XML 58 R45.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Future Minimum Cash Payments Under Non-cancelable Operating Leases (Detail) - American Reliable Insurance Company $ in Thousands | Sep. 30, 2015 USD ($)
--- | ---
Future Minimum Payments Under Non-Cancelable Operating Leases With Initial Terms Of One-Year Or More [Line Items] |
October 1, 2015 to September 30, 2016 | $ 1,032
October 1, 2016 to September 30, 2017 | 941
October 1, 2017 to September 30, 2018 | 937
October 1, 2018 to September 30, 2019 | 143
Total | $ 3,053

X
- Definition Future Minimum Payments Under Non-Cancelable Operating Leases With Initial Terms Of One-Year Or More [Line Items] + References No definition available. + Details
Name: | gbli_FutureMinimumPaymentsUnderNonCancelableOperatingLeasesWithInitialTermsOfOneYearOrMoreLineItems
Namespace Prefix: | gbli_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | gbli_OperatingLeasesFutureMinimumPaymentsDueInRollingYearOne
Namespace Prefix: | gbli_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsDueInRollingYearFour
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsDueInRollingYearThree
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsDueInRollingYearTwo
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=gbli_AmericanReliableInsuranceCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |