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Summary of significant accounting policies - Narrative (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2022 USD ($) segment | Sep. 30, 2021 segment | Sep. 30, 2022 USD ($) segment | Sep. 30, 2021 segment | Jan. 01, 2022 USD ($) | Dec. 31, 2021 USD ($)
Concentration Risk [Line Items] |  |  |  |  |  |
Number of operating segments | segment | 2 | 2 | 2 | 2 |  |
Number of reportable segments | segment | 2 | 2 | 2 | 2 |  |
Operating lease right-of-use assets | $ 12,939 |  | $ 12,939 |  |  | $ 0
Operating lease liabilities | $ 15,022 |  | $ 15,022 |  |  |
Accounting Standards Update 2016-02 | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |
Operating lease right-of-use assets |  |  |  |  | $ 17,600 |
Operating lease liabilities |  |  |  |  | $ 20,000 |

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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