| Cover | Feb. 17, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Feb. 17, 2022 |
| Entity File Number | 000-56044 |
| Entity Registrant Name | Coronado Global Resources Inc. |
| Entity Central Index Key | 0001770561 |
| Entity Tax Identification Number | 83-1780608 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | Level 33, Central Plaza One |
| Entity Address, Address Line Two | 345 Queen Street |
| Entity Address, City or Town | Brisbane, Queensland |
| Entity Address, Country | AU |
| Entity Address, Postal Zip Code | 4000 |
| City Area Code | 61 |
| Local Phone Number | 7 3031 7777 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
