XML 113 R106.htm IDEA: XBRL DOCUMENT v3.8.0.1

Share-Based Payments - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of terms and conditions of share-based payment arrangement [abstract]
Cost of performance shares granted	$ 0
Percentage of performance criterion set by company	85.00%
Performance shares up to may be increased	200.00%
Holding period of restricted shares	Five years
Maximum number of matching shares	403,027	169,158
Maximum number of matching shares vesting period	Five years

X

- Definition

Holding period of restricted shares.

+ References

No definition available.

+ Details

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

X

- Definition

Maximum number of matching shares at vest.

+ References

No definition available.

+ Details

Name:	gfi_MaximumNumberOfMatchingSharesAtVest
Namespace Prefix:	gfi_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Maximum number of matching shares at vesting period.

+ References

No definition available.

+ Details

Name:	gfi_MaximumNumberOfMatchingSharesAtVestingPeriod
Namespace Prefix:	gfi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of performance criterion set by the Company.

+ References

No definition available.

+ Details

Name:	gfi_PercentageOfPerformanceCriterionSet
Namespace Prefix:	gfi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Performance shares up to may be increased.

+ References

No definition available.

+ Details

Name:	gfi_PerformanceSharesUpToMayBeIncreased
Namespace Prefix:	gfi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The weighted average exercise price of share options granted in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2017-01-01
-Paragraph 45
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_45_b_ii&doctype=Standard
-URIDate 2017-03-09

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration