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Other Commitments and Contingencies - Narrative (Details) £ in Millions, $ in Millions | 6 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 GBP (£) tax_lease | Dec. 31, 2003 GBP (£) tax_lease | Jun. 30, 2018 USD ($) shares
Loss Contingencies [Line Items] |  |  |
Number of tax leases | tax_lease |  | 6 |
Gross cash benefit received from tax leases | £ |  | £ 41 |
Number of tax leases terminated | tax_lease | 5 |  |
Number of tax leases remaining | tax_lease | 1 |  |
Minimum |  |  |
Loss Contingencies [Line Items] |  |  |
Estimate of possible exposure | £ | £ 0 |  |
Maximum |  |  |
Loss Contingencies [Line Items] |  |  |
Estimate of possible exposure | £ | £ 112 |  |
Margin Loan Facility | Golar Partners, Common Units |  |  |
Loss Contingencies [Line Items] |  |  |
Number of common units pledged as security (in shares) | shares |  |  | 21,226,586
ECGS |  |  |
Loss Contingencies [Line Items] |  |  |
Commitments and Contingencies | $ |  |  | $ 1.0
Shareholders' Agreement, Project to Fund Development of Pipeline Infrastructure and FSRU [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Contractual Obligation | $ |  |  | 0.5
Shareholders' Agreement, Project to Fund Development of Pipeline Infrastructure and FSRU [Member] | Maximum |  |  |
Loss Contingencies [Line Items] |  |  |
Contractual Obligation | $ |  |  | $ 15.0

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