XML 140 R126.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Retirement Plans - Schedule of Deferred Compensation Earnings Credits Included in Noninterest Expense (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Retirement Benefits [Abstract] |  |  |
Deferred compensation earnings credits included in non-interest expense | $ 210 | $ 187 | $ 176

X
- Definition Deferred compensation arrangements non interest expense. + References No definition available. + Details
Name: | tcbk_DeferredCompensationArrangementsNonInterestExpense
Namespace Prefix: | tcbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration