XML 101 R86.htm IDEA: XBRL DOCUMENT
v3.20.1

Financial risk management objectives and policies (Details) | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Disclosure of detailed information about financial instruments [line items] |  |
Borrowings, Percentage Bearing Fixed Interest, Percentage Rate | 10.00% | 6.00%
Net debt to adjusted book capitalisation plus net debt ratio | 83.00% | 73.00%
Minimum |  |
Disclosure of detailed information about financial instruments [line items] |  |
Net debt to adjusted book capitalisation plus net debt ratio | 60.00% |
Maximum |  |
Disclosure of detailed information about financial instruments [line items] |  |
Net debt to adjusted book capitalisation plus net debt ratio | 80.00% |

X
- Definition The percentage of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. + References No definition available. + Details
Name: | glbs_BorrowingsPercentageBearingFixedInterestRate
Namespace Prefix: | glbs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The net debt to adjusted book capitalisation plus net debt ratio. + References No definition available. + Details
Name: | glbs_NetDebtToAdjustedBookCapitalisationPlusNetDebtRatio
Namespace Prefix: | glbs_
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_DisclosureOfFinancialInstrumentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |