Other Borrowings (Schedule of Financial Instruments Owned and Pledged as Collateral) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Securities sold under repurchase agreements, gross	$ 62,782
Excess collateral	12,189
Securities Sold under Agreements to Repurchase
Debt Instrument [Line Items]
Securities sold under repurchase agreements	50,593	$ 17,200
Available-for-sale debt securities \| Mortgage-backed securities
Debt Instrument [Line Items]
Securities sold under repurchase agreements, gross	21,059
Held-to-maturity securities \| U.S. Government agencies
Debt Instrument [Line Items]
Securities sold under repurchase agreements, gross	$ 41,723

Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant