0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Statements of Operations link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Statements of Changes in Equity link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - Description of Business and Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Accounts Receivable—Third Parties link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Inventories link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Property, Plant and Equipment link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Deferred Charges and Other Assets link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Distributions and Net Income Per Limited Partner Unit link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Partners' Equity link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Related Party Transactions link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Long-Term Debt Payable to Westlake link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Supplemental Information link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Description of Business and Basis of Presentation (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Accounts Receivable—Third Parties (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Inventories (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Distributions and Net Income Per Limited Partner Unit (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Related Party Transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Long-Term Debt Payable to Westlake (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Description of Business and Basis of Presentation (Details) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Accounts Receivable—Third Parties (Schedule Of Accounts Receivable) (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Inventories (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Deferred Charges and Other Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Distributions and Net Income Per Limited Partner Unit (Basic and Diluted Income Per Limited Partner Unit) (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Distributions and Net Income Per Limited Partner Unit (Distributions Declared) (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Distributions and Net Income Per Limited Partner Unit (Distribution Per Common Unit) (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Partners' Equity (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Related Party Transactions (Sales to Related Parties) (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Related Party Transactions (Cost of Sales from Related Parties) (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Related Party Transactions (Services from Related Parties Included in SG&A Expenses) (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Related Party Transactions (Goods and Services Purchased from Westlake and Capitalized as Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Related Party Transactions (Accounts Receivable from and Accounts Payable to Related Parties) (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Related Party Transactions (General) (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Related Party Transactions (Debt Payable to Related Parties) (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Related Party Transactions (Major Customer and Concentration Risk) (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Long-Term Debt Payable to Westlake (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Fair Value Measurements (Summary of Carrying and Fair Values of Long Term Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Supplemental Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink