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Derivative Financial Instruments and Hedging Activities - Narrative (Details) - Fair value hedge - Designated as hedging instrument $ in Thousands | Sep. 30, 2021 USD ($) derivative | Dec. 31, 2020 USD ($)
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Derivatives, Fair Value [Line Items] |  |
Interest rate swaps accrued interest | $ | $ 10 | $ 11
Interest rate swap |  |
Derivatives, Fair Value [Line Items] |  |
Number of instruments held | derivative | 4 |

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- Definition The number of derivative instruments of a particular group held by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 + Details
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- Details
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