v3.26.1
Cash and cash equivalents (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Cash and Cash Equivalents [Abstract]
Cash and cash equivalents held by subsidiaries
$ 23.5
$ 9.1
X
- Definition
Cash and Cash Equivalents, At Carrying Value, Held By Subsidiaries
+ References
No definition available.
+ Details
Name:
ie_CashAndCashEquivalentsAtCarryingValueHeldBySubsidiaries
Namespace Prefix:
ie_
Data Type:
xbrli:monetaryItemType
Balance Type:
debit
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration