Goodwill and Other Intangible Assets - Summary of the Gross Carrying Amount and Accumulated Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amortizable intangible assets:
Gross Carrying Amount	$ 43,782	$ 47,432
Accumulated Amortization	25,955	32,066
Unamortizable intangible assets:
Goodwill	364,263	239,272	$ 234,368
Customer lists
Amortizable intangible assets:
Gross Carrying Amount	2,700	7,613
Accumulated Amortization	1,386	2,814
Core deposit intangibles
Amortizable intangible assets:
Gross Carrying Amount	29,050	28,440
Accumulated Amortization	18,076	23,832
SBA servicing asset
Amortizable intangible assets:
Gross Carrying Amount	11,932	9,976
Accumulated Amortization	6,460	4,188
Other
Amortizable intangible assets:
Gross Carrying Amount	100	1,403
Accumulated Amortization	$ 33	$ 1,232