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Trade Accounts Receivable (Tables) | 3 Months Ended
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Mar. 31, 2021
Trade Accounts Receivable [Abstract] |
Changes in Allowance for Doubtful Accounts | The following table summarizes the changes in the allowance for doubtful accounts during the three month periods ended March 31, 2021 and 2020:
(In thousands) Three Months Ended March 31, 2021 |  | Allowance for Doubtful Accounts |
Balance at December 31, 2020 |  | $ | 3,891 |
Provision for expected credit losses |  |  | 156 |
Accounts written off |  |  | (353 | )
Translation and other activity |  |  | (80 | )
Balance at March 31, 2021 |  | $ | 3,614 |
(In thousands) Three Months Ended March 31, 2020 |  | Allowance for Doubtful Accounts |
Balance at December 31, 2019 |  | $ | 6,913 |
Adoption of ASU 2016-13 |  |  | 853 |
Provision for expected credit losses |  |  | 240 |
Accounts written off |  |  | (336 | )
Translation and other activity |  |  | (643 | )
Balance at March 31, 2020 |  | $ | 7,027 |

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- Definition Tabular disclosure of allowance for credit loss of financing receivable, classified as current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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