Summary of significant accounting policies - Impairment of Long-Lived Assets (Details) - USD ($) |
12 Months Ended | ||
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Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
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| Accounting Policies [Abstract] | |||
| Tangible asset impairment charges | $ 0 | $ 0 | $ 0 |
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- References No definition available.
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- Definition The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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