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Fair Values (Summary of Changes in Level 3 Assets) (Details) - Recurring Basis - Fair Value, Inputs, Level 3 - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | $ 25,274 | $ 23,896
Purchases | 3,375 |
Repayments | (200) | (460)
Unrealized gains (losses) recorded in other comprehensive income | (357) | 1,838
Ending balance | $ 28,092 | $ 25,274

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- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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