10-K Filing

Westlake Chemical Partners LP CIK: 1604665 FY 2024

Filing Information

Form Type	10-K
Accession Number	`0001604665-25-000011`
Period End Date	20241231
Filing Date	20250305
Fiscal Year	2024
Fiscal Period	FY
XBRL Instance	wlkp-20241231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 84 Income Statement 78 Cash Flow Statement 148 Stockholders Equity 40

Balance Sheet 84 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$58.32M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$58.32M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$58.62M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$58.62M	USD	Point-in-time
Receivable under the Investment Management AgreementWestlake Corporation ("Westlake")	`ReceivablesunderInvestmentManagementAgreementswithRelatedPartiesCurrent`	$94.44M	USD	Point-in-time
Receivable under the Investment Management AgreementWestlake Corporation ("Westlake")	`ReceivablesunderInvestmentManagementAgreementswithRelatedPartiesCurrent`	$94.44M	USD	Point-in-time
Receivable under the Investment Management AgreementWestlake Corporation ("Westlake")	`ReceivablesunderInvestmentManagementAgreementswithRelatedPartiesCurrent`	$134.56M	USD	Point-in-time
Receivable under the Investment Management AgreementWestlake Corporation ("Westlake")	`ReceivablesunderInvestmentManagementAgreementswithRelatedPartiesCurrent`	$134.56M	USD	Point-in-time
Accounts receivable, netthird parties	`ReceivablesNetCurrent`	$18.70M	USD	Point-in-time
Accounts receivable, netthird parties	`ReceivablesNetCurrent`	$18.70M	USD	Point-in-time
Accounts receivable, netthird parties	`ReceivablesNetCurrent`	$11.58M	USD	Point-in-time
Accounts receivable, netthird parties	`ReceivablesNetCurrent`	$11.58M	USD	Point-in-time
Inventories	`InventoryNet`	$4.06M	USD	Point-in-time
Inventories	`InventoryNet`	$4.06M	USD	Point-in-time
Inventories	`InventoryNet`	$4.43M	USD	Point-in-time
Inventories	`InventoryNet`	$4.43M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$444.00K	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$444.00K	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$442.00K	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$442.00K	USD	Point-in-time
Total current assets	`AssetsCurrent`	$240.93M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$240.93M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$226.20M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$226.20M	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$943.84M	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$943.84M	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$903.59M	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$903.59M	USD	Point-in-time
Goodwill	`Goodwill`	$5.81M	USD	Point-in-time
Goodwill	`Goodwill`	$5.81M	USD	Point-in-time
Goodwill	`Goodwill`	$5.81M	USD	Point-in-time
Goodwill	`Goodwill`	$5.81M	USD	Point-in-time
Deferred charges and other assets, net	`DeferredCostsAndOtherAssets`	$140.98M	USD	Point-in-time
Deferred charges and other assets, net	`DeferredCostsAndOtherAssets`	$140.98M	USD	Point-in-time
Deferred charges and other assets, net	`DeferredCostsAndOtherAssets`	$137.63M	USD	Point-in-time
Deferred charges and other assets, net	`DeferredCostsAndOtherAssets`	$137.63M	USD	Point-in-time
Total assets	`Assets`	$1.29B	USD	Point-in-time
Total assets	`Assets`	$1.29B	USD	Point-in-time
Total assets	`Assets`	$1.32B	USD	Point-in-time
Total assets	`Assets`	$1.32B	USD	Point-in-time
Accrued and other liabilities	`AccruedLiabilitiesCurrent`	$16.92M	USD	Point-in-time
Accrued and other liabilities	`AccruedLiabilitiesCurrent`	$16.92M	USD	Point-in-time
Accrued and other liabilities	`AccruedLiabilitiesCurrent`	$24.98M	USD	Point-in-time
Accrued and other liabilities	`AccruedLiabilitiesCurrent`	$24.98M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$55.37M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$55.37M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$56.34M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$56.34M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.55M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.55M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.63M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.63M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$2.95M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$2.95M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$2.05M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$2.05M	USD	Point-in-time
Total liabilities	`Liabilities`	$460.59M	USD	Point-in-time
Total liabilities	`Liabilities`	$460.59M	USD	Point-in-time
Total liabilities	`Liabilities`	$458.64M	USD	Point-in-time
Total liabilities	`Liabilities`	$458.64M	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Total Westlake Chemical Partners LP partners' capital	`PartnersCapital`	$276.13M	USD	Point-in-time
Total Westlake Chemical Partners LP partners' capital	`PartnersCapital`	$276.13M	USD	Point-in-time
Total Westlake Chemical Partners LP partners' capital	`PartnersCapital`	$279.93M	USD	Point-in-time
Total Westlake Chemical Partners LP partners' capital	`PartnersCapital`	$279.93M	USD	Point-in-time
Noncontrolling interest in Westlake Chemical OpCo LP ("OpCo")	`MinorityInterestInLimitedPartnerships`	$576.32M	USD	Point-in-time
Noncontrolling interest in Westlake Chemical OpCo LP ("OpCo")	`MinorityInterestInLimitedPartnerships`	$576.32M	USD	Point-in-time
Noncontrolling interest in Westlake Chemical OpCo LP ("OpCo")	`MinorityInterestInLimitedPartnerships`	$553.18M	USD	Point-in-time
Noncontrolling interest in Westlake Chemical OpCo LP ("OpCo")	`MinorityInterestInLimitedPartnerships`	$553.18M	USD	Point-in-time
Total equity	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$829.31M	USD	Point-in-time
Total equity	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$829.31M	USD	Point-in-time
Total equity	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$972.70M	USD	Point-in-time
Total equity	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$972.70M	USD	Point-in-time
Total equity	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$903.71M	USD	Point-in-time
Total equity	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$903.71M	USD	Point-in-time
Total equity	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$856.25M	USD	Point-in-time
Total equity	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$856.25M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$1.32B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$1.32B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$1.29B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$1.29B	USD	Point-in-time

Income Statement 78 line items

Line Item	Tag	Value	Unit	Period
Total net sales	`Revenues`	$1.59B	USD	Annual
Total net sales	`Revenues`	$1.59B	USD	Annual
Total net sales	`Revenues`	$1.19B	USD	Annual
Total net sales	`Revenues`	$1.19B	USD	Annual
Total net sales	`Revenues`	$1.14B	USD	Annual
Total net sales	`Revenues`	$1.14B	USD	Annual
Cost of sales	`CostOfGoodsAndServicesSold`	$803.33M	USD	Annual
Cost of sales	`CostOfGoodsAndServicesSold`	$803.33M	USD	Annual
Cost of sales	`CostOfGoodsAndServicesSold`	$716.96M	USD	Annual
Cost of sales	`CostOfGoodsAndServicesSold`	$716.96M	USD	Annual
Cost of sales	`CostOfGoodsAndServicesSold`	$1.22B	USD	Annual
Cost of sales	`CostOfGoodsAndServicesSold`	$1.22B	USD	Annual
Gross profit	`GrossProfit`	$418.94M	USD	Annual
Gross profit	`GrossProfit`	$418.94M	USD	Annual
Gross profit	`GrossProfit`	$387.46M	USD	Annual
Gross profit	`GrossProfit`	$387.46M	USD	Annual
Gross profit	`GrossProfit`	$377.37M	USD	Annual
Gross profit	`GrossProfit`	$377.37M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$28.50M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$28.50M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$29.68M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$29.68M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$29.75M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$29.75M	USD	Annual
Income from operations	`OperatingIncomeLoss`	$357.71M	USD	Annual
Income from operations	`OperatingIncomeLoss`	$357.71M	USD	Annual
Income from operations	`OperatingIncomeLoss`	$347.69M	USD	Annual
Income from operations	`OperatingIncomeLoss`	$347.69M	USD	Annual
Income from operations	`OperatingIncomeLoss`	$390.44M	USD	Annual
Income from operations	`OperatingIncomeLoss`	$390.44M	USD	Annual
Interest expenseWestlake	`InterestExpenseNonoperating`	$26.50M	USD	Annual
Interest expenseWestlake	`InterestExpenseNonoperating`	$26.50M	USD	Annual
Interest expenseWestlake	`InterestExpenseNonoperating`	$13.41M	USD	Annual
Interest expenseWestlake	`InterestExpenseNonoperating`	$13.41M	USD	Annual
Interest expenseWestlake	`InterestExpenseNonoperating`	$25.70M	USD	Annual
Interest expenseWestlake	`InterestExpenseNonoperating`	$25.70M	USD	Annual
Other income, net	`NonoperatingIncomeExpense`	$1.57M	USD	Annual
Other income, net	`NonoperatingIncomeExpense`	$1.57M	USD	Annual
Other income, net	`NonoperatingIncomeExpense`	$5.25M	USD	Annual
Other income, net	`NonoperatingIncomeExpense`	$5.25M	USD	Annual
Other income, net	`NonoperatingIncomeExpense`	$4.23M	USD	Annual
Other income, net	`NonoperatingIncomeExpense`	$4.23M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$335.85M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$335.85M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$369.99M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$369.99M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$335.44M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$335.44M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$1.02M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$1.02M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$835.00K	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$835.00K	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$813.00K	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$813.00K	USD	Annual
Net income	`ProfitLoss`	$369.16M	USD	Annual
Net income	`ProfitLoss`	$369.16M	USD	Annual
Net income	`ProfitLoss`	$334.63M	USD	Annual
Net income	`ProfitLoss`	$334.63M	USD	Annual
Net income	`ProfitLoss`	$334.83M	USD	Annual
Net income	`ProfitLoss`	$334.83M	USD	Annual
Less: Net income attributable to noncontrolling interest in OpCo	`NetIncomeLossAttributableToNoncontrollingInterest`	$280.34M	USD	Annual
Less: Net income attributable to noncontrolling interest in OpCo	`NetIncomeLossAttributableToNoncontrollingInterest`	$280.34M	USD	Annual
Less: Net income attributable to noncontrolling interest in OpCo	`NetIncomeLossAttributableToNoncontrollingInterest`	$270.66M	USD	Annual
Less: Net income attributable to noncontrolling interest in OpCo	`NetIncomeLossAttributableToNoncontrollingInterest`	$270.66M	USD	Annual
Less: Net income attributable to noncontrolling interest in OpCo	`NetIncomeLossAttributableToNoncontrollingInterest`	$306.77M	USD	Annual
Less: Net income attributable to noncontrolling interest in OpCo	`NetIncomeLossAttributableToNoncontrollingInterest`	$306.77M	USD	Annual
Net income attributable to Westlake Chemical Partners LP and limited partners' interest in net income	`NetIncomeLoss`	$64.17M	USD	Annual
Net income attributable to Westlake Chemical Partners LP and limited partners' interest in net income	`NetIncomeLoss`	$64.17M	USD	Annual
Net income attributable to Westlake Chemical Partners LP and limited partners' interest in net income	`NetIncomeLoss`	$54.28M	USD	Annual
Net income attributable to Westlake Chemical Partners LP and limited partners' interest in net income	`NetIncomeLoss`	$54.28M	USD	Annual
Net income attributable to Westlake Chemical Partners LP and limited partners' interest in net income	`NetIncomeLoss`	$62.39M	USD	Annual
Net income attributable to Westlake Chemical Partners LP and limited partners' interest in net income	`NetIncomeLoss`	$62.39M	USD	Annual
Weighted average limited partner units outstanding (basic and diluted)	`WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted`	35.22M	shares	Annual
Weighted average limited partner units outstanding (basic and diluted)	`WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted`	35.22M	shares	Annual
Weighted average limited partner units outstanding (basic and diluted)	`WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted`	35.23M	shares	Annual
Weighted average limited partner units outstanding (basic and diluted)	`WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted`	35.23M	shares	Annual
Weighted average limited partner units outstanding (basic and diluted)	`WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted`	35.22M	shares	Annual
Weighted average limited partner units outstanding (basic and diluted)	`WeightedAverageNumberOfLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasicAndDiluted`	35.22M	shares	Annual

Cash Flow Statement 148 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$369.16M	USD	Annual
Net income	`ProfitLoss`	$369.16M	USD	Annual
Net income	`ProfitLoss`	$334.63M	USD	Annual
Net income	`ProfitLoss`	$334.63M	USD	Annual
Net income	`ProfitLoss`	$334.83M	USD	Annual
Net income	`ProfitLoss`	$334.83M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$111.90M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$111.90M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$121.07M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$121.07M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$110.20M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$110.20M	USD	Annual
Loss from disposition of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-2.35M	USD	Annual
Loss from disposition of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-2.35M	USD	Annual
Loss from disposition of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-4.93M	USD	Annual
Loss from disposition of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-4.93M	USD	Annual
Loss from disposition of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-4.71M	USD	Annual
Loss from disposition of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-4.71M	USD	Annual
Other losses (gains), net	`OtherNoncashIncomeExpense`	$-356.00K	USD	Annual
Other losses (gains), net	`OtherNoncashIncomeExpense`	$-356.00K	USD	Annual
Other losses (gains), net	`OtherNoncashIncomeExpense`	$27.00K	USD	Annual
Other losses (gains), net	`OtherNoncashIncomeExpense`	$27.00K	USD	Annual
Other losses (gains), net	`OtherNoncashIncomeExpense`	$182.00K	USD	Annual
Other losses (gains), net	`OtherNoncashIncomeExpense`	$182.00K	USD	Annual
Accounts receivablethird parties	`IncreaseDecreaseInAccountsAndOtherReceivables`	$14.44M	USD	Annual
Accounts receivablethird parties	`IncreaseDecreaseInAccountsAndOtherReceivables`	$14.44M	USD	Annual
Accounts receivablethird parties	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-7.22M	USD	Annual
Accounts receivablethird parties	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-7.22M	USD	Annual
Accounts receivablethird parties	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-1.33M	USD	Annual
Accounts receivablethird parties	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-1.33M	USD	Annual
Net accounts receivableWestlake	`IncreaseDecreaseInAccountsReceivableRelatedParties`	$-27.33M	USD	Annual
Net accounts receivableWestlake	`IncreaseDecreaseInAccountsReceivableRelatedParties`	$-27.33M	USD	Annual
Net accounts receivableWestlake	`IncreaseDecreaseInAccountsReceivableRelatedParties`	$-74.20M	USD	Annual
Net accounts receivableWestlake	`IncreaseDecreaseInAccountsReceivableRelatedParties`	$-74.20M	USD	Annual
Net accounts receivableWestlake	`IncreaseDecreaseInAccountsReceivableRelatedParties`	$-25.74M	USD	Annual
Net accounts receivableWestlake	`IncreaseDecreaseInAccountsReceivableRelatedParties`	$-25.74M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-4.18M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-4.18M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-374.00K	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-374.00K	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-283.00K	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-283.00K	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$2.00K	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$2.00K	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-91.00K	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-91.00K	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$137.00K	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$137.00K	USD	Annual
Accounts payablethird parties	`IncreaseDecreaseInAccountsPayable`	$1.57M	USD	Annual
Accounts payablethird parties	`IncreaseDecreaseInAccountsPayable`	$1.57M	USD	Annual
Accounts payablethird parties	`IncreaseDecreaseInAccountsPayable`	$-2.69M	USD	Annual
Accounts payablethird parties	`IncreaseDecreaseInAccountsPayable`	$-2.69M	USD	Annual
Accounts payablethird parties	`IncreaseDecreaseInAccountsPayable`	$-17.00M	USD	Annual
Accounts payablethird parties	`IncreaseDecreaseInAccountsPayable`	$-17.00M	USD	Annual
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$4.03M	USD	Annual
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$4.03M	USD	Annual
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-37.53M	USD	Annual
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-37.53M	USD	Annual
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-5.82M	USD	Annual
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-5.82M	USD	Annual
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$23.04M	USD	Annual
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$23.04M	USD	Annual
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$6.73M	USD	Annual
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$6.73M	USD	Annual
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$32.14M	USD	Annual
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$32.14M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$485.00M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$485.00M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$463.74M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$463.74M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$452.00M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$452.00M	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$46.82M	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$46.82M	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$48.97M	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$48.97M	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$54.12M	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$54.12M	USD	Annual
Investments with Westlake under the Investment Management Agreement	`InvestmentswithWestlakeundertheInvestmentManagementAgreement`	$319.88M	USD	Annual
Investments with Westlake under the Investment Management Agreement	`InvestmentswithWestlakeundertheInvestmentManagementAgreement`	$319.88M	USD	Annual
Investments with Westlake under the Investment Management Agreement	`InvestmentswithWestlakeundertheInvestmentManagementAgreement`	$174.12M	USD	Annual
Investments with Westlake under the Investment Management Agreement	`InvestmentswithWestlakeundertheInvestmentManagementAgreement`	$174.12M	USD	Annual
Investments with Westlake under the Investment Management Agreement	`InvestmentswithWestlakeundertheInvestmentManagementAgreement`	$40.00M	USD	Annual
Investments with Westlake under the Investment Management Agreement	`InvestmentswithWestlakeundertheInvestmentManagementAgreement`	$40.00M	USD	Annual
Maturities of investments with Westlake under the Investment Management Agreement	`MaturitiesofinvestmentswithWestlakeundertheInvestmentManagementAgreement`	-	USD	Annual
Maturities of investments with Westlake under the Investment Management Agreement	`MaturitiesofinvestmentswithWestlakeundertheInvestmentManagementAgreement`	-	USD	Annual
Maturities of investments with Westlake under the Investment Management Agreement	`MaturitiesofinvestmentswithWestlakeundertheInvestmentManagementAgreement`	$362.00M	USD	Annual
