Document and Entity Information [Abstract] Document and Entity Information [Abstract] Statement [Table] Statement [Table] Class A Units [Member] Represents class A of limited liability company account. Class A units Class B Units [Member] Represents class B of limited liability company account. Class B units Statement [Line Items] Statement [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Trading Symbol Trading Symbol Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, At Carrying Value Cash and cash equivalents Cash and cash equivalents Cash and cash equivalents at beginning of the period Cash and cash equivalents at end of the period Accounts Receivable, Net, Current Accounts receivable, less allowance for returns and doubtful accounts of $3,200 and $3,368, respectively Accounts receivable, less allowance for returns and doubtful accounts of $3,200 and $3,368, respectively Due from Affiliate, Current Due from affiliates Other Receivables Other receivables Inventory, Net Inventories Inventories Other Assets, Current Other current assets Assets, Current Total current assets Total current assets Property, Plant and Equipment, Gross Property, plant, and equipment, at cost Property, plant, and equipment, at cost Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Property, Plant and Equipment, Net Net property, plant, and equipment Net property, plant, and equipment Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Goodwill Goodwill Goodwill, Total Goodwill, Beginning Balance Goodwill, Ending Balance Intangible Assets, Net (Excluding Goodwill) Other intangible assets, net of accumulated amortization of $18,757 and $ 18,230, respectively Other intangible assets, net of accumulated amortization of $18,757 and $ 18,230, respectively Other Assets, Noncurrent Other assets Other Assets, Noncurrent, Total Assets Total assets Total assets Liabilities and Equity [Abstract] Liabilities and Capital Shares and Equities Liabilities, Current [Abstract] Current liabilities: Long-Term Debt, Current Maturities Current installments of long-term debt Current installments of long-term debt Cattle Purchases Payable Cattle purchases payable. Cattle purchases payable Accounts Payable, Trade, Current Accounts payable - trade Due to Affiliate, Current Due to affiliates Employee-Related Liabilities, Current Accrued compensation and benefits Employee-related Liabilities, Current, Total Accrued Insurance, Current Accrued insurance Other Accrued Liabilities, Current Other accrued expenses and liabilities Distributions Payable Distributions payable Distributions payable Liabilities, Current Total current liabilities Total current liabilities Liabilities, Noncurrent [Abstract] Long-term liabilities: Long-Term Debt, Excluding Current Maturities Long-term debt, excluding current installments Long-term debt, excluding current installments Other Liabilities, Noncurrent Other liabilities Other Liabilities, Noncurrent, Total Liabilities, Noncurrent Total long-term liabilities Total long-term liabilities Liabilities Total liabilities Total liabilities Capital Subject To Redemption Non-controlling interest in NBP, Capital Subject to Redemption Non-controlling interest in NBP Non-controlling interest in NBP Capital shares and equities: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Members Capital The amount of ownership interest of different classes of members in the limited liability company. Members' capital, 735,385 Class A units and 755,385 Class B units authorized, issued and outstanding Patronage Notices Patronage notices The amount of the Patronage Notices. Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Accumulated other comprehensive income Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Members Capital And Patronage Notices Total of all capital shares and equities (deficit) items, which are attributable to the parent. Excludes the amount of capital shares and equities which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Total capital shares and equities attributable to USPB Total capital shares and equities attributable to USPB Non Controlling Interest In Subsidiary Total of all capital shares and equities which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). Non-controlling interest in Kansas City Steak Company, LLC Capital Shares And Equities Total of all capital shares and equities (deficit) items, which are attributable to the parent and noncontrolling interests. This excludes temporary equity and is sometimes called permanent equity. Total Capital Shares and Equities Total Capital Shares and Equities Liabilities And Capital Shares And Equities Total of all Liabilities and Capital Shares and Equities items, including the portion of equity attributable to noncontrolling interests. Total liabilities, noncontrolling interest in NBP and capital shares and equities Total liabilities, noncontrolling interest in NBP and capital shares and equities Schedule Of Limited Partners Capital Account By Class [Table] Schedule of Limited Partners' Capital Account by Class [Table] Limited Partners Capital Account [Line Items] Limited Partners' Capital Account [Line Items] Allowance For Doubtful Accounts Receivable, Current Allowance for returns and doubtful accounts for accounts receivable (in dollars) Allowance for Doubtful Accounts Receivable, Current, Beginning Balance Allowance for Doubtful Accounts Receivable, Current, Ending Balance Finite-Lived Intangible Assets, Accumulated Amortization Accumulated amortization on Other intangible assets (in dollars) Limited liability Company' Capital Account, Units Authorized The number of limited liability company units authorized to be issued. Members' capital, shares authorized Limited liability Company' Capital Account, Units Issued The number of limited liability company units