1001 - Document - Cover Page link:presentationLink link:definitionLink link:calculationLink 1002 - Statement - Consolidated Balance Sheets link:presentationLink link:definitionLink link:calculationLink 1003 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:definitionLink link:calculationLink 1004 - Statement - Consolidated Statements of Income link:presentationLink link:definitionLink link:calculationLink 1005 - Statement - Consolidated Statements of Comprehensive Income link:presentationLink link:definitionLink link:calculationLink 1006 - Statement - Consolidated Statements of Changes in Stockholders' Equity link:presentationLink link:definitionLink link:calculationLink 1007 - Statement - Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) link:presentationLink link:definitionLink link:calculationLink 1008 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:definitionLink link:calculationLink 1009 - Disclosure - Summary of Significant AccountingPolicies link:presentationLink link:definitionLink link:calculationLink 1010 - Disclosure - Cash and Due from Banks link:presentationLink link:definitionLink link:calculationLink 1011 - Disclosure - Securities Available-for-Sale link:presentationLink link:definitionLink link:calculationLink 1012 - Disclosure - Investment Securities Held-to-Maturity link:presentationLink link:definitionLink link:calculationLink 1013 - Disclosure - Loans link:presentationLink link:definitionLink link:calculationLink 1014 - Disclosure - Allowance for Loan Losses link:presentationLink link:definitionLink link:calculationLink 1015 - Disclosure - Bank Premises and Equipment link:presentationLink link:definitionLink link:calculationLink 1016 - Disclosure - Goodwill and Identifiable Intangible Assets link:presentationLink link:definitionLink link:calculationLink 1017 - Disclosure - Fair Value Measurements link:presentationLink link:definitionLink link:calculationLink 1018 - Disclosure - Deposits link:presentationLink link:definitionLink link:calculationLink 1019 - Disclosure - Securities Sold Under Agreements to Repurchase link:presentationLink link:definitionLink link:calculationLink 1020 - Disclosure - Other Borrowed Funds and Subordinated Debentures link:presentationLink link:definitionLink link:calculationLink 1021 - Disclosure - Reclassifications Out of Accumulated Other Comprehensive Income link:presentationLink link:definitionLink link:calculationLink 1022 - Disclosure - Earnings Per Share ("EPS") link:presentationLink link:definitionLink link:calculationLink 1023 - Disclosure - Stockholders' Equity link:presentationLink link:definitionLink link:calculationLink 1024 - Disclosure - Income Taxes link:presentationLink link:definitionLink link:calculationLink 1025 - Disclosure - Employee Benefits link:presentationLink link:definitionLink link:calculationLink 1026 - Disclosure - Commitments and Contingencies link:presentationLink link:definitionLink link:calculationLink 1027 - Disclosure - Financial Instruments with Off-Balance-Sheet Risk link:presentationLink link:definitionLink link:calculationLink 1028 - Disclosure - Other Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1029 - Disclosure - Fair Values of Financial Instruments link:presentationLink link:definitionLink link:calculationLink 1030 - Disclosure - Revenue from Contracts with Customers link:presentationLink link:definitionLink link:calculationLink 1031 - Disclosure - Leases link:presentationLink link:definitionLink link:calculationLink 1032 - Disclosure - Quarterly Results of Operations (Unaudited) link:presentationLink link:definitionLink link:calculationLink 1033 - Disclosure - Parent Company Financial Statements link:presentationLink link:definitionLink link:calculationLink 1034 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:definitionLink link:calculationLink 1035 - Disclosure - Securities Available-for-Sale (Tables) link:presentationLink link:definitionLink link:calculationLink 1036 - Disclosure - Investment Securities Held-to-Maturity (Tables) link:presentationLink link:definitionLink link:calculationLink 1037 - Disclosure - Loans (Tables) link:presentationLink link:definitionLink link:calculationLink 1038 - Disclosure - Allowance for Loan Losses (Tables) link:presentationLink