XML 64 R46.htm IDEA: XBRL DOCUMENT
v3.24.3

PROPOSED MERGER (Details) - Forecast | Nov. 04, 2024 member
--- | ---
Reverse Recapitalization [Line Items] |
Ownership percentage of shares outstanding | 10.00%
Number of members of the board of directors | 3
Berry Global Group, Inc. |
Reverse Recapitalization [Line Items] |
Ownership percentage of shares outstanding | 90.00%
Number of members of the board of directors | 6

X
- Definition Number Of Members On The Board Of Directors + References No definition available. + Details
Name: | glt_NumberOfMembersOnTheBoardOfDirectors
Namespace Prefix: | glt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Ownership Percentage Of Shares Outstanding + References No definition available. + Details
Name: | glt_OwnershipPercentageOfSharesOutstanding
Namespace Prefix: | glt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Reverse Recapitalization + References No definition available. + Details
Name: | glt_ReverseRecapitalizationLineItems
Namespace Prefix: | glt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=glt_BerryGlobalGroupInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |