Collateralized Securities Transactions (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Collateralized Securities Transactions [Abstract]
Securities reverse repurchase agreements	$ 128,011	$ 101,675
Fair value of securities received as collateral under reverse repurchase agreements	137,232	107,931
Securities sold under agreements to repurchase	127,913	101,856
Fair value of securities pledged as collateral under repurchase agreements	$ 137,232	$ 108,065

Amount, after the effects of master netting arrangements, of funds outstanding loaned in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price. Includes purchases of participations in pools of securities that are subject to a resale agreement, assets not subject to a master netting arrangement and not elected to be offset.

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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