XML 102 R84.htm IDEA: XBRL DOCUMENT v3.8.0.1

15. RECLAMATION OBLIGATIONS (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
DisclosureOfReclamationObligationsLineItems [Line Items]
Current reclamation obligations	$ 653	$ 810
Noncurrent reclamation obligations	22,071	20,155
Total reclamation obligations	22,724	20,965	$ 19,460
Elliot Lake
DisclosureOfReclamationObligationsLineItems [Line Items]
Total reclamation obligations	13,368	12,470
McClean And Midwest Joint Ventures
DisclosureOfReclamationObligationsLineItems [Line Items]
Total reclamation obligations	9,339	8,479
Other
DisclosureOfReclamationObligationsLineItems [Line Items]
Total reclamation obligations	$ 17	$ 16

X

- References

No definition available.

+ Details

Name:	DNN_CurrentProvisionForReclamationObligations
Namespace Prefix:	DNN_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	DNN_DisclosureOfReclamationObligationsLineItems
Namespace Prefix:	DNN_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	DNN_NoncurrentProvisionForReclamationObligations
Namespace Prefix:	DNN_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	DNN_ProvisionForReclamationObligations
Namespace Prefix:	DNN_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=DNN_ElliotLakeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=DNN_McCleanAndMidwestJointVenturesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=DNN_OtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: