Class of Stock [Axis] Class A Units [Member] Class B Units [Member] Legal Entity [Axis] National Beef Packing Company, LLC [Member] 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 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 Distributions and patronage notices payable Total current liabilities Long-term liabilities: Other liabilities Total long-term liabilities Total liabilities 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 income (expense): Interest income Interest expense Equity interest in net income of National Beef Packing Company, LLC Other, net Other income (expense) Comprehensive income Earnings 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: Comprehensive income Adjustments to reconcile net income to net cash used in operating activities: Equity in net income of National Beef Packing Company, LLC Changes in assets and liabilities: Due from affiliates 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: Distribution from National Beef Packing Company, LLC Net cash provided by investing activities Cash flows from financing activities: Change in overdraft balances Partnership distributions and redemptions Net cash used in financing activities Net decrease in cash Cash and cash equivalents at beginning of the period Cash and cash equivalents at end of the period Quarterly Financial Information Disclosure [Abstract] Interim Financial Statements Members' Equity [Abstract] Members' Capital Earnings Per Unit [Abstract] Earnings 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 Limited Liability Company (LLC) Members' Equity [Abstract] Schedule of Income (Loss) Per Unit Calculation Schedule of Operations for NBP Remaining membership interests in National Beef Packing Company, LLC (NBP) Beginning balance Allocation of comprehensive income for the twenty-five week period ended June 24, 2017 Member distributions Ending balance Schedule of Stock by Class [Table] Class of Stock [Line Items] Ownership percentage Basic and diluted earnings per unit Comprehensive income attributable to USPB unitholders (numerator) Weighted average outstanding units (denominator) Per unit amount Schedule of Investments [Table] Schedule of Investments [Line Items] Investment in National Beef Packing Net sales Cost of sales Selling, general, and administrative expenses Depreciation and amortization Total costs and expenses Operating income Other income (expense): Interest income Interest expense Other, net Income before taxes Income tax benefit (expense) Net income NBP's net income attributable to USPB Class A Units [Member] Class B Units [Member] 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. The amount of the total costs and expenses reported by an equity method investment of the entity. The amount of the depreciation and amortization reported by an equity method investment of the entity. The amount of income tax expense reported by an equity method investment of the entity. The amount of the interest expense reported by an equity method investment of the entity. The amount of the interest income reported by an equity method investment of the entity. The amount of net income (loss) before taxes reported by an equity method investment of the entity. The amount of the other income and expenses reported by an equity method investment of the entity. The amount of the selling, general and administrative expenses reported by an equity method investment of the entity. The entire tabular disclosure for beginning balance of members capital changes during the year and ending balance National Beef Packing Company, LLC [Member] The entire tabular disclosure for beginning balance of members capital changes during the year and ending balance. [Table Text Block] 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. Distributions and patronage notices payable Assets, Current Property, Plant and Equipment, Net Assets [Default Label] Liabilities, Current Liabilities, Noncurrent Liabilities Members' Equity Liabilities and Equity Costs and Expenses Operating Income (Loss) Interest Expense Other Operating Income (Expense), Net Weighted Average Limited Partnership Units Outstanding, Basic Weighted Average Limited Partnership Units Outstanding, Diluted Increase (Decrease) in Due from Affiliates, Current 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, Continuing Operations Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net Cash Provided by (Used in) Financing Activities, Continuing Operations Cash and Cash Equivalents, Period Increase (Decrease) Investments in and Advances to Affiliates, Schedule of Investments [Text Block] Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid Equity Method Investment, Summarized Financial Information, Revenue Equity Method Investment, Summarized Financial Information, Cost of Sales EquityMethodInvestmentSummarizedFinancialInformationSellingGeneralAdministrative EquityMethodInvestmentSummarizedFinancialInformationDepreciationAndAmortization EquityMethodInvestmentSummarizedFinancialInformationInterestIncome EquityMethodInvestmentSummarizedFinancialInformationInterestExpense EquityMethodInvestmentSummarizedFinancialInformationOtherIncomeExpense EquityMethodInvestmentSummarizedFinancialInformationIncomeTaxExpense