Commitments and contingencies - Guarantees (Details) |
Jun. 30, 2026
USD ($)
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|---|---|
| Guarantor Obligations [Line Items] | |
| Outstanding letters of credit | $ 0 |
| Amount of surety bonds outstanding | 12,400,000 |
| Line of Credit | |
| Guarantor Obligations [Line Items] | |
| Line of credit facility, maximum borrowing capacity | $ 3,200,000 |
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- Definition Amount of surety bonds outstanding related to construction contracts and reclamation obligations. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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