Goodwill and Other Intangible Assets - Summary of Finite-lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross  Carrying Amount	$ 84,962	$ 84,962
Accumulated Amortization	(60,864)	(54,823)
Net Carrying Amount	24,098	30,139
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
Gross  Carrying Amount	82,492	82,492
Accumulated Amortization	(59,399)	(53,539)
Net Carrying Amount	23,093	28,953
Customer relationship intangible
Finite-Lived Intangible Assets [Line Items]
Gross  Carrying Amount	2,470	2,470
Accumulated Amortization	(1,465)	(1,284)
Net Carrying Amount	$ 1,005	$ 1,186