FDIC Indemnification Asset (Schedule of FDIC Indemnification Asset Components) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
FDIC indemnification asset components
Receivable (payable) related to loss claims incurred (recoveries), not yet received (paid), net	$ (633)	$ 6,899
Receivable related to estimated future claims on loans	8,675	14,933
Receivable related to estimated future claims on foreclosed real estate	397	737
FDIC indemnification asset	$ 8,439	$ 22,569	$ 48,622	$ 102,559

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