XML 66 R11.htm IDEA: XBRL DOCUMENT
v3.20.1

REVISIONS TO PRIOR PERIOD COMPARATIVES | 12 Months Ended
--- | ---
Dec. 31, 2019
REVISIONS TO PRIOR PERIOD COMPARATIVES |
REVISIONS TO PRIOR PERIOD COMPARATIVES | 4. REVISIONS TO PRIOR PERIOD COMPARATIVES In the first quarter of 2019 the Company identified an immaterial error relating to its deferred tax liabilities. The result of this error is an increase to income tax expense and deferred tax liabilities of $14.8 million for the year ended December 31, 2018. The resulting understatement of the deferred tax liabilities, the income tax expense and the deficit balance of $14.8 million for the year ended December 31, 2018 have been revised in the comparative consolidated statement of financial position, consolidated income statements and the consolidated statement of cash flow.

X
- Definition The description of the nature of accounting errors in prior periods. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 8 -IssueDate 2019-01-01 -Paragraph 49 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=8&code=ifrs-tx-2019-en-r&anchor=para_49_a&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_DescriptionOfNatureAmountAndCorrectionOfAccountingErrorsInPriorPeriodsEstimate
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ngd_RevisionsToPriorPeriodComparativesDisclosureAbstract
Namespace Prefix: | ngd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration