v3.26.1
Income Taxes - Additional information (Details)
$ in Thousands
Dec. 31, 2025
USD ($)
Income Taxes
Uncertain tax position
$ 0
X
- Definition
Amount of uncertain tax positions.
+ References
No definition available.
+ Details
Name:
tmc_UncertainTaxPositions
Namespace Prefix:
tmc_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration