Consolidated Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Assets
Securities available-for-sale, amortized cost	$ 1,959,007,000	$ 2,270,709,000
Securities available-for-sale, allowance for credit Losses (ACL)	0	0
Securities held to maturity, net of ACL	0	0
Securities held to maturity, fair value	$ 1,355,504,000	$ 1,406,589,000
Shareholders' Equity
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	250,000,000	250,000,000
Common stock, issued (in shares)	61,071,173	60,977,686
Common stock, outstanding (in shares)	61,071,173	60,977,686