XML 41 R31.htm IDEA: XBRL DOCUMENT v3.23.3
FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Sep. 30, 2023
Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]        
Gross realized gains (losses)   $ 0 $ 0  
Net unrealized losses on AFS debt securities, net of tax     77,900,000 $ 154,200,000
Level 1        
Debt and Equity Securities, FV-NI [Line Items]        
Decreases in fair value on equity investments     (400,000)  
Level 2        
Debt and Equity Securities, FV-NI [Line Items]        
Changes in fair value on equity investments that lack readily determinable market values $ 0   $ (5,600,000)