XML 98 R79.htm IDEA: XBRL DOCUMENT
v3.22.4

Allowance for Credit Losses - Analysis of Past Due and Nonaccrual Loans (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 6,450,447 | $ 4,916,624
Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,359,083 | 3,306,054
Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,240,743 | 1,071,551
Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 569,921 | 259,355
Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 211,560 | 222,281
Agriculture production |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 61,414 | 50,811
Leases |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 7,726 | 6,572
CRE non-owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,149,725 | 1,603,141
CRE owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 984,807 | 706,307
Multifamily | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 944,537 | 823,500
Farmland | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 280,014 | 173,106
SFR 1-4 1st DT liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 790,349 | 666,960
SFR HELOCs and junior liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 393,666 | 337,513
Other | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 56,728 | 67,078
Financial asset originated |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 6,450,447 | 4,916,624
Financial asset originated | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,359,083 | 3,306,054
Financial asset originated | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,240,743 | 1,071,551
Financial asset originated | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 569,921 | 259,355
Financial asset originated | Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 211,560 | 222,281
Financial asset originated | Agriculture production |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 61,414 | 50,811
Financial asset originated | Leases |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 7,726 | 6,572
Financial asset originated | CRE non-owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,149,725 | 1,603,141
Financial asset originated | CRE owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 984,807 | 706,307
Financial asset originated | Multifamily | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 944,537 | 823,500
Financial asset originated | Farmland | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 280,014 | 173,106
Financial asset originated | SFR 1-4 1st DT liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 790,349 | 666,960
Financial asset originated | SFR HELOCs and junior liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 393,666 | 337,513
Financial asset originated | Other | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 56,728 | 67,078
Total Past Due Loans | Financial asset originated |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,947 | 4,332
Total Past Due Loans | Financial asset originated | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 332 | 1,509
Total Past Due Loans | Financial asset originated | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,463 | 2,128
Total Past Due Loans | Financial asset originated | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,773 | 557
Total Past Due Loans | Financial asset originated | Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 379 | 90
Total Past Due Loans | Financial asset originated | Agriculture production |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 48
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 | 0 | 263
Total Past Due Loans | Financial asset originated | CRE owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 173 | 671
Total Past Due Loans | Financial asset originated | Multifamily | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 159 | 0
Total Past Due Loans | Financial asset originated | Farmland | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 575
Total Past Due Loans | Financial asset originated | SFR 1-4 1st DT liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 303 | 375
Total Past Due Loans | Financial asset originated | SFR HELOCs and junior liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,045 | 1,609
Total Past Due Loans | Financial asset originated | Other | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 115 | 144
30-59 days | Financial asset originated |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,681 | 836
30-59 days | Financial asset originated | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 159 | 497
30-59 days | Financial asset originated | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 222 | 145
30-59 days | Financial asset originated | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,300 | 146
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 | 0 | 48
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 | 0 | 226
30-59 days | Financial asset originated | CRE owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 271
30-59 days | Financial asset originated | Multifamily | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 159 | 0
30-59 days | Financial asset originated | Farmland | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
30-59 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 24 | 0
30-59 days | Financial asset originated | SFR HELOCs and junior liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 172 | 36
30-59 days | Financial asset originated | Other | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 26 | 109
60-89 days | Financial asset originated |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 488 | 880
60-89 days | Financial asset originated | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 98 | 164
60-89 days | Financial asset originated | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 200 | 381
60-89 days | Financial asset originated | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 190 | 245
60-89 days | Financial asset originated | Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 90
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 | 0 | 37
60-89 days | Financial asset originated | CRE owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 98 | 127
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 | 0 | 13
60-89 days | Financial asset originated | SFR HELOCs and junior liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 166 | 361
60-89 days | Financial asset originated | Other | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 34 | 7
> 90 days | Financial asset originated |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,778 | 2,616
> 90 days | Financial asset originated | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 75 | 848
> 90 days | Financial asset originated | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,041 | 1,602
> 90 days | Financial asset originated | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 283 | 166
> 90 days | Financial asset originated | Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 379 | 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 | 0
> 90 days | Financial asset originated | CRE owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 75 | 273
> 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 | 0 | 575
> 90 days | Financial asset originated | SFR 1-4 1st DT liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 279 | 362
> 90 days | Financial asset originated | SFR HELOCs and junior liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 707 | 1,212
> 90 days | Financial asset originated | Other | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 55 | 28
Current | Financial asset originated |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 6,445,500 | 4,912,292
Current | Financial asset originated | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,358,751 | 3,304,545
Current | Financial asset originated | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,239,280 | 1,069,423
Current | Financial asset originated | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 567,148 | 258,798
Current | Financial asset originated | Construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 211,181 | 222,191
Current | Financial asset originated | Agriculture production |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 61,414 | 50,763
Current | Financial asset originated | Leases |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 7,726 | 6,572
Current | Financial asset originated | CRE non-owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,149,725 | 1,602,878
Current | Financial asset originated | CRE owner occupied | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 984,634 | 705,636
Current | Financial asset originated | Multifamily | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 944,378 | 823,500
Current | Financial asset originated | Farmland | Commercial real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 280,014 | 172,531
Current | Financial asset originated | SFR 1-4 1st DT liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 790,046 | 666,585
Current | Financial asset originated | SFR HELOCs and junior liens | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 392,621 | 335,904
Current | Financial asset originated | Other | Consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 56,613 | $ 66,934

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3B -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=tcbk_CommercialAndIndustrialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=tcbk_ConstructionPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=tcbk_AgricultureProductionPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_FinanceLeasesPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tcbk_CRENonOwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tcbk_CREOwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tcbk_AgricultureLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tcbk_SFR141stDTLiensMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=tcbk_OtherLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditLossStatusAxis=us-gaap_FinancialAssetOriginatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetNotPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |