XML 42 R27.htm IDEA: XBRL DOCUMENT
v3.20.2

CASH FLOW INFORMATION (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2020
CASH FLOW INFORMATION |
Schedule of cash flow information related to operating leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Six Months Ended | ​
​ | ​ | June 30, | ​
​ | ​ | 2020 | ​ | 2019 |
Cash paid for amounts included in the measurement of lease liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating cash flows from operating lease | ​ | $ | 1,115 | ​ | $ | 1,115 | ​

X
- Definition The tabular disclosure of cash flow lease information. + References No definition available. + Details
Name: | gnk_LeaseCashFlowsInformationDisclosureTableTextBlock
Namespace Prefix: | gnk_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SupplementalCashFlowElementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration