Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Interest-bearing deposits in other banks, collateral	$ 5,050	$ 7,390
Amortized Cost	5,249,882	2,450,265
Allowance for credit losses on held-to-maturity debt securities	4	6
Investment securities, held-to-maturity-at cost, fair value	94,131	116,421
Allowance for credit losses on loans and leases	$ 94,507	$ 228,804
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)	57,695,676	57,575,783
Treasury stock (in shares)	10,086,936	9,819,627