National Beef Packing Company, LLC [Member] Legal Entity [Axis] Class A Units [Member] Class of Stock [Axis] Class B Units [Member] Phantom Share Units (PSUs) [Member] Antidilutive Securities [Axis] Statement [Table] Statement [Line Items] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity a Well-known Seasoned Issuer Entity a Voluntary Filer Entity's Reporting Status Current Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Document Fiscal Period Focus Document Fiscal Year Focus Statement of Financial Position [Abstract] Assets Current assets: Cash and cash equivalents Due from affiliates Other current assets Total current assets Property, plant, and equipment, at cost Less accumulated depreciation Net property, plant, and equipment Investment in National Beef Packing Company, LLC Other assets Total assets Liabilities and Capital Shares and Equities Current liabilities: Accounts payable - trade Due to affiliates Accrued compensation and benefits Other accrued expenses and liabilities Patronage notices payable Distributions payable Total current liabilities Long-term liabilities: Other liabilities Total long-term liabilities Total liabilities Commitments and contingencies Capital shares and equities: Members' capital, 735,385 Class A units and 755,385 Class B units authorized, issued and outstanding Total capital shares and equities Total liabilities and capital shares and equities Members' capital, units authorized Members' capital, units issued Members' capital, units outstanding Net sales Costs and expenses: Cost of sales Selling, general, and administrative expenses Depreciation and amortization Total costs and expenses Operating loss Other (expense) income: Interest income Interest expense Equity interest in net (loss) income of National Beef Packing Company, LLC Other, net (Loss) income before taxes Income tax expense Net (loss) income (Loss) income per unit: Basic Diluted Outstanding weighted-average Class A and Class B units: Basic Diluted Statement of Cash Flows [Abstract] Cash flows from operating activities: Net loss Adjustments to reconcile net loss to net cash used in operating activities: Equity in net loss (earnings) of National Beef Packing Company, LLC Changes in assets and liabilities: Due from affiliates Other receivables Other assets Accounts payable Due to affiliates Accrued compensation and benefits Other accrued expenses and liabilities Net cash used in operating activities Cash flows from investing activities: Capital expenditures Distribution from National Beef Packing Company, LLC Release of escrowed funds related to the 2011 transaction with Leucadia Net cash (used in) provided by investing activities Cash flows from financing activities: Change in overdraft balances Prior year excess distribution Member distributions Net cash used in financing activities Net (decrease) increase in cash Cash and cash equivalents at beginning of the period Cash and cash equivalents at end of the period Organization, Consolidation and Presentation of Financial Statements [Abstract] Interim Financial Statements Members' Equity [Abstract] Members' Capital Limited Liability Company (LLC) Members' Equity [Abstract] Loss Attributable to USPB Per Unit Investments in and Advances to Affiliates, Schedule of Investments [Abstract] Investment in National Beef Packing Company, LLC Schedule of Reconciliation of Members' Capital Schedule of Income (Loss) Per Unit Calculation Schedule of Operations for NBP Basis of Presentation Details: Leucadia to purchase of the membership interests in NBP Remaining membership interests in National Beef Packing Company, LLC (NBP) Beginning balance Net loss for the thirty-nine week period ended September 26, 2015 Ending balance Schedule of Stock by Class [Table] Class of Stock [Line Items] Ownership percentage Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive securities Payment for phantom appreciation rights Basic net (loss) income per unit Net (loss) income attributable to USPB available to unitholders (numerator) Weighted average outstanding units (denominator) Per unit amount Diluted net (loss) income per unit: Net (loss) income attributable to USPB available to unitholders (numerator) Weighted average outstanding Weighted average outstanding units (denominator) Effect of dilutive securities Per unit amount Schedule of Investments [Table] Schedule of Investments [Line Items] Total costs and expenses Operating (loss) income Other (expense) income: Loss (income) before taxes Net (loss) income NBP's net (loss) income attributable to USPB Basis of presentation details [Abstract] Class A Units [Member] Class B Units [Member] Total amount of distributions payable. Document and entity information [Abstract] Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the noncurrent portion of the liabilities due after one year (or the normal operating cycle, if longer). This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. Percentage of purchase arrangement in which the entity has agreed The entire tabular disclosure for beginning balance of members capital changes during the year and ending balance. National Beef Packing Company, LLC [Member] Total of patronage notice payable in cash. Payments for phantom appreciation rights during the period. The cash inflow from prior year excess distribution. The entire tabular disclosure for beginning balance of members capital changes during the year and ending balance. Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction. Tabular disclosure of the numerators and the denominators of the basic and diluted per-share (or per-unit) computations for income from continuing operations, including the effect that has been given to preferred dividends, if any. Total of all Liabilities and Capital Shares and Equities items, including the portion of equity attributable to noncontrolling interests. Distribution from national beef packing company. Assets, Current Property, Plant and Equipment, Net Assets [Default Label] Liabilities, Current Liabilities, Noncurrent Liabilities Stockholders' Equity Attributable to Parent TotalLiabilitiesAndCapitalSharesAndEquities Interest Expense Income Tax Expense (Benefit) Weighted Average Limited Partnership Units Outstanding, Diluted Increase (Decrease) in Due from Affiliates, Current Increase (Decrease) in Other Receivables Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Due to Affiliates, Current Increase (Decrease) in Employee Related Liabilities Increase (Decrease) in Other Accrued Liabilities Net Cash Provided by (Used in) Operating Activities Payments to Acquire Property, Plant, and Equipment Net Cash Provided by (Used in) Investing Activities Payments of Capital Distribution Net Cash Provided by (Used in) Financing Activities Cash and Cash Equivalents, Period Increase (Decrease) Investments in and Advances to Affiliates, Schedule of Investments [Text Block] Nonoperating Income (Expense) [Abstract] DocumentAndEntityInformationAbstract