Supplemental Balance Sheet Information - Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Balance Sheet Related Disclosures [Abstract]
Catalyst and turnaround costs	$ 701	$ 1,108
Other intangible assets	55	154
Other	1,283	1,152
Intangible and other assets, net	$ 2,039	$ 2,414

Amount after accumulated amortization of finite-lived and indefinite-lived intangible assets classified as other.

No definition available.

Name:	us-gaap_OtherIntangibleAssetsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant