XML 57 R43.htm IDEA: XBRL DOCUMENT
v3.20.4

Borrowings (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Borrowings [Abstract] |
Information Related to Short-term Borrowings | Information related to short-term borrowings is summarized as follows as of December 31:
(Dollars in thousands) |  | 2020 |  |  | 2019 |  |  | 2018 |
Federal funds purchased: |  |  |  |  |  |  |  |  |
Balance at year-end |  | $ | - |  |  | $ | 65,000 |  |  | $ | 80,000 |
Average during the year |  |  | 14,727 |  |  |  | 47,137 |  |  |  | 66,839 |
Maximum month end balance |  |  | 40,000 |  |  |  | 80,000 |  |  |  | 80,000 |
Weighted average rate during the year |  |  | 2.05 | % |  |  | 3.90 | % |  |  | 3.43 | %
Weighted average rate at year-end |  |  | - |  |  |  | 2.84 | % |  |  | 4.25 | %
Securities sold under repurchase agreements: |  |  |  |  |  |  |  |  |  |  |  |
Balance at year-end |  | $ | 143,386 |  |  | $ | 143,775 |  |  | $ | 160,696 |
Average during the year |  |  | 154,383 |  |  |  | 123,337 |  |  |  | 146,135 |
Maximum month end balance |  |  | 176,840 |  |  |  | 146,410 |  |  |  | 170,350 |
Weighted average rate during the year |  |  | 0.17 | % |  |  | 0.33 | % |  |  | 0.16 | %
Weighted average rate at year-end |  |  | 0.20 | % |  |  | 0.40 | % |  |  | 0.38 | %
Other short-term borrowings: |  |  |  |  |  |  |  |  |  |  |  |
Balance at year-end |  | $ | 25,000 |  |  | $ | 446,500 |  |  | $ | 631,000 |
Average during the year |  |  | 183,699 |  |  |  | 403,453 |  |  |  | 514,662 |
Maximum month end balance |  |  | 366,500 |  |  |  | 576,000 |  |  |  | 653,000 |
Weighted average rate during the year |  |  | 1.55 | % |  |  | 1.85 | % |  |  | 1.56 | %
Weighted average rate at year-end |  |  | 1.99 | % |  |  | 1.73 | % |  |  | 1.82 | %
Summary of Long-term Debt | Long-term debt consists of obligations having an original maturity at issuance of more than one year. A majority of the Company’s long-term debt is comprised of FHLB advances collateralized by the FHLB stock owned by the Company, and a blanket lien on its residential real estate mortgage loans. As of December 31, 2020 the Company had no callable long-term debt. A summary is as follows:
(Dollars in thousands) | December 31, 2020 |  | December 31, 2019
Maturity | Amount | Weighted Average Rate |  | Amount | Weighted Average Rate
2020 | $ | - | - |  | $ | 25,000 | 2.34%
2021 |  | 25,003 | 2.56% |  |  | 25,021 | 2.56%
2022 |  | 10,598 | 2.53% |  |  | 10,598 | 2.53%
2031 |  | 3,496 | 2.45% |  |  | 3,592 | 2.45%
Total | $ | 39,097 |  |  | $ | 64,211 |
Subordinated Debt | The following table summarizes the Company’s subordinated debt:
(Dollars in thousands) |  |  |  |  | December 31, 2020 |
Subordinated notes issued June 2020 – fixed interest rate of 5.00% through June 2025 and a variable interest rate equivalent to three-month SOFR plus 4.85% thereafter, maturing July 1, 2030 |  |  | - |  |  | $ | 100,000 |
Unamortized debt issuance costs |  |  |  |  |  |  | (1,948 | )
Total subordinated debt, net |  |  |  |  |  | $ | 98,052 |
Schedule of Debt of VIE where Entity is not Primary Beneficiary | As of December 31, 2020, the Trusts had the following trust preferred securities outstanding and held the following junior subordinated debentures of the Company (dollars in thousands):
Description | Issuance Date |  | Trust Preferred Securities Outstanding |  | Interest Rate |  | Trust Preferred Debt Owed To Trust |  | Final Maturity Date
CNBF Capital Trust I | August 1999 |  | $ | 18,000 |  | 3-month LIBOR plus 2.75% |  | $ | 18,720 |  | August 2029
NBT Statutory Trust I | November 2005 |  |  | 5,000 |  | 3-month LIBOR plus 1.40% |  |  | 5,155 |  | December 2035
NBT Statutory Trust II | February 2006 |  |  | 50,000 |  | 3-month LIBOR plus 1.40% |  |  | 51,547 |  | March 2036
Alliance Financial Capital Trust I | December 2003 |  |  | 10,000 |  | 3-month LIBOR plus 2.85% |  |  | 10,310 |  | January 2034
Alliance Financial Capital Trust II | September 2006 |  |  | 15,000 |  | 3-month LIBOR plus 1.65% |  |  | 15,464 |  | September 2036

X
- Definition Tabular disclosure of borrowings under subordinated debt agreements. + References No definition available. + Details
Name: | nbtb_ScheduleOfSubordinatedDebtTableTextBlock
Namespace Prefix: | nbtb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28541-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
Name: | us-gaap_ScheduleOfDebtInstrumentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturity and sinking fund requirement for long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of short-term debt arrangements (having initial terms of repayment within one year or the normal operating cycle, if longer) including: (1) description of the short-term debt arrangement; (2) identification of the lender or type of lender; (3) repayment terms; (4) weighted average interest rate; (5) carrying amount of funds borrowed under the specified short-term debt arrangement as of the balance sheet date; (6) description of the refinancing of a short-term obligation when that obligation is excluded from current liabilities in the balance sheet; and (7) amount of a short-term obligation that has been excluded from current liabilities in the balance sheet because of a refinancing of the obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfShortTermDebtTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration