Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Premises and Equipment, Gross	$ 196,061	$ 170,218
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	122,739	110,447
Property, Plant and Equipment, Net	73,322	59,771
Depreciation, Depletion and Amortization, Nonproduction	9,100	8,600	$ 8,600
Property Subject to or Available for Operating Lease, Gross	9,277	1,566
Property Subject to or Available for Operating Lease, Accumulated Depreciation	3,911	1,325
Property Subject to or Available for Operating Lease, Net	5,366	241
Operating Leases, Income Statement, Depreciation Expense on Property Subject to or Held-for-lease	1,300	26	$ 62
Land [Member]
Property, Plant and Equipment [Line Items]
Premises and Equipment, Gross	23,520	20,062
Building [Member]
Property, Plant and Equipment [Line Items]
Premises and Equipment, Gross	92,857	79,706
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Premises and Equipment, Gross	74,298	65,659
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and Equipment, Gross	$ 5,386	$ 4,791

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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