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Commitments and contingencies (Details) - USD ($) $ in Thousands | 146 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Site Contingency [Line Items] |  |
Environmental accrual | $ 7,251 | $ 7,265
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] | Accrued expenses and other | Accrued expenses and other
Total future payments | $ 244,867 |
Payments in 2024 | 102,713 |
Payments in 2025 | 97,458 |
Payments in 2026 | 35,742 |
Payments in 2027 | 8,954 |
Payments in 2028 - 2032 | 0 |
Multiple sites |  |
Site Contingency [Line Items] |  |
Environmental accrual | 1,992 | $ 1,840
Tegrant Holding Corporation |  |
Site Contingency [Line Items] |  |
Payment towards remediation of sites | 2,141 |
Tegrant Holding Corporation | Spartanburg, South Carolina Site |  |
Site Contingency [Line Items] |  |
Environmental accrual | $ 5,259 | $ 5,425

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