Debt - Wells Fargo Note Payable (Details) - USD ($) $ in Millions |
9 Months Ended | |||||
|---|---|---|---|---|---|---|
May 01, 2023 |
Apr. 30, 2023 |
Sep. 30, 2025 |
Dec. 31, 2024 |
Sep. 30, 2024 |
Dec. 31, 2023 |
|
| Debt | ||||||
| Outstanding amount | $ 972 | $ 1,051 | ||||
| Wells Fargo Note Payable | ||||||
| Debt | ||||||
| Outstanding amount | $ 4 | $ 4 | ||||
| Basis spread on variable rate | 1.75% | 2.25% | 1.75% | |||
| Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] | us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember | gliba:OneMonthLondonInterbankOfferedRateLiborMember | Secured Overnight Financing Rate (SOFR) [Member] | |||
| Interest rate (as a percent) | 5.90% | 6.10% | 6.80% | 7.10% |
| X | ||||||||||
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
|
| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Indicates type of variable interest rate on debt instrument. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|