Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Related Party and Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant EBP, Investment, Sold, Number of Shares EBP, Investment, Sold, Number of Shares EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] EBP, Description of Plan and Accounting Change [Abstract] EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Investment Type [Axis] Investment Type [Axis] EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, Investment, Number of Shares EBP, Investment, Number of Shares EBP, Tax Status EBP, Tax Status [Text Block] EBP, Liability EBP, Liability EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution EBP, Form 5500 Caption, Net Assets EBP, Form 5500 Caption, Net Assets EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Text Block] EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Cost EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Cost EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] EBP, Change in Net Asset Available for Benefit, Increase from Contribution EBP, Change in Net Asset Available for Benefit, Increase from Contribution EBP, Form 5500 Caption, Net Income (Loss) EBP, Form 5500 Caption, Net Income (Loss) EBP, Accrued Expense EBP, Accrued Expense EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Money Market Funds Money Market Funds [Member] EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Current Period, Decrease from Deemed Distribution EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Current Period, Decrease from Deemed Distribution EBP, Payment to Participant EBP, Payment to Participant [Policy Text Block] EBP, Net Asset Available for Benefit EBP, Net Asset Available for Benefit EBP, Net Asset Available for Benefit EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] EBP, Asset EBP, Asset EBP, Reconciliation of Financial Statement to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Vesting Percentage EBP, Vesting Percentage EBP, Vesting Percentage EBP, Employer, Common Stock EBP, Employer, Common Stock [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Tax Status [Abstract] EBP, Change in Net Asset Available for Benefit, Increase (Decrease) EBP, Change in Net Asset Available for Benefit, Increase (Decrease) EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Cover [Abstract] Maximum Maximum [Member] EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Minimum Minimum [Member] EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Schedule of Asset Held for Investment [Abstract] EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment EBP, Reconciliation of Financial Statement to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Entity [Domain] Entity [Domain] EBP, Asset Held for Investment EBP, Asset Held for Investment Investment, Identifier [Axis] Investment, Identifier [Axis] EBP, Tax Determination Letter, Obtained [true false] EBP, Tax Determination Letter, Obtained [true false] EBP, Investment, Fair Value and NAV [Abstract] EBP, Basis of Accounting EBP, Basis of Accounting [Policy Text Block] EBP, Employer Contribution, Matching Percentage EBP, Employer Contribution, Matching Percentage EBP 91-1857900-003 EBP 91-1857900-003 [Member] EBP 91-1857900-003 EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] EBP, Risk and Uncertainty EBP, Risk and Uncertainty [Policy Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Allocation to Withdrawing Participant, Not yet Paid EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Allocation to Withdrawing Participant, Not yet Paid EBP, Description of Plan [Table] EBP, Description of Plan [Table] Mutual Fund Mutual Fund [Member] EBP, Asset Held for Investment, Party-in-Interest [true false] EBP, Asset Held for Investment, Party-in-Interest [true false] EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] EBP, Minimum Vested Amount for Optional Distribution EBP, Minimum Vested Amount for Optional Distribution EBP, Minimum Vested Amount for Optional Distribution EBP, Investment EBP, Investment [Policy Text Block] Amendment Flag Amendment Flag EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Common Collective Trust Common Collective Trust [Member] EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Prior Period, Increase from Deemed Distribution EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Prior Period, Increase from Deemed Distribution EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Table Text Block] EBP, Change in Net Asset Available for Benefit, Decrease EBP, Change in Net Asset Available for Benefit, Decrease EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value EBP, Plan Termination EBP, Plan Termination [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Abstract] EBP, Investment Sold, Excluding Plan Interest in Master Trust, Selling Price EBP, Investment Sold, Excluding Plan Interest in Master Trust, Selling Price EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Description of Plan EBP, Description of Plan [Text Block] EBP, Tax Determination Letter, Date EBP, Tax Determination Letter, Date EBP, Summary of Accounting Policy EBP, Summary of Accounting Policy [Text Block] Document Period End Date Document Period End Date EBP, Note Receivable from Participant EBP, Note Receivable from Participant [Policy Text Block] EBP, Change in Net Asset Available for Benefit, Increase EBP, Change in Net Asset Available for Benefit, Increase EBP, Involuntary IRA Transfer, Maximum Amount EBP, Involuntary IRA Transfer, Maximum Amount EBP, Involuntary IRA Transfer, Maximum Amount EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Entity Central Index Key Entity Central Index Key EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Legal Entity [Axis] Legal Entity [Axis] Entity Tax Identification Number Entity Tax Identification Number EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] EBP, Plan Number EBP, Plan Number EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Investment, Issuer Name [Extensible Enumeration] EBP, Investment, Issuer Name [Extensible Enumeration] Document Type Document Type Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] EBP, Form 5500 Caption, Net Assets [Abstract] EBP, Form 5500 Caption, Net Assets [Abstract] EBP, Use of Estimate EBP, Use of Estimate [Policy Text Block] EBP, Form 5500 Caption, Net Income (Loss) [Abstract] EBP, Form 5500 Caption, Net Income (Loss) [Abstract] EBP, Investment, Purchased, Number of Shares EBP, Investment, Purchased, Number of Shares Statistical Measurement [Axis] Statistical Measurement [Axis] EBP, Note Receivable from Participant EBP, Note Receivable from Participant Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] EBP, Schedule of Asset Held for Investment EBP, Schedule of Asset Held for Investment [Table Text Block] EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment EBP, Noninterest-Bearing Cash EBP, Noninterest-Bearing Cash EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] EBP, Asset Held for Investment, Participant Loan, Maturity Date EBP, Asset Held for Investment, Participant Loan, Maturity Date Investments [Domain] Investments [Domain] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Entity Registrant Name Entity Registrant Name Investments measured at Fair Value Excluding Common/Collective Trust Funds Investments measured at Fair Value Excluding Common/Collective Trust Funds [Member] Investments measured at Fair Value Excluding Common/Collective Trust Funds EBP, Tax Status [Table] EBP, Tax Status [Table] EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage American Funds EuroPacific Growth Fund [Member] American Funds EuroPacific Growth Fund EBP, Participant-Directed [Member] American Funds New Perspective Fund [Member] American Funds New Perspective Fund Fidelity Advisor Total Bond Fund Class Z [Member] Fidelity Advisor Total Bond Fund Class Z Fidelity 500 Findex Institutional Prem [Member] Fidelity 500 Findex Institutional Prem Fidelity Inflation-Protected Bond Index Fund [Member] Fidelity Inflation-Protected Bond Index Fund JPMorgan Large Cap Growth Fund Class R6 [Member] JPMorgan Large Cap Growth Fund Class R6 PIMCO RAE US Small Fund Institutional Class [Member] PIMCO RAE US Small Fund Institutional Class T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund I Class [Member] T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund I Class Vanguard Emerging Markets Stock Index Fund Admiral Shares [Member] Vanguard Emerging Markets Stock Index Fund Admiral Shares Vanguard Equity-Income Fund Admiral Shares [Member] Vanguard Equity-Income Fund Admiral Shares Vanguard Extended Market Index Fund Institutional Shares [Member] Vanguard Extended Market Index Fund Institutional Shares Vanguard Real Estate Index Fund Admiral Shares [Member] Vanguard Real Estate Index Fund Admiral Shares Vanguard Target Retirement 2020 Fund [Member] Vanguard Target Retirement 2020 Fund Vanguard Target Retirement 2025 Fund [Member] Vanguard Target Retirement 2025 Fund Vanguard Target Retirement 2030 Fund [Member] Vanguard Target Retirement 2030 Fund Vanguard Target Retirement 2035 Fund [Member] Vanguard Target Retirement 2035 Fund Vanguard Target Retirement 2040 Fund [Member] Vanguard Target Retirement 2040 Fund Vanguard Target Retirement 2045 Fund [Member] Vanguard Target Retirement 2045 Fund Vanguard Target Retirement 2050 Fund [Member] Vanguard Target Retirement 2050 Fund Vanguard Target Retirement 2055 Fund [Member] Vanguard Target Retirement 2055 Fund Vanguard Target Retirement 2060 Fund [Member] Vanguard Target Retirement 2060 Fund Vanguard Target Retirement 2065 Fund [Member] Vanguard Target Retirement 2065 Fund Vanguard Target Retirement 2070 Fund [Member] Vanguard Target Retirement 2070 Fund Vanguard Target Retirement Income Fund [Member] Vanguard Target Retirement Income Fund Vanguard Total Bond Market Index Fund Institutional Shares [Member] Vanguard Total Bond Market Index Fund Institutional Shares Vanguard Total International Stock Index Fund Admiral Shares [Member] Vanguard Total International Stock Index Fund Admiral Shares Galliard Stable Value C [Member] Galliard Stable Value C Heritage Financial Corporation common stock [Member] Heritage Financial Corporation common stock Schwab Money Market Account [Member] Schwab Money Market Account Vanguard Treasury Money Market Investor [Member] Vanguard Treasury Money Market Investor