Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Held-to-maturity, allowance for credit losses	$ 3,214	$ 1,388
Amortized Cost	$ 3,509,709	$ 4,331,413
Common stock, Class A, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, Class A, shares authorized (in shares)	350,000,000	350,000,000
Common stock, Class A, shares issued (in shares)	125,184,119	127,046,654
Common stock, Class A, shares outstanding (in shares)	125,184,119	127,046,654