issued. Members' capital, shares issued Limited liability Company' Capital Account, Units Outstanding The number of limited liability company units outstanding. Members' capital, shares outstanding Income Statement [Abstract] Income Statement [Abstract] Revenue, Net Net sales Net sales Costs and Expenses [Abstract] Costs and expenses: Cost Of Goods and Services Sold Cost of sales Cost of sales Selling, General and Administrative Expense Selling, general, and administrative expenses Selling, general, and administrative expenses Depreciation, Depletion and Amortization Depreciation and amortization Depreciation and amortization Costs and Expenses Total costs and expenses Total costs and expenses Operating Income (Loss) Operating income Operating income Nonoperating Income (Expense) [Abstract] Other income (expense): Investment Income, Interest Interest income Interest Expense Interest expense Interest expense Interest expense Other Nonoperating Income (Expense) Other, net Other, net Income (Loss) From Continuing Operations Before Income Taxes, Extraordinary Items, Noncontrolling Interest Income before taxes Income before taxes Income Tax Expense (Benefit) Income tax expense Income tax expense Income tax expense Net Income (Loss), Including Portion Attributable To Noncontrolling Interest Net income Net income Net Income (Loss) Attributable To Noncontrolling Interest [Abstract] Less: Net income attibutable to noncontrolling interest in: Net Income (Loss) Attributable to Noncontrolling Interest One The portion of net Income or Loss attributable to the noncontrolling interest in Kansas City Steak Company, LLC. Kansas City Steak Company, LLC Kansas City Steak Company, LLC Net Income (Loss) Attributable to Noncontrolling Interest Two The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. National Beef Packing Company, LLC National Beef Packing Company, LLC Net Income (Loss) Attributable To Parent Net income attributable to U.S. Premium Beef, LLC Net income attributable to U.S. Premium Beef, LLC Earnings Per Unit [Abstract] Earnings per unit: Earnings Per Limited Liability Company Unit [Abstract] Basic Net Income (Loss), Per Outstanding Limited Liability Company Unit, Basic Net income (loss) allocated to each outstanding limited liability company unit. Earnings per unit (in dollars per share) Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Total Net Income (Loss), Per Outstanding Limited Liability Company Unit, Diluted [Abstract] Diluted Net Income (Loss), Per Outstanding Limited Liability Company Unit, Diluted Net income or loss allocated to each limited liability company unit outstanding during the reporting period and each unit that would have been outstanding assuming the issuance of limited liability company units for all dilutive potential units outstanding during the reporting period. Earnings per unit (in dollars per share) Class A units (in dollars per share) Weighted Average Number of Units Outstanding [Abstract] Outstanding weighted-average Class A and Class B units: Weighted Average Number of Units Outstanding, Basic [Abstract] Basic Weighted Average Limited Liability Company Units Outstanding, Basic The average number of limited liability company units issued and outstanding that are used in calculating basic earnings per unit. Outstanding weighted-average shares (in shares) Weighted Average Number of Units Outstanding, Diluted [Abstract] Diluted Weighted Average Limited Liability Company Units Outstanding Diluted The average number of limited liability company units issued and outstanding that are used in calculating diluted earnings per unit. Outstanding weighted-average shares (in shares) Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Net Cash Provided By (Used In) Operating Activities, Continuing Operations [Abstract] Cash flows from operating activities: Adjustments To Reconcile Net Income (Loss) To Cash Provided By (Used In) Operating Activities [Abstract] Adjustments to reconcile net income to net cash (used in) provided by operating activities: Gain (Loss) On Sale Of Property Plant Equipment Gain on disposal of property, plant, and equipment Gain on disposal of property, plant, and equipment Gain on disposal of property, plant, and equipment Amortized Debt Issuance Expense Amortizaton of debt issuance costs Increase (Decrease) In Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) In Accounts Receivable Accounts receivable Accounts receivable Increase (Decrease) In Due From Affiliates, Current Due from affiliates Due from affiliates Increase (Decrease) In Other Receivables Other receivables Other receivables Increase (Decrease) In Inventories Inventories Inventories Inventories Increase (Decrease) In Other Operating Assets Other assets Other assets Other assets Increase (Decrease) In Cattle Purchases Payable Cattle purchases payable The increase (decrease) during the reporting period in Cattle purchases payable. Increase (Decrease) In Accounts Payable, Trade Accounts payable Increase (Decrease) In Due To Affiliates, Current Due to affiliates Increase (Decrease) In Employee Related Liabilities Accrued compensation and benefits Accrued compensation and benefits Increase (Decrease) In Accrued Insurance Accrued insurance The increase (decrease) during the reporting period in Accrued insurance. Increase (Decrease) In Other Accrued Liabilities Other accrued expenses and liabilities Net Cash Provided By (Used In) Operating Activities, Continuing Operations Net cash (used in) provided by operating activities Net cash (used in) provided by operating activities Net Cash Provided By (Used In) Investing Activities, Continuing Operations [Abstract] Cash flows from investing activities: Payments To Acquire Property, Plant, and Equipment Capital expenditures, including interest capitalized Capital expenditures, including