Goodwill and Other Intangible Assets - Summary of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	$ 84,962	$ 84,962
Accumulated Amortization	(62,231)	(60,864)
Net Carrying Amount	22,731	24,098
Core deposit intangibles
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	82,492	82,492
Accumulated Amortization	(60,720)	(59,399)
Net Carrying Amount	21,772	23,093
Customer relationship intangible
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	2,470	2,470
Accumulated Amortization	(1,511)	(1,465)
Net Carrying Amount	$ 959	$ 1,005