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Investments (Held-to-Maturity) (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost $ 33,656 $ 23,515
Gross Unrealized Losses (24) (62)
Fair Value 33,632 23,453
Corporate and Agency Bonds (due within 1 year)    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 32,313 21,612
Gross Unrealized Losses (23) (60)
Fair Value 32,290 21,552
Corporate bonds (due within 1 to 3 years)    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 964  
Gross Unrealized Losses (1)  
Fair Value 963  
Municipal Bonds [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 379 1,903
Gross Unrealized Losses   (2)
Fair Value $ 379 $ 1,901