CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
CONSOLIDATED BALANCE SHEETS
Available-for-sale investment securities, amortized cost	$ 2,091,034	$ 2,190,448
Investment securities held-to-maturity	$ 3,250,275	$ 3,262,509
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	300,000,000	300,000,000
Common stock, issued (in shares)	142,139,353	141,748,847
Common stock outstanding (in shares)	125,692,598	126,422,898
Common stock repurchased (in shares)	16,446,755	15,325,949