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 | us-gaap:LiabilitiesAndStockholdersEquityAverageAmountOutstandingAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
 | us-gaap:InterestIncomeInterestEarningAssetAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
 | us-gaap:FeesAndCommissionsMortgageBankingAndServicing | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
 | us-gaap:InterestExpenseInterestBearingLiabilityAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
 | srt:InterestEarningAssetsAverageYieldAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
 | srt:InterestEarningAssetsNetYield | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
 | srt:InterestBearingLiabilitiesAverageRatePaidAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift |
 | srt:DistributionOfAssetsLiabilitiesAndStockholdersEquityTable | all | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |
 | us-gaap:AssetsAverageOutstandingAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |
 | us-gaap:LiabilitiesAndStockholdersEquityAverageAmountOutstandingAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |
 | us-gaap:InterestIncomeInterestEarningAssetAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |
 | us-gaap:FeesAndCommissionsMortgageBankingAndServicing | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |
 | us-gaap:InterestExpenseInterestBearingLiabilityAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |
 | srt:InterestEarningAssetsAverageYieldAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |
 | srt:InterestEarningAssetsNetYield | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |
 | srt:InterestBearingLiabilitiesAverageRatePaidAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable |