XML 50 R39.htm IDEA: XBRL DOCUMENT v3.24.3

Loans and Allowance for Credit Losses - Summary of Loans by Credit Quality Risk Rating (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	$ 3,426,043	$ 3,033,392
Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount)	(7,211)	(7,300)
Loans receivable	3,418,832	3,026,092
Commercial and industrial loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	152,161	149,502
Construction, land and land development loans
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable
Real Estate Portfolio Segment | Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	212,467	225,391
Real Estate Portfolio Segment | Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	1,362,452	1,303,533
Consumer and other loans:
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	14,173	1,628
Pass [Member] | Commercial and industrial loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	148,653	146,223
Pass [Member] | Real Estate Portfolio Segment | Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	208,943	221,935
Pass [Member] | Real Estate Portfolio Segment | Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	1,334,780	1,283,534
Pass [Member] | Consumer and other loans:
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	14,173	1,628
Substandard [Member] | Commercial and industrial loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	198	0
Substandard [Member] | Real Estate Portfolio Segment | Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	2,326	170
Substandard [Member] | Real Estate Portfolio Segment | Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	831	7,975
Substandard [Member] | Consumer and other loans:
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] | Commercial and industrial loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] | Real Estate Portfolio Segment | Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] | Real Estate Portfolio Segment | Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] | Consumer and other loans:
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Other Loan Especially Mentioned | Commercial and industrial loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	3,310	3,279
Other Loan Especially Mentioned | Real Estate Portfolio Segment | Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	1,198	3,286
Other Loan Especially Mentioned | Real Estate Portfolio Segment | Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	26,841	12,024
Other Loan Especially Mentioned | Consumer and other loans:
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	$ 0	$ 0

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/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481598/310-20-45-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-4

Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-SubTopic 20
-Topic 310
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481569/310-20-50-3

+ Details

Name:	us-gaap_FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount
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_LoansAndLeasesReceivableDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=ck1437958_CommercialAndIndustrialLoansPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=ck1437958_ConstructionLandAndLandDevelopmentPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=ck1437958_RealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ck1437958_ResidentialRealEstateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ck1437958_CommercialRealEstateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=ck1437958_ConsumerAndOtherLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: