Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Investment securities, held to maturity fair value	$ 1,556,845	$ 1,681,309
Loans, net of allowance for credit losses	$ 49,699	$ 50,464
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, shares authorized (in shares)	99,000,000	99,000,000
Common stock, shares issued (in shares)	44,116,739	43,937,889
Common stock, shares outstanding (in shares)	44,116,739	43,937,889