Loans And Allowance For Credit Losses (Schedule Of Changes In The FDIC Indemnification Asset) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Loans And Allowance For Credit Losses [Abstract]
FDIC Indemnification Asset	$ 13.2	$ 26.4

Carrying amount of receivable assets originating from the indemnification agreement with the Federal Deposit Insurance Corporation (FDIC), in which the FDIC is to partially cover losses.

No definition available.

Name:	us-gaap_FDICIndemnificationAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant