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Inventories - Narratives (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Inventory |  |
Inventory write-down | $ 623 | $ 12,261
Chemistry Technologies |  |
Inventory |  |
Inventory write-down | 600 | 8,400
Data Analytics |  |
Inventory |  |
Inventory write-down | $ 0 | $ 3,900

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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 http://asc.fasb.org/extlink&oid=116847112&loc=d3e4542-108314 + Details
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- Details
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- Details
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