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Commitments and contingencies (Details) - USD ($) $ in Thousands | 158 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Site Contingency [Line Items] |  |
Total future payments | $ 82,554 |
Payments in 2025 | 20,472 |
Payments in 2026 | 21,389 |
Payments in 2027 | 20,217 |
Payments in 2028 | 20,476 |
Payments in 2029 - 2033 | 0 |
Multiple sites |  |
Site Contingency [Line Items] |  |
Environmental accrual | 1,933 | $ 1,992
Tegrant Holding Corporation |  |
Site Contingency [Line Items] |  |
Payment towards remediation of sites | 2,304 |
Tegrant Holding Corporation | Spartanburg, South Carolina Site |  |
Site Contingency [Line Items] |  |
Environmental accrual | $ 5,096 | $ 5,259

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