XML 105 R75.htm IDEA: XBRL DOCUMENT v3.6.0.2

LOANS - Summary of Past Due Loans for Business Activities Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	$ 6,549,787	$ 5,725,236
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	2,616,438	2,059,767
Commercial real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	287,509	253,670
Commercial real estate | Single and multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	317,491	251,606
Commercial real estate | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	2,011,438	1,554,491
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	1,062,038	1,048,263
Commercial and industrial | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	740,768	717,010
Commercial and industrial | Asset based lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	321,270	331,253
Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	1,893,131	1,815,035
Residential | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	11,982	28,055
Residential | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	1,881,149	1,786,980
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	978,180	802,171
Consumer | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	393,800	360,605
Consumer | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	584,380	441,566
Business Activities Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	32,277	28,981
Current	5,189,030	4,531,702
Total loans	5,221,307	4,560,683
Past Due greater than 90 days and Accruing	2,438	2,272
Business Activities Loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,174	8,120
Business Activities Loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,849	3,105
Business Activities Loans | 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	19,254	17,756
Business Activities Loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,288	5,993
Current	1,918,056	1,628,034
Total loans	1,926,344	1,634,027
Past Due greater than 90 days and Accruing	155	0
Business Activities Loans | Commercial real estate | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	58
Current	253,302	210,138
Total loans	253,302	210,196
Past Due greater than 90 days and Accruing	0	0
Business Activities Loans | Commercial real estate | Single and multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,352	295
Current	190,467	214,528
Total loans	191,819	214,823
Past Due greater than 90 days and Accruing	155	0
Business Activities Loans | Commercial real estate | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,936	5,640
Current	1,474,287	1,203,368
Total loans	1,481,223	1,209,008
Past Due greater than 90 days and Accruing	0	0
Business Activities Loans | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,099	1,588
Business Activities Loans | Commercial real estate | 30-59 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial real estate | 30-59 Days Past Due | Single and multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	618	65
Business Activities Loans | Commercial real estate | 30-59 Days Past Due | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	481	1,523
Business Activities Loans | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,353	991
Business Activities Loans | Commercial real estate | 60-89 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial real estate | 60-89 Days Past Due | Single and multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	110	160
Business Activities Loans | Commercial real estate | 60-89 Days Past Due | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,243	831
Business Activities Loans | Commercial real estate | 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,836	3,414
Business Activities Loans | Commercial real estate | 90 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	58
Business Activities Loans | Commercial real estate | 90 Days Past Due | Single and multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	624	70
Business Activities Loans | Commercial real estate | 90 Days Past Due | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,212	3,286
Business Activities Loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10,681	10,077
Current	897,421	817,155
Total loans	908,102	827,232
Past Due greater than 90 days and Accruing	5	146
Business Activities Loans | Commercial and industrial | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10,681	10,077
Current	576,151	485,902
Total loans	586,832	495,979
Past Due greater than 90 days and Accruing	5	146
Business Activities Loans | Commercial and industrial | Asset based lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	321,270	331,253
Total loans	321,270	331,253
Past Due greater than 90 days and Accruing	0	0
Business Activities Loans | Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,090	1,202
Business Activities Loans | Commercial and industrial | 30-59 Days Past Due | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,090	1,202
Business Activities Loans | Commercial and industrial | 30-59 Days Past Due | Asset based lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,301	1,105
Business Activities Loans | Commercial and industrial | 60-89 Days Past Due | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,301	1,105
Business Activities Loans | Commercial and industrial | 60-89 Days Past Due | Asset based lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Commercial and industrial | 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,290	7,770
Business Activities Loans | Commercial and industrial | 90 Days Past Due | Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,290	7,770
Business Activities Loans | Commercial and industrial | 90 Days Past Due | Asset based lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,283	8,698
Current	1,588,689	1,472,239
Total loans	1,594,972	1,480,937
Past Due greater than 90 days and Accruing	1,956	2,006
Business Activities Loans | Residential | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10	0
Current	11,168	26,704
Total loans	11,178	26,704
Past Due greater than 90 days and Accruing	0	0
Business Activities Loans | Residential | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,273	8,698
Current	1,577,521	1,445,535
Total loans	1,583,794	1,454,233
Past Due greater than 90 days and Accruing	1,956	2,006
Business Activities Loans | Residential | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,403	3,537
Business Activities Loans | Residential | 30-59 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10	0
Business Activities Loans | Residential | 30-59 Days Past Due | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,393	3,537
Business Activities Loans | Residential | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	701	857
Business Activities Loans | Residential | 60-89 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Residential | 60-89 Days Past Due | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	701	857
Business Activities Loans | Residential | 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,179	4,304
Business Activities Loans | Residential | 90 Days Past Due | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Business Activities Loans | Residential | 90 Days Past Due | 1-4 family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,179	4,304
Business Activities Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,025	4,213
Current	784,864	614,274
Total loans	791,889	618,487
Past Due greater than 90 days and Accruing	322	120
Business Activities Loans | Consumer | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,080	2,241
Current	310,441	304,918
Total loans	313,521	307,159
Past Due greater than 90 days and Accruing	306	61
Business Activities Loans | Consumer | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,945	1,972
Current	474,423	309,356
Total loans	478,368	311,328
Past Due greater than 90 days and Accruing	16	59
Business Activities Loans | Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,582	1,793
Business Activities Loans | Consumer | 30-59 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	99	563
Business Activities Loans | Consumer | 30-59 Days Past Due | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,483	1,230
Business Activities Loans | Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	494	152
Business Activities Loans | Consumer | 60-89 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	20
Business Activities Loans | Consumer | 60-89 Days Past Due | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	494	132
Business Activities Loans | Consumer | 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,949	2,268
Business Activities Loans | Consumer | 90 Days Past Due | Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,981	1,658
Business Activities Loans | Consumer | 90 Days Past Due | Auto and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 968	$ 610

X

- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5111-111524

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Financing receivables that are current.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524

+ Details

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

X

- Definition

Recorded Investment in financing receivables that are past due at the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentPastDue
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

- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5074-111524

+ Details

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

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
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:

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=bhlb_A1to4FamilyMember
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_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=bhlb_LoansFromBusinessActivitiesMember
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: