Goodwill and Other Intangible Assets - Schedule of Mortgage Servicing Rights at Carrying Value (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 122,831	$ 137,774
Accumulated Amortization	(72,217)	(82,974)
Net Carrying Amount	50,614	54,800
Mortgage servicing rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	24,870	22,476
Valuation Allowance	(2,657)	(250)
Accumulated Amortization	(7,451)	(6,621)
Net Carrying Amount	$ 14,762	$ 15,605