XML 416 R154.htm IDEA: XBRL DOCUMENT
v3.21.1

Stated Capital - Schedule of Stated Capital (Parenthetical) (Detail) $ / shares in Units, $ in Millions, R in Billions |  | 12 Months Ended
--- | --- | ---
Feb. 12, 2020 USD ($) $ / shares shares | Feb. 12, 2020 ZAR (R) shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($) shares | Dec. 31, 2018 USD ($)
Disclosure of classes of share capital [line items] |  |  |  |  |
Shares issued during the period | shares | 41,431,635 | 41,431,635 |  |  |
Percentage of placing shares issued | 5.00% | 5.00% |  |  |
Proceeds from placing | $ 249.0 | R 3.7 | $ 249.0 | $ 0.0 | $ 0.0
Investors price per share | $ / shares | $ 90.20 |  |  |  |
Ordinary shares [member] |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |
Shares issued during the period | shares |  |  | 41,431,635 | 0 |
Proceeds from placing | $ |  |  | $ 249.0 | $ 0.0 |
No Par Value Per Share | $ / shares | $ 0 |  |  |  |

X
- Definition Investors price per share. + References No definition available. + Details
Name: | gfi_InvestorsPricePerShare
Namespace Prefix: | gfi_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Issued pricing share capital as percentage of issued ordinary share capital. + References No definition available. + Details
Name: | gfi_IssuedPricingShareCapitalAsPercentageOfIssuedOrdinaryShareCapital
Namespace Prefix: | gfi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition No Par Value Per Share + References No definition available. + Details
Name: | gfi_NoParValuePerShare
Namespace Prefix: | gfi_
Data Type: | num:perShareItemType
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_DisclosureOfClassesOfShareCapitalLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase (decrease) in the number of ordinary shares issued. [Refer: Ordinary shares [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from issuing shares. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 17 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_17_a&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ProceedsFromIssuingShares
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |