 Other accrued expenses 1,994 1,537 Additional unfunded status of the supplemental retirement plans 13,693 13,275 Operating lease liability 7,769 8,270 State taxes 3,251 2,870 Share based compensation 952 837 Nonaccrual interest 937 725 Acquisition cost basis 506 2,372 Unrealized loss on securities 116 — Tax credits 513 513 Net operating loss carryforwards 1,131 1,131 Other 813 327 Total deferred tax assets 59,794 62,185 Deferred tax liabilities: Securities income (762) (762) Depreciation (6,198) (7,231) Right of use asset (7,588) (8,232) Funded pension liability (709) — Securities accretion (846) (702) Mortgage servicing rights valuation (1,726) (1,490) Unrealized gain on securities — (5,671) Core deposit intangible (3,248) (4,812) Junior subordinated debt (1,422) (1,553) Prepaid expenses and other (488) (532) Total deferred tax liability (22,987) (30,985) Net deferred tax asset $ 36,807 $ 31,200 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 would be subject to these limitations as of December 31, 2021 were none for federal and $13,367,000 for California. The amount of the Company’s tax credits that would be subject to these limitations as of December 31, 2021 are $63,000 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 beginning in 2019. 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, 2021 and 2020 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, 2021 and December 31, 2020 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 2014 and 2017, respectively.

Earnings per Share

Earnings per Share	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 2019 Net income $ 117,655 $ 64,814 $ 92,072 Average number of common shares outstanding 29,721 29,917 30,478 Effect of dilutive stock options and restricted stock 161 111 167 Average number of common shares outstanding used to calculate diluted earnings per share 29,882 30,028 30,645 Options excluded from diluted earnings per share because the effect of these options was antidilutive — — —

Comprehensive Income

Comprehensive Income	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Comprehensive Income	Comprehensive Income 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) 2021 2020 2019 Unrealized holding gains (losses) on available for sale securities before reclassifications $ (19,575) $ 15,803 $ 24,471 Amounts reclassified out of accumulated other comprehensive income: Realized gains on debt securities — (7) (110) Total amounts reclassified out of accumulated other — (7) (110) Unrealized holding gains (losses) on available for sale securities after reclassifications (19,575) 15,796 24,361 Tax effect 5,787 (4,670) (7,202) Unrealized holding gains (losses) on available for sale securities, net of tax (13,788) 11,126 17,159 Change in unfunded status of the supplemental retirement plans before reclassifications 3,497 645 (6,745) Amounts reclassified out of accumulated other comprehensive income: Amortization of prior service cost (58) (55) (54) Amortization of actuarial losses 254 9,309 408 Total amounts reclassified out of accumulated other 196 9,254 354 Change in unfunded status of the supplemental retirement plans after reclassifications 3,693 9,899 (6,391) Tax effect (1,091) (2,927) 1,889 Change in unfunded status of the supplemental retirement plans, net of tax 2,602 6,972 (4,502) Change in joint beneficiary agreement liability before reclassifications (113) (596) — Tax effect — — — Change in unfunded status of the supplemental retirement plans, net of tax (113) (596) — Total other comprehensive income (loss) $ (11,299) $ 17,502 $ 12,657 The components of accumulated other comprehensive income, included in shareholders’ equity, are as follows: Year Ended December 31, (in thousands) 2021 2020 Net unrealized gain (loss) on available for sale securities $ (392) $ 19,183 Tax effect 116 (5,671) Unrealized holding (gain) loss on available for sale securities, net of tax (276) 13,512 Unfunded status of the supplemental retirement plans 2,399 (1,294) Tax effect (709) 382 Unfunded status of the supplemental retirement plans, net of tax 1,690 (912) Joint beneficiary agreement liability, net of tax (433) (320) Accumulated other comprehensive income $ 981 $ 12,280

Retirement Plans

Retirement Plans	12 Months Ended
	Dec. 31, 2021
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. Prior to July 1, 2015, the Company did not contribute to the 401(k) Plan. Effective July 1, 2015, the Company initiated a discretionary matching contribution equal to 50% of participant’s elective deferrals each quarter, 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) 2021 2020 2019 401(k) Plan benefits expense $ 1,211 $ 1,139 $ 1,119 401(k) Plan contributions made by the Company $ 1,121 $ 202 $ 1,003 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) 2021 2020 2019 ESOP benefits expense $ 1,888 $ 2,400 $ 2,500 ESOP contributions made by the Company $ 878 $ 1,951 $ 1,875 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 $5,945,000 and $6,043,000 at December 31, 2021 and 2020, respectively. Earnings credits on deferred balances included in non-interest expense are included in the following table: Year Ended December 31, (in thousands) 2021 2020 2019 Deferred compensation earnings credits included in non-interest expense $ 176 $ 212 $ 363 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 $117,857,000 and $118,870,000 at December 31, 2021 and 2020, respectively. The Company recorded in other liabilities the additional (funded) unfunded status of the supplemental retirement plans of $(2,399,000) and $1,294,000 related to the supplemental retirement plans as of December 31, 2021 and 2020, 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, 2021 and 2020, the additional unfunded status of the supplemental retirement plans of $(2,399,000) and $1,294,000 were offset by a reduction of shareholders’ equity accumulated other comprehensive loss of $(1,690,000) and $912,000, respectively, representing the after-tax impact of the additional unfunded status of the supplemental retirement plans, and the related deferred tax asset of $(709,000) and $382,000, 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 $26,000 of the net actuarial loss reported in the following table as of December 31, 2021 as a component of net periodic benefit cost during 2021. December 31, (in thousands) 2021 2020 Transition obligation $ — $ — Prior service cost (28) (86) Net actuarial loss (2,371) 1,380 Amount included in accumulated other comprehensive income (loss) (2,399) 1,294 Deferred tax benefit 709 (382) Amount included in accumulated other comprehensive income (loss), net of tax $ (1,690) $ 912 Information pertaining to the activity in the supplemental retirement plans, using a measurement date of December 31, is as follows: December 31, (in thousands) 2021 2020 Change in benefit obligation: Benefit obligation at beginning of year $ (38,000) $ (36,737) Service cost (913) (2,225) Interest cost (898) (1,014) Actuarial (loss)/gain 3,580 640 Plan amendments — — Benefits paid 972 1,336 Benefit obligation at end of year $ (35,259) $ (38,000) Change in plan assets: Fair value of plan assets at beginning of year $ — $ — Fair value of plan assets at end of year $ — $ — Funded status $ (35,259) $ (38,000) Unrecognized net obligation existing at January 1, 1986 — Unrecognized net actuarial (loss)/gain (2,453) 1,380 Unrecognized prior service cost (28) (86) Accumulated other comprehensive income (loss) 2,481 (1,294) Accrued benefit cost $ (35,259) $ (38,000) Accumulated benefit obligation $ (34,015) $ (36,298) The following table sets forth the net periodic benefit cost recognized for the supplemental retirement plans: Year Ended December 31, (in thousands) 2021 2020 2019 Net pension cost included the following components: Service cost-benefits earned during the period $ 913 $ 2,225 $ 879 Interest cost on projected benefit obligation 898 1,014 1,131 Amortization of net obligation at transition — 1 2 Amortization of prior service cost (58) (55) (54) Recognized net actuarial loss 254 9,309 408 Net periodic pension cost $ 2,007 $ 12,494 $ 2,366 The following table sets forth assumptions used in accounting for the plans: Year Ended December 31, 2021 2020 2019 Discount rate used to calculate benefit obligation 2.74 % 2.40 % 2.82 % Discount rate used to calculate net periodic pension cost 2.40 % 2.82 % 3.96 % Average annual increase in executive compensation 3.25 % 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 2022 $ 1,118 $ 1,118 2023 2,208 2,208 2024 2,214 2,214 2025 2,203 2,203 2026 2,160 2,160 2027-2031 10,294 10,294

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2021
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, 2019 $ 10,121 Advances/new loans 665 Removed/payments (3,953) Balance December 31, 2020 6,833 Advances/new loans 2,000 Removed/payments (2,517) Balance December 31, 2021 $ 6,316 Deposits of directors, officers and other related parties to the Bank totaled $35,310,000 and $40,843,000 at December 31, 2021 and 2020, respectively.

Fair Value Measurement

Fair Value Measurement	12 Months Ended
	Dec. 31, 2021
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. Impaired loans —Loans are not recorded at fair value on a recurring basis. However, from time to time, loans maybe considered impaired 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 considered impaired. The fair value of an impaired loan is estimated using one of several methods, including collateral value, fair value of similar debt, enterprise value, liquidation value and discounted cash flows. Those impaired 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. Impaired 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 impaired loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value, or the appraised value contains a significant unobservable assumption, such as deviations from comparable sales, and there is no observable market price, the Company records the impaired 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 impaired originated loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value, or the appraised value contains a significant unobservable assumption, such as deviations from comparable sales, and there is no observable market price, the Company records the foreclosed asset as nonrecurring Level 3. Revenue and expenses from operations and changes in the valuation allowance are included in other non-interest expense. Mortgage servicing rights —Mortgage servicing rights are carried at fair value. A valuation model, which utilizes a discounted cash flow analysis using a discount rate and prepayment speed assumptions is used in the computation of the fair value measurement. While the prepayment speed assumption is currently quoted for comparable instruments, the discount rate assumption currently requires a significant degree of management judgment and is therefore considered an unobservable input. As such, the Company classifies mortgage servicing rights subjected to recurring fair value adjustments as Level 3. Additional information regarding mortgage servicing rights can be found in Note 10 in the consolidated financial statements at Item 1 of this report. The table below presents the recorded amount of assets and liabilities measured at fair value on a recurring basis (in thousands): 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 751,549 — 751,549 — 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 Fair value at December 31, 2020 Total Level 1 Level 2 Level 3 Marketable equity securities $ 3,025 $ 3,025 $ — $ — Debt securities available for sale: Obligations of U.S. government agencies 812,374 — 812,374 — Obligations of states and political subdivisions 129,095 — 129,095 — Corporate bonds 2,544 — 2,544 — Asset backed securities 470,251 — 470,251 — Loans held for sale 6,268 — 6,268 — Mortgage servicing rights 5,092 — — 5,092 Total assets measured at fair value $ 1,428,649 $ 3,025 $ 1,420,532 $ 5,092 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 2021 or 2020. 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, 2021, 2020, and 2019. Had there been any transfer into or out of Level 3 during 2021, 2020, or 2019, 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 2021: Mortgage servicing rights $ 5,092 — $ (872) $ 1,654 $ 5,874 2020: Mortgage servicing rights $ 6,200 — $ (2,634) $ 1,526 $ 5,092 2019: Mortgage servicing rights $ 7,098 — $ (1,811) $ 913 $ 6,200 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 presents quantitative information about recurring Level 3 fair value measurements at December 31, 2021 and 2020: December 31, 2021 Fair Value Valuation Unobservable Range, Mortgage Servicing Rights $5,874 Discounted Constant 187%-264%, 208% Discount rate 10%-14%, 12% December 31, 2020 Mortgage Servicing Rights $5,092 Discounted Constant 240%-333%, 294% 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 (in thousands): Year ended December 31, 2021 Total Level 1 Level 2 Level 3 Total Gains Fair value: Impaired loans $ 3,683 $ 3,683 $ (1,105) Year ended December 31, 2020 Total Level 1 Level 2 Level 3 Total Gains Fair value: Impaired loans $ 1,424 — — $ 1,424 $ (1,489) Real estate owned 979 — — 979 155 Total assets measured at fair value $ 2,403 — — $ 2,403 $ (1,334) The impaired loan amount above represents impaired, collateral dependent loans that have been adjusted to fair value. When we identify a collateral dependent loan as impaired, we measure the impairment 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 impaired 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 table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at December 31, 2021 and 2020: December 31, 2021 Fair Value Valuation Technique Unobservable Inputs Range, Impaired loans $ 3,683 Sales comparison Adjustment for differences between Not meaningful; December 31, 2020 Fair Value Valuation Technique Unobservable Inputs Range, Impaired loans $ 1,424 Sales comparison Adjustment for differences between Not meaningful; Real estate owned (Residential) $ 824 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, 2021 December 31, 2020 Carrying Fair Carrying Fair Financial assets: Level 1 inputs: Cash and due from banks $ 57,032 $ 57,032 $ 77,253 $ 77,253 Cash at Federal Reserve and other banks 711,389 711,389 592,298 592,298 Level 2 inputs: Securities held to maturity 199,759 208,140 284,563 298,726 Restricted equity securities 17,250 N/A 17,250 N/A Level 3 inputs: Loans, net 4,831,248 4,880,044 4,671,280 4,753,027 Financial liabilities: Level 2 inputs: Deposits 7,367,159 7,366,422 6,505,934 6,507,235 Other borrowings 50,087 50,087 26,914 26,914 Level 3 inputs: Junior subordinated debt 58,079 57,173 57,635 56,632 Contract Fair Contract Fair Off-balance sheet: Level 3 inputs: Commitments (1) $ 1,586,068 $ 15,861 $ 1,426,827 $ 14,268 Standby letters of credit (1) 21,871 219 15,056 151 Overdraft privilege commitments (1) 125,670 1,257 110,813 1,108 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. (1) Lending related commitments -

TriCo Bancshares Condensed Fina

TriCo Bancshares Condensed Financial Statements (Parent Only)	12 Months Ended
	Dec. 31, 2021
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 $ 4,950 $ 13,297 Investment in Tri Counties Bank 1,047,577 967,949 Other assets 6,073 1,818 Total assets $ 1,058,600 $ 983,064 Liabilities and shareholders’ equity Other liabilities $ 337 $ 315 Junior subordinated debt 58,079 57,635 Total liabilities 58,416 57,950 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 29,730,424 and 29,727,214 shares at December 31, 2021 and 2020, respectively 532,244 530,835 Retained earnings 466,959 381,999 Accumulated other comprehensive income (loss), net 981 12,280 Total shareholders’ equity 1,000,184 925,114 Total liabilities and shareholders’ equity $ 1,058,600 $ 983,064 Condensed Statements of Income Year Ended December 31, 2021 2020 2019 (In thousands) Net interest expense $ (2,128) $ (2,555) $ (3,272) Administration expense (985) (932) (877) Loss before equity in net income of Tri Counties Bank (3,113) (3,487) (4,149) Equity in net income of Tri Counties Bank: Distributed 31,571 63,419 32,669 Undistributed 88,289 3,851 62,326 Income tax benefit 908 1,031 1,226 Net income $ 117,655 $ 64,814 $ 92,072 Condensed Statements of Comprehensive Income Year Ended December 31, 2021 2020 2019 (In thousands) Net income $ 117,655 $ 64,814 $ 92,072 Other comprehensive income (loss), net of tax: Increase (decrease) in unrealized gains on available for sale securities arising during the period (13,788) 11,126 17,159 Change in minimum pension liability 2,602 6,972 (4,502) Change in joint beneficiary agreement liablity (113) (596) — Other comprehensive income (loss) (11,299) 17,502 12,657 Comprehensive income $ 106,356 $ 82,316 $ 104,729 Condensed Statements of Cash Flows Year Ended December 31, 2021 2020 2019 (In thousands) Operating activities: Net income $ 117,655 $ 64,814 $ 92,072 Adjustments to reconcile net income to net cash provided by operating activities: Undistributed equity in earnings of Tri Counties Bank (88,289) (3,851) (62,326) Equity compensation vesting expense 2,638 2,036 1,654 Net change in other assets and liabilities (6,427) (1,885) (1,580) Net cash provided by operating activities 25,577 61,114 29,820 Investing activities: None Financing activities: Issuance of common stock through option exercise 144 198 9 Repurchase of common stock (4,344) (26,720) (2,196) Cash dividends paid — common (29,724) (26,303) (24,999) Net cash used for financing activities (33,924) (52,825) (27,186) Net change in cash and cash equivalents (8,347) 8,289 2,634 Cash and cash equivalents at beginning of year 13,297 5,008 2,374 Cash and cash equivalents at end of year $ 4,950 $ 13,297 $ 5,008

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2021
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, 2021 and 2020, 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, 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 % Actual Required for Capital Adequacy Purposes Required to be (in thousands) Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020: Total Capital (to Risk Weighted Assets): Consolidated $ 793,433 15.22 % $ 547,352 10.50 % N/A N/A Tri Counties Bank $ 780,320 14.97 % $ 547,156 10.50 % $ 521,101 10.00 % Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 727,879 13.96 % $ 443,094 8.50 % N/A N/A Tri Counties Bank $ 714,811 13.72 % $ 442,936 8.50 % $ 416,881 8.00 % Common equity Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 671,975 12.89 % $ 364,901 7.00 % N/A N/A Tri Counties Bank $ 714,811 13.72 % $ 364,771 7.00 % $ 338,716 6.50 % Tier 1 Capital (to Average Assets): Consolidated $ 727,879 9.93 % $ 293,138 4.00 % N/A N/A Tri Counties Bank $ 714,811 9.76 % $ 292,949 4.00 % $ 366,186 5.00 %

Summary of Quarterly Results of

Summary of Quarterly Results of Operations (unaudited)	12 Months Ended
	Dec. 31, 2021
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Results of Operations (unaudited)	Summary of Quarterly Results of Operations (unaudited) The following table sets forth the results of operations for the four quarters of 2021 and 2020, 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. 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 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 2020 Quarters Ended (dollars in thousands, except per share data) December 31, September 30, June 30, March 31, Interest and dividend income: Loans: Discount accretion $ 1,960 $ 1,876 $ 2,587 $ 1,748 All other loan interest income 59,055 56,163 55,822 54,510 Total loan interest income 61,015 58,039 58,409 56,258 Debt securities, dividends and interest bearing cash at banks 7,066 7,399 8,739 10,259 Total interest income 68,081 65,438 67,148 66,517 Interest expense 1,659 1,984 2,489 3,325 Net interest income 66,422 63,454 64,659 63,192 Provision for credit losses 4,850 7,649 22,244 8,070 Net interest income after provision for loan losses 61,572 55,805 42,415 55,122 Noninterest income 16,580 15,137 11,657 11,820 Noninterest expense 45,745 46,714 45,550 44,749 Income before income taxes 32,407 24,228 8,522 22,193 Income tax expense 8,750 6,622 1,092 6,072 Net income $ 23,657 $ 17,606 $ 7,430 $ 16,121 Per common share: Net income (diluted) $ 0.79 $ 0.59 $ 0.25 $ 0.53 Dividends $ 0.22 $ 0.22 $ 0.22 $ 0.22

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
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 31 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 $1,744,000 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, 2021 and 2020, the Company recognized net unrealized gains of $718,000 and losses of $64,000, 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 ("AFS") or held to maturity ("HTM"). 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, 2021. 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, 2021, 2020 and 2019. 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, 2021, 2020 or 2019. 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, 2021, 2020 or 2019.
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 On January 1, 2020, the Company adopted ASU 2016-03 Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which replaces 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 Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost and off-balance sheet credit exposures. As a result, the Company recognized an increase in the ACL for loans totaling $18,913,000, including a reclassification of $481,000 from discounts on acquired loans to the allowance for credit losses, as a cumulative effect adjustment from change in accounting policies, with a corresponding decrease in retained earnings, net of $5,449,000 in taxes of $12,983,000. 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. 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 fifteen • 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 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, 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.
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, 2021 and December 31, 2020, 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
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 2021 and Pending Adoption	Accounting Standards Adopted in 2021 On January 1, 2021, the Company adopted ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. This ASU simplified the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The guidance also promoted consistent application and simplification of GAAP for other areas of Topic 740 by clarifying and amending existing guidance. ASU 2019-12 did not have a significant impact on the Company’s consolidated financial statements. On January 1, 2021, the Company adopted ASU No. 2020-10, "Codification Improvements" to address suggestions received from stakeholders on the Accounting Standards Codification and to make other incremental improvements to GAAP. ASU 2020-10 did not have a significant impact on the Company’s consolidated financial statements. In August 2021, FASB issued ASU 2021-06, Presentation of Financial Statements (Topic 205), Financial Services—Depository and Lending (Topic 942), and Financial Services—Investment Companies (Topic 946): Amendments to SEC Paragraphs Pursuant to SEC Final Rule Releases No. 33-10786, Amendments to Financial Disclosures about Acquired and Disposed Businesses, and No. 33-10835, Update of Statistical Disclosures for Bank and Savings and Loan Registrants. This ASU updates certain GAAP annual and interim disclosure requirements to conform with SEC disclosure updates to Guide 3 "Statistical Disclosure by Bank Holding Companies.” Amendments in this ASU were effective for the Company's annual disclosures for fiscal year ending December 31, 2021. The Company's existing annual disclosure report (10-K) largely complied with the impacted updates to Guide 3 requirements, with limited changes made to Management's Discussion and Analysis section of the 10-K. Accounting Standards Pending Adoption 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. The amendments in this Update apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The election to apply the optional relief for existing fair value and cash flow hedge accounting relationships may be made on a hedge-by-hedge basis and across multiple reporting periods. Amendments in this ASU are effective for the Company through December 31, 2022. 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.

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2021
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, 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 754,185 2,354 (4,990) 751,549 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 December 31, 2020 Amortized Gross Gross Estimated (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 795,555 $ 17,710 $ (891) $ 812,374 Obligations of states and political subdivisions 123,347 5,748 — 129,095 Corporate bonds 2,459 85 — 2,544 Asset backed securities 473,720 1,682 (5,151) 470,251 Total debt securities available for sale $ 1,395,081 $ 25,225 $ (6,042) $ 1,414,264 Debt Securities Held to Maturity Obligations of U.S. government agencies $ 273,667 $ 13,774 $ — $ 287,441 Obligations of states and political subdivisions 10,896 389 — 11,285 Total debt securities held to maturity $ 284,563 $ 14,163 $ — $ 298,726
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 $ 7,601 $ 7,645 $ — $ — Due after one year through five years 131,657 130,955 1,766 1,890 Due after five years through ten years 341,925 342,606 16,612 17,090 Due after ten years 1,727,147 1,726,732 181,381 189,160 Totals $ 2,208,330 $ 2,207,938 $ 199,759 $ 208,140
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, 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 389,837 (4,118) 109,748 (872) 499,585 (4,990) Total debt securities available for sale $ 1,393,098 $ (14,640) $ 153,834 $ (2,165) $ 1,546,932 $ (16,805) Less than 12 months 12 months or more Total Fair Unrealized Fair Unrealized Fair Unrealized December 31, 2020 (in thousands) Debt Securities Available for Sale Obligations of U.S. government agencies $ 160,543 $ (891) $ — $ — $ 160,543 $ (891) Obligations of states and political subdivisions — — — — — — Asset backed securities 51,544 (441) 297,020 (4,710) 348,564 (5,151) Total securities available for sale $ 212,087 $ (1,332) $ 297,020 $ (4,710) $ 509,107 $ (6,042)

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Summary of Loan Balances	A summary of loan balances follows: (in thousands) December 31, 2021 December 31, 2020 Commercial real estate: CRE non-owner occupied $ 1,603,141 $ 1,535,555 CRE owner occupied 706,307 624,375 Multifamily 823,500 639,480 Farmland 173,106 152,492 Total commercial real estate loans 3,306,054 2,951,902 Consumer: SFR 1-4 1st DT liens 666,960 546,592 SFR HELOCs and junior liens 337,513 327,484 Other 67,078 78,032 Total consumer loans 1,071,551 952,108 Commercial and industrial 259,355 526,327 Construction 222,281 284,842 Agriculture production 50,811 44,164 Leases 6,572 3,784 Total loans, net of deferred loan fees and discounts $ 4,916,624 $ 4,763,127 Total principal balance of loans owed, net of charge-offs $ 4,946,653 $ 4,805,596 Unamortized net deferred loan fees (13,922) (16,984) Discounts to principal balance of loans owed, net of charge-offs (16,107) (25,485) Total loans, net of unamortized deferred loan fees and discounts $ 4,916,624 $ 4,763,127 Allowance for credit losses $ (85,376) $ (91,847)

Allowance for Credit Losses (Ta

Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2021
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, 2021 December 31, 2020 Allowance for credit losses: Qualitative and forecast factor allowance $ 59,855 $ 61,935 Quantitative (Cohort) model allowance reserves 24,539 28,462 Total allowance for credit losses 84,394 90,397 Allowance for individually evaluated loans 982 1,450 Allowance for PCD loan losses — — Total allowance for credit losses $ 85,376 $ 91,847
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 loan losses, and ending balance of loans, net of unearned fees for the periods indicated. 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 loan losses 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 Allowance for Loan Losses – December 31, 2019 (in thousands) Beginning Charge-offs Recoveries Provision for Ending Commercial real estate: CRE non-owner occupied $ 7,401 $ — $ 1,486 $ (2,939) $ 5,948 CRE owner occupied 2,711 (746) 42 20 2,027 Multifamily 2,429 — — 923 3,352 Farmland 403 — — 265 668 Total commercial real estate loans 12,944 (746) 1,528 (1,731) 11,995 Consumer: SFR 1-4 1st DT liens 2,676 (2) 54 (422) 2,306 SFR HELOCs and junior liens 7,582 (3) 935 (2,331) 6,183 Other 793 (765) 321 1,246 1,595 Total consumer loans 11,051 (770) 1,310 (1,507) 10,084 Commercial and industrial 5,610 (2,104) 513 848 4,867 Construction 2,497 — — 891 3,388 Agriculture production 480 (19) 12 (212) 261 Leases — — — 21 21 Allowance for loan losses $ 32,582 $ (3,639) $ 3,363 $ (1,690) $ 30,616 Reserve for Unfunded Commitments - December 31, 2019 Reserve for unfunded commitments $ 2,575 $ — $ — $ 200 $ 2,775
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, 2021 (in thousands) 2021 2020 2019 2018 2017 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 Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2021 (in thousands) 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total 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 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 Term Loans Amortized Cost Basis by Origination Year - As of December 31, 2021 (in thousands) 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total 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 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 The following information related to loan originations by vintage are presented for comparison purposes only. Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2020 (in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: CRE non-owner occupied risk ratings Pass $ 120,520 $ 207,899 $ 155,730 $ 256,677 $ 179,523 $ 460,644 $ 76,730 $ — $ 1,457,723 Special Mention — 7,455 11,692 5,407 15,773 18,832 12,205 — 71,364 Substandard — — 1,449 584 2,147 2,288 — — 6,468 Doubtful/Loss — — — — — — — — — Total CRE non-owner occupied risk ratings $ 120,520 $ 215,354 $ 168,871 $ 262,668 $ 197,443 $ 481,764 $ 88,935 $ — $ 1,535,555 Commercial real estate: CRE owner occupied risk ratings Pass $ 105,896 $ 75,144 $ 53,816 $ 58,371 $ 54,541 $ 227,828 $ 25,508 $ — $ 601,104 Special Mention — — 288 7,451 2,955 6,140 — — 16,834 Substandard — 1,533 1,301 475 1,306 1,822 — — 6,437 Doubtful/Loss — — — — — — — — — Total CRE owner occupied risk ratings $ 105,896 $ 76,677 $ 55,405 $ 66,297 $ 58,802 $ 235,790 $ 25,508 $ — $ 624,375 Commercial real estate: Multifamily risk ratings Pass $ 77,646 $ 118,725 $ 113,882 $ 70,112 $ 67,457 $ 123,518 $ 19,007 $ — $ 590,347 Special Mention 9,441 — — 603 24,687 772 9,259 — 44,762 Substandard — 4,371 — — — — — — 4,371 Doubtful/Loss — — — — — — — — — Total multifamily loans $ 87,087 $ 123,096 $ 113,882 $ 70,715 $ 92,144 $ 124,290 $ 28,266 $ — $ 639,480 Commercial real estate: Farmland risk ratings Pass $ 17,640 $ 25,003 $ 19,148 $ 12,834 $ 7,377 $ 17,129 $ 39,411 $ — $ 138,542 Special Mention — 2,567 — 1,271 227 3,107 2,258 — 9,430 Substandard — 700 — 602 — 1,214 2,004 — 4,520 Doubtful/Loss — — — — — — — — — Total farmland loans $ 17,640 $ 28,270 $ 19,148 $ 14,707 $ 7,604 $ 21,450 $ 43,673 $ — $ 152,492 Consumer loans: SFR 1-4 1st DT liens risk ratings Pass $ 183,719 $ 80,717 $ 36,342 $ 53,001 $ 46,467 $ 126,465 $ 76 $ 5,507 $ 532,294 Special Mention — 290 684 110 15 2,936 — 934 4,969 Substandard — — 1,174 929 935 5,763 — 528 9,329 Doubtful/Loss — — — — — — — — — Total SFR 1st DT liens $ 183,719 $ 81,007 $ 38,200 $ 54,040 $ 47,417 $ 135,164 $ 76 $ 6,969 $ 546,592 Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2020 (in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Consumer loans: SFR HELOCs and Junior Liens risk ratings Pass $ 793 $ — $ 13 $ 360 $ 300 $ 910 $ 297,160 $ 14,051 $ 313,587 Special Mention — — 16 — — 83 4,504 789 5,392 Substandard — — — — — 39 6,698 1,768 8,505 Doubtful/Loss — — — — — — — — — Total SFR HELOCs and Junior Liens $ 793 $ — $ 29 $ 360 $ 300 $ 1,032 $ 308,362 $ 16,608 $ 327,484 Consumer loans: Other risk ratings Pass $ 25,876 $ 29,539 $ 14,170 $ 4,238 $ 1,020 $ 967 $ 986 $ — $ 76,796 Special Mention 43 208 147 74 24 65 90 — 651 Substandard 58 82 210 74 12 140 9 — 585 Doubtful/Loss — — — — — — — — — Total other consumer loans $ 25,977 $ 29,829 $ 14,527 $ 4,386 $ 1,056 $ 1,172 $ 1,085 $ — $ 78,032 Commercial and industrial loans: Commercial and industrial risk ratings Pass $ 356,701 $ 48,838 $ 20,463 $ 13,151 $ 5,185 $ 9,490 $ 65,938 $ 1,085 $ 520,851 Special Mention — 102 698 195 20 178 207 11 1,411 Substandard — 301 53 1,142 823 148 1,519 79 4,065 Doubtful/Loss — — — — — — — — — Total commercial and industrial loans $ 356,701 $ 49,241 $ 21,214 $ 14,488 $ 6,028 $ 9,816 $ 67,664 $ 1,175 $ 526,327 Construction loans: Construction risk ratings Pass $ 69,133 $ 41,786 $ 92,191 $ 51,082 $ 20,868 $ 2,876 $ — $ — $ 277,936 Special Mention — — — 346 — 1,780 — — 2,126 Substandard — — — — 4,529 251 — — 4,780 Doubtful/Loss — — — — — — — — — Total construction loans $ 69,133 $ 41,786 $ 92,191 $ 51,428 $ 25,397 $ 4,907 $ — $ — $ 284,842 Agriculture production loans: Agriculture production risk ratings Pass $ 977 $ 2,079 $ 1,590 $ 1,838 $ 663 $ 708 $ 36,051 $ — $ 43,906 Special Mention — — 203 — 49 — — — 252 Substandard — — — — 6 — — — 6 Doubtful/Loss — — — — — — — — — Total agriculture production loans $ 977 $ 2,079 $ 1,793 $ 1,838 $ 718 $ 708 $ 36,051 $ — $ 44,164 Term Loans Amortized Cost Basis by Origination Year – As of December 31, 2020 (in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Leases: Lease risk ratings Pass $ 3,784 $ — $ — $ — $ — $ — $ — $ — $ 3,784 Special Mention — — — — — — — — — Substandard — — — — — — — — — Doubtful/Loss — — — — — — — — — Total leases $ 3,784 $ — $ — $ — $ — $ — $ — $ — $ 3,784 Total loans outstanding: Risk ratings Pass $ 962,685 $ 629,730 $ 507,345 $ 521,664 $ 383,401 $ 970,535 $ 560,867 $ 20,643 $ 4,556,870 Special Mention 9,484 10,622 13,728 15,457 43,750 33,893 28,523 1,734 157,191 Substandard 58 6,987 4,187 3,806 9,758 11,665 10,230 2,375 49,066 Doubtful/Loss — — — — — — — — — Total loans outstanding $ 972,227 $ 647,339 $ 525,260 $ 540,927 $ 436,909 $ 1,016,093 $ 599,620 $ 24,752 $ 4,763,127
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, 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 current and past due originated loans by loan category as of the date indicated: Analysis of Past Due Loans - As of December 31, 2020 (in thousands) 30-59 days 60-89 days > 90 days Total Past Current Total Commercial real estate: CRE non-owner occupied $ 127 $ 173 $ 239 $ 539 $ 1,535,016 $ 1,535,555 CRE owner occupied 297 — 824 1,121 623,254 624,375 Multifamily — — — — 639,480 639,480 Farmland 899 — 70 969 151,523 152,492 Total commercial real estate loans 1,323 173 1,133 2,629 2,949,273 2,951,902 Consumer: SFR 1-4 1st DT liens 37 — 960 997 545,595 546,592 SFR HELOCs and junior liens 418 212 1,671 2,301 325,183 327,484 Other 41 13 100 154 77,878 78,032 Total consumer loans 496 225 2,731 3,452 948,656 952,108 Commercial and industrial 155 426 105 686 525,641 526,327 Construction — — — — 284,842 284,842 Agriculture production — — — — 44,164 44,164 Leases — — — — 3,784 3,784 Total $ 1,974 $ 824 $ 3,969 $ 6,767 $ 4,756,360 $ 4,763,127
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, 2021 As of December 31, 2020 (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 $ 7,899 $ 7,899 $ — $ 3,110 $ 3,110 $ — CRE owner occupied 4,763 5,036 — 3,111 4,061 — Multifamily 4,457 4,457 — — — — Farmland 452 3,020 — 1,468 1,538 — Total commercial real estate loans 17,571 20,412 — 7,689 8,709 — Consumer: SFR 1-4 1st DT liens 3,594 3,595 — 4,950 5,093 — SFR HELOCs and junior liens 3,285 3,801 — 4,480 6,148 — Other 48 71 — 68 167 — Total consumer loans 6,927 7,467 — 9,498 11,408 — Commercial and industrial 1,904 2,416 — 652 2,183 — Construction 15 55 — 4,546 4,546 — Agriculture production — — — 5 18 — Leases — — — — — Sub-total 26,417 30,350 — 22,390 26,864 — Less: Guaranteed loans (713) (775) — (687) (811) — Total, net $ 25,704 $ 29,575 $ — $ 21,703 $ 26,053 $ —
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, 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 As of December 31, 2020 (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 $ 2,445 $ 435 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ 2,880 CRE owner occupied 796 1,176 1,668 — — — — — — — — 3,640 Multifamily — — — — — — — — — — — — Farmland — — — — — 1,538 — — — — — 1,538 Total commercial real estate loans 3,241 1,611 1,668 — — 1,538 — — — — — 8,058 Consumer: SFR 1-4 1st DT liens — — — — — — 5,068 — — — — 5,068 SFR HELOCs and junior liens — — — — — — 1,855 2,839 — — — 4,694 Other — — — 42 — — — — 97 — — 139 Total consumer loans — — — 42 — — 6,923 2,839 97 — — 9,901 Commercial and industrial — — — 292 — — — — — 1,173 75 1,540 Construction — — — — — — 4,547 — — — — 4,547 Agriculture production — — — — — — — — — 13 5 18 Leases — — — — — — — — — — Total $ 3,241 $ 1,611 $ 1,668 $ 334 $ — $ 1,538 $ 11,470 $ 2,839 $ 97 $ 1,186 $ 80 $ 24,064
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, 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 (dollars 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) TDR information for the year ended December 31, 2019 (in thousands) Number Pre-mod Post-mod Financial Number that Recorded Financial impact Commercial real estate: CRE non-owner occupied — $ — $ — $ — — $ — $ — CRE owner occupied 2 60 67 — — — — Multifamily — — — — — — — Farmland — — — — — — — Total commercial real estate loans 2 60 67 — — — — Consumer: SFR 1-4 1st DT liens 3 659 662 30 — — — SFR HELOCs and junior liens 3 214 215 29 — — — Other — — — — — — — Total consumer loans 6 873 877 59 — — — Commercial and industrial 10 1,918 1,885 — 1 7 — Construction — — — — — — — Agriculture production — — — — — — — Leases — — — — — — — Total 18 $ 2,851 $ 2,829 $ 59 $ 1 $ 7 $ —

Real Estate Owned (Tables)

Real Estate Owned (Tables)	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 Beginning balance, net $ 2,844 $ 2,541 Additions/transfers from loans 1,052 766 Dispositions/sales (1,458) (513) Valuation adjustments 156 50 Ending balance, net $ 2,594 $ 2,844 Ending valuation allowance $ — $ (22) Ending number of foreclosed assets 6 7 Proceeds from sale of real estate owned $ 1,526 $ 570 Gain on sale of real estate owned $ 233 $ 57

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Summary of Premises and Equipment	As of December 31, (in thousands) 2021 2020 Land and land improvements $ 29,002 $ 29,505 Buildings 64,382 65,334 Furniture and equipment 42,305 45,994 135,689 140,833 Less: Accumulated depreciation (58,401) (57,462) 77,288 83,371 Construction in progress 1,399 360 Total premises and equipment $ 78,687 $ 83,731

Cash Value of Life Insurance (T

Cash Value of Life Insurance (Tables)	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 Beginning balance $ 118,870 $ 117,823 Acquired policies from business combination — — Increase in cash value of life insurance 2,775 2,949 Gain on death benefit 702 498 Insurance proceeds receivable reclassified to other assets (4,490) (2,400) Ending balance $ 117,857 $ 118,870 End of period death benefit $ 193,318 $ 197,379 Number of policies owned 176 183 Insurance companies used 14 14 Current and former employees and directors covered 59 62

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2021
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 $ 220,872 $ — $ — $ 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, Additions Reductions/ December 31, Core deposit intangibles $ 37,163 $ — $ — $ 37,163 Accumulated amortization (24,794) — (5,464) (19,330) Core deposit intangibles, net $ 12,369 — $ (5,464) $ 17,833
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 2022 $ 4,776 2023 4,269 2024 2,482 2025 533 2026 309 Thereafter — $ 12,369

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	12 Months Ended
	Dec. 31, 2021
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, 2021 2020 2019 Balance at beginning of period $ 5,092 $ 6,200 $ 7,098 Additions 1,654 1,526 913 Change in fair value (872) (2,634) (1,811) Balance at end of period $ 5,874 $ 5,092 $ 6,200 Contractually specified servicing fees, late fees and ancillary fees earned $ 1,881 $ 1,855 $ 1,917 Balance of loans serviced at: Beginning of period $ 779,530 $ 767,662 $ 785,138 End of period $ 770,299 $ 779,530 $ 767,662 Period end: Weighted-average prepayment speed (CPR) 208.0 % 294.0 % 182.0 % Weighted-average expected life (years) 5.7 4.5 6.2 Weighted-average discount rate 12.0 % 12.0 % 12.0 %

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 Operating lease cost $ 5,201 $ 5,125 Short-term lease cost 241 263 Variable lease cost 11 5 Sublease income (24) (120) Total lease cost $ 5,429 $ 5,273 The following table presents supplemental cash flow information related to leases as of the periods ended: Year ended December 31, (in thousands) 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases $ 4,964 $ 4,927 ROUA obtained in exchange for operating lease liabilities $ 2,883 $ 4,161
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, 2021 2020 Weighted-average remaining lease term 9.3 years 9.9 years Weighted-average discount rate 2.9 % 3.1 %
Expected Future Operating Lease Payments	At December 31, 2021, future expected operating lease payments are as follows (in thousands): Periods ending December 31, 2022 $ 4,713 2023 4,071 2024 3,716 2025 3,132 2026 2,802 Thereafter 12,255 30,689 Discount for present value of expected cash flows (4,409) Lease liability at December 31, 2021 $ 26,280

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Summary of Balances of Deposits	A summary of the balances of deposits follows: (in thousands) December 31, 2021 2020 Noninterest-bearing demand $ 2,979,882 $ 2,581,517 Interest-bearing demand 1,568,682 1,414,908 Savings 2,520,959 2,164,942 Time certificates, $250,000 and over 44,652 73,147 Other time certificates 252,984 271,420 Total deposits $ 7,367,159 $ 6,505,934
Schedule of Maturities of Time Deposits	At December 31, 2021, the scheduled maturities of time deposits were as follows (in thousands): Scheduled 2022 $ 242,535 2023 31,852 2024 15,861 2025 4,069 2026 3,319 Thereafter — Total $ 297,636

Other Borrowings (Tables)

Other Borrowings (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Summary of Balances of Other Borrowings	A summary of the balances of other borrowings follows: December 31, 2021 2020 (in thousands) Other collateralized borrowings, fixed rate, as of December 31, 2021 and 2020 of 0.05%, payable on January 3, 2022 and January 4, 2021, respectively $ 50,087 $ 26,914 Total other borrowings $ 50,087 $ 26,914

Junior Subordinated Debt (Table

Junior Subordinated Debt (Tables)	12 Months Ended
	Dec. 31, 2021
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, 2021 December 31, 2020 Subordinated Debt Series Maturity Face Current Recorded Recorded TriCo Cap Trust I 10/7/2033 $ 20,619 3.05 % 3.29 % $ 20,619 $ 20,619 TriCo Cap Trust II 7/23/2034 20,619 2.55 % 2.67 % 20,619 20,619 North Valley Trust II 4/24/2033 6,186 3.25 % 3.38 % 5,403 5,304 North Valley Trust III 7/23/2034 5,155 2.80 % 2.92 % 4,291 4,199 North Valley Trust IV 3/15/2036 10,310 1.33 % 1.53 % 7,147 6,894 $ 62,889 $ 58,079 $ 57,635

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 Financial instruments whose amounts represent risk: Commitments to extend credit: Commercial loans $ 409,950 $ 462,422 Consumer loans 628,791 534,223 Real estate mortgage loans 333,764 202,306 Real estate construction loans 213,563 227,876 Standby letters of credit 21,871 15,056 Deposit account overdraft privilege 125,670 110,813

Stock Options and Other Equit_2

Stock Options and Other Equity-Based Incentive Instruments (Tables)	12 Months Ended
	Dec. 31, 2021
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, 2020 160,500 $12.63 to $23.21 $ 17.60 Options granted — — — Options exercised (32,000) $14.54 to $19.46 $ 17.10 Options forfeited — — — Outstanding at December 31, 2020 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
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, 2021: Currently Currently Not Total Number of options 78,825 — 78,825 Weighted average exercise price $ 19.28 $ — $ 19.28 Intrinsic value (in thousands) $ 1,867 $ — $ 1,867 Weighted average remaining contractual term (yrs.) 1.40 n/a 1.40
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, 2021 2020 2019 Intrinsic value of options exercised $ 1,476,000 $ 403,000 $ 4,169,000 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 $ — $ — $ 1,233,000
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, 2021 99,809 81,615 RSUs granted 47,029 $ 45.48 31,479 $ 39.15 Additional market plus service condition RSUs vested — 6,067 RSUs added through dividend credits 2,277 — RSUs released through vesting (45,492) (19,272) RSUs forfeited/expired (106) (126) Outstanding at December 31, 2021 103,517 99,763
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, 2021 2020 2019 Total compensation costs recognized in income Service condition vesting RSUs $ 1,728,000 $ 1,390,000 $ 1,161,000 Market plus service condition vesting RSUs $ 911,000 $ 646,000 $ 493,000 Excess tax benefit recognized in income Service condition vesting RSUs $ 626,000 $ 372,000 $ 141,000 Market plus service condition vesting RSUs $ 226,000 $ 194,000 $ 146,000

Non-interest Income and Expen_2

Non-interest Income and Expense (Tables)	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 2019 ATM and interchange fees $ 25,356 $ 21,660 $ 20,639 Service charges on deposit accounts 14,013 13,944 16,657 Other service fees 3,570 3,156 3,015 Mortgage banking service fees 1,881 1,855 1,917 Change in value of mortgage loan servicing rights (872) (2,634) (1,811) Total service charges and fees 43,948 37,981 40,417 Asset management and commission income 3,668 2,989 2,877 Increase in cash value of life insurance 2,775 2,949 3,029 Gain on sale of loans 9,580 9,122 3,282 Lease brokerage income 746 668 878 Sale of customer checks 459 414 529 Gain on sale of investment securities — 7 110 Gain (loss) on marketable equity securities (86) 64 86 Other 2,574 1,000 2,312 Total other noninterest income 19,716 17,213 13,103 Total noninterest income $ 63,664 $ 55,194 $ 53,520
Components of Noninterest Expense	The components of noninterest expense were as follows: Year Ended December 31, (in thousands) 2021 2020 2019 Base salaries, net of deferred loan origination costs $ 69,844 $ 70,164 $ 70,218 Incentive compensation 14,957 10,022 13,106 Benefits and other compensation costs 21,550 31,935 22,741 Total salaries and benefits expense 106,351 112,121 106,065 Occupancy 14,910 14,528 14,893 Data processing and software 13,985 13,504 13,517 Equipment 5,358 5,704 7,022 ATM and POS network charges 6,040 5,433 5,447 Merger and acquisition expense 1,523 — — Advertising 2,899 2,827 5,633 Professional fees 3,657 3,222 3,754 Intangible amortization 5,464 5,724 5,723 Telecommunications 2,253 2,601 3,190 Regulatory assessments and insurance 2,581 1,594 1,188 Courier service 1,214 1,414 1,308 Operational losses 964 1,168 986 Postage 710 1,068 1,258 Gain on sale or acquisition of foreclosed assets (233) (235) (246) (Gain) loss on disposal of fixed assets (439) 67 82 Other miscellaneous expense 11,038 12,018 15,637 Total other noninterest expense 71,924 70,637 79,392 Total noninterest expense $ 178,275 $ 182,758 $ 185,457

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
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, 2021 2020 2019 Current tax expense Federal $ 28,763 $ 22,104 $ 20,403 State 18,221 14,586 12,655 $ 46,984 36,690 33,058 Deferred tax expense Federal (872) (9,500) 695 State (64) (4,654) 997 (936) (14,154) 1,692 Total tax expense $ 46,048 $ 22,536 $ 34,750
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, 2021 2020 2019 Tax credits and other tax benefits – decrease in tax expense $ (4,224) $ (4,200) $ (2,546) Amortization – increase in tax expense $ 3,604 $ 3,581 $ 2,705
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) 2021 2020 2019 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % State income taxes, net of federal tax benefit 7.9 7.7 7.9 Tax-exempt interest on municipal obligations (0.5) (0.9) (0.7) Tax-exempt life insurance related income (0.5) (0.8) (0.6) Low income housing tax credits (2.6) (4.8) (2.3) Low income housing tax credit amortization 2.2 4.1 2.1 Equity compensation (0.1) 0.4 (0.4) Non-deductible merger expenses 0.1 — — Other 0.6 (0.9) 0.4 Effective Tax Rate 28.1 % 25.8 % 27.4 %
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, 2021 2020 Deferred tax assets: Allowance for losses and reserve for unfunded commitments $ 26,361 $ 28,159 Deferred compensation 1,758 1,786 Accrued pension liability — 383 Other accrued expenses 1,994 1,537 Additional unfunded status of the supplemental retirement plans 13,693 13,275 Operating lease liability 7,769 8,270 State taxes 3,251 2,870 Share based compensation 952 837 Nonaccrual interest 937 725 Acquisition cost basis 506 2,372 Unrealized loss on securities 116 — Tax credits 513 513 Net operating loss carryforwards 1,131 1,131 Other 813 327 Total deferred tax assets 59,794 62,185 Deferred tax liabilities: Securities income (762) (762) Depreciation (6,198) (7,231) Right of use asset (7,588) (8,232) Funded pension liability (709) — Securities accretion (846) (702) Mortgage servicing rights valuation (1,726) (1,490) Unrealized gain on securities — (5,671) Core deposit intangible (3,248) (4,812) Junior subordinated debt (1,422) (1,553) Prepaid expenses and other (488) (532) Total deferred tax liability (22,987) (30,985) Net deferred tax asset $ 36,807 $ 31,200

Earnings per Share (Tables)

Earnings per Share (Tables)	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 2019 Net income $ 117,655 $ 64,814 $ 92,072 Average number of common shares outstanding 29,721 29,917 30,478 Effect of dilutive stock options and restricted stock 161 111 167 Average number of common shares outstanding used to calculate diluted earnings per share 29,882 30,028 30,645 Options excluded from diluted earnings per share because the effect of these options was antidilutive — — —

Comprehensive Income (Tables)

Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 2019 Unrealized holding gains (losses) on available for sale securities before reclassifications $ (19,575) $ 15,803 $ 24,471 Amounts reclassified out of accumulated other comprehensive income: Realized gains on debt securities — (7) (110) Total amounts reclassified out of accumulated other — (7) (110) Unrealized holding gains (losses) on available for sale securities after reclassifications (19,575) 15,796 24,361 Tax effect 5,787 (4,670) (7,202) Unrealized holding gains (losses) on available for sale securities, net of tax (13,788) 11,126 17,159 Change in unfunded status of the supplemental retirement plans before reclassifications 3,497 645 (6,745) Amounts reclassified out of accumulated other comprehensive income: Amortization of prior service cost (58) (55) (54) Amortization of actuarial losses 254 9,309 408 Total amounts reclassified out of accumulated other 196 9,254 354 Change in unfunded status of the supplemental retirement plans after reclassifications 3,693 9,899 (6,391) Tax effect (1,091) (2,927) 1,889 Change in unfunded status of the supplemental retirement plans, net of tax 2,602 6,972 (4,502) Change in joint beneficiary agreement liability before reclassifications (113) (596) — Tax effect — — — Change in unfunded status of the supplemental retirement plans, net of tax (113) (596) — Total other comprehensive income (loss) $ (11,299) $ 17,502 $ 12,657
Components of Accumulated Other Comprehensive Loss	The components of accumulated other comprehensive income, included in shareholders’ equity, are as follows: Year Ended December 31, (in thousands) 2021 2020 Net unrealized gain (loss) on available for sale securities $ (392) $ 19,183 Tax effect 116 (5,671) Unrealized holding (gain) loss on available for sale securities, net of tax (276) 13,512 Unfunded status of the supplemental retirement plans 2,399 (1,294) Tax effect (709) 382 Unfunded status of the supplemental retirement plans, net of tax 1,690 (912) Joint beneficiary agreement liability, net of tax (433) (320) Accumulated other comprehensive income $ 981 $ 12,280

Retirement Plans (Tables)

Retirement Plans (Tables)	12 Months Ended
	Dec. 31, 2021
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) 2021 2020 2019 401(k) Plan benefits expense $ 1,211 $ 1,139 $ 1,119 401(k) Plan contributions made by the Company $ 1,121 $ 202 $ 1,003
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) 2021 2020 2019 ESOP benefits expense $ 1,888 $ 2,400 $ 2,500 ESOP contributions made by the Company $ 878 $ 1,951 $ 1,875
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) 2021 2020 2019 Deferred compensation earnings credits included in non-interest expense $ 176 $ 212 $ 363
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 $26,000 of the net actuarial loss reported in the following table as of December 31, 2021 as a component of net periodic benefit cost during 2021. December 31, (in thousands) 2021 2020 Transition obligation $ — $ — Prior service cost (28) (86) Net actuarial loss (2,371) 1,380 Amount included in accumulated other comprehensive income (loss) (2,399) 1,294 Deferred tax benefit 709 (382) Amount included in accumulated other comprehensive income (loss), net of tax $ (1,690) $ 912
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) 2021 2020 Change in benefit obligation: Benefit obligation at beginning of year $ (38,000) $ (36,737) Service cost (913) (2,225) Interest cost (898) (1,014) Actuarial (loss)/gain 3,580 640 Plan amendments — — Benefits paid 972 1,336 Benefit obligation at end of year $ (35,259) $ (38,000) Change in plan assets: Fair value of plan assets at beginning of year $ — $ — Fair value of plan assets at end of year $ — $ — Funded status $ (35,259) $ (38,000) Unrecognized net obligation existing at January 1, 1986 — Unrecognized net actuarial (loss)/gain (2,453) 1,380 Unrecognized prior service cost (28) (86) Accumulated other comprehensive income (loss) 2,481 (1,294) Accrued benefit cost $ (35,259) $ (38,000) Accumulated benefit obligation $ (34,015) $ (36,298)
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) 2021 2020 2019 Net pension cost included the following components: Service cost-benefits earned during the period $ 913 $ 2,225 $ 879 Interest cost on projected benefit obligation 898 1,014 1,131 Amortization of net obligation at transition — 1 2 Amortization of prior service cost (58) (55) (54) Recognized net actuarial loss 254 9,309 408 Net periodic pension cost $ 2,007 $ 12,494 $ 2,366
Assumptions Used in Accounting for Plans	The following table sets forth assumptions used in accounting for the plans: Year Ended December 31, 2021 2020 2019 Discount rate used to calculate benefit obligation 2.74 % 2.40 % 2.82 % Discount rate used to calculate net periodic pension cost 2.40 % 2.82 % 3.96 % Average annual increase in executive compensation 3.25 % 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 2022 $ 1,118 $ 1,118 2023 2,208 2,208 2024 2,214 2,214 2025 2,203 2,203 2026 2,160 2,160 2027-2031 10,294 10,294

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2021
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, 2019 $ 10,121 Advances/new loans 665 Removed/payments (3,953) Balance December 31, 2020 6,833 Advances/new loans 2,000 Removed/payments (2,517) Balance December 31, 2021 $ 6,316

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Recorded Amount of Assets and Liabilities Measured at Fair Value on Recurring Basis	The table below presents the recorded amount of assets and liabilities measured at fair value on a recurring basis (in thousands): Fair value at 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 751,549 — 751,549 — 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 Fair value at December 31, 2020 Total Level 1 Level 2 Level 3 Marketable equity securities $ 3,025 $ 3,025 $ — $ — Debt securities available for sale: Obligations of U.S. government agencies 812,374 — 812,374 — Obligations of states and political subdivisions 129,095 — 129,095 — Corporate bonds 2,544 — 2,544 — Asset backed securities 470,251 — 470,251 — Loans held for sale 6,268 — 6,268 — Mortgage servicing rights 5,092 — — 5,092 Total assets measured at fair value $ 1,428,649 $ 3,025 $ 1,420,532 $ 5,092
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, 2021, 2020, and 2019. Had there been any transfer into or out of Level 3 during 2021, 2020, or 2019, 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 2021: Mortgage servicing rights $ 5,092 — $ (872) $ 1,654 $ 5,874 2020: Mortgage servicing rights $ 6,200 — $ (2,634) $ 1,526 $ 5,092 2019: Mortgage servicing rights $ 7,098 — $ (1,811) $ 913 $ 6,200
Quantitative Information about Recurring Level 3 Fair Value Measurements	The following table presents quantitative information about recurring Level 3 fair value measurements at December 31, 2021 and 2020: December 31, 2021 Fair Value Valuation Unobservable Range, Mortgage Servicing Rights $5,874 Discounted Constant 187%-264%, 208% Discount rate 10%-14%, 12% December 31, 2020 Mortgage Servicing Rights $5,092 Discounted Constant 240%-333%, 294% 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 (in thousands): Year ended December 31, 2021 Total Level 1 Level 2 Level 3 Total Gains Fair value: Impaired loans $ 3,683 $ 3,683 $ (1,105) Year ended December 31, 2020 Total Level 1 Level 2 Level 3 Total Gains Fair value: Impaired loans $ 1,424 — — $ 1,424 $ (1,489) Real estate owned 979 — — 979 155 Total assets measured at fair value $ 2,403 — — $ 2,403 $ (1,334)
Quantitative Information about Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on Nonrecurring Basis	The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a nonrecurring basis at December 31, 2021 and 2020: December 31, 2021 Fair Value Valuation Technique Unobservable Inputs Range, Impaired loans $ 3,683 Sales comparison Adjustment for differences between Not meaningful; December 31, 2020 Fair Value Valuation Technique Unobservable Inputs Range, Impaired loans $ 1,424 Sales comparison Adjustment for differences between Not meaningful; Real estate owned (Residential) $ 824 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, 2021 December 31, 2020 Carrying Fair Carrying Fair Financial assets: Level 1 inputs: Cash and due from banks $ 57,032 $ 57,032 $ 77,253 $ 77,253 Cash at Federal Reserve and other banks 711,389 711,389 592,298 592,298 Level 2 inputs: Securities held to maturity 199,759 208,140 284,563 298,726 Restricted equity securities 17,250 N/A 17,250 N/A Level 3 inputs: Loans, net 4,831,248 4,880,044 4,671,280 4,753,027 Financial liabilities: Level 2 inputs: Deposits 7,367,159 7,366,422 6,505,934 6,507,235 Other borrowings 50,087 50,087 26,914 26,914 Level 3 inputs: Junior subordinated debt 58,079 57,173 57,635 56,632 Contract Fair Contract Fair Off-balance sheet: Level 3 inputs: Commitments (1) $ 1,586,068 $ 15,861 $ 1,426,827 $ 14,268 Standby letters of credit (1) 21,871 219 15,056 151 Overdraft privilege commitments (1) 125,670 1,257 110,813 1,108

TriCo Bancshares Condensed Fi_2

TriCo Bancshares Condensed Financial Statements (Parent Only) (Tables)	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Condensed Balance Sheets	Condensed Balance Sheets December 31, December 31, (In thousands) Assets Cash and cash equivalents $ 4,950 $ 13,297 Investment in Tri Counties Bank 1,047,577 967,949 Other assets 6,073 1,818 Total assets $ 1,058,600 $ 983,064 Liabilities and shareholders’ equity Other liabilities $ 337 $ 315 Junior subordinated debt 58,079 57,635 Total liabilities 58,416 57,950 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 29,730,424 and 29,727,214 shares at December 31, 2021 and 2020, respectively 532,244 530,835 Retained earnings 466,959 381,999 Accumulated other comprehensive income (loss), net 981 12,280 Total shareholders’ equity 1,000,184 925,114 Total liabilities and shareholders’ equity $ 1,058,600 $ 983,064
Condensed Statements of Income	Condensed Statements of Income Year Ended December 31, 2021 2020 2019 (In thousands) Net interest expense $ (2,128) $ (2,555) $ (3,272) Administration expense (985) (932) (877) Loss before equity in net income of Tri Counties Bank (3,113) (3,487) (4,149) Equity in net income of Tri Counties Bank: Distributed 31,571 63,419 32,669 Undistributed 88,289 3,851 62,326 Income tax benefit 908 1,031 1,226 Net income $ 117,655 $ 64,814 $ 92,072
Condensed Statements of Comprehensive Income	Condensed Statements of Comprehensive Income Year Ended December 31, 2021 2020 2019 (In thousands) Net income $ 117,655 $ 64,814 $ 92,072 Other comprehensive income (loss), net of tax: Increase (decrease) in unrealized gains on available for sale securities arising during the period (13,788) 11,126 17,159 Change in minimum pension liability 2,602 6,972 (4,502) Change in joint beneficiary agreement liablity (113) (596) — Other comprehensive income (loss) (11,299) 17,502 12,657 Comprehensive income $ 106,356 $ 82,316 $ 104,729
Condensed Statements of Cash Flows	Condensed Statements of Cash Flows Year Ended December 31, 2021 2020 2019 (In thousands) Operating activities: Net income $ 117,655 $ 64,814 $ 92,072 Adjustments to reconcile net income to net cash provided by operating activities: Undistributed equity in earnings of Tri Counties Bank (88,289) (3,851) (62,326) Equity compensation vesting expense 2,638 2,036 1,654 Net change in other assets and liabilities (6,427) (1,885) (1,580) Net cash provided by operating activities 25,577 61,114 29,820 Investing activities: None Financing activities: Issuance of common stock through option exercise 144 198 9 Repurchase of common stock (4,344) (26,720) (2,196) Cash dividends paid — common (29,724) (26,303) (24,999) Net cash used for financing activities (33,924) (52,825) (27,186) Net change in cash and cash equivalents (8,347) 8,289 2,634 Cash and cash equivalents at beginning of year 13,297 5,008 2,374 Cash and cash equivalents at end of year $ 4,950 $ 13,297 $ 5,008

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2021
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, 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 % Actual Required for Capital Adequacy Purposes Required to be (in thousands) Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020: Total Capital (to Risk Weighted Assets): Consolidated $ 793,433 15.22 % $ 547,352 10.50 % N/A N/A Tri Counties Bank $ 780,320 14.97 % $ 547,156 10.50 % $ 521,101 10.00 % Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 727,879 13.96 % $ 443,094 8.50 % N/A N/A Tri Counties Bank $ 714,811 13.72 % $ 442,936 8.50 % $ 416,881 8.00 % Common equity Tier 1 Capital (to Risk Weighted Assets): Consolidated $ 671,975 12.89 % $ 364,901 7.00 % N/A N/A Tri Counties Bank $ 714,811 13.72 % $ 364,771 7.00 % $ 338,716 6.50 % Tier 1 Capital (to Average Assets): Consolidated $ 727,879 9.93 % $ 293,138 4.00 % N/A N/A Tri Counties Bank $ 714,811 9.76 % $ 292,949 4.00 % $ 366,186 5.00 %

Summary of Quarterly Results _2

Summary of Quarterly Results of Operations (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2021
Quarterly Financial Information Disclosure [Abstract]
Results of Operations	The following table sets forth the results of operations for the four quarters of 2021 and 2020, 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. 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 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 2020 Quarters Ended (dollars in thousands, except per share data) December 31, September 30, June 30, March 31, Interest and dividend income: Loans: Discount accretion $ 1,960 $ 1,876 $ 2,587 $ 1,748 All other loan interest income 59,055 56,163 55,822 54,510 Total loan interest income 61,015 58,039 58,409 56,258 Debt securities, dividends and interest bearing cash at banks 7,066 7,399 8,739 10,259 Total interest income 68,081 65,438 67,148 66,517 Interest expense 1,659 1,984 2,489 3,325 Net interest income 66,422 63,454 64,659 63,192 Provision for credit losses 4,850 7,649 22,244 8,070 Net interest income after provision for loan losses 61,572 55,805 42,415 55,122 Noninterest income 16,580 15,137 11,657 11,820 Noninterest expense 45,745 46,714 45,550 44,749 Income before income taxes 32,407 24,228 8,522 22,193 Income tax expense 8,750 6,622 1,092 6,072 Net income $ 23,657 $ 17,606 $ 7,430 $ 16,121 Per common share: Net income (diluted) $ 0.79 $ 0.59 $ 0.25 $ 0.53 Dividends $ 0.22 $ 0.22 $ 0.22 $ 0.22

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Detail)	Jan. 01, 2020USD ($)	Dec. 31, 2021USD ($)trustsegmentofficecounty	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
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		$ 1,744,000
Number of business segments (in segments) | segment		1
Net unrealized gains (losses)		$ 718,000	$ (64,000)
Total shareholders' equity		1,000,184,000	925,114,000	$ 906,570,000	$ 827,373,000
Gain (loss) on marketable equity securities		(86,000)	64,000	86,000
Accrued interest write off		0	0	0
Security credit losses recognized		0	0	0
Credit loss		0	0	0
ASU 2016-13
Significant Of Accounting Policies [Line Items]
Allowance for credit loss	$ 18,913,000
Financing receivable, purchased with credit deterioration, discount (premium)	(481,000)
Retained Earnings
Significant Of Accounting Policies [Line Items]
Total shareholders' equity		$ 466,959,000	$ 381,999,000	367,794,000	$ 303,490,000
Retained Earnings | ASU 2016-13
Significant Of Accounting Policies [Line Items]
Taxes	5,449,000
Cumulative effect from change in accounting policies	$ 12,983,000
Cumulative Effect, Period of Adoption, Adjustment
Significant Of Accounting Policies [Line Items]
Total shareholders' equity				(12,983,000)
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings
Significant Of Accounting Policies [Line Items]
Total shareholders' equity				$ (12,983,000)
California
Significant Of Accounting Policies [Line Items]
Number of counties (in counties) | county		31
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
North Valley Bancorp
Significant Of Accounting Policies [Line Items]
Number of subsidiary business trusts (in trusts) | trust		3
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

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Estimated Fair Values of Investments Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities Available for Sale
Amortized Cost	$ 2,208,330	$ 1,395,081
Gross Unrealized Gains	16,413	25,225
Gross Unrealized Losses	(16,805)	(6,042)
Estimated Fair Value	2,207,938	1,414,264
Debt Securities Held to Maturity
Amortized Cost	199,759	284,563
Gross Unrealized Gains	8,381	14,163
Gross Unrealized Losses	0	0
Estimated Fair Value	208,140	298,726
Obligations of U.S. government agencies
Debt Securities Available for Sale
Amortized Cost	1,260,226	795,555
Gross Unrealized Gains	8,193	17,710
Gross Unrealized Losses	(11,030)	(891)
Estimated Fair Value	1,257,389	812,374
Debt Securities Held to Maturity
Amortized Cost	192,068	273,667
Gross Unrealized Gains	8,131	13,774
Gross Unrealized Losses	0	0
Estimated Fair Value	200,199	287,441
Obligations of states and political subdivisions
Debt Securities Available for Sale
Amortized Cost	187,197	123,347
Gross Unrealized Gains	5,832	5,748
Gross Unrealized Losses	(785)	0
Estimated Fair Value	192,244	129,095
Debt Securities Held to Maturity
Amortized Cost	7,691	10,896
Gross Unrealized Gains	250	389
Gross Unrealized Losses	0	0
Estimated Fair Value	7,941	11,285
Corporate bonds
Debt Securities Available for Sale
Amortized Cost	6,722	2,459
Gross Unrealized Gains	34	85
Gross Unrealized Losses	0	0
Estimated Fair Value	6,756	2,544
Asset backed securities
Debt Securities Available for Sale
Amortized Cost	754,185	473,720
Gross Unrealized Gains	2,354	1,682
Gross Unrealized Losses	(4,990)	(5,151)
Estimated Fair Value	$ 751,549	$ 470,251

Investment Securities - Additio

Investment Securities - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021USD ($)investmentSecurity	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Investment Securities [Line Items]
Credit loss	$ 0	$ 0	$ 0
Allowance for credit loss	0	0
Proceeds from sale of available for sale securities	0	229,000	127,066,000
Gain on sale of investment securities	0	7,000	$ 110,000
Realized gain		7,000
Securities pledged as collateral	423,892,000	$ 429,049,000
Residential real estate mortgage-backed securities	$ 1,254,790,000
Life of mortgage-backed securities	4 years 10 months 17 days
Obligations of U.S. government agencies
Investment Securities [Line Items]
Available for sale securities in unrealized loss position | investmentSecurity	49
Percentage of aggregate depreciation in unrealized losses	1.10%
Obligations of states and political subdivisions
Investment Securities [Line Items]
Available for sale securities in unrealized loss position | investmentSecurity	33
Percentage of aggregate depreciation in unrealized losses	1.38%
Asset backed securities
Investment Securities [Line Items]
Available for sale securities in unrealized loss position | investmentSecurity	35
Percentage of aggregate depreciation in unrealized losses	0.99%

Investment Securities - Amort_2

Investment Securities - Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amortized Cost
Due in one year	$ 7,601
Due after one year through five years	131,657
Due after five years through ten years	341,925
Due after ten years	1,727,147
Amortized Cost	2,208,330	$ 1,395,081
Estimated Fair Value
Due in one year	7,645
Due after one year through five years	130,955
Due after five years through ten years	342,606
Due after ten years	1,726,732
Totals	2,207,938	1,414,264
Amortized Cost
Due in one year	0
Due after one year through five years	1,766
Due after five years through ten years	16,612
Due after ten years	181,381
Amortized Cost	199,759	284,563
Estimated Fair Value
Due in one year	0
Due after one year through five years	1,890
Due after five years through ten years	17,090
Due after ten years	189,160
Totals	$ 208,140	$ 298,726

Investment Securities - Gross U

Investment Securities - Gross Unrealized Losses on Investment Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Debt Securities Available for Sale, Less than 12 months, Fair Value	$ 1,393,098	$ 212,087
Debt Securities Available for Sale, Less than 12 months, Unrealized Loss	(14,640)	(1,332)
Debt Securities Available for Sale, 12 months or more, Fair Value	153,834	297,020
Debt Securities Available for Sale, 12 months or more, Unrealized Loss	(2,165)	(4,710)
Debt Securities Available for Sale, Fair Value	1,546,932	509,107
Debt Securities, Available-for-sale Securities, Unrealized Loss Position, Accumulated Loss	(16,805)	(6,042)
Obligations of U.S. government agencies
Debt Securities, Available-for-sale [Line Items]
Debt Securities Available for Sale, Less than 12 months, Fair Value	947,108	160,543
Debt Securities Available for Sale, Less than 12 months, Unrealized Loss	(9,737)	(891)
Debt Securities Available for Sale, 12 months or more, Fair Value	44,086	0
Debt Securities Available for Sale, 12 months or more, Unrealized Loss	(1,293)	0
Debt Securities Available for Sale, Fair Value	991,194	160,543
Debt Securities, Available-for-sale Securities, Unrealized Loss Position, Accumulated Loss	(11,030)	(891)
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Debt Securities Available for Sale, Less than 12 months, Fair Value	56,153	0
Debt Securities Available for Sale, Less than 12 months, Unrealized Loss	(785)	0
Debt Securities Available for Sale, 12 months or more, Fair Value	0	0
Debt Securities Available for Sale, 12 months or more, Unrealized Loss	0	0
Debt Securities Available for Sale, Fair Value	56,153	0
Debt Securities, Available-for-sale Securities, Unrealized Loss Position, Accumulated Loss	(785)	0
Asset backed securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities Available for Sale, Less than 12 months, Fair Value	389,837	51,544
Debt Securities Available for Sale, Less than 12 months, Unrealized Loss	(4,118)	(441)
Debt Securities Available for Sale, 12 months or more, Fair Value	109,748	297,020
Debt Securities Available for Sale, 12 months or more, Unrealized Loss	(872)	(4,710)
Debt Securities Available for Sale, Fair Value	499,585	348,564
Debt Securities, Available-for-sale Securities, Unrealized Loss Position, Accumulated Loss	$ (4,990)	$ (5,151)

Loans - Summary of Loan Balance

Loans - Summary of Loan Balances (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Loans and Leases Receivable Disclosure [Line Items]
Total	$ 4,916,624	$ 4,763,127
Total principal balance of loans owed, net of charge-offs	4,946,653	4,805,596
Unamortized net deferred loan fees	(13,922)	(16,984)
Discounts to principal balance of loans owed, net of charge-offs	(16,107)	(25,485)
Allowance for credit losses	(85,376)	(91,847)	$ (30,616)	$ (32,582)
Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	3,306,054	2,951,902
Allowance for credit losses	(51,140)	(53,693)	(11,995)	(12,944)
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	1,071,551	952,108
Allowance for credit losses	(23,474)	(25,148)	(10,084)	(11,051)
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total	259,355	526,327
Allowance for credit losses	(3,862)	(4,252)	(4,867)	(5,610)
Construction
Loans and Leases Receivable Disclosure [Line Items]
Total	222,281	284,842
Allowance for credit losses	(5,667)	(7,540)	(3,388)	(2,497)
Agriculture production
Loans and Leases Receivable Disclosure [Line Items]
Total	50,811	44,164
Allowance for credit losses	(1,215)	(1,209)	(261)	(480)
Leases
Loans and Leases Receivable Disclosure [Line Items]
Total	6,572	3,784
Allowance for credit losses	(18)	(5)	(21)	0
CRE non-owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	1,603,141	1,535,555
Allowance for credit losses	(25,739)	(29,380)	(5,948)	(7,401)
CRE owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	706,307	624,375
Allowance for credit losses	(10,691)	(10,861)	(2,027)	(2,711)
Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	823,500	639,480
Allowance for credit losses	(12,395)	(11,472)	(3,352)	(2,429)
Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	173,106	152,492
Allowance for credit losses	(2,315)	(1,980)	(668)	(403)
SFR 1-4 1st DT liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	666,960	546,592
SFR HELOCs and junior liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	337,513	327,484
Allowance for credit losses	(10,510)	(11,771)	(6,183)	(7,582)
Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	67,078	78,032
Allowance for credit losses	$ (2,241)	$ (3,260)	$ (1,595)	$ (793)

Loans - Narrative (Details)

Loans - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 4,916,624				$ 4,763,127				$ 4,916,624	$ 4,763,127
Loans, including fees	60,804	$ 60,725	$ 60,304	$ 60,436	61,015	$ 58,039	$ 58,409	$ 56,258	242,269	233,721	$ 223,750
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	259,355				526,327				259,355	526,327
Commercial and industrial | Payment Protection Program (PPP)
Loans and Leases Receivable Disclosure [Line Items]
Loans	63,311				$ 333,982				63,311	333,982
Unamortized loan fee (cost)	$ 2,164								2,164
Loans, including fees									$ 14,148	$ 7,760

Allowance for Credit Losses - A

Allowance for Credit Losses - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Loans and Leases Receivable Disclosure [Line Items]
Allowance for credit loss	$ 85,376	$ 91,847	$ 30,616	$ 32,582
Interest lost on nonaccrual loans	2,226	1,804	1,201
Interest income on nonaccrual loans	471	$ 701	$ 372
Threshold for loan analysis	$ 1,000
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 - C

Allowance for Credit Losses - Components of Allowance for Credit Losses (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	$ 85,376	$ 91,847	$ 30,616	$ 32,582
Financial asset acquired with credit deterioration
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	0	0
Total allowance for credit losses
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	84,394	90,397
Qualitative and forecast factor allowance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	59,855	61,935
Quantitative (Cohort) model allowance reserves
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	24,539	28,462
Allowance for individually evaluated loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit loss	$ 982	$ 1,450

Allowance for Credit Losses - S

Allowance for Credit Losses - Summary of Activity in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 91,847	$ 30,616	$ 32,582
Charge-offs	(2,392)	(1,755)	(3,639)
Recoveries	3,086	1,885	3,363
Provision for (Benefit from) Credit Losses	(7,165)	42,188	(1,690)
Ending  Balance	85,376	91,847	30,616
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance	3,400	2,775
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	390	625
Ending  Balance	3,790	3,400	2,775
Credit Loss [Roll Forward]
Beginning Balance	95,247	33,391
Charge-offs	(2,392)	(1,755)
Recoveries	3,086	1,885
Provision for (Benefit from) Credit Losses	(6,775)	42,813
Ending  Balance	89,166	95,247	33,391
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	53,693	11,995	12,944
Charge-offs	(144)	(182)	(746)
Recoveries	806	226	1,528
Provision for (Benefit from) Credit Losses	(3,215)	29,806	(1,731)
Ending  Balance	51,140	53,693	11,995
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	25,148	10,084	11,051
Charge-offs	(751)	(799)	(770)
Recoveries	1,501	1,067	1,310
Provision for (Benefit from) Credit Losses	(2,424)	6,512	(1,507)
Ending  Balance	23,474	25,148	10,084
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	4,252	4,867	5,610
Charge-offs	(1,470)	(774)	(2,104)
Recoveries	755	568	513
Provision for (Benefit from) Credit Losses	325	1,552	848
Ending  Balance	3,862	4,252	4,867
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	7,540	3,388	2,497
Charge-offs	(27)	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	(1,846)	3,219	891
Ending  Balance	5,667	7,540	3,388
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	1,209	261	480
Charge-offs	0	0	(19)
Recoveries	24	24	12
Provision for (Benefit from) Credit Losses	(18)	1,103	(212)
Ending  Balance	1,215	1,209	261
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	5	21	0
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	13	(4)	21
Ending  Balance	18	5	21
Leases | Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	(12)
Ending  Balance		(12)
Mortgage Loans on Real Estate | Commercial loans
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning Balance			2,575
Provision for (Benefit from) Credit Losses			200
CRE non-owner occupied | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	29,380	5,948	7,401
Charge-offs	0	0	0
Recoveries	12	198	1,486
Provision for (Benefit from) Credit Losses	(3,653)	16,533	(2,939)
Ending  Balance	25,739	29,380	5,948
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	10,861	2,027	2,711
Charge-offs	(18)	0	(746)
Recoveries	794	28	42
Provision for (Benefit from) Credit Losses	(946)	6,525	20
Ending  Balance	10,691	10,861	2,027
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	11,472	3,352	2,429
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	923	5,839	923
Ending  Balance	12,395	11,472	3,352
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	1,980	668	403
Charge-offs	(126)	(182)	0
Recoveries	0	0	0
Provision for (Benefit from) Credit Losses	461	909	265
Ending  Balance	2,315	1,980	668
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	10,117	2,306	2,676
Charge-offs	(145)	(13)	(2)
Recoveries	13	416	54
Provision for (Benefit from) Credit Losses	738	4,733	(422)
Ending  Balance	10,723	10,117	2,306
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	11,771	6,183	7,582
Charge-offs	(29)	(116)	(3)
Recoveries	1,127	304	935
Provision for (Benefit from) Credit Losses	(2,359)	762	(2,331)
Ending  Balance	10,510	11,771	6,183
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	3,260	1,595	793
Charge-offs	(577)	(670)	(765)
Recoveries	361	347	321
Provision for (Benefit from) Credit Losses	(803)	1,017	1,246
Ending  Balance	2,241	3,260	$ 1,595
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 -_2

Allowance for Credit Losses - Schedule Credit Quality Indicators (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	$ 1,253,320	$ 972,227
Fiscal year before latest fiscal year	627,186	647,339
Two years before latest fiscal year	518,074	525,260
Three years before latest fiscal year	370,577	540,927
Four years before latest fiscal year	434,421	436,909
Prior	1,094,878	1,016,093
Revolving Loans Amortized Cost Basis	601,115	599,620
Revolving Loans Converted to Term	17,053	24,752
Total	4,916,624	4,763,127
Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	3,306,054	2,951,902
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	1,071,551	952,108
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	92,972	356,701
Fiscal year before latest fiscal year	20,350	49,241
Two years before latest fiscal year	27,550	21,214
Three years before latest fiscal year	11,639	14,488
Four years before latest fiscal year	7,230	6,028
Prior	7,268	9,816
Revolving Loans Amortized Cost Basis	91,306	67,664
Revolving Loans Converted to Term	1,040	1,175
Total	259,355	526,327
Construction
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	68,993	69,133
Fiscal year before latest fiscal year	80,039	41,786
Two years before latest fiscal year	58,383	92,191
Three years before latest fiscal year	4,849	51,428
Four years before latest fiscal year	1,716	25,397
Prior	8,301	4,907
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	222,281	284,842
Agriculture production
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	2,068	977
Fiscal year before latest fiscal year	878	2,079
Two years before latest fiscal year	1,393	1,793
Three years before latest fiscal year	951	1,838
Four years before latest fiscal year	940	718
Prior	895	708
Revolving Loans Amortized Cost Basis	43,686	36,051
Revolving Loans Converted to Term	0	0
Total	50,811	44,164
Leases
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	6,572	3,784
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	6,572	3,784
CRE non-owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	275,305	120,520
Fiscal year before latest fiscal year	127,299	215,354
Two years before latest fiscal year	208,150	168,871
Three years before latest fiscal year	134,827	262,668
Four years before latest fiscal year	229,710	197,443
Prior	576,219	481,764
Revolving Loans Amortized Cost Basis	51,631	88,935
Revolving Loans Converted to Term	0	0
Total	1,603,141	1,535,555
CRE owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	193,607	105,896
Fiscal year before latest fiscal year	104,571	76,677
Two years before latest fiscal year	64,837	55,405
Three years before latest fiscal year	50,224	66,297
Four years before latest fiscal year	58,818	58,802
Prior	211,505	235,790
Revolving Loans Amortized Cost Basis	22,745	25,508
Revolving Loans Converted to Term	0	0
Total	706,307	624,375
Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	278,942	87,087
Fiscal year before latest fiscal year	100,752	123,096
Two years before latest fiscal year	76,127	113,882
Three years before latest fiscal year	109,374	70,715
Four years before latest fiscal year	85,932	92,144
Prior	147,137	124,290
Revolving Loans Amortized Cost Basis	25,236	28,266
Revolving Loans Converted to Term	0	0
Total	823,500	639,480
Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	43,601	17,640
Fiscal year before latest fiscal year	17,399	28,270
Two years before latest fiscal year	23,118	19,148
Three years before latest fiscal year	15,119	14,707
Four years before latest fiscal year	10,904	7,604
Prior	22,345	21,450
Revolving Loans Amortized Cost Basis	40,620	43,673
Revolving Loans Converted to Term	0	0
Total	173,106	152,492
SFR 1-4 1st DT liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	269,846	183,719
Fiscal year before latest fiscal year	159,860	81,007
Two years before latest fiscal year	40,947	38,200
Three years before latest fiscal year	35,251	54,040
Four years before latest fiscal year	36,869	47,417
Prior	119,753	135,164
Revolving Loans Amortized Cost Basis	0	76
Revolving Loans Converted to Term	4,434	6,969
Total	666,960	546,592
SFR HELOCs and junior liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	494	793
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	29
Three years before latest fiscal year	0	360
Four years before latest fiscal year	0	300
Prior	240	1,032
Revolving Loans Amortized Cost Basis	325,200	308,362
Revolving Loans Converted to Term	11,579	16,608
Total	337,513	327,484
Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	20,920	25,977
Fiscal year before latest fiscal year	16,038	29,829
Two years before latest fiscal year	17,569	14,527
Three years before latest fiscal year	8,343	4,386
Four years before latest fiscal year	2,302	1,056
Prior	1,215	1,172
Revolving Loans Amortized Cost Basis	691	1,085
Revolving Loans Converted to Term	0	0
Total	67,078	78,032
Pass
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	1,234,027	962,685
Fiscal year before latest fiscal year	624,198	629,730
Two years before latest fiscal year	500,876	507,345
Three years before latest fiscal year	362,141	521,664
Four years before latest fiscal year	422,386	383,401
Prior	1,042,858	970,535
Revolving Loans Amortized Cost Basis	586,529	560,867
Revolving Loans Converted to Term	14,062	20,643
Total	4,787,077	4,556,870
Pass | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	92,972	356,701
Fiscal year before latest fiscal year	17,933	48,838
Two years before latest fiscal year	27,335	20,463
Three years before latest fiscal year	11,335	13,151
Four years before latest fiscal year	6,355	5,185
Prior	6,774	9,490
Revolving Loans Amortized Cost Basis	89,358	65,938
Revolving Loans Converted to Term	860	1,085
Total	252,922	520,851
Pass | Construction
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	66,318	69,133
Fiscal year before latest fiscal year	79,567	41,786
Two years before latest fiscal year	58,383	92,191
Three years before latest fiscal year	4,849	51,082
Four years before latest fiscal year	1,716	20,868
Prior	8,148	2,876
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	218,981	277,936
Pass | Agriculture production
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	2,068	977
Fiscal year before latest fiscal year	878	2,079
Two years before latest fiscal year	1,393	1,590
Three years before latest fiscal year	801	1,838
Four years before latest fiscal year	940	663
Prior	853	708
Revolving Loans Amortized Cost Basis	43,686	36,051
Revolving Loans Converted to Term	0	0
Total	50,619	43,906
Pass | Leases
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	6,572	3,784
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	6,572	3,784
Pass | CRE non-owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	275,305	120,520
Fiscal year before latest fiscal year	127,299	207,899
Two years before latest fiscal year	199,764	155,730
Three years before latest fiscal year	133,046	256,677
Four years before latest fiscal year	224,581	179,523
Prior	543,430	460,644
Revolving Loans Amortized Cost Basis	49,899	76,730
Revolving Loans Converted to Term	0	0
Total	1,553,324	1,457,723
Pass | CRE owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	178,092	105,896
Fiscal year before latest fiscal year	104,571	75,144
Two years before latest fiscal year	63,979	53,816
Three years before latest fiscal year	48,721	58,371
Four years before latest fiscal year	55,399	54,541
Prior	203,431	227,828
Revolving Loans Amortized Cost Basis	22,745	25,508
Revolving Loans Converted to Term	0	0
Total	676,938	601,104
Pass | Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	278,942	77,646
Fiscal year before latest fiscal year	100,752	118,725
Two years before latest fiscal year	71,822	113,882
Three years before latest fiscal year	109,374	70,112
Four years before latest fiscal year	85,932	67,457
Prior	146,984	123,518
Revolving Loans Amortized Cost Basis	25,236	19,007
Revolving Loans Converted to Term	0	0
Total	819,042	590,347
Pass | Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	43,601	17,640
Fiscal year before latest fiscal year	17,399	25,003
Two years before latest fiscal year	20,223	19,148
Three years before latest fiscal year	15,119	12,834
Four years before latest fiscal year	9,129	7,377
Prior	18,455	17,129
Revolving Loans Amortized Cost Basis	37,612	39,411
Revolving Loans Converted to Term	0	0
Total	161,538	138,542
Pass | SFR 1-4 1st DT liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	268,743	183,719
Fiscal year before latest fiscal year	159,860	80,717
Two years before latest fiscal year	40,661	36,342
Three years before latest fiscal year	30,880	53,001
Four years before latest fiscal year	36,197	46,467
Prior	113,519	126,465
Revolving Loans Amortized Cost Basis	0	76
Revolving Loans Converted to Term	3,527	5,507
Total	653,387	532,294
Pass | SFR HELOCs and junior liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	494	793
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	13
Three years before latest fiscal year	0	360
Four years before latest fiscal year	0	300
Prior	185	910
Revolving Loans Amortized Cost Basis	317,381	297,160
Revolving Loans Converted to Term	9,675	14,051
Total	327,735	313,587
Pass | Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	20,920	25,876
Fiscal year before latest fiscal year	15,939	29,539
Two years before latest fiscal year	17,316	14,170
Three years before latest fiscal year	8,016	4,238
Four years before latest fiscal year	2,137	1,020
Prior	1,079	967
Revolving Loans Amortized Cost Basis	612	986
Revolving Loans Converted to Term	0	0
Total	66,019	76,796
Special Mention
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	15,515	9,484
Fiscal year before latest fiscal year	2,463	10,622
Two years before latest fiscal year	8,898	13,728
Three years before latest fiscal year	4,505	15,457
Four years before latest fiscal year	9,136	43,750
Prior	28,666	33,893
Revolving Loans Amortized Cost Basis	7,063	28,523
Revolving Loans Converted to Term	1,215	1,734
Total	77,461	157,191
Special Mention | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	2,417	102
Two years before latest fiscal year	69	698
Three years before latest fiscal year	152	195
Four years before latest fiscal year	71	20
Prior	80	178
Revolving Loans Amortized Cost Basis	116	207
Revolving Loans Converted to Term	0	11
Total	2,905	1,411
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	346
Four years before latest fiscal year	0	0
Prior	0	1,780
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	2,126
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	203
Three years before latest fiscal year	150	0
Four years before latest fiscal year	0	49
Prior	42	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	192	252
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	7,455
Two years before latest fiscal year	8,386	11,692
Three years before latest fiscal year	399	5,407
Four years before latest fiscal year	4,390	15,773
Prior	20,612	18,832
Revolving Loans Amortized Cost Basis	1,732	12,205
Revolving Loans Converted to Term	0	0
Total	35,519	71,364
Special Mention | CRE owner occupied | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	15,515	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	288
Three years before latest fiscal year	289	7,451
Four years before latest fiscal year	2,964	2,955
Prior	3,833	6,140
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	22,601	16,834
Special Mention | Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	9,441
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	603
Four years before latest fiscal year	0	24,687
Prior	0	772
Revolving Loans Amortized Cost Basis	0	9,259
Revolving Loans Converted to Term	0	0
Total	0	44,762
Special Mention | Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	2,567
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	1,271
Four years before latest fiscal year	1,197	227
Prior	2,519	3,107
Revolving Loans Amortized Cost Basis	1,491	2,258
Revolving Loans Converted to Term	0	0
Total	5,207	9,430
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	290
Two years before latest fiscal year	286	684
Three years before latest fiscal year	3,282	110
Four years before latest fiscal year	416	15
Prior	1,476	2,936
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	383	934
Total	5,843	4,969
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	16
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	53	83
Revolving Loans Amortized Cost Basis	3,655	4,504
Revolving Loans Converted to Term	832	789
Total	4,540	5,392
Special Mention | Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	43
Fiscal year before latest fiscal year	46	208
Two years before latest fiscal year	157	147
Three years before latest fiscal year	233	74
Four years before latest fiscal year	98	24
Prior	51	65
Revolving Loans Amortized Cost Basis	69	90
Revolving Loans Converted to Term	0	0
Total	654	651
Substandard
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	3,778	58
Fiscal year before latest fiscal year	525	6,987
Two years before latest fiscal year	8,300	4,187
Three years before latest fiscal year	3,931	3,806
Four years before latest fiscal year	2,899	9,758
Prior	23,354	11,665
Revolving Loans Amortized Cost Basis	7,523	10,230
Revolving Loans Converted to Term	1,776	2,375
Total	52,086	49,066
Substandard | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	301
Two years before latest fiscal year	146	53
Three years before latest fiscal year	152	1,142
Four years before latest fiscal year	804	823
Prior	414	148
Revolving Loans Amortized Cost Basis	1,832	1,519
Revolving Loans Converted to Term	180	79
Total	3,528	4,065
Substandard | Construction
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	2,675	0
Fiscal year before latest fiscal year	472	0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	4,529
Prior	153	251
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	3,300	4,780
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	6
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	6
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	0	0
Two years before latest fiscal year	0	1,449
Three years before latest fiscal year	1,382	584
Four years before latest fiscal year	739	2,147
Prior	12,177	2,288
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	14,298	6,468
Substandard | 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	1,533
Two years before latest fiscal year	858	1,301
Three years before latest fiscal year	1,214	475
Four years before latest fiscal year	455	1,306
Prior	4,241	1,822
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	6,768	6,437
Substandard | Multifamily | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	4,371
Two years before latest fiscal year	4,305	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	153	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	4,458	4,371
Substandard | Farmland | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	0
Fiscal year before latest fiscal year	0	700
Two years before latest fiscal year	2,895	0
Three years before latest fiscal year	0	602
Four years before latest fiscal year	578	0
Prior	1,371	1,214
Revolving Loans Amortized Cost Basis	1,517	2,004
Revolving Loans Converted to Term	0	0
Total	6,361	4,520
Substandard | SFR 1-4 1st DT liens | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	1,103	0
Fiscal year before latest fiscal year	0	0
Two years before latest fiscal year	0	1,174
Three years before latest fiscal year	1,089	929
Four years before latest fiscal year	256	935
Prior	4,758	5,763
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	524	528
Total	7,730	9,329
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	2	39
Revolving Loans Amortized Cost Basis	4,164	6,698
Revolving Loans Converted to Term	1,072	1,768
Total	5,238	8,505
Substandard | Other | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current fiscal year	0	58
Fiscal year before latest fiscal year	53	82
Two years before latest fiscal year	96	210
Three years before latest fiscal year	94	74
Four years before latest fiscal year	67	12
Prior	85	140
Revolving Loans Amortized Cost Basis	10	9
Revolving Loans Converted to Term	0	0
Total	405	585
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	0
Fiscal year before latest fiscal year		0
Two years before latest fiscal year	0	0
Three years before latest fiscal year	0	0
Four years before latest fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Doubtful/Loss | Construction
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 -_3

Allowance for Credit Losses - Analysis of Past Due and Nonaccrual Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Loans	$ 4,916,624	$ 4,763,127
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	3,306,054	2,951,902
Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,071,551	952,108
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	259,355	526,327
Construction
Financing Receivable, Past Due [Line Items]
Loans	222,281	284,842
Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	50,811	44,164
Leases
Financing Receivable, Past Due [Line Items]
Loans	6,572	3,784
CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	1,603,141	1,535,555
CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	706,307	624,375
Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	823,500	639,480
Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	173,106	152,492
SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	666,960	546,592
SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	337,513	327,484
Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	67,078	78,032
Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	4,916,624	4,763,127
Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	3,306,054	2,951,902
Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,071,551	952,108
Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	259,355	526,327
Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	222,281	284,842
Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	50,811	44,164
Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	6,572	3,784
Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	1,603,141	1,535,555
Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	706,307	624,375
Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	823,500	639,480
Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	173,106	152,492
Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	666,960	546,592
Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	337,513	327,484
Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	67,078	78,032
Total Past Due Loans | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	4,332	6,767
Total Past Due Loans | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	1,509	2,629
Total Past Due Loans | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	2,128	3,452
Total Past Due Loans | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	557	686
Total Past Due Loans | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	90	0
Total Past Due Loans | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	48	0
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	263	539
Total Past Due Loans | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	671	1,121
Total Past Due Loans | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
Total Past Due Loans | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	575	969
Total Past Due Loans | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	375	997
Total Past Due Loans | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,609	2,301
Total Past Due Loans | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	144	154
30-59 days | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	836	1,974
30-59 days | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	497	1,323
30-59 days | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	145	496
30-59 days | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	146	155
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	48	0
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	226	127
30-59 days | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	271	297
30-59 days | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
30-59 days | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	899
30-59 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	0	37
30-59 days | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	36	418
30-59 days | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	109	41
60-89 days | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	880	824
60-89 days | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	164	173
60-89 days | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	381	225
60-89 days | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	245	426
60-89 days | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	90	0
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	37	173
60-89 days | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	127	0
60-89 days | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
60-89 days | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
60-89 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	13	0
60-89 days | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	361	212
60-89 days | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	7	13
> 90 days | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	2,616	3,969
> 90 days | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	848	1,133
> 90 days | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,602	2,731
> 90 days | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	166	105
> 90 days | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	0	0
> 90 days | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	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	239
> 90 days | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	273	824
> 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	575	70
> 90 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	362	960
> 90 days | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,212	1,671
> 90 days | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	28	100
Current | Financial asset originated
Financing Receivable, Past Due [Line Items]
Loans	4,912,292	4,756,360
Current | Financial asset originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	3,304,545	2,949,273
Current | Financial asset originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,069,423	948,656
Current | Financial asset originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	258,798	525,641
Current | Financial asset originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	222,191	284,842
Current | Financial asset originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	50,763	44,164
Current | Financial asset originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	6,572	3,784
Current | Financial asset originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	1,602,878	1,535,016
Current | Financial asset originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	705,636	623,254
Current | Financial asset originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	823,500	639,480
Current | Financial asset originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	172,531	151,523
Current | Financial asset originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	666,585	545,595
Current | Financial asset originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	335,904	325,183
Current | Financial asset originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	$ 66,934	$ 77,878

Allowance for Credit Losses -_4

Allowance for Credit Losses - Schedule of Non Accrual Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	$ 25,704	$ 21,703
Non accrual, no allowance including guaranteed loans	26,417	22,390
Non accrual including guaranteed loans	30,350	26,864
Total non accrual	29,575	26,053
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	713	687
Total non accrual	775	811
Commercial real estate
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	17,571	7,689
Total non accrual	20,412	8,709
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	6,927	9,498
Total non accrual	7,467	11,408
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	1,904	652
Total non accrual	2,416	2,183
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	15	4,546
Total non accrual	55	4,546
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	0	5
Total non accrual	0	18
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
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	7,899	3,110
Total non accrual	7,899	3,110
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	4,763	3,111
Total non accrual	5,036	4,061
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	4,457	0
Total non accrual	4,457	0
Past due 90 days or more and still accruing	0	0
Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	452	1,468
Total non accrual	3,020	1,538
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	3,594	4,950
Total non accrual	3,595	5,093
Past due 90 days or more and still accruing	0	0
SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Non accrual with no allowance for credit losses	3,285	4,480
Total non accrual	3,801	6,148
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	48	68
Total non accrual	71	167
Past due 90 days or more and still accruing	$ 0	$ 0

Allowance for Credit Losses -_5

Allowance for Credit Losses - Amortized Cost Basis of Collateral Dependent Loans, By Class of Loan (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 4,916,624	$ 4,763,127
Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,591	3,241
Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,253	1,611
Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,545	1,668
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	7,315	334
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,458	0
Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,027	1,538
SFR -1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,253	11,470
SFR -2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,636	2,839
Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5	97
A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,162	1,186
Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	117	80
Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	27,362	24,064
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	3,306,054	2,951,902
Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,591	3,241
Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,253	1,611
Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,545	1,668
Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	7,272	0
Commercial real estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,458	0
Commercial real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,027	1,538
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	18,146	8,058
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,071,551	952,108
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	43	42
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	5,238	6,923
Consumer | SFR -2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,636	2,839
Consumer | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5	97
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	5	0
Consumer | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,927	9,901
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	259,355	526,327
Commercial and industrial | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Commercial and industrial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	292
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	2,162	1,173
Commercial and industrial | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	112	75
Commercial and industrial | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,274	1,540
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	222,281	284,842
Construction | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Construction | SFR -1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	15	4,547
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	15	4,547
Agriculture production
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	50,811	44,164
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	13
Agriculture production | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	5
Agriculture production | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	18
Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	6,572	3,784
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	1,603,141	1,535,555
CRE non-owner occupied | Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,591	2,445
CRE non-owner occupied | Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,253	435
CRE non-owner occupied | Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,545	0
CRE non-owner occupied | Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	7,272	0
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	12,661	2,880
CRE owner occupied | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	706,307	624,375
CRE owner occupied | Commercial real estate | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	796
CRE owner occupied | Commercial real estate | Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	1,176
CRE owner occupied | Commercial real estate | Warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	1,668
CRE owner occupied | Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	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	0	3,640
Multifamily | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	823,500	639,480
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	4,458	0
Multifamily | Commercial real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | SFR -1st Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | SFR -2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Automobile/Truck
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | A/R and Inventory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	0	0
Multifamily | Commercial real estate | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,458	0
Farmland | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	173,106	152,492
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	1,027	1,538
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	1,027	1,538
SFR 1-4 1st DT liens | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	666,960	546,592
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	3,589	5,068
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	3,589	5,068
SFR HELOCs and junior liens | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	337,513	327,484
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	1,649	1,855
SFR HELOCs and junior liens | Consumer | SFR -2nd Deed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,636	2,839
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	3,285	4,694
Other | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	67,078	78,032
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	43	42
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	5	97
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	5	0
Other | Consumer | Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 53	$ 139

Allowance for Credit Losses - T

Allowance for Credit Losses - Troubled Debt Restructurings (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)investmentSecurity	Dec. 31, 2020USD ($)investmentSecurity	Dec. 31, 2019USD ($)investmentSecurity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	16	18	18
Pre-mod outstanding principal balance	$ 9,083	$ 6,010	$ 2,851
Post-mod outstanding principal balance	9,116	6,074	2,829
Financial impact due to TDR taken as additional provision	$ 2,521	$ 471	$ 59
Number that defaulted during the period (in investment securities) | investmentSecurity	5,000	8,000	1
Recorded investment of TDR's that defaulted during the period	$ 1,107	$ 2,862	$ 7
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ (5)	$ (90)	$ 0
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	8	10	2
Pre-mod outstanding principal balance	$ 6,407	$ 3,732	$ 60
Post-mod outstanding principal balance	6,401	3,827	67
Financial impact due to TDR taken as additional provision	$ 1,812	$ 381	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	3,000	3,000	0
Recorded investment of TDR's that defaulted during the period	$ 847	$ 1,542	$ 0
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	1	2	6
Pre-mod outstanding principal balance	$ 200	$ 172	$ 873
Post-mod outstanding principal balance	247	169	877
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 59
Number that defaulted during the period (in investment securities) | investmentSecurity	0	5,000	0
Recorded investment of TDR's that defaulted during the period	$ 0	$ 1,320	$ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ (90)	$ 0
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number (in investments) | investmentSecurity	7	6	10
Pre-mod outstanding principal balance	$ 2,476	$ 2,106	$ 1,918
Post-mod outstanding principal balance	2,468	2,078	1,885
Financial impact due to TDR taken as additional provision	$ 709	$ 90	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	2,000	0	1
Recorded investment of TDR's that defaulted during the period	$ 260	$ 0	$ 7
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ (5)	$ 0	$ 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	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
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	5	1	0
Pre-mod outstanding principal balance	$ 4,966	$ 319	$ 0
Post-mod outstanding principal balance	4,956	314	0
Financial impact due to TDR taken as additional provision	$ 1,020	$ 314	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	0	1,000	0
Recorded investment of TDR's that defaulted during the period	$ 0	$ 141	$ 0
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	4	2
Pre-mod outstanding principal balance	$ 740	$ 1,847	$ 60
Post-mod outstanding principal balance	742	1,877	67
Financial impact due to TDR taken as additional provision	$ 742	$ 67	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	0	1,000	0
Recorded investment of TDR's that defaulted during the period	$ 0	$ 950	$ 0
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	2	5	0
Pre-mod outstanding principal balance	$ 701	$ 1,566	$ 0
Post-mod outstanding principal balance	703	1,636	0
Financial impact due to TDR taken as additional provision	$ 50	$ 0	$ 0
Number that defaulted during the period (in investment securities) | investmentSecurity	3,000	1,000	0
Recorded investment of TDR's that defaulted during the period	$ 847	$ 451	$ 0
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	3
Pre-mod outstanding principal balance	$ 0	$ 0	$ 659
Post-mod outstanding principal balance	0	0	662
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 30
Number that defaulted during the period (in investment securities) | investmentSecurity	0	3,000	0
Recorded investment of TDR's that defaulted during the period	$ 0	$ 1,180	$ 0
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	1	2	3
Pre-mod outstanding principal balance	$ 200	$ 172	$ 214
Post-mod outstanding principal balance	247	169	215
Financial impact due to TDR taken as additional provision	$ 0	$ 0	$ 29
Number that defaulted during the period (in investment securities) | investmentSecurity	0	2,000	0
Recorded investment of TDR's that defaulted during the period	$ 0	$ 140	$ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions	$ 0	$ (90)	$ 0
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, 2021USD ($)asset	Dec. 31, 2020USD ($)asset
Repossessed Assets [Abstract]
Beginning balance, net	$ 2,844	$ 2,541
Additions/transfers from loans	1,052	766
Dispositions/sales	(1,458)	(513)
Valuation adjustments	156	50
Ending balance, net	2,594	2,844
Ending valuation allowance	$ 0	$ (22)
Ending number of foreclosed assets (in assets) | asset	6	7
Proceeds from sale of real estate owned	$ 1,526	$ 570
Gain on sale of real estate owned	$ 233	$ 57

Real Estate Owned - Additional

Real Estate Owned - Additional Information (Detail)	Dec. 31, 2021USD ($)property
Schedule Of Foreclosed Assets Activity [Line Items]
Formal foreclosure proceedings | $	$ 0
Residential Real Estate
Schedule Of Foreclosed Assets Activity [Line Items]
Number of foreclosed properties (in properties) | property	4

Premises and Equipment - Summar

Premises and Equipment - Summary of Premises and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Less: Accumulated depreciation	$ (58,401)	$ (57,462)
Premises and equipment, net	78,687	83,731
Depreciable premises and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	135,689	140,833
Premises and equipment, net	77,288	83,371
Land and land improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	29,002	29,505
Buildings
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	64,382	65,334
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	42,305	45,994
Construction in progress
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 1,399	$ 360

Premises and Equipment - Additi

Premises and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Depreciation expense for premises and equipment	$ 5,936	$ 6,100	$ 6,472

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, 2021USD ($)companyemployeepolicy	Dec. 31, 2020USD ($)employeecompanypolicy	Dec. 31, 2019USD ($)
Insurance [Line Items]
Beginning balance	$ 118,870	$ 117,823
Increase in cash value of life insurance	2,775	2,949	$ 3,029
Gain on death benefit	702	498	831
Insurance proceeds receivable reclassified to other assets	(4,490)	(2,400)
Ending balance	117,857	118,870	$ 117,823
End of period death benefit	$ 193,318	$ 197,379
Number of policies owned (in policies) | policy	176	183
Insurance companies used (in companies) | company	14	14
Current and former employees and directors covered (in employees) | employee	59	62
FNBB
Insurance [Line Items]
Acquired policies from business combination	$ 0	$ 0

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Summary of Goodwill Intangible (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Beginning balance	$ 220,872
Additions	0
Reductions	0
Ending balance	$ 220,872

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Additional Information (Detail)	Mar. 18, 2016USD ($)branch	Sep. 30, 2021USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Jul. 06, 2018USD ($)	Oct. 03, 2014USD ($)	Sep. 23, 2011USD ($)
Finite-Lived Intangible Assets [Line Items]
Impairment charges		$ 0	$ 0	$ 0	$ 0
FNBB
Finite-Lived Intangible Assets [Line Items]
Additions to core deposit intangibles						$ 27,605,000
Bank of America
Finite-Lived Intangible Assets [Line Items]
Additions to core deposit intangibles	$ 2,046,000
Number of branches (in branches) | branch	3
North Valley Bancorp
Finite-Lived Intangible Assets [Line Items]
Additions to core deposit intangibles							$ 6,614,000
Citizens
Finite-Lived Intangible Assets [Line Items]
Additions to core deposit intangibles								$ 898,000

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Summary of Core Deposit Intangibles (Detail) - Core deposit intangibles $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)
Finite-Lived Intangible Assets [Line Items]
Core deposit intangibles, beginning balance	$ 37,163
Core deposit intangibles, additions	0
Core deposit intangibles, reductions/amortization	0
Core deposit intangibles, ending balance	37,163
Accumulated amortization, beginning balance	(19,330)
Accumulated amortization, additions	0
Accumulated amortization, reductions/amortization	(5,464)
Accumulated amortization, ending balance	(24,794)
Core deposit intangibles, net, beginning balance	17,833
Core deposit intangibles, net, additions	0
Core deposit intangibles, net, reductions/amortization	(5,464)
Core deposit intangibles, net, ending balance	$ 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, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
2022	$ 4,776
2023	4,269
2024	2,482
2025	533
2026	309
Thereafter	0
Total	$ 12,369	$ 17,833

Mortgage Servicing Rights - Fai

Mortgage Servicing Rights - Fair Value of Mortgage Servicing Rights (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)yr	Dec. 31, 2020USD ($)yr	Dec. 31, 2019USD ($)yr
Servicing Assets at Fair Value [Line Items]
Contractually specified servicing fees, late fees and ancillary fees earned	$ 1,881	$ 1,855	$ 1,917
Mortgage servicing rights
Servicing Assets at Fair Value [Line Items]
Balance at beginning of period	5,092	6,200	7,098
Additions	1,654	1,526	913
Change in fair value	(872)	(2,634)	(1,811)
Balance at end of period	$ 5,874	$ 5,092	$ 6,200
Constant prepayment rate
Servicing Assets at Fair Value [Line Items]
Fair value of mortgage servicing rights, weighted average	2.080	2.940	1.820
Expected life (years)
Servicing Assets at Fair Value [Line Items]
Fair value of mortgage servicing rights, weighted average | yr	5.7	4.5	6.2
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	$ 779,530	$ 767,662	$ 785,138
Balance at end of period	$ 770,299	$ 779,530	$ 767,662

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 5,201	$ 5,125
Short-term lease cost	241	263
Variable lease cost	11	5
Sublease income	(24)	(120)
Total lease cost	$ 5,429	$ 5,273

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating cash flows for operating leases	$ 4,964	$ 4,927	$ 4,931
ROUA obtained in exchange for operating lease liabilities	$ 2,883	$ 4,161

Leases - Lease Term and Discoun

Leases - Lease Term and Discount Rate (Detail)	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Weighted-average remaining lease term	9 years 3 months 18 days	9 years 10 months 24 days
Weighted-average discount rate	2.90%	3.10%

Leases - Future Expected Operat

Leases - Future Expected Operating Lease Payments (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
2022	$ 4,713
2023	4,071
2024	3,716
2025	3,132
2026	2,802
Thereafter	12,255
Total	30,689
Discount for present value of expected cash flows	(4,409)
Operating lease liability	$ 26,280	$ 27,973

Deposits - Summary of Balances

Deposits - Summary of Balances of Deposits (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deposits [Abstract]
Noninterest-bearing demand	$ 2,979,882	$ 2,581,517
Interest-bearing demand	1,568,682	1,414,908
Savings	2,520,959	2,164,942
Time certificates, $250,000 and over	44,652	73,147
Other time certificates	252,984	271,420
Total deposits	$ 7,367,159	$ 6,505,934

Deposits - Additional Informati

Deposits - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Deposits [Line Items]
Overdrawn deposit balances classified as consumer loans	$ 2,324	$ 985
California
Schedule Of Deposits [Line Items]
Certificate of deposits, included in time certificates, over $250,000	$ 1,000	$ 10,000

Deposits - Schedule of Maturiti

Deposits - Schedule of Maturities of Time Deposits (Detail) $ in Thousands	Dec. 31, 2021USD ($)
Summary of maturities of time deposits [Abstract]
2022	$ 242,535
2023	31,852
2024	15,861
2025	4,069
2026	3,319
Thereafter	0
Total	$ 297,636

Other Borrowings - Summary of B

Other Borrowings - Summary of Balances of Other Borrowings (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total other borrowings	$ 50,087	$ 26,914
0.05% Fixed Rate Collateralized Borrowings
Debt Instrument [Line Items]
Other collateralized borrowings, fixed rate, as of December 31, 2021 and 2020 of 0.05%, payable on January 3, 2022 and January 4, 2021, respectively	$ 50,087	$ 26,914

Other Borrowings - Summary of_2

Other Borrowings - Summary of Balances of Other Borrowings Parenthetical (Detail)	Dec. 31, 2021	Dec. 31, 2020
0.05% Fixed Rate Collateralized Borrowings
Debt Instrument [Line Items]
Collateralized borrowing, fixed rate	0.05%	0.05%

Other Borrowings - Additional I

Other Borrowings - Additional Information (Detail)	Dec. 31, 2021USD ($)
Debt Disclosure [Abstract]
Repurchase investment securities sold and pledged as collateral under securities repurchase agreement	$ 50,087,000
FHLB collateral line of credit, maximum borrowings capacity	2,251,285,000
FHLB collateral line of credit, outstanding balance	0
Loans designated as potential collateral under collateralized line of credit with FHLB	72,108,000
Investment securities designated as potential collateral under collateral line of credit	3,486,380,000
Collateralized line of credit with San Francisco Federal Reserve Bank, maximum borrowings capacity	184,694,000
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	7,000
Loans designated as potential collateral under collateral line of credit with San Francisco Federal Reserve Bank	308,299,000
Unused correspondent banking lines of credit from commercial banks for federal funds	$ 60,000,000

Junior Subordinated Debt - Addi

Junior Subordinated Debt - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)locationtrust	Dec. 31, 2020USD ($)
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
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, 2021	Dec. 31, 2020
Subordinated Borrowing [Line Items]
Face Value	$ 62,889
Recorded Book Value	58,079	$ 57,635
TriCo Cap Trust I
Subordinated Borrowing [Line Items]
Face Value	$ 20,619
Current Coupon Rate	3.29%
Recorded Book Value	$ 20,619	20,619
TriCo Cap Trust II
Subordinated Borrowing [Line Items]
Face Value	$ 20,619
Current Coupon Rate	2.67%
Recorded Book Value	$ 20,619	20,619
North Valley Trust II
Subordinated Borrowing [Line Items]
Face Value	$ 6,186
Current Coupon Rate	3.38%
Recorded Book Value	$ 5,403	5,304
North Valley Trust III
Subordinated Borrowing [Line Items]
Face Value	$ 5,155
Current Coupon Rate	2.92%
Recorded Book Value	$ 4,291	4,199
North Valley Trust IV
Subordinated Borrowing [Line Items]
Face Value	$ 10,310
Current Coupon Rate	1.53%
Recorded Book Value	$ 7,147	$ 6,894
LIBOR PLUS | TriCo Cap Trust I
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. LIBOR +	3.05%
LIBOR PLUS | TriCo Cap Trust II
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. LIBOR +	2.55%
LIBOR PLUS | North Valley Trust II
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. LIBOR +	3.25%
LIBOR PLUS | North Valley Trust III
Subordinated Borrowing [Line Items]
Coupon Rate (Variable) 3 mo. LIBOR +	2.80%
LIBOR PLUS | North Valley Trust IV
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, 2021USD ($)$ / sharesshares	Dec. 31, 2020shares
Conversion of Stock [Line Items]
Letters of credit, issue period	one year
Common stock, shares outstanding (in shares)	29,730,424	29,727,214
Conversion ratio	1.6228
Common Class B
Conversion of Stock [Line Items]
Common stock, shares outstanding (in shares)	13,396
Common Class A
Conversion of Stock [Line Items]
The value of the Class A shares | $ / shares	$ 216.71
Value of unredeemed Class A equivalent shares | $	$ 4,711

Commitments and Contingencies_2

Commitments and Contingencies - Summary of Bank's Commitments and Contingent Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
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	213,563	227,876
Real estate mortgage loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	333,764	202,306
Standby letters of credit (1)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	21,871	15,056
Commercial loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	409,950	462,422
Consumer loans
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	628,791	534,223
Deposit account overdraft privilege
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to extend credit	$ 125,670	$ 110,813

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Feb. 25, 2021	Dec. 31, 2018
Class of Stock [Line Items]
Cash dividends received	$ 31,571,000	$ 63,419,000	$ 32,669,000
Repurchase of common stock (in shares)				2,000,000
Stock repurchase plan percentage of common stock				6.70%
Stock repurchase plan, number of shares repurchased (in shares)			0
Common stock, shares outstanding (in shares)	29,730,424	29,727,214
Stock repurchase plan, amount of shares repurchased	$ 4,958,000	$ 27,069,000	$ 5,108,000
Market value of shares repurchased under equity compensation plans	$ 2,118,000	$ 736,000	$ 5,108,000
Stock options
Class of Stock [Line Items]
Company's common stock in lieu of cash to exercise options to purchase shares (in shares)	28,276	12,488	115,954
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)	19,413	12,058	15,242
Maximum
Class of Stock [Line Items]
Amount available to dividend to holding company	$ 154,466,000
2021 Stock Repurchase Plan
Class of Stock [Line Items]
Cumulative number of shares repurchased (in shares)	63,317
2019 Stock Repurchase Plan
Class of Stock [Line Items]
Cumulative number of shares repurchased (in shares)		858,717
Stock repurchase plan, number of shares repurchased (in shares)	223
Common Stock
Class of Stock [Line Items]
Stock repurchase plan, number of shares repurchased (in shares)	111,229	883,263	131,196
Common stock, shares outstanding (in shares)	29,730,424	29,727,214	30,523,824		30,417,223
Stock repurchase plan, amount of shares repurchased	$ 1,987,000	$ 15,746,000	$ 2,339,000
Market value of shares repurchased under equity compensation plans	$ 2,118,000	$ 736,000	$ 5,108,000

Stock Options and Other Equit_3

Stock Options and Other Equity-Based Incentive Instruments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021USD ($)shares	Dec. 31, 2020shares	Dec. 31, 2019shares	Apr. 30, 2019shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding options under the plan (in shares)	78,825	128,500	160,500
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)	99,763	81,615
Weighted-average remaining contractual term	1 year 3 months 18 days
Pre-tax compensation costs | $	$ 1,599,463
Number of units released (in shares)	19,272
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)	103,517	99,809
Weighted-average remaining contractual term	1 year 6 months
Pre-tax compensation costs | $	$ 2,920,422
Number of units released (in shares)	45,492
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)	149,645
2009 Plan
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding options under the plan (in shares)	78,825
2009 Plan | Restricted Stock Units (RSUs)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of units outstanding expected to vest (in shares)	6,315
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)	97,202
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)	1,004,737

Stock Options and Other Equit_4

Stock Options and Other Equity-Based Incentive Instruments - Stock Option Activity (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Number of Shares
Options outstanding, beginning balance (in shares)	128,500	160,500
Options granted (in shares)	0	0
Options exercised (in shares)	(49,675)	(32,000)
Options forfeited (in shares)	0	0
Options outstanding, ending balance (in shares)	78,825	128,500
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)	17.72	17.60
Options granted, weighted average exercise price (in USD per share)	0	0
Options exercised, weighted average exercise price (in USD per share)	15.25	17.10
Options forfeited, weighted average exercise price (in USD per share)	0	0
Options outstanding, weighted average exercise price, ending balance (in USD per share)	19.28	17.72
Minimum
Option Price per Share
Options outstanding, option price per share, beginning balance (in USD per share)	14.54	12.63
Options exercised, option price per share (in USD per share)	14.54	14.54
Options outstanding, option price per share, ending balance (in USD per share)	15.34	14.54
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)	16.59	19.46
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, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options (in shares)	78,825	128,500	160,500
Weighted average exercise price (in USD per share)	$ 19.28	$ 17.72	$ 17.60
Intrinsic value (in thousands)	$ 1,867
Weighted average remaining contractual term (yrs.)	1 year 4 months 24 days
Currently Exercisable
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options (in shares)	78,825
Weighted average exercise price (in USD per share)	$ 19.28
Intrinsic value (in thousands)	$ 1,867
Weighted average remaining contractual term (yrs.)	1 year 4 months 24 days
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 (in thousands)	$ 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, 2021	Dec. 31, 2020	Dec. 31, 2019
Information about Options
Intrinsic value of options exercised	$ 1,476	$ 403	$ 4,169
Fair value of options that vested	0	0	0
Total compensation costs for options recognized in expense	0	0	0
Excess tax benefit recognized in income	0	0	0
ASU 2016-09
Information about Options
Excess tax benefit recognized in income	$ 0	$ 0	$ 1,233

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, 2021$ / sharesshares
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)	99,809
RSUs granted (in shares)	47,029
Additional market plus service condition RSUs vested (in shares)	0
RSUs added through dividend credits (in shares)	2,277
RSUs released through vesting (in shares)	(45,492)
RSUs forfeited/expired (in shares)	(106)
Outstanding, ending balance (in shares)	103,517
RSUs granted, weighted average fair value on date of grant (in USD per share) | $ / shares	$ 45.48
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)	81,615
RSUs granted (in shares)	31,479
Additional market plus service condition RSUs vested (in shares)	6,067
RSUs added through dividend credits (in shares)	0
RSUs released through vesting (in shares)	(19,272)
RSUs forfeited/expired (in shares)	(126)
Outstanding, ending balance (in shares)	99,763
RSUs granted, weighted average fair value on date of grant (in USD per share) | $ / shares	$ 39.15

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, 2021	Dec. 31, 2020	Dec. 31, 2019
Service Condition Vesting RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation costs for RSUs recognized in income	$ 1,728,000	$ 1,390,000	$ 1,161,000
Excess tax benefit recognized in income Service condition vesting RSUs	626,000	372,000	141,000
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	911,000	646,000	493,000
Excess tax benefit recognized in income Service condition vesting RSUs	$ 226,000	$ 194,000	$ 146,000

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, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									$ 43,948	$ 37,981	$ 40,417
Commissions on sale of non-deposit investment products									3,668	2,989	2,877
Increase in cash value of life insurance									2,775	2,949	3,029
Gain on sale of loans									9,580	9,122	3,282
Lease brokerage income									746	668	878
Sale of customer checks									459	414	529
Gain on sale of investment securities									0	7	110
Gain (loss) on marketable equity securities									(86)	64	86
Other									2,574	1,000	2,312
Total other noninterest income									19,716	17,213	13,103
Total noninterest income	$ 16,502	$ 15,095	$ 15,957	$ 16,110	$ 16,580	$ 15,137	$ 11,657	$ 11,820	63,664	55,194	53,520
ATM and interchange fees
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									25,356	21,660	20,639
Service charges on deposit accounts
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									14,013	13,944	16,657
Other service fees
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									3,570	3,156	3,015
Mortgage banking service fees
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									1,881	1,855	1,917
Change in value of mortgage loan servicing rights
Schedule Of Other Noninterest Income And Expense [Line Items]
Total service charges and fees									$ (872)	$ (2,634)	$ (1,811)

Non-interest Income and Expen_4

Non-interest Income and Expense - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Mortgage loan servicing fees, net of change in fair value of mortgage loan servicing rights	$ 1,009	$ 779	$ 106

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, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Base salaries, net of deferred loan origination costs									$ 69,844	$ 70,164	$ 70,218
Incentive compensation									14,957	10,022	13,106
Benefits and other compensation costs									21,550	31,935	22,741
Total salaries and benefits expense									106,351	112,121	106,065
Occupancy									14,910	14,528	14,893
Data processing and software									13,985	13,504	13,517
Equipment									5,358	5,704	7,022
ATM and POS network charges									6,040	5,433	5,447
Merger and acquisition expense									1,523	0	0
Advertising									2,899	2,827	5,633
Professional fees									3,657	3,222	3,754
Intangible amortization									5,464	5,724	5,723
Telecommunications									2,253	2,601	3,190
Regulatory assessments and insurance									2,581	1,594	1,188
Courier service									1,214	1,414	1,308
Operational losses									964	1,168	986
Postage									710	1,068	1,258
Gain on sale or acquisition of foreclosed assets									(233)	(235)	(246)
(Gain) loss on disposal of fixed assets									(439)	67	82
Other miscellaneous expense									11,038	12,018	15,637
Total other noninterest expense									71,924	70,637	79,392
Total noninterest expense	$ 46,679	$ 45,807	$ 44,171	$ 41,618	$ 45,745	$ 46,714	$ 45,550	$ 44,749	$ 178,275	$ 182,758	$ 185,457

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, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current tax expense
Federal									$ 28,763	$ 22,104	$ 20,403
State									18,221	14,586	12,655
Current tax expense, Total									46,984	36,690	33,058
Deferred tax expense
Federal									(872)	(9,500)	695
State									(64)	(4,654)	997
Deferred tax benefit, Total									(936)	(14,154)	1,692
Total tax expense	$ 10,404	$ 11,534	$ 10,767	$ 13,343	$ 8,750	$ 6,622	$ 1,092	$ 6,072	$ 46,048	$ 22,536	$ 34,750

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Taxes (Textual) [Abstract]
Carrying value of low income housing tax credit funds	$ 41,295,000	$ 26,899,000
Low income housing tax credit fund commitments	21,054,000
Proceeds from income tax refunds	805,000
Tax credits	513,000	$ 513,000
Federal
Income Taxes (Textual) [Abstract]
Net operating loss carryforwards	0
Tax credits	63,000
California
Income Taxes (Textual) [Abstract]
Net operating loss carryforwards	13,367,000
Tax credits	$ 648,000

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, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Tax credits and other tax benefits – decrease in tax expense	$ (4,224)	$ (4,200)	$ (2,546)
Amortization – increase in tax expense	$ 3,604	$ 3,581	$ 2,705

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Effective Tax Rate and Statutory Federal Income Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%
State income taxes, net of federal tax benefit	7.90%	7.70%	7.90%
Tax-exempt interest on municipal obligations	(0.50%)	(0.90%)	(0.70%)
Tax-exempt life insurance related income	(0.50%)	(0.80%)	(0.60%)
Low income housing tax credits	(2.60%)	(4.80%)	(2.30%)
Low income housing tax credit amortization	2.20%	4.10%	2.10%
Equity compensation	(0.10%)	0.40%	(0.40%)
Non-deductible merger expenses	0.10%	0.00%	0.00%
Other	0.60%	(0.90%)	0.40%
Effective Tax Rate	28.10%	25.80%	27.40%

Income Taxes - Company's Net De

Income Taxes - Company's Net Deferred Tax Asset Recorded in Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Allowance for losses and reserve for unfunded commitments	$ 26,361	$ 28,159
Deferred compensation	1,758	1,786
Accrued pension liability	0	383
Other accrued expenses	1,994	1,537
Additional unfunded status of the supplemental retirement plans	13,693	13,275
Operating lease liability	7,769	8,270
State taxes	3,251	2,870
Share based compensation	952	837
Nonaccrual interest	937	725
Acquisition cost basis	506	2,372
Unrealized loss on securities	116	0
Tax credits	513	513
Tax credit related to operating losses	1,131	1,131
Other	813	327
Total deferred tax assets	59,794	62,185
Deferred tax liabilities:
Securities income	(762)	(762)
Depreciation	(6,198)	(7,231)
Right of use asset	(7,588)	(8,232)
Funded pension liability	(709)	0
Securities accretion	(846)	(702)
Mortgage servicing rights valuation	(1,726)	(1,490)
Unrealized gain on securities	0	(5,671)
Core deposit intangible	(3,248)	(4,812)
Junior subordinated debt	(1,422)	(1,553)
Prepaid expenses and other	(488)	(532)
Total deferred tax liability	(22,987)	(30,985)
Net deferred tax asset	$ 36,807	$ 31,200

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, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 28,222	$ 27,422	$ 28,362	$ 33,649	$ 23,657	$ 17,606	$ 7,430	$ 16,121	$ 117,655	$ 64,814	$ 92,072
Average number of common shares outstanding (in shares)									29,721	29,917	30,478
Effect of dilutive stock options and restricted stock (in shares)									161	111	167
Average number of common shares outstanding used to calculate diluted earnings per share (in shares)									29,882	30,028	30,645
Options excluded from diluted earnings per share because the effect of these options was antidilutive (in shares)									0	0	0

Comprehensive Income - Componen

Comprehensive Income - Components of Other Comprehensive Income (Loss) and Related Tax Effects (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications, before tax	$ 0	$ (7)	$ (110)
Other comprehensive income (loss)	(11,299)	17,502	12,657
Net unrealized gain (loss) on available for sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
OCI, before reclassifications, before tax	(19,575)	15,803	24,471
Reclassifications, before tax	0	(7)	(110)
OCI, after reclassifications, before tax	(19,575)	15,796	24,361
Tax effect	5,787	(4,670)	(7,202)
Other comprehensive income (loss)	(13,788)	11,126	17,159
Unfunded status of the supplemental retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
OCI, before reclassifications, before tax	3,497	645	(6,745)
Reclassifications, before tax	196	9,254	354
OCI, after reclassifications, before tax	3,693	9,899	(6,391)
Tax effect	(1,091)	(2,927)	1,889
Other comprehensive income (loss)	2,602	6,972	(4,502)
Amortization of prior service cost
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications, before tax	(58)	(55)	(54)
Amortization of actuarial losses
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassifications, before tax	254	9,309	408
Joint beneficiary agreement liability, net of tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
OCI, before reclassifications, before tax	(113)	(596)	0
OCI, before reclassifications, net of tax	(113)	(596)	0
Tax effect	$ 0	$ 0	$ 0

Comprehensive Income - Compon_2

Comprehensive Income - Components of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net of tax	$ 981	$ 12,280
Net unrealized gain (loss) on available for sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI before tax, attributable to parent	(392)	19,183
Tax effect	116	(5,671)
Accumulated other comprehensive income, net of tax	(276)	13,512
Unfunded status of the supplemental retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI before tax, attributable to parent	2,399	(1,294)
Tax effect	(709)	382
Accumulated other comprehensive income, net of tax	1,690	(912)
Joint beneficiary agreement liability, net of tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI before tax, attributable to parent	$ (433)	$ (320)

Retirement Plans - Additional I

Retirement Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Employee service period under ESOP		1 year
Deferred compensation obligations		$ 5,945	$ 6,043
Cash values of the insurance policies purchased to fund deferred compensation obligations		117,857	118,870	$ 117,823
Unfunded status of the supplemental retirement plans		(2,399)	1,294
AOCI, defined benefit plan, after tax		$ (1,690)	912
Scenario, Forecast
Defined Benefit Plan Disclosure [Line Items]
Amortization of actuarial losses	$ 26
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		50.00%
Discretionary matching contribution maximum percentage of eligible compensation		4.00%
Supplemental Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
Cash values of the insurance policies purchased to fund deferred compensation obligations		$ 117,857	118,870
Unfunded status of the supplemental retirement plans		2,399	(1,294)
AOCI, defined benefit plan, after tax		1,690	(912)
Deferred tax asset		$ (709)	$ 382

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, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
401(k) Plan benefits expense	$ 1,211	$ 1,139	$ 1,119
401(k) Plan contributions made by the Company	$ 1,121	$ 202	$ 1,003

Retirement Plans - Summary of E

Retirement Plans - Summary of ESOP Activities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
ESOP benefits expense	$ 1,888	$ 2,400	$ 2,500
ESOP contributions made by the Company	$ 878	$ 1,951	$ 1,875

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, 2021	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Deferred compensation earnings credits included in non-interest expense	$ 176	$ 212	$ 363

Retirement Plans - Defined Bene

Retirement Plans - Defined Benefit Pension Plans (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Retirement Benefits [Abstract]
Transition obligation	$ 0	$ 0
Prior service cost	(28)	(86)
Net actuarial loss	(2,371)	1,380
Amount included in accumulated other comprehensive income (loss)	(2,399)	1,294
Deferred tax benefit	709	(382)
Amount included in accumulated other comprehensive income (loss), net of tax	$ (1,690)	$ 912

Retirement Plans - Information

Retirement Plans - Information Pertaining to Activity in Supplemental Retirement Plans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in benefit obligation:
Benefit obligation at beginning of year	$ (38,000)	$ (36,737)
Service cost	(913)	(2,225)	$ (879)
Interest cost	(898)	(1,014)	(1,131)
Actuarial (loss)/gain	3,580	640
Plan amendments	0	0
Benefits paid	972	1,336
Benefit obligation at end of year	(35,259)	(38,000)	$ (36,737)
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	(35,259)	(38,000)
Unrecognized net obligation existing at January 1, 1986		0
Unrecognized net actuarial (loss)/gain	(2,453)	1,380
Unrecognized prior service cost	(28)	(86)
Accumulated other comprehensive income (loss)	2,481	(1,294)
Accrued benefit cost	(35,259)	(38,000)
Accumulated benefit obligation	$ (34,015)	$ (36,298)

Retirement Plans - Net Periodic

Retirement Plans - Net Periodic Benefit Cost Recognized for Supplemental Retirement Plans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net pension cost included the following components:
Service cost-benefits earned during the period	$ 913	$ 2,225	$ 879
Interest cost on projected benefit obligation	898	1,014	1,131
Amortization of net obligation at transition	0	1	2
Amortization of prior service cost	(58)	(55)	(54)
Recognized net actuarial loss	254	9,309	408
Net periodic pension cost	$ 2,007	$ 12,494	$ 2,366

Retirement Plans - Assumptions

Retirement Plans - Assumptions Used in Accounting for Plans (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Discount rate used to calculate benefit obligation	2.74%	2.40%	2.82%
Discount rate used to calculate net periodic pension cost	2.40%	2.82%	3.96%
Executive Compensation
Defined Benefit Plan Disclosure [Line Items]
Average annual increase in compensation	3.25%	3.25%	3.25%
Director Compensation
Defined Benefit Plan Disclosure [Line Items]
Average annual increase in compensation	0.00%	0.00%	0.00%

Retirement Plans - Expected Ben

Retirement Plans - Expected Benefit Payments to Participants and Estimated Contributions to be Made by Company (Detail) $ in Thousands	Dec. 31, 2021USD ($)
Retirement Benefits [Abstract]
Expected benefit payments to participants, 2022	$ 1,118
Expected benefit payments to participants, 2023	2,208
Expected benefit payments to participants, 2024	2,214
Expected benefit payments to participants, 2025	2,203
Expected benefit payments to participants, 2026	2,160
Expected benefit payments to participants, 2027-2031	10,294
Estimated company contributions, 2022	1,118
Estimated company contributions, 2023	2,208
Estimated company contributions, 2024	2,214
Estimated company contributions, 2025	2,203
Estimated company contributions, 2026	2,160
Estimated company contributions, 2027-2031	$ 10,294

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, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Beginning balance	$ 6,833	$ 10,121
Advances/new loans	2,000	665
Removed/payments	(2,517)	(3,953)
Ending balance	$ 6,316	$ 6,833

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Related Party Transactions [Abstract]
Bank deposits of directors, officers and other related parties	$ 35,310	$ 40,843

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, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 2,220,216	$ 1,428,649
Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,938	3,025
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	1,257,389	812,374
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	192,244	129,095
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	6,756	2,544
Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	751,549	470,251
Loans Held For Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	3,466	6,268
Mortgage servicing rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	5,874	5,092
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,938	3,025
Level 1 | Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,938	3,025
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 | 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	2,211,404	1,420,532
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	1,257,389	812,374
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	192,244	129,095
Level 2 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	6,756	2,544
Level 2 | Asset backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	751,549	470,251
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	3,466	6,268
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	5,874	5,092
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 | 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	$ 5,874	$ 5,092

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
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, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 5,092
Ending Balance		$ 5,092
Mortgage servicing rights
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	5,092	6,200	$ 7,098
Transfers into (out of) Level 3	0	0	0
Change Included in Earnings	(872)	(2,634)	(1,811)
Issuances	1,654	1,526	913
Ending Balance	$ 5,874	$ 5,092	$ 6,200

Fair Value Measurement - Quanti

Fair Value Measurement - Quantitative Information about Recurring Fair Value Measurements (Detail) - Mortgage servicing rights $ in Thousands	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 5,874	$ 5,092	$ 6,200	$ 7,098
Minimum | Constant prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Constant prepayment rate	1.87	2.40
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	2.64	3.33
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	2.08	2.94
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, 2021	Dec. 31, 2020
Impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 3,683	$ 1,424
Fair Value Nonrecurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value		2,403
Total Gains (Losses)		(1,334)
Fair Value Nonrecurring Basis | Impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	3,683	1,424
Total Gains (Losses)	(1,105)	(1,489)
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		979
Total Gains (Losses)		155
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 | Impaired loans
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 | 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 | Impaired loans
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 | 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		2,403
Fair Value Nonrecurring Basis | Level 3 | Impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 3,683	1,424
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		$ 979

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, 2021	Dec. 31, 2020
Impaired loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 3,683	$ 1,424
Real estate owned | Residential Real Estate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value		$ 824

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, 2021	Dec. 31, 2020
Financial assets:
Cash and due from banks	$ 57,032,000	$ 77,253,000
Cash at Federal Reserve and other banks	711,389,000	592,298,000
Securities held to maturity	199,759,000	284,563,000
Restricted equity securities	0	0
Financial liabilities:
Other borrowings	50,087,000	26,914,000
Junior subordinated debt	58,079,000	57,635,000
Level 3 | Overdraft privilege commitments (1)
Off-balance sheet:
Contract amount, Off-balance sheet	125,670,000	110,813,000
Level 3 | Standby letters of credit (1)
Off-balance sheet:
Contract amount, Off-balance sheet	21,871,000	15,056,000
Level 3 | Commitments (1)
Off-balance sheet:
Contract amount, Off-balance sheet	1,586,068,000	1,426,827,000
Fair Value | Level 1
Financial assets:
Cash and due from banks	57,032,000	77,253,000
Cash at Federal Reserve and other banks	711,389,000	592,298,000
Fair Value | Level 2
Financial assets:
Securities held to maturity	208,140,000	298,726,000
Financial liabilities:
Deposits	7,366,422,000	6,507,235,000
Other borrowings	50,087,000	26,914,000
Fair Value | Level 3
Financial assets:
Loans, net	4,880,044,000	4,753,027,000
Financial liabilities:
Junior subordinated debt	57,173,000	56,632,000
Fair Value | Level 3 | Overdraft privilege commitments (1)
Off-balance sheet:
Fair value, Off-balance sheet	1,257,000	1,108,000
Fair Value | Level 3 | Standby letters of credit (1)
Off-balance sheet:
Fair value, Off-balance sheet	219,000	151,000
Fair Value | Level 3 | Commitments (1)
Off-balance sheet:
Fair value, Off-balance sheet	15,861,000	14,268,000
Carrying Amount | Level 1
Financial assets:
Cash and due from banks	57,032,000	77,253,000
Cash at Federal Reserve and other banks	711,389,000	592,298,000
Carrying Amount | Level 2
Financial assets:
Securities held to maturity	199,759,000	284,563,000
Restricted equity securities	17,250,000	17,250,000
Financial liabilities:
Deposits	7,367,159,000	6,505,934,000
Other borrowings	50,087,000	26,914,000
Carrying Amount | Level 3
Financial assets:
Loans, net	4,831,248,000	4,671,280,000
Financial liabilities:
Junior subordinated debt	$ 58,079,000	$ 57,635,000

TriCo Bancshares Condensed Fi_3

TriCo Bancshares Condensed Financial Statements (Parent Only) - Condensed Balance Sheets (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 768,421	$ 669,551
Other assets	109,025	84,172
Total assets	8,614,787	7,639,529
Liabilities and shareholders’ equity
Other liabilities	112,070	94,597
Junior subordinated debt	58,079	57,635
Total liabilities	7,614,603	6,714,415
Shareholders’ equity:
Preferred stock, value issued	0	0
Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 29,730,424 and 29,727,214 at December 31, 2021 and 2020, respectively	532,244	530,835
Retained earnings	466,959	381,999
Accumulated other comprehensive loss, net	981	12,280
Total shareholders’ equity	1,000,184	925,114	$ 906,570	$ 827,373
Total liabilities and shareholders’ equity	8,614,787	7,639,529
Parent
Assets
Cash and cash equivalents	4,950	13,297
Investment in Tri Counties Bank	1,047,577	967,949
Other assets	6,073	1,818
Total assets	1,058,600	983,064
Liabilities and shareholders’ equity
Other liabilities	337	315
Junior subordinated debt	58,079	57,635
Total liabilities	58,416	57,950
Shareholders’ equity:
Preferred stock, value issued	0	0
Common stock, no par value: 50,000,000 shares authorized; issued and outstanding: 29,730,424 and 29,727,214 at December 31, 2021 and 2020, respectively	532,244	530,835
Retained earnings	466,959	381,999
Accumulated other comprehensive loss, net	981	12,280
Total shareholders’ equity	1,000,184	925,114
Total liabilities and shareholders’ equity	$ 1,058,600	$ 983,064

TriCo Bancshares Condensed Fi_4

TriCo Bancshares Condensed Financial Statements (Parent Only) - Condensed Balance Sheets, Nonprinting (Detail) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
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)	29,730,424	29,727,214
Common stock, shares outstanding (in shares)	29,730,424	29,727,214

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, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Net interest expense	$ (1,241)	$ (1,395)	$ (1,396)	$ (1,476)	$ (1,659)	$ (1,984)	$ (2,489)	$ (3,325)	$ (5,508)	$ (9,457)	$ (15,375)
Income before income taxes	38,626	38,956	39,129	46,992	32,407	24,228	8,522	22,193	163,703	87,350	126,822
Equity in net income of Tri Counties Bank:
Income tax benefit	(10,404)	(11,534)	(10,767)	(13,343)	(8,750)	(6,622)	(1,092)	(6,072)	(46,048)	(22,536)	(34,750)
Net income	$ 28,222	$ 27,422	$ 28,362	$ 33,649	$ 23,657	$ 17,606	$ 7,430	$ 16,121	117,655	64,814	92,072
Parent
Condensed Financial Statements, Captions [Line Items]
Net interest expense									(2,128)	(2,555)	(3,272)
Administration expense									(985)	(932)	(877)
Income before income taxes									(3,113)	(3,487)	(4,149)
Equity in net income of Tri Counties Bank:
Distributed									31,571	63,419	32,669
Undistributed									88,289	3,851	62,326
Income tax benefit									908	1,031	1,226
Net income									$ 117,655	$ 64,814	$ 92,072

TriCo Bancshares Condensed Fi_6

TriCo Bancshares Condensed Financial Statements (Parent Only) - Condensed Statements of Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Net income	$ 28,222	$ 27,422	$ 28,362	$ 33,649	$ 23,657	$ 17,606	$ 7,430	$ 16,121	$ 117,655	$ 64,814	$ 92,072
Other comprehensive income (loss), net of tax:
Increase (decrease) in unrealized gains on available for sale securities arising during the period									(13,788)	11,126	17,159
Change in minimum pension liability									2,602	6,972	(4,502)
Change in joint beneficiary agreement liability									(113)	(596)	0
Other comprehensive income (loss)									(11,299)	17,502	12,657
Comprehensive income									106,356	82,316	104,729
Parent
Condensed Financial Statements, Captions [Line Items]
Net income									117,655	64,814	92,072
Other comprehensive income (loss), net of tax:
Increase (decrease) in unrealized gains on available for sale securities arising during the period									(13,788)	11,126	17,159
Change in minimum pension liability									2,602	6,972	(4,502)
Change in joint beneficiary agreement liability									(113)	(596)	0
Other comprehensive income (loss)									(11,299)	17,502	12,657
Comprehensive income									$ 106,356	$ 82,316	$ 104,729

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, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net income	$ 117,655	$ 64,814	$ 92,072
Adjustments to reconcile net income to net cash provided by operating activities:
Equity compensation vesting expense	2,638	2,036	1,654
Net cash from operating activities	132,207	114,802	102,806
Financing activities:
Issuance of common stock through option exercise	144	198	9
Repurchase of common stock, net	(4,344)	(26,720)	(2,196)
Cash dividends paid — common	(29,724)	(26,303)	(24,999)
Net cash from financing activities	850,474	1,094,575	(24,043)
Net change in cash and cash equivalents	98,870	393,044	48,974
Cash and cash equivalents at beginning of year	669,551	276,507	227,533
Cash and cash equivalents at end of year	768,421	669,551	276,507
Parent
Operating activities:
Net income	117,655	64,814	92,072
Adjustments to reconcile net income to net cash provided by operating activities:
Undistributed equity in earnings of Tri Counties Bank	(88,289)	(3,851)	(62,326)
Equity compensation vesting expense	2,638	2,036	1,654
Net change in other assets and liabilities	(6,427)	(1,885)	(1,580)
Net cash from operating activities	25,577	61,114	29,820
Financing activities:
Issuance of common stock through option exercise	144	198	9
Repurchase of common stock, net	(4,344)	(26,720)	(2,196)
Cash dividends paid — common	(29,724)	(26,303)	(24,999)
Net cash from financing activities	(33,924)	(52,825)	(27,186)
Net change in cash and cash equivalents	(8,347)	8,289	2,634
Cash and cash equivalents at beginning of year	13,297	5,008	2,374
Cash and cash equivalents at end of year	$ 4,950	$ 13,297	$ 5,008

Regulatory Matters - Actual and

Regulatory Matters - Actual and Required Capital Ratios of Bank (Detail) $ in Thousands	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Parent
Schedule of Capitalization [Line Items]
Total Capital (to Risk Weighted Assets), Actual, Amount	$ 893,294	$ 793,433
Tier 1 Capital (to Risk Weighted Assets), Actual, Amount	820,654	727,879
Common Equity Tier 1 Capital (to Risk Weighted Assets), Actual, Amount	764,319	671,975
Tier 1 Capital (to Average Assets), Actual, Amount	$ 820,654	$ 727,879
Total Capital (to Risk Weighted Assets), Actual, Ratio	0.1542	0.1522
Tier 1 Capital (to Risk Weighted Assets), Actual, Ratio	0.1417	0.1396
Common Equity Tier 1 Capital (to Risk Weighted Assets), Actual, Ratio	0.1319	0.1289
Tier 1 Capital (to Average Assets), Actual, Ratio	0.0988	0.0993
Parent | Required for Capital Adequacy Purposes
Schedule of Capitalization [Line Items]
Total Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	$ 608,258	$ 547,352
Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	492,399	443,094
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	405,505	364,901
Tier 1 Capital (to Average Assets), Minimum Capital Requirement, Amount	$ 332,205	$ 293,138
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	7.00%	7.00%
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	$ 884,255	$ 780,320
Tier 1 Capital (to Risk Weighted Assets), Actual, Amount	811,713	714,811
Common Equity Tier 1 Capital (to Risk Weighted Assets), Actual, Amount	811,713	714,811
Tier 1 Capital (to Average Assets), Actual, Amount	$ 811,713	$ 714,811
Total Capital (to Risk Weighted Assets), Actual, Ratio	0.1528	0.1497
Tier 1 Capital (to Risk Weighted Assets), Actual, Ratio	0.1403	0.1372
Common Equity Tier 1 Capital (to Risk Weighted Assets), Actual, Ratio	0.1403	0.1372
Tier 1 Capital (to Average Assets), Actual, Ratio	0.0977	0.0976
Total Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 578,676	$ 521,101
Tier 1 Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	462,941	416,881
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	376,140	338,716
Tier 1 Capital (to Average Assets), Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 415,245	$ 366,186
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	$ 607,610	$ 547,156
Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	491,875	442,936
Common Equity Tier 1 Capital (to Risk Weighted Assets), Minimum Capital Requirement, Amount	405,073	364,771
Tier 1 Capital (to Average Assets), Minimum Capital Requirement, Amount	$ 332,196	$ 292,949
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	7.00%	7.00%
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, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loans:
Discount accretion	$ 1,780	$ 2,034	$ 2,566	$ 1,712	$ 1,960	$ 1,876	$ 2,587	$ 1,748
All other loan interest income	59,024	58,691	57,738	58,724	59,055	56,163	55,822	54,510
Total loan interest income	60,804	60,725	60,304	60,436	61,015	58,039	58,409	56,258	$ 242,269	$ 233,721	$ 223,750
Debt securities, dividends and interest bearing cash at banks	10,220	8,903	8,175	7,480	7,066	7,399	8,739	10,259
Total interest and dividend income	71,024	69,628	68,479	67,916	68,081	65,438	67,148	66,517	277,047	267,184	272,444
Interest expense	1,241	1,395	1,396	1,476	1,659	1,984	2,489	3,325	5,508	9,457	15,375
Net interest income	69,783	68,233	67,083	66,440	66,422	63,454	64,659	63,192	271,539	257,727	257,069
Provision for (benefit from) credit losses	980	(1,435)	(260)	(6,060)	4,850	7,649	22,244	8,070	(6,775)	42,813	(1,690)
Net interest income after provision for (benefit from) credit losses	68,803	69,668	67,343	72,500	61,572	55,805	42,415	55,122	278,314	214,914	258,759
Noninterest income	16,502	15,095	15,957	16,110	16,580	15,137	11,657	11,820	63,664	55,194	53,520
Total noninterest expense	46,679	45,807	44,171	41,618	45,745	46,714	45,550	44,749	178,275	182,758	185,457
Income before income taxes	38,626	38,956	39,129	46,992	32,407	24,228	8,522	22,193	163,703	87,350	126,822
Income tax expense	10,404	11,534	10,767	13,343	8,750	6,622	1,092	6,072	46,048	22,536	34,750
Net income	$ 28,222	$ 27,422	$ 28,362	$ 33,649	$ 23,657	$ 17,606	$ 7,430	$ 16,121	$ 117,655	$ 64,814	$ 92,072
Per common share:
Net income (diluted) (in USD per share)	$ 0.94	$ 0.92	$ 0.95	$ 1.13	$ 0.79	$ 0.59	$ 0.25	$ 0.53	$ 3.94	$ 2.16	$ 3
Dividends paid (in USD per share)	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.22	$ 0.22	$ 0.22	$ 0.22	$ 1	$ 0.88	$ 0.82