Goodwill and Other Intangible Assets - Changes in Goodwill and Other Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finite-lived Intangible Assets [Roll Forward]
Core deposit premiums, beginning of period	$ 112,645
Amortization of intangibles	(15,403)	$ (16,306)	$ (15,915)
Core deposit premiums, end of period	97,242	112,645
Core Deposit Premium
Finite-lived Intangible Assets [Roll Forward]
Core deposit premiums, beginning of period	101,344	116,016
Amortization of intangibles	(13,769)	(14,672)	(14,300)
Core deposit premiums, end of period	87,575	101,344	116,016
Books of Business Intangible
Finite-lived Intangible Assets [Roll Forward]
Core deposit premiums, beginning of period	11,301	12,935
Amortization of intangibles	(1,634)	(1,634)	(1,600)
Core deposit premiums, end of period	$ 9,667	$ 11,301	$ 12,935