CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Condensed Statement Of Financial Condition [Abstract]
Amortized cost	$ 5,863,294	$ 6,398,197
Available-for-sale, allowance for credit losses	511	458
Held to Maturity Fair value	346,132	427,115
Allowance for credit losses, Held-to-Maturity securities	2,197	8,286
Allowance for credit losses on loans and finance leases	$ 261,843	$ 260,464
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	2,000,000,000	2,000,000,000
Common Stock, Shares, Issued	223,663,116	223,663,116
Common stock, shares outstanding	169,302,812	182,709,059
Legal Surplus Amount	$ 199,576	$ 168,484
Treasury Stock Shares	54,360,304	40,954,057
Income tax expense	$ 8,581	$ 8,468