SECURITIES LENDING - Schedule of contractual gross and net securities borrowing and lending balances (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Securities borrowed
Gross amounts recognized	$ 2,870,939	$ 2,343,327
Securities borrowed, gross amounts offset in the consolidated balance sheets	0	0
Net amounts included in the consolidated balance sheets	2,870,939	2,343,327
Amounts not offset in the consolidated balance sheets but eligible for offsetting upon counterparty default	2,870,939	2,343,327
Net amounts	0	0
Securities loaned
Gross amounts recognized	2,859,306	2,334,031
Securities loaned, gross amounts offset in the consolidated balance sheets	0	0
Net amounts included in the consolidated balance sheets	2,859,306	2,334,031
Amounts not offset in the consolidated balance sheets but eligible for offsetting upon counterparty default	2,859,306	2,334,031
Net amounts	$ 0	$ 0

Amount, after the effects of master netting arrangements, of securities borrowed from entities in exchange for collateral. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value of the securities received as collateral against securities borrowed.

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Fair value of the securities pledged as collateral against securities loaned.

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