interest capitalized Capital expenditures, including interest capitalized Proceeds From Sale Of Property, Plant, and Equipment Proceeds from sale of property, plant, and equipment Proceeds from sale of property, plant, and equipment Net Cash Provided By (Used In) Investing Activities, Continuing Operations Net cash used in investing activities Net cash used in investing activities Net Cash Provided By (Used In) Financing Activities, Continuing Operations [Abstract] Cash flows from financing activities: Proceeds From (Repayments Of) Lines Of Credit Net receipts under revolving credit lines Proceeds from (Repayments of) Lines of Credit, Total Repayments Of Notes Payable Payments of term notes payable Payments of term notes payable Repayments of Other Debt and Capital Lease Obligations The cash outflow during the period from the repayment of other debt and payment of capital lease obligations. Repayments of other indebtedness / capital leases Repayments of other indebtedness / capital leases Payment Of Patronage Notices Payments of patronage notices The cash outflow for patronage notices. Payments of patronage notices Proceeds From (Repayments Of) Bank Overdrafts Change in overdraft balances Distribution Made to Member or Limited Partner, Cash Distributions Paid Distributions to noncontrolling interests in National Beef Packing Company, LLC Distributions to noncontrolling interests in National Beef Packing Company, LLC Net Cash Provided By (Used In) Financing Activities, Continuing Operations Net cash provided by financing activities Net cash provided by financing activities Effect Of Exchange Rate On Cash and Cash Equivalents, Continuing Operations Effect of exchange rate changes on cash Cash and Cash Equivalents, Period Increase (Decrease) Net (decrease) increase in cash Net (decrease) increase in cash Supplemental Cash Flow Information [Abstract] Supplemental cash disclosures: Interest Paid Cash paid during the period for interest Income Taxes Paid Cash paid during the period for taxes, net of refunds Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Supplemental non-cash disclosures of investing and financing activities: Assets Acquired Through Capital Lease Assets acquired through capital lease The amount of Assets acquired through capital lease. Interim Financial Statements [Abstract] Interim Financial Statements [Abstract] Basis Of Accounting [Text Block] Interim Financial Statements New Accounting Pronouncements [Abstract] New Accounting Pronouncements [Abstract] Description Of New Accounting Pronouncements Not Yet Adopted [Text Block] New Accounting Pronouncements Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Inventory Disclosure [Text Block] Inventories Comprehensive Income Attributable To Uspb [Abstract] Comprehensive Income Attributable To Uspb [Abstract] Comprehensive Income (Loss) Note [Text Block] Comprehensive Income Attributable to USPB Noncontrolling Interests In Nbp [Abstract] Non-Controlling Interests In Nbp [Abstract] Capital Subject To Redemption Disclosure [Text Block] Disclosure related to non-controlling interest in NBP, capital subject to redemption. Non-controlling Interests In NBP Loss Contingency [Abstract] Loss Contingency [Abstract] Contingencies Disclosure [Text Block] Contingencies Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Fair Value Disclosures [Text Block] Fair Value Measurements Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Text Block] Disclosure about Derivative Instruments and Hedging Activities Earnings Per Share [Text Block] Income Attributable to USPB Per Unit Subsequent Events [Abstract] Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Events Cash, Cash Equivalents, and Short-term Investments [Abstract] Cash and Cash Equivalents, at Carrying Value [Abstract] Receivables, Net, Current [Abstract] Accounts, Notes, Loans and Financing Receivable, Net, Current [Abstract] Accounts Receivable, Net, Current [Abstract] Inventory, Net [Abstract] Prepaid Expense and Other Assets, Current [Abstract] Assets, Noncurrent [Abstract] Property, Plant and Equipment, Net [Abstract] Property, Plant and Equipment, Gross [Abstract] Intangible Assets, Net (Excluding Goodwill) [Abstract] Prepaid Expense and Other Assets, Noncurrent [Abstract] Liabilities [Abstract] Accounts Payable and Accrued Liabilities, Current [Abstract] Debt, Current [Abstract] Long-term Debt and Capital Lease Obligations, Current [Abstract] Long-term Debt, Current Maturities [Abstract] Long-term Debt and Capital Lease Obligations [Abstract] Long-term Debt, Excluding Current Maturities [Abstract] Liabilities, Other than Long-term Debt, Noncurrent [Abstract] Temporary Equity [Abstract] Redeemable Noncontrolling Interest [Abstract] Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract] Stockholders' Equity Attributable to Parent [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Partners' Capital [Abstract] Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Net Income (Loss) Attributable to Parent [Abstract] Net Income (Loss), Including Portion Attributable to Noncontrolling Interest [Abstract] Income (Loss) from Operations before Extraordinary Items [Abstract] Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest [Abstract] Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract] Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract] Operating Income (Loss) [Abstract] Revenues [Abstract] Revenue, Net [Abstract] Cost of Revenue [Abstract] Cost of Goods and Services Sold [Abstract] Operating Expenses [Abstract] Selling, General and Administrative Expense [Abstract] Investment Income, Nonoperating [Abstract] Investment Income, Net [Abstract] Investment Income, Interest and Dividend [Abstract] Other Nonoperating Income (Expense) [Abstract] Interest and Debt Expense [Abstract] Interest Expense [Abstract]