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Inventories - Allowance (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Inventory Valuation Reserves [Roll Forward] |  |  |  |
Balance, beginning of period | $ 5,281 | $ 1,871 | $ 4,527 | $ 1,787
Provision (recovery of) for excess and obsolete inventories | 1,521 | 1,232 | 2,979 | 1,380
Inventories written off | (2,014) | (38) | (2,718) | (102)
Balance, end of period | $ 4,788 | $ 3,065 | $ 4,788 | $ 3,065

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- Definition Amount of valuation reserve for inventory. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.BB) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480581/330-10-S99-2 + Details
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