XML 74 R60.htm IDEA: XBRL DOCUMENT v3.24.0.1
Investments (Narrative) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
item
Dec. 31, 2022
USD ($)
Schedule of Available-for-sale Securities [Line Items]    
Fair value $ 472,503 $ 486,836
Percent of shareholders equity benchmark for investments in a single issuer 10.00%  
Equity securities $ 427 411
Corporate [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair value 23,198 24,239
Public Funds And Trust Deposits [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair value $ 207,400 $ 208,900
Equity Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Number of equity investments | item 1