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Variable Interest Entities - Summary of Sale and Leaseback Arrangement (Details) - COSCO Shipping Agreement - Golar Crystal - Variable Interest Entity, Primary Beneficiary
$ in Millions
6 Months Ended
Jun. 30, 2017
USD ($)
Variable Interest Entity [Line Items]  
Sales value $ 187.0
First repurchase option 97.3
Repurchase obligation at end of lease term $ 50.6