XML 42 R30.htm IDEA: XBRL DOCUMENT
v3.19.1

LEASES (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2019
LEASES [Abstract] |
Components of Lease Expense | The components of lease expense are as follows:
(000’s omitted) |  | Three Months Ended March 31, 2019 |
Operating lease cost |  | $ | 2,117 |
Short-term lease cost (1) |  |  | 54 |
Total lease cost |  | $ | 2,171 |
(1) | Short-term lease cost includes the cost of leases with terms of twelve months or less, excluding leases with terms of one month or less.
Supplemental Cash Flow Information Related to Leases | Supplemental cash flow information related to leases is as follows:
(000’s omitted) |  | Three Months Ended March 31, 2019 |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |
Operating cash outflows for operating leases |  | $ | 2,030 |
Right-of-use assets obtained in exchange for lease obligations: |  |  |  |
Operating leases |  |  | 2,969 |
Supplemental Balance Sheet Information Related to Leases | Supplemental balance sheet information related to leases is as follows:
(000’s omitted, except lease term and discount rate) |  | Three Months Ended March 31, 2019 |
Operating leases |  |  |
Operating lease right-of-use assets |  | $ | 34,956 |
Operating lease liabilities |  |  | 35,630 |
Weighted average remaining lease term |  |  |
Operating leases |  | 6.7 years |
Weighted average discount rate |  |  |  |
Operating leases |  |  | 3.26 | %
Operating Leases [Abstract] |
Maturities of Lease Liabilities | Maturities of lease liabilities as of March 31, 2019 are as follows:
(000’s omitted) |  | Operating Leases |
Apr - Dec 2019 |  | $ | 6,534 |
2020 |  |  | 7,967 |
2021 |  |  | 6,396 |
2022 |  |  | 5,143 |
2023 |  |  | 3,393 |
Thereafter |  |  | 10,653 |
Total lease payments |  |  | 40,086 |
Less imputed interest |  |  | (4,456 | )
Total |  | $ | 35,630 |
706 North Clinton, LLC [Member] |
Operating Leases [Abstract] |
Maturities of Lease Liabilities | The maturities of the Company’s related party lease liabilities as of March 31, 2019 are as follows:
(000’s omitted) |  | 706 North Clinton, LLC |
Apr - Dec 2019 |  | $ | 443 |
2020 |  |  | 591 |
2021 |  |  | 591 |
2022 |  |  | 591 |
2023 |  |  | 591 |
Thereafter |  |  | 3,538 |
Total lease payments |  |  | 6,345 |
Less imputed interest |  |  | (1,105 | )
Total |  | $ | 5,240 |

X
- Definition Tabular disclosure of lessee's right of use assets and lease liabilities. + References No definition available. + Details
Name: | cbu_LesseeOperatingLeaseBalanceSheetInformationTableTextBlock
Namespace Prefix: | cbu_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of supplemental cash flow information related to operating leases. + References No definition available. + Details
Name: | cbu_LesseeOperatingLeaseCashFlowInformationTableTextBlock
Namespace Prefix: | cbu_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
Name: | us-gaap_LeaseCostTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LesseeOperatingLeaseDescriptionAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=cbu_SevenZeroSixNorthClintonMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |