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Changes to Accumulated Other Comprehensive Income, Net - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Beginning Balance | $ 266,826 | $ 95,160 | $ 108,200 | [1] | $ 92,337
Change in net unrealized holding gains (losses) on securities available for sale, net of deferred tax expense (benefit) | (684) | 261 | (2,419) |  | (269)
Reclassification for previously unrealized net gains recognized in net income, net of tax expense | 0 | 165 | 0 |  | 165
Change in net unrealized holding gains (losses) on interest rate swaps, net of deferred tax (benefit) expense | 767 | 713 | 4,438 |  | (2,335)
Ending Balance | 269,720 | 99,930 | 269,720 |  | 99,930
Net Unrealized Gains (Losses) on Available-For-Sale Securities [Member] |  |  |  |  |
Beginning Balance | (666) | (107) | 1,069 |  | 423
Change in net unrealized holding gains (losses) on securities available for sale, net of deferred tax expense (benefit) | (684) | 261 | (2,419) |  | (269)
Reclassification for previously unrealized net gains recognized in net income, net of tax expense |  | 165 |  |  | 165
Change in net unrealized holding gains (losses) on interest rate swaps, net of deferred tax (benefit) expense |  | 0 |  |  | 0
Ending Balance | (1,350) | 319 | (1,350) |  | 319
Net Unrealized Gains (Losses) on Interest Rate Swaps [Member |  |  |  |  |
Beginning Balance | 2,866 | (3,242) | (805) |  | (194)
Reclassification for previously unrealized net gains recognized in net income, net of tax expense |  | 0 |  |  | 0
Change in net unrealized holding gains (losses) on interest rate swaps, net of deferred tax (benefit) expense | 767 | 713 | 4,438 |  | (2,335)
Ending Balance | 3,633 | (2,529) | 3,633 |  | (2,529)
Accumulated Other Comprehensive Income (Loss), Net [Member] |  |  |  |  |
Beginning Balance | 2,200 | (3,349) | 264 |  | 229
Change in net unrealized holding gains (losses) on securities available for sale, net of deferred tax expense (benefit) | (684) | 261 | (2,419) |  | (269)
Reclassification for previously unrealized net gains recognized in net income, net of tax expense |  | 165 |  |  | 165
Change in net unrealized holding gains (losses) on interest rate swaps, net of deferred tax (benefit) expense | 767 | 713 | 4,438 |  | (2,335)
Ending Balance | $ 2,283 | $ (2,210) | $ 2,283 |  | $ (2,210)
[1] | Derived from audited December 31, 2020 Consolidated Financial Statements.

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- Definition Amount, after tax and adjustments, of gain (loss) from increase (decrease) in value of excluded component of derivative designated and qualifying as hedge. Adjustments include, but are not limited to, reclassifications for sale and settlement, and amounts recognized under systematic and rational method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (dd) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 + Details
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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. 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