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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, 2025

Sep. 30, 2024

Sep. 30, 2025

Sep. 30, 2024

Jun. 30, 2025

Dec. 31, 2024

Jun. 30, 2024

Dec. 31, 2023

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 nine-month periods ended September 30, 2025 and 2024, for financial instruments measured on a recurring basis and classified as Level 3:

Level 3 Fair Value Measurements
Three months ended September 30, 2025 and 2024
(In thousands)						Corporate debt securities						Equity securities						Fair value swap
Balance at July 1, 2025						$	6,780					$	613					$	(109)
Transfer into (out of) level 3, net						—						—						—
Total gains / (losses)
Included in other income / other (expense)						—						8						(160)
Included in other comprehensive income						95						—						—
Balance at September 30, 2025						$	6,875					$	621					$	(269)
Balance at July 1, 2024						$	6,427					$	495					$	(123)
Transfers into (out of) level 3, net						—						—						—
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)

Level 3 Fair Value Measurements
Nine months ended September 30, 2025 and 2024
(In thousands)						Corporate debt securities						Equity securities						Fair value swap
Balance at January 1, 2025						$	6,664					$	603					$	(103)
Transfer into (out of) level 3, net						—						—						—
Total gains / (losses)
Included in other income / other (expense)						—						18						(290)
Included in other comprehensive income						211						—						—
Purchases, sales, issuances and settlements, other, net						—						—						124
Balance at September 30, 2025						$	6,875					$	621					$	(269)
Balance at January 1, 2024						$	6,349					$	473					$	(123)
Transfers into (out of) level 3, net						—						—						—
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)

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 Transfers Into Level 3

$ 0

$ 0

$ 0

$ 0

Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Equity Securities [Member]

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

Balance, beginning

621

513

621

513

$ 613

$ 603

$ 495

$ 473

Included in other comprehensive income

8

18

18

40

Balance, ending

621

513

621

513

613

603

495

473

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

(269)

(623)

(269)

(623)

(109)

(103)

(123)

(123)

Included in other comprehensive income

(160)

(500)

(290)

(500)

Balance, ending

(269)

(623)

(269)

(623)

(109)

(103)

(123)

(123)

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

124

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

6,875

6,580

6,875

6,580

6,780

6,664

6,427

6,349

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)

95

153

211

231

Balance, ending

$ 6,875

$ 6,580

$ 6,875

$ 6,580

$ 6,780

$ 6,664

$ 6,427

$ 6,349

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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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