link:definitionLink link:calculationLink 1039 - Disclosure - Bank Premises and Equipment (Tables) link:presentationLink link:definitionLink link:calculationLink 1040 - Disclosure - Goodwill and Identifiable Intangible Assets (Tables) link:presentationLink link:definitionLink link:calculationLink 1041 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:definitionLink link:calculationLink 1042 - Disclosure - Deposits (Tables) link:presentationLink link:definitionLink link:calculationLink 1043 - Disclosure - Securities Sold Under Agreements to Repurchase (Tables) link:presentationLink link:definitionLink link:calculationLink 1044 - Disclosure - Other Borrowed Funds and Subordinated Debentures (Tables) link:presentationLink link:definitionLink link:calculationLink 1045 - Disclosure - Reclassifications Out of Accumulated Other Comprehensive Income (Tables) link:presentationLink link:definitionLink link:calculationLink 1046 - Disclosure - Earnings per share ("EPS") (Tables) link:presentationLink link:definitionLink link:calculationLink 1047 - Disclosure - Stockholders' Equity (Tables) link:presentationLink link:definitionLink link:calculationLink 1048 - Disclosure - Income Taxes (Tables) link:presentationLink link:definitionLink link:calculationLink 1049 - Disclosure - Employee Benefits (Tables) link:presentationLink link:definitionLink link:calculationLink 1050 - Disclosure - Financial Instruments with Off-Balance-Sheet Risk (Tables) link:presentationLink link:definitionLink link:calculationLink 1051 - Disclosure - Other Operating Expenses (Tables) link:presentationLink link:definitionLink link:calculationLink 1052 - Disclosure - Fair Values of Financial Instruments (Tables) link:presentationLink link:definitionLink link:calculationLink 1053 - Disclosure - Revenue from Contracts with Customers (Tables) link:presentationLink link:definitionLink link:calculationLink 1054 - Disclosure - Leases (Tables) link:presentationLink link:definitionLink link:calculationLink 1055 - Disclosure - Quarterly Results of Operations (Unaudited) (Tables) link:presentationLink link:definitionLink link:calculationLink 1056 - Disclosure - Parent Company Financial Statements (Tables) link:presentationLink link:definitionLink link:calculationLink 1057 - Disclosure - Basis of Financial Statement Presentation - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1058 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1059 - Disclosure - Cash and Due from Banks - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1060 - Disclosure - Recent Accounting Developments - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1061 - Disclosure - Securities Available-for-Sale - Summary of Securities Available-for-Sale (Detail) link:presentationLink link:definitionLink link:calculationLink 1062 - Disclosure - Securities Available-for-Sale - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1063 - Disclosure - Securities Available-for-Sale - Estimated Maturity Distribution of Securities Available-for-Sale (Detail) link:presentationLink link:definitionLink link:calculationLink 1064 - Disclosure - Securities Available-for-Sale - Continuous Unrealized Loss Position for 12 Months or Less and 12 Months and Longer (Detail) link:presentationLink link:definitionLink link:calculationLink 1065 - Disclosure - Investment Securities Held-to-Maturity - Summary of Held-to-Maturity Securities (Detail) link:presentationLink link:definitionLink link:calculationLink 1066 - Disclosure - Investment Securities Held-to-Maturity - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1067 - Disclosure - Investment Securities Held-to-Maturity - Company's Securities Held-to-Maturity (Detail) link:presentationLink link:definitionLink link:calculationLink 1068 - Disclosure - Investment Securities Held-to-Maturity - Unrealized Market Loss of Securities (Detail) link:presentationLink link:definitionLink link:calculationLink 1069 - Disclosure - Loans - Summary of Composition of Loan Portfolio (Detail) link:presentationLink link:definitionLink link:calculationLink 1070 - Disclosure - Loans - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1071 - Disclosure - Loans - Composition of Nonaccrual Loans and Impaired Loans (Detail) link:presentationLink link:definitionLink link:calculationLink 1072 - Disclosure - Loans - Aggregate Amount of Loans to Directors and Officers of Company and Their Associates (Detail) link:presentationLink link:definitionLink link:calculationLink 1073 - Disclosure - Allowance for Loan Losses - Analysis of Allowance for Loan Losses (Detail) link:presentationLink link:definitionLink link:calculationLink 1074 - Disclosure - Allowance for Loan Losses - Summary of Allowance for Loan Losses (Detail) link:presentationLink link:definitionLink link:calculationLink 1075 - Disclosure - Allowance for Loan Losses - Loans by Risk Rating (Detail) link:presentationLink link:definitionLink link:calculationLink 1076 - Disclosure - Allowance for Loan Losses - Loans by Credit Rating (Detail) link:presentationLink link:definitionLink link:calculationLink 1077 - Disclosure - Allowance for Loan Losses - Aging of Past Due Loans (Detail) link:presentationLink link:definitionLink link:calculationLink 1078 - Disclosure - Allowance for Loan Losses - Information Pertaining to Impaired Loans (Detail) link:presentationLink link:definitionLink link:calculationLink 1079 - Disclosure - Allowance for Loan Losses - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1080 - Disclosure - Bank Premises and Equipment - Schedule of Bank Premises and Equipment (Detail) link:presentationLink link:definitionLink link:calculationLink 1081 - Disclosure - Bank Premises and Equipment - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1082 - Disclosure - Goodwill and Identifiable Intangible Assets - Carrying Amount of Goodwill and Intangibles (Detail) link:presentationLink link:definitionLink link:calculationLink 1083 - Disclosure - Fair Value Measurements - Financial Instruments Measured at Fair Value on a Recurring and Non-recurring Basis (Detail) link:presentationLink link:definitionLink link:calculationLink 1084 - Disclosure - Fair Value Measurements - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1085 - Disclosure - Fair Value Measurements - Assets Measured at Fair Value (Detail) link:presentationLink link:definitionLink link:calculationLink 1086 - Disclosure - Fair Value Measurements - Changes in Level 3 Securities (Detail) link:presentationLink link:definitionLink link:calculationLink 1087 - Disclosure - Fair Value Measurements - Assets Measured at Fair Value (Parenthetical) (Detail) link:presentationLink link:definitionLink link:calculationLink 1088 - Disclosure - Deposits - Summary of Remaining Maturities or Re-pricing of Time Deposits (Detail) link:presentationLink link:definitionLink link:calculationLink 1089 - Disclosure - Deposits - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1090 - Disclosure - Securities Sold under Agreements to Repurchase - Summary of Securities Sold Under Agreements to Repurchase (Detail) link:presentationLink link:definitionLink link:calculationLink 1091 - Disclosure - Securities Sold under Agreements to Repurchase - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1092 - Disclosure - Other Borrowed Funds and Subordinated Debentures - Summary of Other Borrowed Funds and Subordinated Debentures (Detail) link:presentationLink link:definitionLink link:calculationLink 1093 - Disclosure - Other Borrowed Funds and Subordinated Debentures - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1094 - Disclosure - Other Borrowed Funds and Subordinated Debentures - Schedule of the Maturity Distribution of FHLBB Advances with the Weighted Average Interest Rates (Detail) link:presentationLink link:definitionLink link:calculationLink 1095 - Disclosure - Reclassifications Out of Accumulated Other Comprehensive Income - Reclassifications Out of Accumulated Other Comprehensive Income (Detail) link:presentationLink link:definitionLink link:calculationLink 1096 - Disclosure - Earnings Per Share ("EPS") - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1097 - Disclosure - Earnings Per Share ("EPS") - Reconciliation of Basic EPS and Diluted EPS (Detail) link:presentationLink link:definitionLink link:calculationLink 1098 - Disclosure - Stockholders' Equity - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1099 - Disclosure - Stockholders' Equity - Summary of the Bank's Actual Capital Amounts and Ratios (Detail) link:presentationLink link:definitionLink link:calculationLink 1100 - Disclosure - Stockholders' Equity - Summary of the Company's Actual Capital Amounts and Ratios (Detail) link:presentationLink link:definitionLink link:calculationLink 1101 - Disclosure - Income Taxes - Summary of Current and Deferred Components of Income Tax Expense (Benefit) (Detail) link:presentationLink link:definitionLink link:calculationLink 1102 - Disclosure - Income Taxes - Income Tax Accounts Included in Other Assets (Detail) link:presentationLink link:definitionLink link:calculationLink 1103 - Disclosure - Income Taxes - Summary of Differences between Income Tax Expense (Benefit) at the Statutory Federal Income Tax Rate and Total Income Tax Expense (Detail) link:presentationLink link:definitionLink link:calculationLink 1104 - Disclosure - Income Taxes - Gross Deferred Income Tax Assets and Gross Deferred Income Tax Liabilities (Detail) link:presentationLink link:definitionLink link:calculationLink 1105 - Disclosure - Income Taxes - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1106 - Disclosure - Employee Benefits - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1107 - Disclosure - Employee Benefits - Fair Value of Plan Assets and Major Categories (Detail) link:presentationLink link:definitionLink link:calculationLink 1108 - Disclosure - Employee Benefits - Schedule of Investments Measured Using Net Asset Value Per Share Practical Expedient (Detail) link:presentationLink link:definitionLink link:calculationLink 1109 - Disclosure - Employee Benefits - Components of Net Periodic Benefit Cost (Detail) link:presentationLink link:definitionLink link:calculationLink 1110 - Disclosure - Employee Benefits - Summary of Defined Pension Plan and Supplemental Insurance Retirement Plan (Detail) link:presentationLink link:definitionLink link:calculationLink 1111 - Disclosure - Employee Benefits - Summary of Accumulated Other Comprehensive Loss Expected to be Recognized (Detail) link:presentationLink link:definitionLink link:calculationLink 1112 - Disclosure - Financial Instruments with Off-Balance-Sheet Risk - Summary of Financial Instruments with Off-Balance-Sheet Risk (Detail) link:presentationLink link:definitionLink link:calculationLink 1113 - Disclosure - Other Operating Expenses - Summary of Other Operating Expenses (Detail) link:presentationLink link:definitionLink link:calculationLink 1114 - Disclosure - Fair Values of Financial Instruments - Carrying Amount and Fair Value of Company's Financial Instruments (Detail) link:presentationLink link:definitionLink link:calculationLink 1115 - Disclosure - Revenue from Contracts with Customers - Schedule of Revenue from Contracts (Detail) link:presentationLink link:definitionLink link:calculationLink 1116 - Disclosure - Revenue from Contracts with Customers - Information about Receivables with Customers (Detail) link:presentationLink link:definitionLink link:calculationLink 1117 - Disclosure - Leases - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1118 - Disclosure - Leases - Components of lease expense (Detail) link:presentationLink link:definitionLink link:calculationLink 1119 - Disclosure - Leases - Supplemental cash flow information related to leases (Detail) link:presentationLink link:definitionLink link:calculationLink 1120 - Disclosure - Leases - Supplemental balance sheet information related to leases (Detail) link:presentationLink link:definitionLink link:calculationLink 1121 - Disclosure - Leases - Summary of Future Payments of Lease Liabilities (Detail) link:presentationLink link:definitionLink link:calculationLink 1122 - Disclosure - Quarterly Results of Operations - Quarterly Results of Operations (Detail) link:presentationLink link:definitionLink link:calculationLink 1123 - Disclosure - Parent Company Financial Statements - Balance Sheets of Parent Company (Detail) link:presentationLink link:definitionLink link:calculationLink 1124 - Disclosure - Parent Company Financial Statements - Statements of Income of Parent Company (Detail) link:presentationLink link:definitionLink link:calculationLink 1125 - Disclosure - Parent Company Financial Statements - Statements of Cash Flows of Parent Company (Detail) link:presentationLink link:definitionLink link:calculationLink