Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Total net sales	$ 284,673	$ 307,677
Cost of sales	182,493	201,604
Gross profit	102,180	106,073
Selling, general and administrative expenses	7,077	7,914
Total Operating Expenses	7077.0	7914.0	0	0	0
Income from operations	95,103	98,159
Other income (expense)
Total Other Income Expenses	1334.0	820.0	0.0	0.0	0.0
Total Other Income Expenses	-1334.0	-820.0	0.0	0.0	0.0
Total Other Income Expenses	-1334.0	-820.0	0.0	0.0	0.0
Total Other Income Expenses	1334.0	820.0	0.0	0.0	0.0
Total Other Income Expenses	1334.0	820.0	0.0	0	0
Other income, net	1,334	820
Income before income taxes	89,856	91,664
Provision for income taxes	210	212
Net income	89,646	91,452
Less: Net income attributable to noncontrolling interest in OpCo	74,813	76,560
Net income attributable to Westlake Chemical Partners LP and limited partners' interest in net income	$ 14,833	$ 14,892
Net income per limited partner unit attributable to Westlake Chemical Partners LP (basic and diluted)
Weighted average limited partner units outstanding (basic and diluted) (in units)	35,228,134	35,221,868
Common units
Other income (expense)
Net income attributable to Westlake Chemical Partners LP and limited partners' interest in net income	$ 14,833	$ 14,892
Net income per limited partner unit attributable to Westlake Chemical Partners LP (basic and diluted)
Common units (in usd per share)	$ 0.42	$ 0.42
Diluted (in usd per share)	$ 0.42	$ 0.42
Weighted average limited partner units outstanding (basic and diluted) (in units)	35,228,134	35,221,868
Common units \| Westlake
Net income per limited partner unit attributable to Westlake Chemical Partners LP (basic and diluted)
Weighted average limited partner units outstanding (basic and diluted) (in units)	14,122,230	14,122,230
Publicly and Privately Held \| Common units
Net income per limited partner unit attributable to Westlake Chemical Partners LP (basic and diluted)
Weighted average limited partner units outstanding (basic and diluted) (in units)	21,105,904	21,099,638
Affiliated Entity
Net co-products, ethylene and other sales—third parties	$ 235,209	$ 257,471
Affiliated Entity \| Westlake
Selling, general and administrative expenses	6,099	6,671
Other income (expense)
Interest expense	(6,581)	(7,315)
Nonrelated Party
Net co-products, ethylene and other sales—third parties	$ 49,464	$ 50,206

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Name:	us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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