Goodwill and Other Intangible Assets - Changes in Goodwill and Other Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Finite-lived Intangible Assets [Roll Forward]
Other intangible assets, beginning of period			$ 112,645
Amortization	$ (3,852)	$ (4,098)	(7,702)	$ (8,194)
Other intangible assets, end of period	104,943		104,943		$ 112,645
Core Deposit Premium
Finite-lived Intangible Assets [Roll Forward]
Other intangible assets, beginning of period			101,344	116,016	116,016
Amortization			(6,885)		(14,672)
Other intangible assets, end of period	94,459		94,459		101,344
Books of Business Intangible
Finite-lived Intangible Assets [Roll Forward]
Other intangible assets, beginning of period			11,301	$ 12,935	12,935
Amortization			(817)		(1,634)
Other intangible assets, end of period	$ 10,484		$ 10,484		$ 11,301