Premises and Equipment Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Premises and Equipment [Line Items]
Premises and equipment	$ 645,017	$ 755,824
Less accumulated depreciation	314,984	438,489
Premises and equipment, net of accumulated depreciation	330,033	317,335
Depreciation Expense	51,000	48,000	$ 40,000
Land
Premises and Equipment [Line Items]
Premises and equipment	70,575	71,348
Buildings and improvements
Premises and Equipment [Line Items]
Premises and equipment	266,733	249,139
Software
Premises and Equipment [Line Items]
Premises and equipment	150,207	188,826
Furniture and equipment
Premises and Equipment [Line Items]
Premises and equipment	129,988	223,163
Construction in progress
Premises and Equipment [Line Items]
Premises and equipment	$ 27,514	$ 23,348

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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No definition available.

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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.

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