XML 77 R54.htm IDEA: XBRL DOCUMENT
v3.25.1

DEBT - Interest Rates (Details) | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Interest rates on debt |  |
Effective Interest Rate (as a percent) | 9.14% | 8.35%
Minimum |  |
Interest rates on debt |  |
Range of Interest Rates (excluding unused commitment fees) | 6.21% | 7.18%
Maximum |  |
Interest rates on debt |  |
Range of Interest Rates (excluding unused commitment fees) | 6.24% | 7.21%

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement, excluding unused commitment fees. + References No definition available. + Details
Name: | gnk_DebtInstrumentInterestRateStatedPercentageExcludingUnusedCommitmentFees
Namespace Prefix: | gnk_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The average effective interest rate during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-1F Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482925/835-30-45-2 + Details
Name: | us-gaap_DebtInstrumentInterestRateDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |