Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Intangibles recorded from acquisitions	$ 27,722	$ 15,284
Accumulated amortization	(44,028)	(36,079)
Total acquisition-related intangibles	49,399
Total gross intangibles	68,196	52,911
Total acquisition-related intangibles	51,890	32,116
Servicing rights	1,498	1,816
Total other intangibles	53,388	33,932
Indefinite-Lived Trade Names
Finite-Lived Intangible Assets [Line Items]
Intangibles recorded from acquisitions	0	1,217
Gross intangibles	2,491	1,274
Total acquisition-related intangibles	2,491	2,491
Core Deposits
Finite-Lived Intangible Assets [Line Items]
Gross intangibles	26,464	26,464
Intangibles recorded from acquisitions	27,722	0
Accumulated amortization	(23,952)	(20,667)
Total acquisition-related intangibles	30,234	5,797
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Gross intangibles	39,241	25,173
Intangibles recorded from acquisitions	0	14,067
Accumulated amortization	(20,076)	(15,412)
Total acquisition-related intangibles	$ 19,165	$ 23,828