OFFSETTING ASSETS AND LIABILITIES - Schedule Of Assets and Liabilities Subject To Master netting Arrangements (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Gross amount of securities borrowed	$ 345	$ 372
Gross amount offset on the consolidated balance sheets	0	0
Amounts of assets presented on the unaudited condensed consolidated balance sheets	345	372
Securities borrowed	345	372
Security collateral received	(329)	(361)
Net amount	16	11
Liabilities
Gross amount of securities loaned	3,651,035	1,921,118
Gross amount of securities loaned offset on the consolidated balance sheets	0	0
Amounts of liabilities presented on the consolidated balance sheets	3,651,035	1,921,118
Securities loaned	3,651,035	1,921,118
Security collateral pledged	(3,426,766)	(1,787,819)
Net amount	$ 224,269	$ 133,299