In millions, except per share items | Sep-30-18 | Mar-31-18 | Sep-30-17 | Mar-31-17 | Dec-31-16 | Sep-30-16 | Dec-31-15 | Sep-30-15 |
| 6-K | 6-K | 6-K | 6-K | Source | 6-K | Source | 6-K |
Revenue | | | | | | | | |
|
Depreciation and amortization | | | | | | | | |
Mine operating profit | | | | | | | | |
Other expenses/(income) | | | | | | | | |
Exploration expense | | | | | | | | |
General and administrative overheads | | | | | | | | |
Share-based compensation expense | | | | | | | | |
Other expense, net | | | | | | | | |
(Gain)/loss on fair value of derivative financial instruments, net | | | | | | | | |
|
Finance expense, net | | | | | | | | |
Income from continuing operations before tax | | | | | | | | |
Income tax expense | | | | | | | | |
Net income and comprehensive income from continuing operations | | | | | | | | |
Net loss and comprehensive loss from discontinued operations | | | | | | | | |
Comprehensive loss | | | | | | | | |
Net (loss)/income and comprehensive (loss)/income | | | | | | | | |
Comprehensive income/loss attributable to non-controlling interest | | | | | | | | |
Net (loss)/income and comprehensive (loss)/income from continuing operations attributable to non-controlling interest | | | | | | | | |
Comprehensive loss attributable to Golden Star shareholders | | | | | | | | |
Net (loss)/income and comprehensive (loss)/income from continuing operations attributable to Golden Star shareholders | | | | | | | | |
Net income/loss per share attributable to owners and to non-controlling interests from continuing and discontinued operations [abstract] | | | | | | | | |
Net income from continuing operations per share attributable to Golden Star shareholders, basic | | | | | | | | |
Net income from continuing operations per share attributable to Golden Star shareholders, diluted | | | | | | | | |
Basic income/(loss) per share from discontinued operations USD per share) | | | | | | | | |
Diluted income/(loss) per share from discontinued operations, diluted | | | | | | | | |
Net loss per share attributable to Golden Star shareholders, basic | | | | | | | | |
Net loss per share attributable to Golden Star shareholders, diluted | | | | | | | | |