CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION
Securities held to maturity	$ 404.3	$ 437.3
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	11,062,729	10,949,965
Common stock, shares outstanding	11,062,729	10,949,965