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Nature of Operations (Details) (USD $)
 0 Months Ended
Apr. 08, 2013
Stock issued during period, shares, new issues (in shares) 14,289,429us-gaap_StockIssuedDuringPeriodSharesNewIssues
Share price $ 10.00us-gaap_SharePrice
Proceeds from public offering, gross $ 142,900,000chfn_ProceedsFromPublicOfferingGross
Conversion of stock, shares issued 1.2471us-gaap_ConversionOfStockSharesIssued1
Charter Federal  
Conversion of stock, shares issued 1.2471us-gaap_ConversionOfStockSharesIssued1
/ dei_LegalEntityAxis
= chfn_CharterFederalMember
First Charter MHC  
Equity method investment, ownership percentage 100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= chfn_FirstCharterMHCMember
Net asset position assumed by Charter Financial $ 229,564chfn_NetAssetPositionAssumed
/ dei_LegalEntityAxis
= chfn_FirstCharterMHCMember
Public  
Equity method investment, ownership percentage 100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ dei_LegalEntityAxis
= chfn_PublicMember