Fair Value Measurements (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Collateral dependent impaired loans and other real estate owned
Information about valuation method, inputs and assumptions for nonrecurring Level 3 fair value measurements
Fair value of assets	$ 20,771
Private equity and alternative investments
Information about valuation method, inputs and assumptions for nonrecurring Level 3 fair value measurements
Fair value of assets	$ 895

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

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