XML 29 R22.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

New Accounting Pronouncements | 6 Months Ended
--- | ---
Jun. 30, 2024
Accounting Changes and Error Corrections [Abstract] |
New Accounting Pronouncements | 14. New Accounting Pronouncements The Company did not adopt any new accounting pronouncements during the six months ended June 30, 2024. Please see Note 25 of the notes to the consolidated financial statements in Item 8 Part II of the Company’s 2023 Annual Report on Form 10-K for more information on accounting pronouncements issued but not yet adopted.

X
- Definition Description Of New Accounting Pronouncements + References No definition available. + Details
Name: | gbli_DescriptionOfNewAccountingPronouncementsTextBlock
Namespace Prefix: | gbli_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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