Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023
Statement of Financial Position [Abstract]
Securities, available-for-sale, amortized cost	$ 5,030,124	$ 5,243,681	$ 5,463,186
Loans held-for-sale, fair value	$ 16,513	$ 11,077	$ 11,908
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000	200,000,000
Common stock, shares issued	142,906,070	142,716,939	142,677,069
Treasury stock, shares	931,423	930,152	926,723