v3.23.3
Investment Securities and Certificates of Deposit - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Schedule Of Marketable Securities [Line Items]          
Debt Securities, Available-for-Sale, Unrealized Gain $ 69 $ 1,936 $ 262 $ 2,284  
Debt Securities, Available-for-Sale, Unrealized Loss (48) (342) (241) (365)  
Debt Securities, Available-for-Sale, Realized Loss     (261) (34)  
Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale 250,000 233,638 1,493,992 997,349  
Certificates of Deposit, at Carrying Value 84,163   $ 84,163   $ 122,890
Certificates of Deposit          
Schedule Of Marketable Securities [Line Items]          
Cash and Cash Equivalents Maturity     4 months    
Equity Securities [Member]          
Schedule Of Marketable Securities [Line Items]          
Investment Securities, Realized and Unrealized Gains (Losses) (286) (131) $ (63) (579)  
Debt Securities Carried By EGL [Member]          
Schedule Of Marketable Securities [Line Items]          
Investment Securities, Realized and Unrealized Gains (Losses) 129 1,013 147 1,541  
Investment Funds [Member]          
Schedule Of Marketable Securities [Line Items]          
Investment Securities, Realized and Unrealized Gains (Losses) (5,541) (7,454) 15,515 (38,970)  
Investment Securities, Unrealized Gain (Loss) $ (5,541) $ (7,454) $ 10,709 $ (54,670)