1001 - Document - Cover link:presentationLink link:definitionLink link:calculationLink 1002 - Statement - Statements of Net Assets Available for Benefits link:presentationLink link:definitionLink link:calculationLink 1003 - Statement - Statements of Changes in Net Assets Available for Benefits link:presentationLink link:definitionLink link:calculationLink 1004 - Disclosure - Description of the Plan link:presentationLink link:definitionLink link:calculationLink 1005 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:definitionLink link:calculationLink 1006 - Disclosure - Fair Value Measurements link:presentationLink link:definitionLink link:calculationLink 1007 - Disclosure - Related-Party Transactions link:presentationLink link:definitionLink link:calculationLink 1008 - Disclosure - Federal Income Tax Status link:presentationLink link:definitionLink link:calculationLink 1009 - Disclosure - Plan Termination link:presentationLink link:definitionLink link:calculationLink 1010 - Disclosure - Risks and Uncertainties link:presentationLink link:definitionLink link:calculationLink 1011 - Disclosure - Reconciliation of Financial Statements to Form 5500 link:presentationLink link:definitionLink link:calculationLink 1012 - Disclosure - Late Remittances link:presentationLink link:definitionLink link:calculationLink 1013 - Disclosure - Form 5500, Schedule H, Part IV, Line 4(a) - Schedule of Delinquent Participant Contributions link:presentationLink link:definitionLink link:calculationLink 1014 - Disclosure - Schedule H, Part IV, Line 4(i) - Schedule of Assets (Held at End of Year) link:presentationLink link:definitionLink link:calculationLink 1015 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:definitionLink link:calculationLink 1016 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:definitionLink link:calculationLink 1017 - Disclosure - Reconciliation of Financial Statements to Form 5500 (Tables) link:presentationLink link:definitionLink link:calculationLink 1018 - Disclosure - Description of the Plan - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1019 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1020 - Disclosure - Fair Value Measurements - Summary of the Plan's Investments Measured at Fair Value on a Recurring Basis (Detail) link:presentationLink link:definitionLink link:calculationLink 1021 - Disclosure - Fair Value Measurements - Summary of the Plan's Investment that has Fair Value Estimated using NAV (Detail) link:presentationLink link:definitionLink link:calculationLink 1022 - Disclosure - Fair Value Measurements - Summary of the Plan's Investment that has Fair Value Estimated using NAV (Parenthetical) (Detail) link:presentationLink link:definitionLink link:calculationLink 1023 - Disclosure - Fair Value Measurements - Additional information (Detail) link:presentationLink link:definitionLink link:calculationLink 1024 - Disclosure - Related-Party Transactions - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1025 - Disclosure - Federal Income Tax Status - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1026 - Disclosure - Plan Termination - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1027 - Disclosure - Risks and Uncertainties - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1028 - Disclosure - Reconciliation of Financial Statements to Form 5500 - Summary of Reconciliation of Net Assets Available (Detail) link:presentationLink link:definitionLink link:calculationLink 1029 - Disclosure - Reconciliation of Financial Statements to Form 5500 - Summary of Reconciliation of Increase In Net Assets (Detail) link:presentationLink link:definitionLink link:calculationLink 1030 - Disclosure - Late Remittances - Additional Information (Detail) link:presentationLink link:definitionLink link:calculationLink 1031 - Disclosure - Form 5500, Schedule H, Part IV, Line 4(a) - Schedule of Delinquent Participant Contributions (Details) link:presentationLink link:definitionLink link:calculationLink 1032 - Disclosure - Schedule H, Part IV, Line 4(i) - Schedule of Assets (Held at End of Year) (Details) link:presentationLink link:definitionLink link:calculationLink 1033 - Disclosure - Description of the Plan - Additional Information (Detail) Alternate link:presentationLink link:definitionLink link:calculationLink 1034 - Disclosure - Schedule H, Part IV, Line 4(i) - Schedule of Assets (Held at End of Year) (Details) Alternate link:presentationLink link:definitionLink link:calculationLink Cover [Abstract] Document Information [Table] Legal Entity [Axis] Entity [Domain] EBP 001 [Member] Document Information [Line Items] Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Asset [Abstract] Assets EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Investments - Participant-Directed - at fair value EBP, Investment, excluding plan interest in master trust, fair value Fair Value EBP, Employer Contribution, Receivable Employer Contributions Receivable EBP, Note Receivable from Participant Notes Receivable from Participants EBP, Net Asset Available for Benefit Net Assets Available for Benefits Net Assets Available for Benefits, beginning of year Net Assets Available for Benefits, end of year Net assets available for benefits per the financial statements EBP, Statement of Change in Net Asset Available for Benefit [Abstract] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Change in Net Asset Available for Benefit, Increase [Abstract] Additions: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investment Income : EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment Interest and dividend income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Net Investment Income EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Interest Income on Notes Receivable from Participants EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Participant contributions EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash Employer contributions Employee Benefit Plan Change In Net Asset Available For Benefit Increase For Employer Contribution Other Other employer contributions Employee benefit plan change in net asset available for benefit increase for employer contribution other Employee benefit plan change in net asset available for benefit increase for employer contribution other. EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Rollover contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution Total Contributions EBP, Change in Net Asset Available for Benefit, Increase Total Additions EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Deductions: EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Benefits paid to participants EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Administrative expenses Employee Benefit Plan Change In Net Asset Available For Benefit Decrease For Other Expense Other expenses Employee Benefit Plan Change In Net Asset Available For Benefit Decrease For Other Expense EBP, Change in Net Asset Available for Benefit, Decrease Total Deductions EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Increase in Net Assets Increase in net assets before Plan transfers per the financial statements EBP, Description of Plan and Accounting Change [Abstract] EBP, Description of Plan [Table] EBP, Description of Plan [Line Items] EBP, Description of Plan [Text Block] Description of the Plan EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] EBP, Accounting Policy [Table] EBP, Accounting Policy [Line Items] EBP, Summary of Accounting Policy [Text Block] Summary of Significant Accounting Policies EBP, Investment, Fair Value and NAV [Abstract] EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Text Block] Fair Value Measurements EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Text Block] Related-Party Transactions EBP, Tax Status [Abstract] EBP, Tax Status [Table] EBP, Tax Status [Line Items] EBP, Tax Status [Text Block] Federal Income Tax Status EBP, Plan Termination [Text Block] Plan Termination EBP, Risk and Uncertainty [Abstract] EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Text Block] Risks and Uncertainties EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Reconciliation of Financial Statements to Form 5500 EBP, Schedule of Delinquent Participant Contribution [Abstract] EBP, Schedule of Delinquent Participant Contribution [Table] EBP, Schedule of Delinquent Participant Contribution [Line Items] Employee Benefit Plan Late Remittances [Text Block] Late Remittances Employee benefit plan late remittances. Employee Benefit Plan Delinquent Participant Contribution [Text Block] Form 5500, Schedule H, Part IV, Line 4(a) - Schedule of Delinquent Participant Contributions Employee benefit plan delinquent participant contribution. EBP, Schedule of Asset Held for Investment [Abstract] EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Line Items] Employee Benefit Plan Schedule Of Asset Held For Investments [Text Block] Schedule H, Part IV, Line 4(i) - Schedule of Assets (Held at End of Year) Employee benefit plan schedule of asset held for investments. EBP, Basis of Accounting [Policy Text Block] Basis of Accounting EBP, Use of Estimate [Policy Text Block] Use of Estimates EBP, Investment [Policy Text Block] Investment Choices, Valuation and Income Recognition EBP, Expense [Policy Text Block] Investment Management Fees and Operating Expenses EBP, Note Receivable from Participant [Policy Text Block] Notes Receivable from Participants EBP, Contribution [Policy Text Block] Contribution Receivable EBP, Payment to Participant [Policy Text Block] Payment of Benefits Employee Benefit Plan Administration Policy Text Block [Policy Text Block] Administrative Expenses Employee benefit plan administration policy text block. EBP, Excess Contribution Payable [Policy Text Block] Other Employer Contributions EBP, Subsequent Event [Policy Text Block] Subsequent Events EBP, Investment, Fair Value and NAV [Table Text Block] Summary of the Plan's Investments Measured at Fair Value Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Measured at Net Asset Value Per Share [Member] EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] Summary of Reconciliation of Net Assets Available Employee Benefit Plan Reconciliation of Increase In Net Assets As Per Form 5500 [Table Text Block] Summary of Reconciliation of Increase In Net Assets Employee benefit plan reconciliation of increase in net assets as per form 5500. EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Participant contribution, pretax, maximum annual compensation to total compensation, percentage Employee Benefit Plan Additional Contribution Participant Description Employee benefit plan additional contribution participant description Employee benefit plan additional contribution participant description. EBP, Employer Contribution, Matching Percentage EBP, Employer contribution, matching percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Employer contribution, participant compensation matched, percentage EBP, Forfeited Nonvested Account EBP, Forfeited nonvested account EBP, Forfeited Nonvested Account, Decrease from Administrative Expense EBP, Forfeited nonvested account, decrease from administrative expense Employee Benefit Plan Termination Participant Account Vesting Percentage Employee benefit plan termination participant account vesting percentage Employee benefit plan termination participant account vesting percentage. EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount EBP, Note receivable from participant, account, minimum borrowing, amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount EBP, Note receivable from participant, account, maximum borrowing, amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, Note receivable from participant, account, maximum borrowing, to total account, percentage Employee Benefit Plan Loan Repayment Period Maximum Employee benefit plan loan repayment period maximum Employee benefit plan loan repayment period maximum. Investment, Identifier [Axis] Investment Type [Axis] Investments [Domain] Common Stock [Member] Mutual Fund [Member] Common Collective Trust [Member] EBP, Self-Directed Brokerage Account [Member] Total Investments At Fair Value [Member] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] EBP, Fair Value, Investment, NAV, Unfunded Commitment Unfunded Commitments EBP Fair Value Investment NAV Redemptions Frequency Redemption Frequency Ebp fair value investment NAV redemptions frequency. Stable Value Fund [Member] EBP, Fair Value, Investment, NAV, Investee Investment Strategy, Description EBP, Fair value, investment, nav, investee investment strategy, description Fair Value, Inputs, Level 3 [Member] Employee Benefit Plan Fees Paid for Services Provided Employee benefit plan fees paid for services provided Employee benefit plan fees paid for services provided. Employee Benefit Plan Revenue Credits Received Employee benefit plan revenue credits received Employee benefit plan revenue credits received. Employee Benefit Plan Revenue Credits Utilized Employee benefit plan revenue credits utilized Employee benefit plan revenue credits utilized. Employee Benefit Plan Revenue Credits Ending Balance Employee benefit plan revenue credits ending balance Employee benefit plan revenue credits ending balance. EBP, Investment, Number of Shares EBP, Investment, number of shares 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, Related Party and Party-in-Interest [Axis] EBP, Related Party and Party-in-Interest [Domain] Fidelity Management Trust Company And Its Affiliates [Member] Fidelity Management Trust Company And Its Affiliates Plan Sponsor [Member] Plan Sponsor EBP, Tax Determination Letter, Date EBP, Tax determination letter, date EBP, Risk and Uncertainty, Concentration of Investment at Fair Value to Total Investments, Percentage EBP, Risk and uncertainty, concentration of investment at fair value to total investments, percentage Other Security Investments [Member] EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Contract Value to Current Value Adjustment Adjustment from fair value to current value for the stable-value common collective trust fund EBP, Form 5500 Caption, Net Assets Net Assets per the Form 5500 Employee Benefit Plan Change in adjustment from fair value to current value Beginning of year End of year Employee Benefit Plan change in adjustment from fair value to current value. EBP, Form 5500 Caption, Net Income (Loss) Net Income per the Form 5500 EBP, Schedule of Delinquent Participant Contribution, Transferred Late to Plan EBP, Schedule of delinquent participant contribution, transferred late to plan EBP, Schedule of Delinquent Participant Contribution, Not Corrected EBP, Schedule of Delinquent Participant Contribution, Corrected Outside VFCP EBP, Schedule of Delinquent Participant Contribution, Pending Correction in VFCP EBP, Schedule of Delinquent Participant Contribution, Corrected Entity Tax Identification Number EBP, Plan Number EBP, Schedule of Delinquent Participant Contribution, Late Repayment Included [true false] EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] EBP, Investment, Issuer Name [Extensible Enumeration] EBP, Investment, Current Value, Type [Extensible Enumeration] EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value EBP, Asset Held for Investment, Party-in-Interest [true false] EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution EBP, Asset Held for Investment EBP, Asset Held for Investment, Participant Loan, Interest Rate Common Collective Trust Fund [Member] EBP, Participant-Directed and Nonparticipant-Directed Status [Axis] EBP, Participant-Directed and Nonparticipant-Directed Status [Domain] Investment, Issuer Name [Axis] Investment, Issuer Name [Domain] Statistical Measurement [Axis] Statistical Measurement [Domain] Maximum [Member] Minimum [Member] EBP, Participant-Directed [Member] DWS RREEF Real Assets Fund Institutional Shares [Member] FIAM U.S. Bond Index CIT [Member] Fidelity BrokerageLink [Member] Fidelity Contrafund Commingled Pool [Member] Fidelity Government Money Market Fund Class K6 [Member] Fidelity Government Money Market Fund [Member] Fidelity Growth Company Commingled Pool [Member] Fidelity International Discovery Commingled Pool [Member] Fidelity Total Bond Fund Class K6 [Member] FID FRDM Blend Target Date 2010 Commingled Pool Class R [Member]