Maturities of investments with Westlake under the Investment Management Agreement	`MaturitiesofinvestmentswithWestlakeundertheInvestmentManagementAgreement`	$362.00M	USD	Annual
Maturities of investments with Westlake under the Investment Management Agreement	`MaturitiesofinvestmentswithWestlakeundertheInvestmentManagementAgreement`	$145.00M	USD	Annual
Maturities of investments with Westlake under the Investment Management Agreement	`MaturitiesofinvestmentswithWestlakeundertheInvestmentManagementAgreement`	$145.00M	USD	Annual
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-88.97M	USD	Annual
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-88.97M	USD	Annual
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-12.00M	USD	Annual
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-12.00M	USD	Annual
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-75.94M	USD	Annual
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-75.94M	USD	Annual
Proceeds from debt payable to Westlake	`ProceedsFromRelatedPartyDebt`	$32.00M	USD	Annual
Proceeds from debt payable to Westlake	`ProceedsFromRelatedPartyDebt`	$32.00M	USD	Annual
Proceeds from debt payable to Westlake	`ProceedsFromRelatedPartyDebt`	$209.25M	USD	Annual
Proceeds from debt payable to Westlake	`ProceedsFromRelatedPartyDebt`	$209.25M	USD	Annual
Proceeds from debt payable to Westlake	`ProceedsFromRelatedPartyDebt`	$219.00M	USD	Annual
Proceeds from debt payable to Westlake	`ProceedsFromRelatedPartyDebt`	$219.00M	USD	Annual
Repayment of debt payable to Westlake	`RepaymentsOfRelatedPartyDebt`	$32.00M	USD	Annual
Repayment of debt payable to Westlake	`RepaymentsOfRelatedPartyDebt`	$32.00M	USD	Annual
Repayment of debt payable to Westlake	`RepaymentsOfRelatedPartyDebt`	$219.00M	USD	Annual
Repayment of debt payable to Westlake	`RepaymentsOfRelatedPartyDebt`	$219.00M	USD	Annual
Repayment of debt payable to Westlake	`RepaymentsOfRelatedPartyDebt`	$209.25M	USD	Annual
Repayment of debt payable to Westlake	`RepaymentsOfRelatedPartyDebt`	$209.25M	USD	Annual
Distributions to noncontrolling interest retained in OpCo by Westlake	`PaymentsOfDividendsMinorityInterest`	$315.81M	USD	Annual
Distributions to noncontrolling interest retained in OpCo by Westlake	`PaymentsOfDividendsMinorityInterest`	$315.81M	USD	Annual
Distributions to noncontrolling interest retained in OpCo by Westlake	`PaymentsOfDividendsMinorityInterest`	$337.60M	USD	Annual
Distributions to noncontrolling interest retained in OpCo by Westlake	`PaymentsOfDividendsMinorityInterest`	$337.60M	USD	Annual
Distributions to noncontrolling interest retained in OpCo by Westlake	`PaymentsOfDividendsMinorityInterest`	$329.90M	USD	Annual
Distributions to noncontrolling interest retained in OpCo by Westlake	`PaymentsOfDividendsMinorityInterest`	$329.90M	USD	Annual
Distributions to unitholders	`DistributionMadeToLimitedPartnerCashDistributionsPaid`	$66.44M	USD	Annual
Distributions to unitholders	`DistributionMadeToLimitedPartnerCashDistributionsPaid`	$66.44M	USD	Annual
Distributions to unitholders	`DistributionMadeToLimitedPartnerCashDistributionsPaid`	$66.41M	USD	Annual
Distributions to unitholders	`DistributionMadeToLimitedPartnerCashDistributionsPaid`	$66.41M	USD	Annual
Distributions to unitholders	`DistributionMadeToLimitedPartnerCashDistributionsPaid`	$66.42M	USD	Annual
Distributions to unitholders	`DistributionMadeToLimitedPartnerCashDistributionsPaid`	$66.42M	USD	Annual
Net cash used for financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-382.23M	USD	Annual
Net cash used for financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-382.23M	USD	Annual
Net cash used for financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-396.33M	USD	Annual
Net cash used for financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-396.33M	USD	Annual
Net cash used for financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-404.01M	USD	Annual
Net cash used for financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-404.01M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-6.16M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-6.16M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$47.73M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$47.73M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-303.00K	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-303.00K	USD	Annual
Cash and cash equivalents at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$17.06M	USD	Point-in-time
Cash and cash equivalents at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$17.06M	USD	Point-in-time
Cash and cash equivalents at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$58.32M	USD	Point-in-time
Cash and cash equivalents at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$58.32M	USD	Point-in-time
Cash and cash equivalents at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$58.62M	USD	Point-in-time
Cash and cash equivalents at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$58.62M	USD	Point-in-time
