XML 157 R126.htm IDEA: XBRL DOCUMENT v3.19.1

COMMITMENTS AND CONTINGENCIES (Details Textual) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Contractual commitments [Line Items]
Contractual capital commitments	$ 27.2	$ 51.4
Due over next twelve months [Member]
Contractual commitments [Line Items]
Contractual capital commitments	$ 26.9	$ 48.5

X

- Definition

The amount of capital commitments for which the entity has entered into a contract. [Refer: Capital commitments]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_ContractualCapitalCommitments
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- Details

Name:	ngd_FutureDueStatusAxis=ngd_DueOverNextTwelveMonthsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: