XML 72 R61.htm IDEA: XBRL DOCUMENT v3.26.1

LOANS AND CREDIT QUALITY - Amortized Cost in Loans Based Upon Year of Origination and Risk Rating (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total loan receivables before allowance for credit losses	$ 13,852,209		$ 14,176,936
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Total	7,205	$ 12,217
Commercial and industrial
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	3,767		23,025
Financing receivable, year two	22,248		41,165
Financing receivable, year three	57,022		52,639
Financing receivable, year four	51,375		48,386
Financing receivable, year five	45,275		20,476
Financing receivable, more than five years	118,489		95,659
Revolving Loans Amortized Cost Basis	161,228		200,595
Revolving Loans Converted to Term	677		225
Total loan receivables before allowance for credit losses	460,081		482,170
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing receivable, year one, Gross charge-offs	0		40
Financing receivable, year two, Gross charge-offs	0		75
Financing receivable, year three, Gross charge-offs	0		47
Financing receivable, year four, Gross charge-offs	0		6,772
Financing receivable, year five, Gross charge-offs	0		230
Financing receivable, more than five years, Gross charge-offs	6		19
Revolving Loans Amortized Cost Basis	125		1,215
Revolving Loans Converted to Term	0		0
Total	131	117	8,398
Commercial and industrial | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	3,767		22,961
Financing receivable, year two	22,096		40,427
Financing receivable, year three	56,294		52,574
Financing receivable, year four	51,301		24,657
Financing receivable, year five	22,308		19,914
Financing receivable, more than five years	105,591		78,344
Revolving Loans Amortized Cost Basis	157,335		200,344
Revolving Loans Converted to Term	661		225
Total loan receivables before allowance for credit losses	419,353		439,446
Commercial and industrial | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		104
Financing receivable, year three	94		0
Financing receivable, year four	0		472
Financing receivable, year five	450		162
Financing receivable, more than five years	1,459		2,828
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	2,003		3,566
Commercial and industrial | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		64
Financing receivable, year two	152		634
Financing receivable, year three	634		65
Financing receivable, year four	74		23,257
Financing receivable, year five	22,517		400
Financing receivable, more than five years	11,439		14,487
Revolving Loans Amortized Cost Basis	3,893		251
Revolving Loans Converted to Term	16		0
Total loan receivables before allowance for credit losses	38,725		39,158
Commercial and industrial | Doubtful
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		0
Financing receivable, year five	0		0
Financing receivable, more than five years	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	0		0
Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total loan receivables before allowance for credit losses	5,291,597		5,355,252
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Total	0	$ 0
Commercial real estate | Multifamily
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	18,046		59,536
Financing receivable, year two	59,406		177,297
Financing receivable, year three	171,314		464,969
Financing receivable, year four	463,955		2,324,644
Financing receivable, year five	2,295,488		1,223,707
Financing receivable, more than five years	2,263,237		1,086,728
Revolving Loans Amortized Cost Basis	20,151		18,160
Revolving Loans Converted to Term	0		211
Total loan receivables before allowance for credit losses	5,291,597		5,355,252
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing receivable, year one, Gross charge-offs	0		0
Financing receivable, year two, Gross charge-offs	0		0
Financing receivable, year three, Gross charge-offs	0		0
Financing receivable, year four, Gross charge-offs	0		0
Financing receivable, year five, Gross charge-offs	0		0
Financing receivable, more than five years, Gross charge-offs	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial real estate | Multifamily | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	18,046		59,536
Financing receivable, year two	59,406		177,297
Financing receivable, year three	171,314		458,411
Financing receivable, year four	457,394		2,224,002
Financing receivable, year five	2,199,195		1,177,242
Financing receivable, more than five years	2,179,991		1,031,448
Revolving Loans Amortized Cost Basis	20,151		18,160
Revolving Loans Converted to Term	0		211
Total loan receivables before allowance for credit losses	5,105,497		5,146,307
Commercial real estate | Multifamily | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		32,156
Financing receivable, year five	18,312		22,062
Financing receivable, more than five years	45,657		35,772
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	63,969		89,990
Commercial real estate | Multifamily | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		6,558
Financing receivable, year four	6,561		68,486
Financing receivable, year five	77,981		24,403
Financing receivable, more than five years	37,589		19,508
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	122,131		118,955
Commercial real estate | Multifamily | Doubtful
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		0
Financing receivable, year five	0		0
Financing receivable, more than five years	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	0		0
Commercial real estate | Non-owner occupied
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		7,032
Financing receivable, year two	11,036		13,753
Financing receivable, year three	13,692		31,688
Financing receivable, year four	32,879		371,096
Financing receivable, year five	370,195		138,150
Financing receivable, more than five years	1,274,509		1,171,642
Revolving Loans Amortized Cost Basis	9,300		6,659
Revolving Loans Converted to Term	0		257
Total loan receivables before allowance for credit losses	1,711,611		1,740,277
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing receivable, year one, Gross charge-offs	0		0
Financing receivable, year two, Gross charge-offs	0		0
Financing receivable, year three, Gross charge-offs	0		0
Financing receivable, year four, Gross charge-offs	0		0
Financing receivable, year five, Gross charge-offs	0		0
Financing receivable, more than five years, Gross charge-offs	0		428
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		428
Commercial real estate | Non-owner occupied | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		7,032
Financing receivable, year two	11,036		13,753
Financing receivable, year three	13,692		31,688
Financing receivable, year four	32,879		371,096
Financing receivable, year five	370,195		138,150
Financing receivable, more than five years	1,149,482		1,057,437
Revolving Loans Amortized Cost Basis	9,300		6,659
Revolving Loans Converted to Term	0		257
Total loan receivables before allowance for credit losses	1,586,584		1,626,072
Commercial real estate | Non-owner occupied | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		0
Financing receivable, year five	0		0
Financing receivable, more than five years	37,148		32,308
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	37,148		32,308
Commercial real estate | Non-owner occupied | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		0
Financing receivable, year five	0		0
Financing receivable, more than five years	87,879		81,897
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	87,879		81,897
Commercial real estate | Non-owner occupied | Doubtful
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		0
Financing receivable, year five	0		0
Financing receivable, more than five years	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	0		0
Commercial real estate | Owner occupied
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	1,279		30,541
Financing receivable, year two	26,298		12,420
Financing receivable, year three	12,330		27,707
Financing receivable, year four	23,062		118,543
Financing receivable, year five	114,144		83,847
Financing receivable, more than five years	398,092		406,733
Revolving Loans Amortized Cost Basis	11,493		9,045
Revolving Loans Converted to Term	0		243
Total loan receivables before allowance for credit losses	586,698		689,079
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing receivable, year one, Gross charge-offs	0		0
Financing receivable, year two, Gross charge-offs	0		0
Financing receivable, year three, Gross charge-offs	0		0
Financing receivable, year four, Gross charge-offs	0		0
Financing receivable, year five, Gross charge-offs	0
Financing receivable, more than five years, Gross charge-offs	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial real estate | Owner occupied | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	1,279		30,541
Financing receivable, year two	26,298		12,420
Financing receivable, year three	12,330		27,707
Financing receivable, year four	23,062		108,047
Financing receivable, year five	97,984		73,141
Financing receivable, more than five years	357,118		371,660
Revolving Loans Amortized Cost Basis	11,493		9,045
Revolving Loans Converted to Term	0		243
Total loan receivables before allowance for credit losses	529,564		632,804
Commercial real estate | Owner occupied | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		1,660
Financing receivable, year five	7,362		6,954
Financing receivable, more than five years	34,267		28,003
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	41,629		36,617
Commercial real estate | Owner occupied | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		8,836
Financing receivable, year five	8,798		3,752
Financing receivable, more than five years	6,707		7,070
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	15,505		19,658
Commercial real estate | Owner occupied | Doubtful
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		0
Financing receivable, year five	0		0
Financing receivable, more than five years	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	0		0
Commercial real estate | Construction and land development
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	20,992		272,783
Financing receivable, year two	209,571		128,650
Financing receivable, year three	86,476		59,371
Financing receivable, year four	55,705		13,377
Financing receivable, year five	8,724		3,112
Financing receivable, more than five years	17,708		15,899
Revolving Loans Amortized Cost Basis	370		200
Revolving Loans Converted to Term	0		600
Total loan receivables before allowance for credit losses	399,546		493,992
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing receivable, year one, Gross charge-offs	0		0
Financing receivable, year two, Gross charge-offs	0		0
Financing receivable, year three, Gross charge-offs	0		0
Financing receivable, year four, Gross charge-offs	0		0
Financing receivable, year five, Gross charge-offs	0		0
Financing receivable, more than five years, Gross charge-offs	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial real estate | Construction and land development | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	20,992		272,783
Financing receivable, year two	209,571		128,650
Financing receivable, year three	86,476		59,371
Financing receivable, year four	55,705		13,377
Financing receivable, year five	8,724		3,112
Financing receivable, more than five years	14,483		12,937
Revolving Loans Amortized Cost Basis	370		200
Revolving Loans Converted to Term	0		600
Total loan receivables before allowance for credit losses	396,321		491,030
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing receivable, year five, Gross charge-offs			0
Commercial real estate | Construction and land development | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		0
Financing receivable, year five	0		0
Financing receivable, more than five years	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	0		0
Commercial real estate | Construction and land development | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		0
Financing receivable, year five	0		0
Financing receivable, more than five years	3,225		2,962
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	3,225		2,962
Commercial real estate | Construction and land development | Doubtful
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Financing receivable, year one	0		0
Financing receivable, year two	0		0
Financing receivable, year three	0		0
Financing receivable, year four	0		0
Financing receivable, year five	0		0
Financing receivable, more than five years	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total loan receivables before allowance for credit losses	$ 0		$ 0

X

- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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

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

- References

No definition available.

+ Details

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

X

- Definition

Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 3: 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

+ Details

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

X

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 3: 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

+ Details

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

X

- Definition

Amortized cost excluding accrued interest, of revolving financing receivable converted to term loan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6A

Reference 3: 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

+ Details

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

X

- Definition

Amount, excluding accrued interest, of writeoff of revolving financing receivable converted to term loan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6A

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable that can be withdrawn, repaid, and redrawn.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 3: 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

+ Details

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

X

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated four years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 3: 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

+ Details

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

X

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 3: 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

+ Details

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

X

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated in current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 3: 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

+ Details

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

X

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 3: 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

+ Details

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

X

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
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_SpecialMentionMember
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_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
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=mchb_NonOwnerOccupiedCommercialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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