Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Summary Of Carrying And Fair Values Of Long-Term Debt

These financial assets and liabilities include cash and cash equivalents, accounts receivable, net, accounts payable and debt payable to Westlake, all of which are recorded at carrying value. The amounts reported in the consolidated balance sheets for accounts receivable, net and accounts payable approximate their fair value due to the short maturities of these instruments. The carrying and fair values of the Partnership's debt at March 31, 2022 and December 31, 2021 are summarized in the table below. The Partnership's debt includes the OpCo Revolver and the MLP Revolver at March 31, 2022. The fair value of debt is determined based on the present value of expected future cash flows using a discounted cash flow methodology. Because the Partnership's valuation methodology used for debt requires the use of significant unobservable inputs, the inputs used to measure the fair value of the Partnership's debt are classified as Level 3 within the fair value hierarchy. Inputs used to estimate the fair values of the Partnership's debt include the selection of an appropriate discount rate.

	March 31, 2022				December 31, 2021
	Carrying Value		Fair Value		Carrying Value		Fair Value
OpCo Revolver	$	22,619	$	23,135	$	22,619	$	23,276
MLP Revolver	377,055		381,875		377,055		383,574