XML 483 R205.htm IDEA: XBRL DOCUMENT
v3.19.1

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Disclosure of transactions between related parties [line items] |  |
Key management remuneration | $ 17.0 | $ 17.0
Director's interest in issued share capital or voting control | 1.00% |
Executive Committee and Non-Executive Directors [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Key management personnel's beneficial interest in issued and listed share capital | 0.10% | 0.20%

X
- Definition Percentage of key management personnel's beneficial interest in issued and listed share capital. + References No definition available. + Details
Name: | gfi_PercentageOfBeneficialInterestInIssuedAndListedCapital
Namespace Prefix: | gfi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of interest in issued share capital of each director. + References No definition available. + Details
Name: | gfi_PercentageOfInterestInIssuedShareCapitalOfEachDirector
Namespace Prefix: | gfi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of compensation to key management personnel. [Refer: Key management personnel of entity or parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2018-01-01 -Paragraph 17 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2018-03-01&anchor=para_17&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_KeyManagementPersonnelCompensation
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=gfi_ExecutiveCommitteeAndNonexecutiveDirectorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |