Dividends, per share
Common Stock, Dividends, Per Share, Cash Paid
Summary of Significant Accounting Policies [Text Block]
Significant Accounting Policies [Text Block]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Postretirement benefit cost
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits
Self-insurance reserves
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Self Insurance
Investments [Policy Text Block]
Investment, Policy [Policy Text Block]
Thereafter
Lessee, Operating Lease, Liability, to be Paid, after Year Five
Award Timing Predetermined
Award Timing Predetermined [Flag]
Weighted Average Remaining Lease Term/Discount Rate [Abstract]
Weighted Average Remaining Lease Term/Discount Rate [Abstract]
Weighted Average Remaining Lease Term/Discount Rate [Abstract]
Entity File Number
Entity File Number
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Tax Jurisdiction of Domicile [Extensible Enumeration]
Tax Jurisdiction of Domicile [Extensible Enumeration]
Accrued Postretirement Benefit Obligation
Accrued Postretirement Benefit Obligation
Accrued Postretirement Benefit Obligation
Long-Lived Assets [Policy Text Block]
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
Change for ESOP related shares
Temporary Equity, Carrying Amount, Period Increase (Decrease)
Reclassification adjustment for net realized gain on debt securities net of income taxes of $(2) and $(0.4) in 2025 and 2024, respectively.
Net realized (gain) loss on debt securities reclassified to investment income
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax
Tabular List, Table
Tabular List [Table Text Block]
Other comprehensive earnings
Other Comprehensive Income (Loss), Tax
Self-Insurance Reserves, Noncurrent
Non Current [Member]
Non Current [Member]
2029
Lessor, Operating Lease, Payment to be Received, Year Four
Recently Issued Accounting Standards [Policy Text Block]
New Accounting Pronouncements, Policy [Policy Text Block]
Fair Value of Financial Instruments [Text Block]
Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block]
Trading Arrangements, by Individual
Trading Arrangements, by Individual [Table]
Age Plus Years of Credited Service Required to Qualify for Post Retirement Benefits
Age Plus Years Of Credited Service Required To Qualify For Post Retirement Benefits
Age Plus Years of Credited Service Required to Qualify for Post Retirement Benefits
Earnings per share
Earnings Per Share, Basic
Adjustment to Compensation:
Adjustment to Compensation [Axis]
Named Executive Officers, Footnote
Named Executive Officers, Footnote [Text Block]
Accounts payable and accrued expenses
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Net other comprehensive earnings (losses)
Other Comprehensive Income (Loss), Net of Tax
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Dividends Payable, Date to be Paid
Dividends Payable, Date to be Paid
Current income tax expense
Current Income Tax Expense (Benefit)
Available For Sale Debt Securities [Table Text Block]
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]
Adjustment to Compensation, Amount
Adjustment to Compensation Amount
Self-Insurance Reserves [Abstract]
Valuation And Qualifying Accounts Abstract
Principles of Consolidation [Policy Text Block]
Consolidation, Policy [Policy Text Block]
Retirement contributions paid or payable in common stock
Share-Based Payment Arrangement, Noncash Expense
2028
Finance Lease, Liability, to be Paid, Year Three
Federal
Federal Income Tax Expense (Benefit), Continuing Operations
Employee Stock Option
Share-Based Payment Arrangement, Option [Member]
Award Timing MNPI Disclosure
Award Timing MNPI Disclosure [Text Block]
Net realized gain on investments
Debt and Equity Securities, Realized Gain (Loss)
Cash Equivalents [Policy Text Block]
Cash and Cash Equivalents, Policy [Policy Text Block]
Income taxes paid
Income Taxes Paid
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Dividends, Common Stock, Cash
Dividends, Common Stock, Cash
Total stockholders’ equity
Beginning Balance
Ending Balance
Stockholders' Equity Attributable to Parent
Equity, Attributable to Parent
Schedule of Available-for-sale Securities [Table]
Debt Securities, Available-for-Sale [Table]
Other comprehensive earnings (losses):
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Insider Trading Policies and Procedures [Line Items]
Common stock, shares authorized
Common Stock, Shares Authorized
Operating Lease, Lease Income [Abstract]
Operating Lease, Lease Income [Abstract]
Sale of shares to stockholders
Stock Issued During Period, Shares, New Issues
Current assets:
Assets, Current [Abstract]
Total liabilities and stockholders' equity
Liabilities and Equity
Postretirement Benefit
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Other operating cash receipts
Proceeds from Other Operating Activity
Contribution of shares to retirement plan
Stock Issued During Period, Shares, Employee Stock Ownership Plan
Liabilities and Equity
Liabilities and Equity [Abstract]
Other
Deferred Tax Assets, Other
Maximum [Member]
Maximum [Member]
Property, plant and equipment:
Property, Plant and Equipment, Net [Abstract]
Accounting Policies [Abstract]
Accounting Policies [Abstract]
Debt Securities, Unrealized Loss Position
Debt Securities, Available-for-Sale, Unrealized Loss Position
Due after ten years
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Effective Income Tax Rate Reconciliation, State and Local Jurisdiction, Contribution Greater than 50 Percent, Tax Effect [Extensible Enumeration]
Effective Income Tax Rate Reconciliation, State and Local Jurisdiction, Contribution Greater than 50 Percent, Tax Effect [Extensible Enumeration]
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Total Compensation Amount
Common Stock (Acquired from) Sold to Stock- holders
Treasury Stock, Common [Member]
Adjustment to Non-PEO NEO Compensation Footnote
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
Pay vs Performance Disclosure [Line Items]
Operating Lease Liability
Operating Lease, Liability
Retirement Benefits [Abstract]
Retirement Benefits [Abstract]
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Total
Lessor, Operating Lease, Payment to be Received
Non-Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
Finance Lease Expense, Amortization of Right-of-Use Assets
Finance Lease, Right-of-Use Asset, Amortization
Entity Shell Company
Entity Shell Company
Other noncurrent liabilities
Other Liabilities, Noncurrent
Proceeds from sale of property, plant and equipment
Proceeds from Sale of Property, Plant, and Equipment
Self-Insurance [Policy Text Block]
Self Insurance Reserve [Policy Text Block]
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Income Tax Paid [Table Text Block]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Company Selected Measure Amount
Company Selected Measure Amount
2028
Lessee, Operating Lease, Liability, to be Paid, Year Three
Award Timing MNPI Considered
Award Timing MNPI Considered [Flag]
Other liabilities
Increase (Decrease) in Other Noncurrent Liabilities
Comprehensive earnings
Comprehensive earnings
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Investment income
Investment income
Investment Income, Nonoperating
Total equity
Total Equity
Total of all equity items, net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests.
Name
Measure Name
Due in one year or less
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One
Current portion of operating lease liabilities
Operating Lease, Liability, Current
Finance Lease Expense, Interest on Lease Liabilities
Finance Lease, Interest Expense
Deferred income taxes
Deferred Income Tax Liabilities, Net
Document Fiscal Period Focus
Document Fiscal Period Focus
Award Timing Method
Award Timing Method [Text Block]
Furniture and fixtures [Member]
Furniture and Fixtures [Member]
Award Type
Award Type [Axis]
Cash received from customers
Proceeds from Customers
Legal Entity [Axis]
Legal Entity [Axis]
Total assets
Total assets
Assets
2029
Lessee, Operating Lease, Liability, to be Paid, Year Four
Lessor Disclosure [Abstract]
Lessor Disclosure [Abstract]
Summary Of Significant Accounting Policies [Line Items]
Summary Of Significant Accounting Policies [Line Items]
Summary Of Significant Accounting Policies [Line Items]
Income Taxes [Policy Text Block]
Income Tax, Policy [Policy Text Block]
Net earnings excluding impact of fair value adjustment (2) (unaudited)
Net Earnings Excluding Impact of Fair Value Adjustment
The Company presents net earnings and earnings per share excluding the impact of equity securities being measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings (fair value adjustment). These measures are not in accordance with, or an alternative to, GAAP. The Company excludes the impact of the fair value adjustment since it is primarily due to temporary equity market fluctuations that do not reflect the Company’s operations. The Company believes this information is useful in providing period-to-period comparisons of the results of operations.
Entity Address, City or Town
Entity Address, City or Town
Cash flows from operating activities:
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Finance Lease, Weighted Average Discount Rate, Percent
Finance Lease, Weighted Average Discount Rate, Percent
Other segment items (1)
Segment Reporting, Other Segment Item, Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Compensation Actually Paid vs. Other Measure
Compensation Actually Paid vs. Other Measure [Text Block]
Entity Emerging Growth Company
Entity Emerging Growth Company
Self-Insurance Reserves [Text Block]
ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock [Text Block]
Schedule Of Valuation And Qualifying Accounts Disclosure Text Block
Common Stock, Dividends, Per Share, Declared
Common Stock, Dividends, Per Share, Declared
Dividends Payable, Date Declared
Dividends Payable, Date Declared
2026
Finance Lease, Liability, to be Paid, Year One
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Finance Lease, Weighted Average Remaining Lease Term
Finance Lease, Weighted Average Remaining Lease Term
Right-of-use assets obtained in exchange for new operating lease liabilities
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Lease, Cost [Abstract]
Lease, Cost [Abstract]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale [Line Items]
Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year
Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member]
Sales
Revenue from Contract with Customer, Including Assessed Tax
Level 2
Fair Value, Inputs, Level 2 [Member]
Document Financial Statement Error Correction Flag
Document Financial Statement Error Correction [Flag]
State income taxes (net of federal tax benefit)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
Insider Trading Policies and Procedures Not Adopted
Insider Trading Policies and Procedures Not Adopted [Text Block]
Loss on disposal and impairment of long-lived assets
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Less: Imputed Interest
Finance Lease, Liability, Undiscounted Excess Amount
Common stock related to ESOP
Common Stock Related To Employee Stock Ownership Plan
Common Stock Related to Employee Stock Ownership Plan
Common stock, shares outstanding
Common Stock, Shares, Outstanding
Provision for Income Taxes [Table Text Block]
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Property, Plant and Equipment and Depreciation [Policy Text Block]
Property, Plant and Equipment, Policy [Policy Text Block]
PEO
PEO [Member]
Lessee, Lease, Term of Contract
Lessee, Lease, Term of Contract
Initial lease term
Amortized Cost and Fair Value of Available for Sale Debt Securities by Expected Maturity [Table Text Block]
Investments Classified by Contractual Maturity Date [Table Text Block]
Proceeds from sale and maturity of investments
Proceeds from Sale, Maturity and Collection of Investments
Current
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Change in operating assets and liabilities providing (requiring) cash:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member]
Property, plant and equipment
Deferred Tax Liabilities, Property, Plant and Equipment
Leases, Supplemental Cash Flow Information [Abstract]
Leases, Supplemental Cash Flow Information [Abstract]
Leases, Supplemental Cash Flow Information [Abstract]
Retained Earnings
Retained Earnings [Member]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Restatement Determination Date
Restatement Determination Date
Income Statement [Abstract]
Income Statement [Abstract]
Cash and cash equivalents
Cash and cash equivalents at beginning of year
Cash and cash equivalents at end of year
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Income tax expense
Earnings
Income tax expense
Income Tax Expense (Benefit)
ESOP shares, fair value
Employee Stock Ownership Plan (ESOP), Fair Value of Shares Subject to Repurchase Obligation
Continuous Unrealized Loss Position, 12 Months or Longer
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer
Pension Adjustments Service Cost
Pension Adjustments Service Cost [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Retirement Plans [Text Block]
Retirement Plans [Text Block]
Retirement Plans.
Property, plant and equipment
Property, Plant and Equipment, Gross
Dividends Payable, Date of Record
Dividends Payable, Date of Record
2028
Lessor, Operating Lease, Payment to be Received, Year Three
Restatement does not require Recovery
Restatement Does Not Require Recovery [Text Block]
Restricted Investments
Debt Securities, Restricted [Member]
Debt Securities, Restricted [Member]
Compensation Actually Paid vs. Company Selected Measure
Compensation Actually Paid vs. Company Selected Measure [Text Block]
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]
City Area Code
City Area Code
Award Timing, How MNPI Considered
Award Timing, How MNPI Considered [Text Block]
Federal
Income Tax Paid, Federal, after Refund Received
All Trading Arrangements
All Trading Arrangements [Member]
Equity Awards Adjustments, Footnote
Equity Awards Adjustments, Footnote [Text Block]
Total Shareholder Return Vs Peer Group
Total Shareholder Return Vs Peer Group [Text Block]
Self-Insurance Reserves [Domain]
ValuationAllowancesAndReservesDomain [Domain]
Valuation Allowances And Reserves Domain
Lessee Disclosure [Abstract]
Lessee Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Buildings and improvements
Buildings and Improvements, Gross
Deferred Tax Liabilities, Net
Deferred Tax Liabilities, Net
Inventories
Deferred Tax Liabilities, Inventory
Cash flows from investing activities:
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Pay vs Performance Disclosure
Pay vs Performance Disclosure [Table]
Net cash provided by operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Percentage of company match approved for eligible contributions
Defined Contribution Plan, Employer Matching Contribution, Percent of Match
Long-term investments
Long-Term Investments
Retirement of shares
Treasury Stock, Retired, Cost Method, Amount
Estimated useful life, years
Property, Plant and Equipment, Useful Life
Buildings and improvements [Member]
Building Improvements [Member]
Subsequent Event [Member]
Subsequent Event [Member]
Lease Cost
Lease, Cost
Equity Valuation Assumption Difference, Footnote
Equity Valuation Assumption Difference, Footnote [Text Block]
Lease, Cost [Table Text Block]
Lease, Cost [Table Text Block]
PEO Total Compensation Amount
PEO Total Compensation Amount
Gain on investments
Gain (Loss) on Investments
2029
Finance Lease, Liability, to be Paid, Year Four
Federal
Deferred Federal Income Tax Expense (Benefit)
Equity Components [Axis]
Equity Components [Axis]
Property Plant and Equipment Estimated Useful Lives [Line Items]
Property, Plant and Equipment [Line Items]
Sublease rental income
Sublease Income
Auditor Name
Auditor Name
Business [Text Block]
Nature of Operations [Text Block]
Non-Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Fair Value
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value
Reclassification adjustment for net realized gain on debt securities income taxes
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax
MovementInValuationAllowancesAndReservesRollForward [Roll Forward]
MovementInValuationAllowancesAndReservesRollForward [Roll Forward]
Movement In Valuation Allowances And Reserves Roll Forward
Postretirement Benefits Number of Years of Full Time Service for Eligibility
Postretirement Benefits Number Of Years Of Full Time Service For Eligibility
Postretirement Benefits Number Of Years Of Full Time Service For Eligibility
Amortized Cost
Amortized Cost
Debt Securities, Available-for-Sale, Amortized Cost
Advertising Costs [Policy Text Block]
Advertising Cost [Policy Text Block]
Other Performance Measure, Amount
Other Performance Measure, Amount
Entity Address, State or Province
Entity Address, State or Province
Dividends per share
Dividends, Common Stock
2026
Lessor, Operating Lease, Payment to be Received, Year One
Postretirement Benefit [Policy Text Block]
Pension and Other Postretirement Plans, Policy [Policy Text Block]
Total current liabilities
Liabilities, Current
Self-Insurance Reserves Type [Axis]
ValuationAllowancesAndReservesTypeAxis [Axis]
Valuation Allowances And Reserves Type Axis
Individual:
Individual [Axis]
Compensation Expense (401(k))
Defined Contribution Plan, Cost
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Abstract]
Lessee, Finance Leases [Text Block]
Lessee, Finance Leases [Text Block]
Additions
Charged to
Income
Valuation Allowances and Reserves, Additions, Charge to Cost and Expense
Valuation Allowances and Reserves, Additions, Charge to Cost and Expense
Right-of-use assets obtained in exchange for new finance lease liabilities
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Document Annual Report
Document Annual Report
Additional paid-in capital
Additional Paid in Capital, Common Stock
Entity [Domain]
Entity [Domain]
Net cash used in investing activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table
Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member]
Document Fiscal Year Focus
Document Fiscal Year Focus
Operating lease right-of-use assets
Operating Lease, Right-of-Use Asset
Forgone Recovery, Explanation of Impracticability
Forgone Recovery, Explanation of Impracticability [Text Block]
Other Operating Income [Policy Text Block]
Other Operating Income, Policy [Policy Text Block]
Other Operating Income.
Repayment of finance leases and long-term debt
Repayments of Long-Term Debt
Income tax expense
Effective Income Tax Rate Reconciliation, Percent
Entity Interactive Data Current
Entity Interactive Data Current
Operating lease expense
Operating Lease, Cost
Reconciliation of net earnings to net cash provided by operating activities:
Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract]
Common Stock Related to ESOP
Common Stock Related To Esop [Member]
Common Stock Related To ESOP [Member]
Leasehold improvements
Leasehold Improvements, Gross
Vendor rebates
Deferred Tax Assets, Deferred Income
Deferred Tax Assets, Valuation Allowance
Deferred Tax Assets, Valuation Allowance
Equity [Abstract]
Equity [Abstract]
Segment Reporting Disclosure [Text Block]
Segment Reporting Disclosure [Text Block]
Investments
Marketable Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Federal
Current Federal Tax Expense (Benefit)
Property, Plant and Equipment, Type [Axis]
Long-Lived Tangible Asset [Axis]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Minimum Years of Full Time Service for Eligible Employees of Postretirement Plans
Minimum Years Of Full Time Service For Eligible Employees Of Postretirement Plans
Minimum Years Of Full Time Service For Eligible Employees Of Postretirement Plans
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
Accumulated Other Comprehensive Earnings (Losses)[Text Block]
Comprehensive Income (Loss) Note [Text Block]
2027
Finance Lease, Liability, to be Paid, Year Two
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block]
Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block]
Lessee, Leases [Policy Text Block]
Lessee, Leases [Policy Text Block]
Schedule of Changes in Accumulated Other Comprehensive Earnings (Losses) [Table Text Block]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Other noncurrent assets
Other Assets, Noncurrent
Self-Insurance Reserves [Table]
ValuationAndQualifyingAccountsDisclosureTable [Table]
Valuation And Qualifying Accounts Disclosure Table
Entity Central Index Key
Entity Central Index Key
PEO Name
PEO Name
Total revenues
Total revenues
Revenues
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member]
Outstanding Aggregate Erroneous Compensation Amount
Outstanding Aggregate Erroneous Compensation Amount
Trade Receivables [Policy Text Block]
Accounts Receivable [Policy Text Block]
State
State and Local Income Tax Expense (Benefit), Continuing Operations
Finance Lease Liability
Finance Lease, Liability
Arrangement Duration
Trading Arrangement Duration
Income tax expense
Income Tax Expense (Benefit), Intraperiod Tax Allocation
Other assets
Increase (Decrease) in Prepaid Expense and Other Assets
Common stock related to Employee Stock Ownership Plan (ESOP)
Common stock related to ESOP
Temporary Equity, Carrying Amount, Attributable to Parent
Exercise Price
Award Exercise Price
Entity Filer Category
Entity Filer Category
Local Phone Number
Local Phone Number
Additional 402(v) Disclosure
Additional 402(v) Disclosure [Text Block]
Federal tax at statutory income tax rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Assets
Assets [Abstract]
Long-Term Debt, Excluding Current Maturities
Long-Term Debt, Excluding Current Maturities
Underlying Security Market Price Change
Underlying Security Market Price Change, Percent
Income Tax Paid, by Individual Jurisdiction [Abstract]
Income Tax Paid, by Individual Jurisdiction [Abstract]
Stockholders’ equity:
Equity, Attributable to Parent [Abstract]
Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year
Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member]
Self-insurance reserves
Self Insurance Reserve, Current
Entity Address, Address Line One
Entity Address, Address Line One
Acquisition of shares from stockholders
Treasury Stock, Value, Acquired, Cost Method
Accumu- lated Other Compre- hensive Earnings (Losses)
Accumu- lated Other Compre- hensive Earnings (Losses)
AOCI Attributable to Parent [Member]
Operating lease liabilities
Operating Lease, Liability, Noncurrent
Entity Voluntary Filers
Entity Voluntary Filers
Balance at
Beginning of
Year
Balance at
End of
Year
Valuation Allowances and Reserves, Amount
Valuation Allowances and Reserves, Amount
Land
Land
Fair Value as of Grant Date
Award Grant Date Fair Value
Schedule Of Allocation Of Income Taxes [Table Text Block]
Schedule Of Allocation Of Income Taxes [Table Text Block]
Allocation of total income taxes within the financial statements.
Entity Registrant Name
Entity Registrant Name
Stock Price or TSR Estimation Method
Stock Price or TSR Estimation Method [Text Block]
Total adjustments
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity
Payment for investments
Payments to Acquire Investments
Total costs and expenses
Costs and Expenses
Maximum amount match per employee
Maximum Amount Of Matching Contributions Per Employee
Maximum Amount Of Matching Contributions Per Employee
Continuous Unrealized Loss Position, Less than 12 Months
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions
Changed Peer Group, Footnote
Changed Peer Group, Footnote [Text Block]
Inventories
Increase (Decrease) in Retail Related Inventories
2027
Lessee, Operating Lease, Liability, to be Paid, Year Two
Finance lease right-of-use assets
Finance Lease, Right-of-Use Asset, before Accumulated Amortization
Other Nonoperating Income, net [Policy Text Block]
Other Income Net, Policy [Policy Text Block]
Other Income Net
O2026Q1Dividends
O2026Q1Dividends [Member]
O2026Q1Dividends
Net amortization of investments
Accretion (Amortization) of Discounts and Premiums, Investments
Adjustment To PEO Compensation, Footnote
Adjustment To PEO Compensation, Footnote [Text Block]
Accumulation of Losses Exceeds Benefit Obligation
Accumulation Of Losses Exceeds Benefit Obligation
Losses accumulated percentage threshold required to amortize actuarial losses from other comprehensive earnings into net periodic postretirement benefit cost.
Title
Trading Arrangement, Individual Title
Peer Group Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
Restatement Determination Date:
Restatement Determination Date [Axis]
Lessee, Operating Lease, Not yet Commenced, Description [Abstract]
Lessee, Operating Lease, Not yet Commenced, Description [Abstract]
Non-PEO NEO
Non-PEO NEO [Member]
Property Plant and Equipment Estimated Useful Lives [Table]
Property Plant And Equipment Estimated Useful Lives [Table]
Property Plant and Equipment Estimated Useful Lives [Table]
Debt Securities, Available-for-sale, Allowance for Credit Loss
Debt Securities, Available-for-Sale, Allowance for Credit Loss
Accumulated Other Comprehensive Earnings (Losses) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Lease assets
Deferred Tax Liabilities, Leasing Arrangements
Other, net
Proceeds from (Payment for) Other Financing Activity
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract
Accumulated Other Comprehensive Earnings (Losses) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Name
Trading Arrangement, Individual Name
All Award Types
Award Type [Domain]
2026
Lessee, Operating Lease, Liability, to be Paid, Year One
Operating Lease, Lease Not Yet Commenced, Expense
Operating Lease, Lease Not Yet Commenced, Expense
Fixed lease payments (undiscounted) for leases not yet commenced.
Noncontrolling interests
Equity, Attributable to Noncontrolling Interest
Equity Awards Adjustments
Equity Awards Adjustments [Member]
Leasehold improvements [Member]
Leasehold Improvements [Member]
Advertising costs
Advertising Expense
Pension Benefits Adjustments, Footnote
Pension Benefits Adjustments, Footnote [Text Block]
Trade receivables
Increase (Decrease) in Accounts and Other Receivables
Compensation Amount
Outstanding Recovery Compensation Amount
Deferred
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Other, net
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent
Adjustment to postretirement benefit obligation income taxes
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Recovery of Erroneously Awarded Compensation Disclosure [Line Items]
MNPI Disclosure Timed for Compensation Value
MNPI Disclosure Timed for Compensation Value [Flag]
Due after one year through five years
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five
Name
Awards Close in Time to MNPI Disclosures, Individual Name
Aggregate Erroneous Compensation Not Yet Determined
Aggregate Erroneous Compensation Not Yet Determined [Text Block]
ICFR Auditor Attestation Flag
ICFR Auditor Attestation Flag
Percentage of eligible wages for matching contributions
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
Revenues:
Revenues [Abstract]
Credit Loss [Abstract]
Due after five years through ten years
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10
Unrealized gain on debt securities income taxes
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax
Lessee, Finance Lease, Liability, Maturity [Table Text Block]
Finance Lease, Liability, to be Paid, Maturity [Table Text Block]
Dividends and interest received
Proceeds from Interest and Dividends Received
Accumulated other comprehensive losses
Accumulated Other Comprehensive Income (Loss), Net of Tax
Financial Instruments [Domain]
Financial Instruments [Domain]
Auditor Firm ID
Auditor Firm ID
ESOP dividend
Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent
Investments Disclosure [Text Block]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Aggregate Pension Adjustments Service Cost
Aggregate Pension Adjustments Service Cost [Member]
Other operating cash payments
Payment for Other Operating Activity
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Investments
Deferred Tax Liabilities, Investments
Minimum [Member]
Minimum [Member]
Investments
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Common Stock and Earnings Per Share [Policy Text Block]
Earnings Per Share, Policy [Policy Text Block]
Accumulated depreciation
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Company Selected Measure Name
Company Selected Measure Name
Cash paid to employees and suppliers
Payments to Suppliers and Employees
Revenue Recognition [Policy Text Block]
Revenue [Policy Text Block]
Cost of Merchandise Sold [Policy Text Block]
Cost of Goods and Service [Policy Text Block]
Aggregate Available
Trading Arrangement, Securities Aggregate Available Amount
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]
Accounts payable
Accounts Payable, Current
Operating cash flows from rent paid for operating lease liabilities
Operating Lease, Payments
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
All Executive Categories
All Executive Categories [Member]
Tax Effects of Temporary Differences That Give Rise to Deferred Income Taxes [Table Text Bock]
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Other operating income
Other Operating Income
Common stock of $1 par value. Authorized 4,000 shares; issued and outstanding 3,216 shares in 2025 and 3,258 shares in 2024
Common Stock, Value, Issued
Short-term investments
Short-Term Investments
Commitments and Contingencies [Text Block]
Commitments and Contingencies Disclosure [Text Block]
Commitments and contingencies
Commitments and Contingencies
Non-GAAP Measure Description
Non-GAAP Measure Description [Text Block]
Furniture, fixtures and equipment
Furniture and Fixtures, Gross
Entity Small Business
Entity Small Business
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Retirement plan contributions
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Other
ESOP, shares cost
Employee Stock Ownership Plan Share Cost
The cost of ESOP shares subject to put option as of the balance sheet date.
State
Current State and Local Tax Expense (Benefit)
Long-Term Debt [Policy Text Block]
Long-Term Debt [Text Block]
Document Transition Report
Document Transition Report
Investment Income (Loss) [Table Text Block]
Investment Income [Table Text Block]
Due after one year through five years
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five
Thereafter
Lessor, Operating Lease, Payment to be Received, after Year Five
Total Payments Due
Finance Lease, Liability, to be Paid
Underlying Securities
Award Underlying Securities Amount
Valuation of Qualifying Accounts [Table Text Block]
Valuation of Qualifying Accounts [Table Text Block]
Valuation of Qualifying Accounts [Table Text Block]
Equity Component [Domain]
Equity Component [Domain]
Document Period End Date
Document Period End Date
PEO Actually Paid Compensation Amount
PEO Actually Paid Compensation Amount
Due after ten years
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10
Income Taxes Disclosure [Text Block]
Income Tax Disclosure [Text Block]
Awards Close in Time to MNPI Disclosures, Table
Awards Close in Time to MNPI Disclosures [Table Text Block]
Investment Income Before Fair Value Adjustment
Investment income before fair value adjustment
This item represents investment income derived from investments in debt and equity securities consisting of interest income earned from investments in debt securities and on cash and cash equivalents, dividend income from investments in equity securities, and income or expense derived from the amortization of investment related discounts or premiums, respectively, net of related investment expenses. This item also includes realized gains or losses on the sale of debt and equity securities. Excludes unrealized gains on equity securities holdings.
Document Type
Document Type
Level 3
Fair Value, Inputs, Level 3 [Member]
Name
Outstanding Recovery, Individual Name
Proceeds from sale of common stock
Proceeds from Issuance of Common Stock
Variable lease expense
Variable Lease, Cost
All Individuals
All Individuals [Member]
Operating Cash Flows, Direct Method [Abstract]
Operating Cash Flows, Direct Method [Abstract]
Distributed shares subject to put option, fair value
Employee Stock Ownership Plan Put Option Distributed Shares Fair Value
Fair value of distributed ESOP shares subject to put option as of balance sheet date.
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
Payment for capital expenditures
Payment for capital expenditures
Payments to Acquire Property, Plant, and Equipment
Name
Forgone Recovery, Individual Name
Total current assets
Assets, Current
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested
Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member]
Variable Lease Income
Operating Lease, Variable Lease Income
Percent Revenue from Non-Perishable Products and Services
Percent Revenue From Non-Perishable Products and Services
Revenue derived from non-perishable products and services, including grocery, health and beauty care, general merchandise, pharmacy and other goods and services.
Renewable energy investment tax credits
Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Percent
Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Amount
Summary Of Significant Accounting Policies [Table]
Summary Of Significant Accounting Policies [Table]
Summary Of Significant Accounting Policies [Table]
Peer Group Issuers, Footnote
Peer Group Issuers, Footnote [Text Block]
Percent Revenue from Perishable Products
Percent Revenue From Perishable Products
Revenue derived from perishable products sales including dairy, produce, floral, deli, bakery, meat, seafood and frozen foods.
Finance lease right-of-use assets [Member]
Finance lease right-of-use assets [Member]
Finance lease right-of-use assets
Accrued expenses:
Accrued Liabilities, Current [Abstract]
Erroneous Compensation Analysis
Erroneous Compensation Analysis [Text Block]
Current liabilities:
Liabilities, Current [Abstract]
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
Operating and administrative expenses
Operating Expenses
Rule 10b5-1 Arrangement Terminated
Rule 10b5-1 Arrangement Terminated [Flag]
Lease liabilities
Deferred Tax Assets, Leasing Arrangements
Deferred Tax Assets, Leasing Arrangements
Level 1
Fair Value, Inputs, Level 1 [Member]
Deductions
From
Reserves
Valuation Allowances and Reserves, Deduction
Valuation Allowances and Reserves, Deduction
Lessor, Operating Leases [Text Block]
Lessor, Operating Leases [Text Block]
Erroneously Awarded Compensation Recovery
Erroneously Awarded Compensation Recovery [Table]
2030
Lessor, Operating Lease, Payment to be Received, Year Five
Trade receivables
Accounts Receivable, after Allowance for Credit Loss, Current
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Table]
Due after five years through ten years
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10
Accumulated Other Comprehensive Earnings (Losses), Net of Tax [Roll Forward]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other, net
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount
Lessee Leases, Renewal Term
Lessee Leases, Renewal Term
Renewal option term
Dividends [Axis]
Dividends [Axis]
State
Income Tax Paid, State and Local, after Refund Received
2030
Lessee, Operating Lease, Liability, to be Paid, Year Five
Nonoperating income
Nonoperating Income (Expense)
Investments, Debt and Equity Securities [Abstract]
Investments, Debt and Equity Securities [Abstract]
Unrealized Gain
Debt Securities, Available-for-Sale, Unrealized Gain
Auditor Location
Auditor Location
Self-Insurance Reserves Disclosure [Line Items]
ValuationAndQualifyingAccountsDisclosureLineItems [Line Items]
Valuation And Qualifying Accounts Disclosure Line Items
Comprehensive Earnings [Policy Text Block]
Comprehensive Income, Policy [Policy Text Block]
Less: Imputed Interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Income Taxes Paid, Net
Income Taxes Paid, Net
Acquisition of shares from stockholders
Treasury Stock, Shares, Acquired
Thereafter
Finance Lease, Liability, to be Paid, after Year Five
Award Timing Disclosures [Line Items]
Inventories
Retail Related Inventory, Merchandise
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Increase in last-in, first-out (LIFO) reserve
Inventory, LIFO Reserve, Effect on Income, Net
Salaries and wages
Employee-related Liabilities, Current
Total Payments Due
Lessee, Operating Lease, Liability, to be Paid
Unrealized gain on debt securities net of income taxes of $85, $43 and $70 in 2025, 2024 and 2023, respectively.
Unrealized gain (loss) on debt securities
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
State
Deferred State and Local Income Tax Expense (Benefit)
Fiscal Year [Policy Text Block]
Fiscal Period, Policy [Policy Text Block]
Net earnings
Net earnings
Net earnings
Net Income (Loss) Attributable to Parent
Dividends [Domain]
Dividends [Domain]
Subsequent Event [Table]
Subsequent Event [Table]
Operating Lease, Lease Income [Table Text Block]
Operating Lease, Lease Income [Table Text Block]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]
Expiration Date
Trading Arrangement Expiration Date
Lease Income
Operating Lease, Lease Income, Lease Payments
Other
Other Accrued Liabilities, Current
Reconciliation of Provision for Income Taxes at Federal Statutory Tax Rate to Earnings Before Income Taxes [Table Text Block]
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Fair value adjustment, due to net unrealized gain, on equity securities held at end of year
Equity Securities, FV-NI, Unrealized Gain (Loss)
Net property, plant and equipment
Property, Plant and Equipment, Net
Payment for acquisition of common stock
Payments for Repurchase of Common Stock
Adoption Date
Trading Arrangement Adoption Date
Percent of cost for inventories determined using LIFO
Percentage of LIFO Inventory
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Net Income [Text Block]
Inventories [Policy Text Block]
Inventory, Policy [Policy Text Block]
Self-insured claims paid
Payments For Self Insured Claims
Payments for Self Insured Claims
Entity Current Reporting Status
Entity Current Reporting Status
Awards Close in Time to MNPI Disclosures
Awards Close in Time to MNPI Disclosures [Table]
Operating profit
Operating Income (Loss)
Due in one year or less
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One
Retained earnings
Retained Earnings (Accumulated Deficit)
Self-insurance reserves
Self Insurance Reserve, Noncurrent
Federal tax at statutory income tax rate
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Financial Instrument [Axis]
Financial Instrument [Axis]
Deferred tax liabilities and (assets):
Deferred Tax Assets, Gross [Abstract]
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested
Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member]
Executive Category:
Executive Category [Axis]
Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
State income taxes (net of federal tax benefit)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
Compensation expense (ESOP)
Employee Stock Ownership Plan (ESOP), Compensation Expense
Renewable energy investment tax credits
Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Amount
Current Fiscal Year End Date
Current Fiscal Year End Date
Document Documentand Entity Information [Abstract]
Document Documentand Entity Information [Abstract]
Document Documentand Entity Information [Abstract]
Maximum contribution percentage of employees' eligible annual compensation
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table
Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member]
Other nonoperating income, net
Other Nonoperating Income (Expense)
Statement [Table]
Statement [Table]
Deferred income taxes
Deferred income taxes
Deferred Income Tax Expense (Benefit)
Adjustments to reconcile net earnings to net cash provided by operating activities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Cash flows from financing activities:
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Equity Awards Adjustments, Excluding Value Reported in Compensation Table
Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]
Excess of Replacement or Current Costs over Stated LIFO Value
Excess of Replacement or Current Costs over Stated LIFO Value
Debt Securities, Unrealized Loss Position, Accumulated Loss
Total, Unrealized Losses
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss
Cost
Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Equity Securities
Equity Securities, FV-NI, Current
Finance lease liabilities
Finance Lease, Liability, Noncurrent
Unrecognized tax benefits
Unrecognized Tax Benefits
All Adjustments to Compensation
All Adjustments to Compensation [Member]
Retirement of shares
Treasury Stock, Shares, Retired
Amendment Flag - Incentive Based Compensation
Amendment Flag
Fair Value
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Contribution of shares to retirement plan
Stock Issued During Period, Value, Employee Stock Ownership Plan
Earnings before income tax expense
Income (Loss) Attributable to Parent, before Tax
Lessee, Operating Leases [Text Block]
Lessee, Operating Leases [Text Block]
Termination Date
Trading Arrangement Termination Date
Net cash used in financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Adopted [Flag]
Measure:
Measure [Axis]
Minimum Retirement Age For Eligible Employees Of Postretirement Plans
Minimum Retirement Age For Eligible Employees Of Postretirement Plans
Minimum Retirement Age For Eligible Employees Of Postretirement Plans
Operating Lease, Weighted Average Discount Rate, Percent
Operating Lease, Weighted Average Discount Rate, Percent
Property, Plant and Equipment, Type [Domain]
Long-Lived Tangible Asset [Domain]
Summary of Fair Value Measurements [Table Text Block]
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
Weighted average shares outstanding
Weighted Average Number of Shares Outstanding, Basic
Cost of merchandise sold
Cost of Product and Service Sold
Subsequent Events [Abstract]
Subsequent Events [Abstract]
Segment Reporting [Abstract]
Pay vs Performance Disclosure, Table
Pay vs Performance [Table Text Block]
Investment Income Debt and Equity Securities [Abstract]
Investment Income Debt and Equity Securities [Abstract]
Investment Income Debt and Equity Securities [Abstract]
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Entity Tax Identification Number
Entity Tax Identification Number
Costs and expenses:
Costs and Expenses [Abstract]
Unrealized Loss
Debt Securities, Available-for-Sale, Unrealized Loss
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Expense of Enforcement, Amount
Common stock, par value
Common Stock, Par or Stated Value Per Share
Common stock, shares issued
Common Stock, Shares, Issued
Self-Insurance Reserves, Current
Current [Member]
Current [Member]
Contributions to retirement plans
Employee Stock Ownership Plan 401 K Payable Current
The total amount of the entity's current obligation as of the balance sheet date under its ESOP and 401(k) retirement plans.
Operating Lease, Weighted Average Remaining Lease Term
Operating Lease, Weighted Average Remaining Lease Term
Net gain on sale of equity securities previously recognized through fair value adjustment
Equity Securities, FV-NI, Realized Gain (Loss)
Adjustment to postretirement benefit obligation net of income taxes of $(1), $1 and $(0.4) in 2025, 2024 and 2023, respectively.
Adjustment to postretirement benefit obligation
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax
Use of Estimates [Policy Text Block]
Use of Estimates, Policy [Policy Text Block]
Dividends paid
Payments of Dividends
Entity Public Float
Entity Public Float
Construction in progress
Construction in Progress, Gross
Trading Arrangement:
Trading Arrangement [Axis]
Income taxes
Increase (Decrease) in Income Taxes Payable
Total Shareholder Return Amount
Total Shareholder Return Amount
ESOP dividend
Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount
Operating Lease Income
Operating Lease, Lease Income
Subsequent Events [Text Block]
Subsequent Events [Text Block]
Insider Trading Arrangements [Line Items]
2027
Lessor, Operating Lease, Payment to be Received, Year Two
Total liabilities
Liabilities
2030
Finance Lease, Liability, to be Paid, Year Five
Interest and dividend income
Investment Income, Net
Pension Adjustments Prior Service Cost
Pension Adjustments Prior Service Cost [Member]
Prepaid expenses
Prepaid Expense, Current
Material Terms of Trading Arrangement
Material Terms of Trading Arrangement [Text Block]
Sale of shares to stockholders
Stock Issued During Period, Value, New Issues
Statement [Line Items]
Statement [Line Items]
Rule 10b5-1 Arrangement Adopted
Rule 10b5-1 Arrangement Adopted [Flag]
Subsequent Event [Line Items]
Subsequent Event [Line Items]
Common Stock
Common Stock [Member]
Fair Value
Debt Securities, Available-for-Sale
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Non-NEOs
Non-NEOs [Member]
Finance Lease, Liability, Payment, Due [Abstract]
Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Taxable Bonds
Corporate Debt Securities [Member]
Net decrease in cash and cash equivalents
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
FLORIDA
ALABAMA
GEORGIA
UNITED STATES