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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 | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Dec. 31, 2022
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Investments, Fair Value Disclosure | $ 6,580 |  | $ 6,580 |  |  | $ 6,349 |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Included in other comprehensive income | 18 | $ 0 | $ 40 | $ 27 |  |  |  |
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 following tables present a reconciliation of the beginning and ending balances of the Level 3 inputs for the three-month and the nine-month periods ended September 30, 2024 and 2023, for financial instruments measured on a recurring basis and classified as Level 3:
Level 3 Fair Value Measurements
Three months ended September 30, 2024 and 2023
(In thousands) |  | Corporate debt securities |  | Equity securities |  | Fair value swap
Balance at July 1, 2024 |  | $ | 6,427 |  |  | $ | 495 |  |  | $ | (123) |
Transfer into (out of) level 3 |  | — |  |  | — |  |  | — |
Total gains / (losses) |  |  |  |  |  |
Included in other income / other (expense) |  | — |  |  | 18 |  |  | (500) |
Included in other comprehensive income |  | 153 |  |  | — |  |  | — |
Balance at September 30, 2024 |  | $ | 6,580 |  |  | $ | 513 |  |  | $ | (623) |
Balance at July 1, 2023 |  | $ | 6,116 |  |  | $ | 455 |  |  | $ | (296) |
Transfer into (out of) level 3, net |  | — |  |  | — |  |  | — |
Total gains |  |  |  |  |  |
Included in other income |  | — |  |  | 11 |  |  | — |
Included in other comprehensive income |  | 10 |  |  | — |  |  | — |
Purchases, sales, issuances and settlements, other, net |  | — |  |  | — |  |  | 173 |
Balance at September 30, 2023 |  | $ | 6,126 |  |  | $ | 466 |  |  | $ | (123) |
Level 3 Fair Value Measurements
Nine months ended September 30, 2024 and 2023
(In thousands) |  | Corporate debt securities |  | Equity securities |  | Fair value swap
Balance at January 1, 2024 |  | $ | 6,349 |  |  | $ | 473 |  |  | $ | (123) |
Transfer into (out of) level 3 |  | — |  |  | — |  |  | — |
Total gains / (losses) |  |  |  |  |  |
Included in other income / other (expense) |  | — |  |  | 40 |  |  | (500) |
Included in other comprehensive income |  | 231 |  |  | — |  |  | — |
Balance at September 30, 2024 |  | $ | 6,580 |  |  | $ | 513 |  |  | $ | (623) |
Balance at January 1, 2023 |  | $ | 7,000 |  |  | $ | 439 |  |  | $ | (243) |
Transfers into (out of) level 3, net |  | 11 |  |  | — |  |  | — |
Total (losses) / gains |  |  |  |  |  |
Included in other income / other (expense) |  | — |  |  | 27 |  |  | (175) |
Included in other comprehensive income |  | (885) |  |  | — |  |  | — |
Purchases, sales, issuances and settlements, other, net |  | — |  |  | — |  |  | 295 |
Balance at September 30, 2023 |  | $ | 6,126 |  |  | $ | 466 |  |  | $ | (123) |
Corporate Debt Securities |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Investments, Fair Value Disclosure | 18,679 |  | $ 18,679 |  |  | 17,897 |  |
Fair Value, Recurring [Member] | Equity Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Investments, Fair Value Disclosure | 7,861 |  | 7,861 |  |  | 2,089 |  |
Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Included in other comprehensive income |  | 11 |  |  |  |  |  |
Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | 153 | 10 | 231 | (885) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 0 | 0 | 0 | 11 |  |  |  |
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 | 513 |  | 513 |  |  | 473 |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Balance, beginning | 513 | 466 | 513 | 466 | $ 495 | 473 | $ 455 | $ 439
Balance, ending | 513 | 466 | 513 | 466 | 495 | 473 | 455 | 439
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 | (623) | (123) | (623) | (123) | (123) | (123) | (296) | (243)
Included in other comprehensive income | (500) | 0 | (500) | (175) |  |  |  |
Balance, ending | (623) | (123) | (623) | (123) | (123) | (123) | (296) | (243)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements) |  | 173 |  | 295 |  |  |  |
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Corporate Debt Securities |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Balance, beginning | 6,580 | 6,126 | 6,580 | 6,126 | 6,427 | 6,349 | 6,116 | 7,000
Balance, ending | $ 6,580 | $ 6,126 | $ 6,580 | $ 6,126 | $ 6,427 | $ 6,349 | $ 6,116 | $ 7,000

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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/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 102 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-102 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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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/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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