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Restrictions on Subsidiary Dividends, Loans or Advances (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Percentage of capital stock and surplus on secured basis	10.00%func_PercentageOfCapitalStockAndSurplusOnSecuredBasis
Parent Company [Member]
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval	9.4us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval / dei_LegalEntityAxis = us-gaap_ParentCompanyMember

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- Definition

Percentage of Capital Stock and Surplus on Secured Basis.

+ References

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- Definition

Amount of dividends that can be declared or paid without approval of regulatory agency.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(e))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph e

-Article 4

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