Consolidated Balance Sheets (Parenthetical) - Common units - shares	Mar. 31, 2025	Dec. 31, 2024
Publicly and Privately Held
Units issued (in shares)	21,116,326	21,116,326
Units outstanding (in shares)	21,116,326	21,116,326
Westlake
Units issued (in shares)	14,122,230	14,122,230
Units outstanding (in shares)	14,122,230	14,122,230