Consolidated Statements of Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Held-to-Maturity: Fair Value	$ 3,823,655	$ 3,820,882
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, authorized (in shares)	500,000,000	500,000,000
Common Stock, issued (in shares)	58,765,864	58,765,907
Common Stock, outstanding (in shares)	39,734,304	39,762,255
Treasury Stock (in shares)	19,031,560	19,003,609
Series A Preferred Stock [Member]
Preferred Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, authorized (in shares)	180,000	180,000
Preferred Stock, issued (in shares)	180,000	180,000
Preferred Stock, outstanding (in shares)	180,000	180,000
Series B Preferred Stock [Member]
Preferred Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, authorized (in shares)	165,000	165,000
Preferred Stock, issued (in shares)	165,000	165,000
Preferred Stock, outstanding (in shares)	165,000	165,000