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Trade and other receivables (Tables) | 6 Months Ended
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Jun. 30, 2022
Trade and other receivables |
Schedule of activity in the allowance for expected credit losses | ​
​ | ​ | ​ | ​
Balance at December 31, 2021 |  | $ | (4,396)
Current period provision |  | ​ | (120)
Write-offs charged against the allowance |  | ​ | 753
Balance at June 30, 2022 | ​ | $ | (3,763)

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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
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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_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration