XML 65 R54.htm IDEA: XBRL DOCUMENT v3.22.2.2

Allowance for Credit Losses - Analysis of Past Due and Nonaccrual Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Loans	$ 6,314,290	$ 4,916,624
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,238,930	3,306,054
Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,217,297	1,071,551
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	534,960	259,355
Construction
Financing Receivable, Past Due [Line Items]
Loans	243,571	222,281
Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	71,599	50,811
Leases
Financing Receivable, Past Due [Line Items]
Loans	7,933	6,572
CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,062,406	1,603,141
CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	969,588	706,307
Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	927,557	823,500
Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	279,379	173,106
SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	765,029	666,960
SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	394,136	337,513
Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	58,132	67,078
Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	6,314,290	4,916,624
Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,238,930	3,306,054
Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,217,297	1,071,551
Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	534,960	259,355
Financial Asset Originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	243,571	222,281
Financial Asset Originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	71,599	50,811
Financial Asset Originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	7,933	6,572
Financial Asset Originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,062,406	1,603,141
Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	969,588	706,307
Financial Asset Originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	927,557	823,500
Financial Asset Originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	279,379	173,106
Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	765,029	666,960
Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	394,136	337,513
Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	58,132	67,078
Total Past Due Loans | Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	6,471	4,332
Total Past Due Loans | Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,041	1,509
Total Past Due Loans | Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	3,168	2,128
Total Past Due Loans | Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	1,089	557
Total Past Due Loans | Financial Asset Originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	85	90
Total Past Due Loans | Financial Asset Originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	88	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	503	263
Total Past Due Loans | Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	764	671
Total Past Due Loans | Financial Asset Originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
Total Past Due Loans | Financial Asset Originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	774	575
Total Past Due Loans | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	745	375
Total Past Due Loans | Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	2,274	1,609
Total Past Due Loans | Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	149	144
30-59 days | Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	3,142	836
30-59 days | Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	1,138	497
30-59 days | Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,335	145
30-59 days | Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	669	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	113	226
30-59 days | Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	689	271
30-59 days | Financial Asset Originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	0
30-59 days | Financial Asset Originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	336	0
30-59 days | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	15	0
30-59 days | Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,257	36
30-59 days | Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	63	109
60-89 days | Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	1,095	880
60-89 days | Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	604	164
60-89 days | Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	211	381
60-89 days | Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	280	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	166	37
60-89 days | Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	0	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	438	0
60-89 days | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	114	13
60-89 days | Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	53	361
60-89 days | Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	44	7
> 90 days | Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	2,234	2,616
> 90 days | Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	299	848
> 90 days | Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,622	1,602
> 90 days | Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	140	166
> 90 days | Financial Asset Originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	85	0
> 90 days | Financial Asset Originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	88	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	224	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	616	362
> 90 days | Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	964	1,212
> 90 days | Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	42	28
Current | Financial Asset Originated
Financing Receivable, Past Due [Line Items]
Loans	6,307,819	4,912,292
Current | Financial Asset Originated | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	4,236,889	3,304,545
Current | Financial Asset Originated | Consumer
Financing Receivable, Past Due [Line Items]
Loans	1,214,129	1,069,423
Current | Financial Asset Originated | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	533,871	258,798
Current | Financial Asset Originated | Construction
Financing Receivable, Past Due [Line Items]
Loans	243,486	222,191
Current | Financial Asset Originated | Agriculture production
Financing Receivable, Past Due [Line Items]
Loans	71,511	50,763
Current | Financial Asset Originated | Leases
Financing Receivable, Past Due [Line Items]
Loans	7,933	6,572
Current | Financial Asset Originated | CRE non-owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	2,061,903	1,602,878
Current | Financial Asset Originated | CRE owner occupied | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	968,824	705,636
Current | Financial Asset Originated | Multifamily | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	927,557	823,500
Current | Financial Asset Originated | Farmland | Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	278,605	172,531
Current | Financial Asset Originated | SFR 1-4 1st DT liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	764,284	666,585
Current | Financial Asset Originated | SFR HELOCs and junior liens | Consumer
Financing Receivable, Past Due [Line Items]
Loans	391,862	335,904
Current | Financial Asset Originated | Other | Consumer
Financing Receivable, Past Due [Line Items]
Loans	$ 57,983	$ 66,934

X

- Definition

Amount excluding accrued interest, before allowance for credit loss, of financing receivable.

+ 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 http://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 http://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 http://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: