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v3.25.1

Inventory - Additional Disclosure (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Inventory |  |
Reduction in inventory valuation | $ 2,598 | $ 1,139
NRV adjustment related to produced inventory | 498 |
NRV adjustment related to non-produced inventory | $ 2,100 | $ 0

X
- Definition Amount of net realized value adjustments related to non-produced inventory. + References No definition available. + Details
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Namespace Prefix: | urg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of net realized value adjustments related to produced inventory. + References No definition available. + Details
Name: | urg_NetRealizableValueAdjustmentsProducedInventory
Namespace Prefix: | urg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_InventoryDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration