v3.26.1
Pay vs Performance Disclosure
 12 Months Ended
Dec. 31, 2025
USD ($)
percent
Dec. 31, 2024
USD ($)
percent
Dec. 31, 2023
USD ($)
percent
Dec. 31, 2022
USD ($)
percent
Dec. 31, 2021
USD ($)
percent
Pay vs Performance Disclosure          
Pay vs Performance Disclosure, Table
YearSummary Comp for PEO ($) (1)Comp Actually Paid to PEO ($) (6)Average Summary Comp for Non-PEO NEOs ($) (2)Average Comp Actually Paid to Non-PEO NEOs ($) (6)Value of Initial Fixed $100 Investment Based on (3):Net Income ($)Return on Average Tangible Common Equity (5)
TSR ($)Peer Group TSR ($) (4)
20252,981,248 3,793,851 1,065,238 1,403,669 154.74 131.59 121,558,000 12.58 %
20242,896,621 3,146,985 1,209,547 1,285,047 123.34 109.09 114,868,000 13.28 %
20233,097,841 2,361,529 1,302,528 941,214 117.37 80.70 117,390,000 15.52 %
20222,511,604 6,861,267 1,128,277 1,910,480 134.99 83.86 125,419,000 16.85 %
20212,833,364 3,581,851 1,361,521 1,519,885 111.05 110.39 117,655,000 16.50 %
        
Company Selected Measure Name Average Tangible Common Equity        
Named Executive Officers, Footnote
(1)    Richard Smith was the Principle Executive Officer (PEO) for each of the years presented.
(2)    Non-PEO Named Executive Officers (NEOs) consisted of Peter Wiese, John Fleshood, Craig Carney and Dan Bailey for each of the years presented. For 2025, also includes Greg Gehlmann.
        
Peer Group Issuers, Footnote The peer group used by the Company consists of the index used in the Company’s performance graph as required by item 201(e) of Regulation S-K and reported in Part II, item 5 of its annual report on Form 10-K for the fiscal year ended December 31, 2025, named the S&P Western Bank Index.        
PEO Total Compensation Amount $ 2,981,248 $ 2,896,621 $ 3,097,841 $ 2,511,604 $ 2,833,364
PEO Actually Paid Compensation Amount $ 3,793,851 3,146,985 2,361,529 6,861,267 3,581,851
Adjustment To PEO Compensation, Footnote
Adjustments to Determine Compensation ‘Actually Paid’ to PEO 20252024202320222021
Pension Plans
Deduction for aggregate change in the actuarial present values reported under the “Change in Pension Value and Nonqualified Deferred Compensation Earnings” column of the Summary Compensation Table(69,527)(13,537)(138,132)(14,658)(14,856)
Increase for “Service Cost” for pension plans 66,950 74,635 68,694 550,415 559,097 
Increase for “Prior Service Cost” or “Amendments” for pension plans— — — 2,031,799 (6,736)
Equity Awards
Deduction for amounts reported under the “Stock Awards” column in the Summary Compensation Table(758,458)(690,574)(862,084)(867,813)(731,456)
Deduction for amounts reported under the “Option Awards” column in the Summary Compensation Table — — — — — 
Fair value at year-end of awards granted during year that remain outstanding and unvested as of year-end 1,031,883 974,763 1,027,714 1,297,649 620,036 
Vest date fair value of awards granted during year that vested during covered year — — — — — 
Increase/deduction for change in fair value from prior year-end to covered year-end of awards granted prior to covered year that were outstanding and unvested as of year-end(412,640)27,018 (242,369)1,160,444 155,641 
Increase/deduction for change in fair value from prior year-end to vesting date of awards granted prior to covered year that vested during covered year954,395 (121,941)(590,135)191,827 166,761 
Deduction of fair value of awards granted prior to covered year that were forfeited during covered year— — — — — 
Increase based upon incremental fair value of awards modified during year— — — — — 
Increase based on dividends or other earnings paid during covered year— — — — — 
Total Adjustments812,603 250,364 (736,312)4,349,663 748,487 
        
Non-PEO NEO Average Total Compensation Amount $ 1,065,238 1,209,547 1,302,528 1,128,277 1,361,521
Non-PEO NEO Average Compensation Actually Paid Amount $ 1,403,669 1,285,047 941,214 1,910,480 1,519,885
Adjustment to Non-PEO NEO Compensation Footnote Compensation ‘actually paid’ is calculated in accordance with Item 402(v) of Regulation S-K. The tables below sets forth each adjustment made during each year presented in the table to calculate the compensation ‘actually paid’ to our PEO and NEOs during each years presented
Adjustments to Determine Average Compensation ‘Actually Paid’ to Non-PEO NEOs 20252024202320222021
Pension Plans
Deduction for aggregate change in the actuarial present values reported under the “Change in Pension Value and Nonqualified Deferred Compensation Earnings” column of the Summary Compensation Table(59,625)(12,197)(77,330)(4,410)(4,685)
Increase for “Service Cost” for pension plans 21,057 19,182 17,153 65,896 88,476 
Increase for “Prior Service Cost” or “Amendments” for pension plans— — — 27,300 (2,132)
Equity Awards
Deduction for amounts reported under the “Stock Awards” column in the Summary Compensation Table(226,223)(255,750)(319,067)(318,908)(294,918)
Deduction for amounts reported under the “Option Awards” column in the Summary Compensation Table — — — — — 
Fair value at year-end of awards granted during year that remain outstanding and unvested as of year-end 299,315 361,003 380,355 499,495 249,994 
Vest date fair value of awards granted during year that vested during covered year — — — — — 
Increase/deduction for change in fair value from prior year-end to covered year-end of awards granted prior to covered year that were outstanding and unvested as of year-end46,606 12,282 (141,403)446,676 57,883 
Increase/deduction for change in fair value from prior year-end to vesting date of awards granted prior to covered year that vested during covered year257,300 (49,020)(221,022)66,154 63,746 
Deduction of fair value of awards granted prior to covered year that were forfeited during
covered year		— — — — — 
Increase based upon incremental fair value of awards modified during year— — — — — 
Increase based on dividends or other earnings paid during covered year— — — — — 
Total Adjustments338,430 75,500 (361,314)782,203 158,364 
        
Compensation Actually Paid vs. Total Shareholder Return
3139
        
Compensation Actually Paid vs. Net Income
3142
        
Compensation Actually Paid vs. Company Selected Measure
3146
        
Total Shareholder Return Vs Peer Group
3139
        
Tabular List, Table
Most Important Performance Measures
Net income
Total shareholder return (TSR)
Return on average tangible common equity
Pre-tax pre-provision return on average equity
Efficiency Ratio
Nonperforming Assets to Total Assets
        
Total Shareholder Return Amount $ 154.74 123.34 117.37 134.99 111.05
Peer Group Total Shareholder Return Amount 131.59 109.09 80.70 83.86 110.39
Net Income (Loss) $ 121,558,000 $ 114,868,000 $ 117,390,000 $ 125,419,000 $ 117,655,000
Company Selected Measure Amount | percent 0.1258 0.1328 0.1552 0.1685 0.1650
PEO Name Richard Smith Richard Smith Richard Smith Richard Smith Richard Smith
Additional 402(v) Disclosure Assumes $100 invested in our common shares on December 31, 2020 and reinvestment of all dividends.
We believe the following performance measures represent the most important financial performance measures used by us to link compensation actually paid to our non-CEO NEOs for the fiscal year ended December 31, 2025:
While we utilize several performance measures to align executive compensation with performance, all of those measures are not presented in the Pay for Performance table. Moreover, as we seek to incentivize long-term performance, the changes in compensation values as reported in the reconciling tables above and identified as “compensation that is actually paid” (as defined
by the SEC rules) for any covered year may not specifically align with the company’s performance measures. For descriptions and additional details regarding our most important financial performance and other measures, please see the discussion in our Compensation Discussion and Analysis (CD&A) section beginning on page 30 . 		       
Measure:: 1          
Pay vs Performance Disclosure          
Name Net income        
Measure:: 2          
Pay vs Performance Disclosure          
Name Total shareholder return (TSR)        
Measure:: 3          
Pay vs Performance Disclosure          
Name Return on average tangible common equity        
Non-GAAP Measure Description Our Company-Selected Measure is Return on Average Tangible Common Equity, which is a non-GAAP measure (net income, adjusted for tax-affected amortization of intangibles, as a percent of average tangible common equity (average shareholders’ equity, less average tangible assets)). See our reconciliation at Appendix A.        
Measure:: 4          
Pay vs Performance Disclosure          
Name Pre-tax pre-provision return on average equity        
Measure:: 5          
Pay vs Performance Disclosure          
Name Efficiency Ratio        
Measure:: 6          
Pay vs Performance Disclosure          
Name Nonperforming Assets to Total Assets        
PEO          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ 812,603 $ 250,364 $ (736,312) $ 4,349,663 $ 748,487
PEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (69,527) (13,537) (138,132) (14,658) (14,856)
PEO | Pension Adjustments Service Cost          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 66,950 74,635 68,694 550,415 559,097
PEO | Pension Adjustments Prior Service Cost          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 2,031,799 (6,736)
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 1,031,883 974,763 1,027,714 1,297,649 620,036
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (412,640) 27,018 (242,369) 1,160,444 155,641
PEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 954,395 (121,941) (590,135) 191,827 166,761
PEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
PEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table, Stock Awards [Member]          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (758,458) (690,574) (862,084) (867,813) (731,456)
PEO | Aggregated Grant Date Fair Value of Equity Award Amounts Reported In Summary Compensation Table, Option Awards [Member]          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
PEO | Increase Based Upon Incremental Fair Value Of Awards Modified During Year [Member]          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
Non-PEO NEO          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 338,430 75,500 (361,314) 782,203 158,364
Non-PEO NEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (59,625) (12,197) (77,330) (4,410) (4,685)
Non-PEO NEO | Pension Adjustments Service Cost          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 21,057 19,182 17,153 65,896 88,476
Non-PEO NEO | Pension Adjustments Prior Service Cost          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 27,300 (2,132)
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 299,315 361,003 380,355 499,495 249,994
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 46,606 12,282 (141,403) 446,676 57,883
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 257,300 (49,020) (221,022) 66,154 63,746
Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table, Stock Awards [Member]          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (226,223) (255,750) (319,067) (318,908) (294,918)
Non-PEO NEO | Aggregated Grant Date Fair Value of Equity Award Amounts Reported In Summary Compensation Table, Option Awards [Member]          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0 0 0 0 0
Non-PEO NEO | Increase Based Upon Incremental Fair Value Of Awards Modified During Year [Member]          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ 0 $ 0 $ 0 $ 0 $ 0