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For banks, include currently required allocated transfer risk reserves. Include carryover of or adjustments to the allowance for loan losses in connection with business combinations determined to be appropriate.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 8 -Subparagraph a(ii) -Subsection I Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 8, 9 falsefalseBalance at beginning of 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http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 falsefalseCharge-offs6false0us-gaap_AllowanceForLoanAndLeaseLossesRecoveriesOfBadDebtsus-gaaptruedebitdurationNo definition 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SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 truefalseRecoveries7false0hcbk_AllowanceForLoanLossesNetChargesOffshcbkfalsedebitdurationAllowance For Loan Losses Net Charges Offs.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5falsefalsefalse00falsefalsefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsefalsefalse8falsefalsefalse00falsefalsefalsefalsefalse9truefalsefalse-98500000-98500falsefalsefalsefalsefalse10truefalsefalse-47223000-47223falsefalsefalsefalsefalse11truefalsefalse-4444000-4444falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAllowance For Loan Losses Net Charges Offs.No authoritative reference available.truefalseNet charge-offs8false0us-gaap_ProvisionForLoanLeaseAndOtherLossesus-gaaptruedebitdurationNo definition available.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:monetaryItemTypemonetaryThe sum of the periodic provision charged to earnings, based on an assessment of uncollectibility from the counterparty on account of loan, lease or other credit losses, to reduce these accounts to the amount that approximates their net realizable value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Chapter 5 -Paragraph 168, 169, 170 -IssueDate 2006-05-01 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 truefalseProvision for loan losses9false0us-gaap_LoansAndLeasesReceivableAllowanceus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsetruefalseperiodendlabel1truefalsefalse236574000236574falsetruefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalsefalse00falsefalsefalsefalsefalse5truefalsefalse140074000140074falsetruefalsefalsefalse6falsefalsefalse00falsefalsefalsefalsefalse7falsefalsefalse00falsefalsefalsefalsefalse8falsefalsefalse00falsefalsefalsefalsefalse9truefalsefalse236574000236574falsetruefalsefalsefalse10truefalsefalse140074000140074falsetruefalsefalsefalse11truefalsefalse4979700049797falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe allowance for loan and lease losses represents the reserve to cover probable credit losses related to specifically identified loans and leases, as well as probable credit losses inherent in the remainder of the loan portfolio as of the balance sheet date. 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