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Trade Accounts Receivable (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 USD ($) Segment | Mar. 31, 2020 USD ($)
Trade Accounts Receivable [Abstract] |  |
Number of portfolio segments | Segment | 1 |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |
Beginning balance | $ 3,891 | $ 6,913
Provision for expected credit losses | 156 | 240
Accounts written off | (353) | (336)
Translation and other activity | (80) | (643)
Ending balance | $ 3,614 | 7,027
ASU 2016-13 [Member] |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |
Adoption of ASU 2016-13 |  | $ 853

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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable from change in methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 11 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919244-210447 + Details
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