Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Indefinite-lived trade name intangible	$ 7,040	$ 7,040
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	49,710	49,710
Accumulated Amortization	(28,307)	(24,532)
Net Carrying Amount	21,403	25,178
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	41,745	41,745
Accumulated Amortization	(23,932)	(21,032)
Net Carrying Amount	17,813	20,713
Customer relationship intangible
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,265	5,265
Accumulated Amortization	(2,000)	(1,195)
Net Carrying Amount	3,265	4,070
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,700	2,700
Accumulated Amortization	(2,375)	(2,305)
Net Carrying Amount	$ 325	$ 395