Cash and cash equivalents at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$64.78M	USD	Point-in-time
Cash and cash equivalents at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$64.78M	USD	Point-in-time
Cash and cash equivalents at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$17.06M	USD	Point-in-time
Cash and cash equivalents at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$17.06M	USD	Point-in-time
Cash and cash equivalents at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$58.32M	USD	Point-in-time
Cash and cash equivalents at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$58.32M	USD	Point-in-time
Cash and cash equivalents at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$58.62M	USD	Point-in-time
Cash and cash equivalents at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$58.62M	USD	Point-in-time
Cash and cash equivalents at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$64.78M	USD	Point-in-time
Cash and cash equivalents at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$64.78M	USD	Point-in-time

Stockholders Equity 40 line items

Line Item	Tag	Value	Unit	Period
Equity, beginning balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$829.31M	USD	Point-in-time
Equity, beginning balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$829.31M	USD	Point-in-time
Equity, beginning balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$972.70M	USD	Point-in-time
Equity, beginning balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$972.70M	USD	Point-in-time
Equity, beginning balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$903.71M	USD	Point-in-time
Equity, beginning balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$903.71M	USD	Point-in-time
Equity, beginning balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$856.25M	USD	Point-in-time
Equity, beginning balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$856.25M	USD	Point-in-time
Net income	`ProfitLoss`	$369.16M	USD	Annual
Net income	`ProfitLoss`	$369.16M	USD	Annual
Net income	`ProfitLoss`	$334.63M	USD	Annual
Net income	`ProfitLoss`	$334.63M	USD	Annual
Net income	`ProfitLoss`	$334.83M	USD	Annual
Net income	`ProfitLoss`	$334.83M	USD	Annual
Units issued for vested phantom units	`StockIssuedDuringPeriodValueOther`	$190.00K	USD	Annual
Units issued for vested phantom units	`StockIssuedDuringPeriodValueOther`	$190.00K	USD	Annual
Units issued for vested phantom units	`StockIssuedDuringPeriodValueOther`	$141.00K	USD	Annual
Units issued for vested phantom units	`StockIssuedDuringPeriodValueOther`	$141.00K	USD	Annual
Units issued for vested phantom units	`StockIssuedDuringPeriodValueOther`	$238.00K	USD	Annual
Units issued for vested phantom units	`StockIssuedDuringPeriodValueOther`	$238.00K	USD	Annual
Distribution to unitholders	`LimitedPartnersCapitalAccountDistributionAmount`	$66.44M	USD	Annual
Distribution to unitholders	`LimitedPartnersCapitalAccountDistributionAmount`	$66.44M	USD	Annual
Distribution to unitholders	`LimitedPartnersCapitalAccountDistributionAmount`	$66.41M	USD	Annual
Distribution to unitholders	`LimitedPartnersCapitalAccountDistributionAmount`	$66.41M	USD	Annual
Distribution to unitholders	`LimitedPartnersCapitalAccountDistributionAmount`	$66.42M	USD	Annual
Distribution to unitholders	`LimitedPartnersCapitalAccountDistributionAmount`	$66.42M	USD	Annual
Distribution to noncontrolling interest retained in OpCo by Westlake	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$329.90M	USD	Annual
Distribution to noncontrolling interest retained in OpCo by Westlake	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$329.90M	USD	Annual
Distribution to noncontrolling interest retained in OpCo by Westlake	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$337.60M	USD	Annual
Distribution to noncontrolling interest retained in OpCo by Westlake	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$337.60M	USD	Annual
Distribution to noncontrolling interest retained in OpCo by Westlake	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$315.81M	USD	Annual
Distribution to noncontrolling interest retained in OpCo by Westlake	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$315.81M	USD	Annual
Equity, ending balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$829.31M	USD	Point-in-time
Equity, ending balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$829.31M	USD	Point-in-time
Equity, ending balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$972.70M	USD	Point-in-time
Equity, ending balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$972.70M	USD	Point-in-time
Equity, ending balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$903.71M	USD	Point-in-time
Equity, ending balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$903.71M	USD	Point-in-time
Equity, ending balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$856.25M	USD	Point-in-time
Equity, ending balance	`PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest`	$856.25M	USD	Point-in-time

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.