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Allowance for credit losses (Tables) | 3 Months Ended
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Mar. 31, 2022
Allowance for credit losses |
Schedule change in the allowance for credit losses | ​
​ | ​ | ​ | ​
in thousands | ​ | ​ | ​
Balance at December 31, 2021 | ​ | $ | 1,419
Provision | ​ | ​ | 875
Write-offs | ​ | ​ | 19
Net foreign currency translation | ​ | ​ | (21)
Balance at March 31, 2022 | ​ | $ | 2,292

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- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: 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=124255953&loc=SL82919249-210447 + Details
Name: | us-gaap_AccountsReceivableAllowanceForCreditLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_CreditLossAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration