Investments in and Advances to Affiliates (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Investments in and Advances to Affiliates [Line Items]
Total Investments	$ 14,167	$ 11,233
CSI Compressco
Investments in and Advances to Affiliates [Line Items]
Total Investments	6,862	6,233
CarbonFree
Investments in and Advances to Affiliates [Line Items]
Total Investments	5,609	5,000
Standard Lithium
Investments in and Advances to Affiliates [Line Items]
Total Investments	$ 1,696	$ 0

Value of the investment at close of period. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 6
-Subparagraph (SX 210.12-14(3))
-URI http://asc.fasb.org/extlink&oid=122147990&loc=d3e611322-123010

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 6
-Subparagraph (SX 210.12-14(2))
-URI http://asc.fasb.org/extlink&oid=122147990&loc=d3e611322-123010

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 6
-Subparagraph (SX 210.12-14(Column E))
-URI http://asc.fasb.org/extlink&oid=122147990&loc=d3e611322-123010

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