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Debt - Narrative (Details) |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Mar. 03, 2017 USD ($) shares | Feb. 17, 2017 USD ($) instrument $ / shares | Sep. 30, 2017 USD ($) shares | Sep. 30, 2016 USD ($) | Feb. 13, 2017 $ / shares
Debt Instrument [Line Items] |  |  |  |  |
Cost of capped call transactions |  |  | $ 31,194,000 | $ 0 |
Margin Loan Facility | Golar Partners, Common Units |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Number of common units pledged as security (in shares) | shares |  |  | 20,852,291 |  |
Convertible Debt | Convertible bonds - 2017 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Face amount |  | $ 402,500,000 | $ 402,500,000 |  |
Term |  | 5 years |  |  |
Stated interest rate |  | 2.75% |  |  |
Conversion rate |  | 0.0265308 |  |  |
Initial conversion price (in USD per share) | $ / shares |  | $ 37.69 |  |  |
Premium percentage for convertible bonds |  | 35.00% |  |  |
Closing share price (in USD per share) | $ / shares |  |  |  |  | $ 27.92
Cost of capped call transactions |  | $ 31,200,000 |  |  |
Number of common shares covered by capped call transactions (in shares) | instrument |  | 10,678,647 |  |  |
Initial cap price (in USD per share) | $ / shares |  | $ 48.86 |  |  |
Premium percentage for capped call transactions |  | 75.00% |  |  |
All-in cost of the bond |  | 4.30% |  |  |
Bond proceeds, net of fees and cost of capped call transactions |  | $ 360,200,000 |  |  |
Convertible Debt | Convertible bonds - 2012 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stated interest rate | 3.75% |  |  |  |
Secured Debt | Margin Loan Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Face amount | $ 150,000,000 |  |  |  |
Term | 3 years |  |  |  |
Secured Debt | Margin Loan Facility | LIBOR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Variable rate margin | 3.95% |  |  |  |
Secured Debt | Margin Loan Facility | Golar Partners, Common Units |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Number of common units pledged as security (in shares) | shares | 20,852,291 |  |  |  |

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