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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, 2024

Mar. 31, 2023

Dec. 31, 2023

Dec. 31, 2022

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Investments, Fair Value Disclosure

$ 6,372

$ 6,349

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

Included in other comprehensive income

$ 22

$ 0

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 periods ended March 31, 2024 and 2023, for financial instruments measured on a recurring basis and classified as Level 3:

Level 3 Fair Value Measurements
Three months ended March 31, 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
Included in other income						—						22						—
Included in other comprehensive income						23						—						—
Purchases, sales, issuances and settlements, other, net						—						—						—
Balance at March 31, 2024						$	6,372					$	495					$	(123)
Balance at January 1, 2023						$	7,000					$	439					$	(243)
Transfer into level 3						622						—						—
Total gains / (losses)
Included in other income						—						10						—
Included in other comprehensive income						(767)						—						—
Purchases, sales, issuances and settlements, other, net						—						—						122
Balance at March 31, 2023						$	6,855					$	449					$	(121)

Equity Securities [Member]

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

Included in other comprehensive income

10

Swap [Member]

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

Included in other comprehensive income

0

Corporate Debt Securities

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Investments, Fair Value Disclosure

$ 20,255

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

2,092

2,089

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)

23

(767)

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3

0

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

495

473

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

Balance, beginning

495

449

473

$ 439

Balance, ending

495

449

473

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

(123)

(121)

(123)

(243)

Included in other comprehensive income

0

Balance, ending

(123)

(121)

(123)

(243)

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements)

0

122

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

6,372

6,855

6,349

7,000

Balance, ending

$ 6,372

$ 6,855

$ 6,349

$ 7,000

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Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

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Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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