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Loans payable - Narrative (Details) |  |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 20, 2023 USD ($) | Apr. 13, 2023 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 CAD ($) | Nov. 20, 2020 USD ($) | Nov. 20, 2020 CAD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Premium payment, percentage of amount prepaid from common stock issuance proceeds | 10.00% |  |  |  |  |  |  |  |
Debt issuance costs |  |  | $ 725,000 | $ 0 | $ 2,118,000 | $ 0 |  |  |
ELOC, right to sell common stock, amount | $ 50,000,000 |  |  |  |  |  |  |  |
SIF Loan | Other notes payable |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  | $ 38,000,000 |  | $ 40,000,000
Prepayment rate |  |  |  |  |  |  |  | 150.00% | 150.00%
Repayment benchmark year, revenue |  |  |  |  |  |  |  | $ 70,000,000 |
Repayment benchmark year, period |  |  |  |  |  |  |  | 14 years | 14 years
Effective interest rate |  |  |  | 2.36% |  | 2.36% | 2.50% |  |
Term Loan | Line of credit |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Face amount |  | $ 50,000,000.0 |  |  |  |  |  |  |
Drawdown fee percentage |  | 2.00% |  |  |  |  |  |  |
Premium payment, percentage of amount prepaid from common stock issuance proceeds |  | 10.00% |  |  |  |  |  |  |
Interest rate |  | 10.00% |  |  |  |  | 11.00% |  |
Interest rate, PIK |  | 11.00% |  |  |  |  |  |  |
Interest expense |  |  | 800,000 |  | 1,200,000 |  |  |  |
Debt issuance costs |  |  | $ 2,100,000 |  | $ 2,100,000 |  |  |  |
Non-dilutive financing |  | $ 25,000,000.0 |  |  |  |  |  |  |
Term Loan | Line of credit | Debt repayment period one |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Prepayment premium percentage |  | 3.00% |  |  |  |  |  |  |
Term Loan | Line of credit | Debt repayment period two |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Prepayment premium percentage |  | 2.00% |  |  |  |  |  |  |
Term Loan | Line of credit | Debt repayment period three |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Prepayment premium percentage |  | 1.00% |  |  |  |  |  |  |
Term Loan | Line of credit | Debt tranche one |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Face amount |  | $ 15,000,000.0 |  |  |  |  |  |  |
Term Loan | Line of credit | Debt tranche three |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Face amount |  | $ 20,000,000.0 |  |  |  |  |  |  |

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