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Inventories - Narratives (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Inventory |  |  |  |
Inventory write-down |  |  | $ 769 | $ 580
Chemistry Technologies |  |  |  |
Inventory |  |  |  |
Inventory write-down | $ 400 | $ 100 | 700 | 400
Data Analytics |  |  |  |
Inventory |  |  |  |
Inventory write-down | $ 49 | $ 100 | $ 49 | $ 100

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- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=116847112&loc=d3e4542-108314 + Details
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- Details
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- Details
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