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Non-interest Income and Expense - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Other Income and Expenses [Abstract] |  |  |
Mortgage loan servicing fees, net of change in fair value of mortgage loan servicing rights | $ 1.3 | $ 2.2 | $ 1.0

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- Definition Change in fair value of mortgage loan servicing rights. + References No definition available. + Details
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Namespace Prefix: | tcbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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