XML 59 R47.htm IDEA: XBRL DOCUMENT
v3.20.4

Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Equity [Abstract] |
Summary of the components of accumulated other comprehensive income | The following table provides a roll-forward of the changes in AOCI by component for the years ended December 31, 2018, 2019 and 2020 (net of tax):
| Unrealized Gains (Losses) on AFS Securities |  | Unrealized Gains (Losses) on Derivative Instruments |  | Change in Unrecognized Pension Cost on Defined Benefit Pension Plan |  | Total
Balance, January 1, 2018 | $ | 391 |  |  | $ | 230 |  |  | $ | (3,223) |  |  | $ | (2,602) |
OCI before reclassifications | (7,229) |  |  | 33 |  |  | 265 |  |  | (6,931) |
Amounts reclassified from AOCI | — |  |  | — |  |  | 345 |  |  | 345 |
Subtotal | (7,229) |  |  | 33 |  |  | 610 |  |  | (6,586) |
Tax effect | 1,415 |  |  | (7) |  |  | (128) |  |  | 1,280 |
OCI, net of tax | (5,814) |  |  | 26 |  |  | 482 |  |  | (5,306) |
Adoption of ASU 2016-01 | 223 |  |  | — |  |  | — |  |  | 223 |
Balance, December 31, 2018 | (5,200) |  |  | 256 |  |  | (2,741) |  |  | (7,685) |
OCI before reclassifications | 12,276 |  |  | (256) |  |  | (210) |  |  | 11,810 |
Amounts reclassified from AOCI | (6) |  |  | — |  |  | 268 |  |  | 262 |
Subtotal | 12,270 |  |  | (256) |  |  | 58 |  |  | 12,072 |
Tax effect | (2,458) |  |  | 54 |  |  | (12) |  |  | (2,416) |
OCI, net of tax | 9,812 |  |  | (202) |  |  | 46 |  |  | 9,656 |
Balance, December 31, 2019 | 4,612 |  |  | 54 |  |  | (2,695) |  |  | 1,971 |
OCI before reclassifications | 7,474 |  |  | (121) |  |  | (238) |  |  | 7,115 |
Amounts reclassified from AOCI | (71) |  |  | — |  |  | 176 |  |  | 105 |
Subtotal | 7,403 |  |  | (121) |  |  | (62) |  |  | 7,220 |
Tax effect | (1,530) |  |  | 25 |  |  | 12 |  |  | (1,493) |
OCI, net of tax | 5,873 |  |  | (96) |  |  | (50) |  |  | 5,727 |
Balance, December 31, 2020 | $ | 10,485 |  |  | $ | (42) |  |  | $ | (2,745) |  |  | $ | 7,698 |
A summary of the components of unrealized gains on AFS securities included in OCI follows for the years ended December 31:
| 2020 |  | 2019 |  | 2018
| Auction Rate Money Market Preferred Stocks |  | All Other AFS Securities |  | Total |  | Auction Rate Money Market Preferred Stocks |  | All Other AFS Securities |  | Total |  | Auction Rate Money Market Preferred Stocks |  | All Other AFS Securities |  | Total
Unrealized gains (losses) arising during the period | $ | 118 |  |  | $ | 7,356 |  |  | $ | 7,474 |  |  | $ | 565 |  |  | $ | 11,711 |  |  | $ | 12,276 |  |  | $ | (495) |  |  | $ | (6,734) |  |  | $ | (7,229) |
Reclassification adjustment for net (gains) losses included in net income | — |  |  | (71) |  |  | (71) |  |  | — |  |  | (6) |  |  | (6) |  |  | — |  |  | — |  |  | — |
Net unrealized gains (losses) | 118 |  |  | 7,285 |  |  | 7,403 |  |  | 565 |  |  | 11,705 |  |  | 12,270 |  |  | (495) |  |  | (6,734) |  |  | (7,229) |
Tax effect | — |  |  | (1,530) |  |  | (1,530) |  |  | — |  |  | (2,458) |  |  | (2,458) |  |  | — |  |  | 1,415 |  |  | 1,415 |
Unrealized gains (losses), net of tax | $ | 118 |  |  | $ | 5,755 |  |  | $ | 5,873 |  |  | $ | 565 |  |  | $ | 9,247 |  |  | $ | 9,812 |  |  | $ | (495) |  |  | $ | (5,319) |  |  | $ | (5,814) |
Details about accumulated other comprehensive income components | The following table details reclassification adjustments and the related affected line items in our consolidated statements of income for the years ended December 31:
Details about AOCI components | Amount Reclassified from AOCI |  | Affected Line Item in the Consolidated Statements of Income
| 2020 |  | 2019 |  | 2018 |  |
Unrealized gains (losses) on AFS securities |  |  |  |  |  |  |
| $ | 71 |  |  | $ | 6 |  |  | $ | — |  |  | Net gains on sale of AFS securities
| 15 |  |  | 1 |  |  | — |  |  | Federal income tax expense
| $ | 56 |  |  | $ | 5 |  |  | $ | — |  |  | Net income
Change in unrecognized pension cost on defined benefit pension plan |  |  |  |  |  |  |
| $ | 176 |  |  | $ | 268 |  |  | $ | 345 |  |  | Other noninterest expenses
| 37 |  |  | 56 |  |  | 72 |  |  | Federal income tax expense
| $ | 139 |  |  | $ | 212 |  |  | $ | 273 |  |  | Net income

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

X
- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
Name: | us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration