XML 48 R36.htm IDEA: XBRL DOCUMENT
v3.25.1

Commitments and Contingencies (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
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:
(in thousands) | March 31, 2025 |  | December 31, 2024
Financial instruments whose amounts represent risk: |  |  |
Commitments to extend credit: |  |  |
Commercial loans | $ | 846,628 |  |  | $ | 788,491 |
Consumer loans | 626,521 |  |  | 627,681 |
Real estate mortgage loans | 428,338 |  |  | 419,172 |
Real estate construction loans | 233,251 |  |  | 272,308 |
Standby letters of credit | 32,512 |  |  | 39,804 |
Deposit account overdraft privilege | 128,101 |  |  | 121,006 |

X
- Definition Summary of the banks commitments and contingent liabilities. + References No definition available. + Details
Name: | tcbk_SummaryOfBanksCommitmentsAndContingentLiabilitiesTableTextBlock
Namespace Prefix: | tcbk_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

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