XML 143 R112.htm IDEA: XBRL DOCUMENT v3.19.1

SEGMENTED INFORMATION (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Segmented information [Line Items]
Severance and Other Termination Benefits	$ 4.1	$ 4.2
Major Customer [Member]
Segmented information [Line Items]
Percentage of entity's revenue	79.00%	68.00%

X

- Definition

The percentage of the entity's revenue. [Refer: Revenue]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 8
-IssueDate 2018-01-01
-Paragraph 34
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2018-03-01&anchor=para_34&doctype=Standard
-URIDate 2018-03-16

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The disclosure of detailed information about reportable operating segments.

+ References

No definition available.

+ Details

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Namespace Prefix:	ngd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount represents the value of severance and other termination benefits.

+ References

No definition available.

+ Details

Name:	ngd_SeveranceAndOtherTerminationBenefits
Namespace Prefix:	ngd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	ifrs-full_MajorCustomersAxis=ngd_MajorCustomerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: