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Fair Value (Reconciliation Of Level 3 Input For Financial Instruments Measured On Recurring Basis) (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Investments, Fair Value Disclosure | $ 0 |  | $ 0 |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Included in other comprehensive income | $ 5 | $ 7 |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Reconciliation Of Level 3 Input For Financial Instruments Measured On Recurring Basis | The tables below present a reconciliation of the beginning and ending balances of the Level 3 inputs for the three months ended March 31, 2021 and 2020, for financial instruments measured on a recurring basis and classified as Level 3:
Level 3 Fair Value Measurements
Three months ended March 31, 2021 and 2020
(In thousands) |  | Equity Securities |  | Fair value swap
Balance at January 1, 2021 |  | $ | 485 |  |  | $ | (226) |
Total gains (losses) |  |  |  |
Included in other income |  | 5 |  |  | — |
Balance at March 31, 2021 |  | $ | 490 |  |  | $ | (226) |
Balance at January 1, 2020 |  | $ | 456 |  |  | $ | (226) |
Total gains (losses) |  |  |  |
Included in other income |  | 7 |  |  | — |
Balance at March 31, 2020 |  | $ | 463 |  |  | $ | (226) |
Fair Value, Recurring [Member] | Equity Securities [Member] |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Investments, Fair Value Disclosure | $ 2,012 |  | 2,511 |
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Equity Securities [Member] |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Investments, Fair Value Disclosure | 490 |  | 485 |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, beginning | 490 | 463 | 485 | $ 456
Balance, ending | 490 | 463 | 485 | 456
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Swap [Member] |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, beginning | (226) | (226) | (226) | (226)
Included in other comprehensive income |  | 0 |  |
Balance, ending | $ (226) | $ (226) | $ (226) | $ (226)

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in income 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)(1) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from liability 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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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + 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 (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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