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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, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Jun. 30, 2022
Dec. 31, 2021
Jun. 30, 2021
Dec. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Investments, Fair Value Disclosure $ 0   $ 0     $ 0    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Included in other comprehensive income (22) $ 1 $ (30) $ 6        
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, 2022 and 2021, for financial instruments measured on a recurring basis and classified as Level 3:

Level 3 Fair Value Measurements
Three months ended September 30, 2022 and 2021
(In thousands)Equity securitiesFair value
swap
Balance at July 1, 2022$491 $(447)
Total losses  
Included in other income / expense(22) 
Purchases, sales, issuances and settlements, other, net 204 
Balance at September 30, 2022$469 $(243)
Balance at July 1, 2021$490 $(226)
Total gains   
Included in other income— 
Balance at September 30, 2021$491 $(226)
Level 3 Fair Value Measurements
Nine months ended September 30, 2022 and 2021
(In thousands)Equity securitiesFair value
swap
Balance at January 1, 2022$499 $(226)
Total losses  
Included in other income / expense(30)(221)
Purchases, sales, issuances and settlements, other, net 204 
Balance at September 30, 2022$469 $(243)
Balance at January 1, 2021$485 $(226)
Total gains   
Included in other income — 
Balance at September 30, 2021$491 491$(226)
         
Fair Value, Recurring [Member] | Equity Securities [Member]                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                
Investments, Fair Value Disclosure 1,746   $ 1,746     2,129    
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 469   469     499    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Balance, beginning 469 491 469 491 $ 491 499 $ 490 $ 485
Balance, ending 469 491 469 491 491 499 490 485
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 (243) (226) (243) (226) (447) (226) (226) (226)
Included in other comprehensive income 0 0 (221) 0        
Balance, ending (243) $ (226) (243) $ (226) $ (447) $ (226) $ (226) $ (226)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings $ 204   $ 204