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Supplemental Financial Information (Other Operating (Income) Expense, Net) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
UTIS fire |  |  |  |
Fixed assets write-offs | $ 0 | $ 0 | $ 891 | $ 0
Inventory charges | 40 | 0 | 320 | 0
Professional services | 1,072 | 0 | 1,594 | 0
Lease obligations | 54 | 0 | 540 | 0
Compensation & benefits | 600 | 0 | 844 | 0
Other | 76 | 0 | 76 | 0
Insurance recoveries | (359) | 0 | (1,478) | 0
Total UTIS fire | 1,483 | 0 | 2,787 | 0
(Gain) loss on sale or disposal of property, plant and equipment | (593) | 33 | (682) | 53
Economic incentive grants | 0 | (145) | 0 | (145)
Total other operating (income) expense, net | $ 890 | $ (112) | $ 2,105 | $ (92)

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- Definition Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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