Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Summary of premises and equipment
Premises and equipment, gross	$ 63,129	$ 58,024
Accumulated depreciation	(39,327)	(32,848)
Total premises and equipment, net	23,802	25,176
Depreciation, Depletion and Amortization
Depreciation expense	9,000	6,900	$ 6,000
Premises
Summary of premises and equipment
Premises and equipment, gross	27,999	25,790
Furniture and equipment
Summary of premises and equipment
Premises and equipment, gross	$ 35,130	$ 32,234

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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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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.

+ References

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

+ References

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