Segment Data - Disaggregated Revenues, Segment (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 176,438	$ 141,172
Industrial Solutions
Disaggregation of Revenue [Line Items]
Revenues	35,424	53,323
Industrial Solutions \| Product sales revenues
Disaggregation of Revenue [Line Items]
Revenues	4,423	20,037
Industrial Solutions \| Rental revenues
Disaggregation of Revenue [Line Items]
Revenues	17,615	17,079
Industrial Solutions \| Service revenues
Disaggregation of Revenue [Line Items]
Revenues	13,386	11,654
Industrial Solutions \| Industrial blending revenues
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 4,553

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
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-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

+ Details