CONSOLIDATED VIEs - Schedule of Consolidated VIE Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
ASSETS
Cash and cash equivalents	$ 923,247	$ 971,316
Customers and other receivables	290,780	201,767
Investments	620,615	701,964
Other assets	493,513	414,518
Total Assets	4,586,970	4,635,781
LIABILITIES
Deposits and other customer payables	536,343	443,262
Other liabilities	581,725	546,947
Total Liabilities	4,049,964	4,065,919
Consolidated VIEs
ASSETS
Cash and cash equivalents	4,404	4,627
Customers and other receivables	35	23,277
Investments	161,700	196,112
Other assets	803	683
Total Assets	166,942	224,699
LIABILITIES
Deposits and other customer payables	73	23,498
Other liabilities	259	353
Total Liabilities	$ 332	$ 23,851