CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Interest-bearing deposits in banks and other financial institutions, collateral	$ 5,310	$ 5,050
Amortized cost	4,940,107	5,249,882
Allowance for credit losses	10	4
Held-to-maturity securities, fair value	1,041,163	94,131
Allowance for credit losses	$ 146,195	$ 94,507
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	90,000,000	90,000,000
Common stock, issued (in shares)	75,896,354	57,695,676
Treasury stock, shares (in shares)	13,947,576	10,086,936