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Other assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Subclassifications of assets, liabilities and equities [abstract]
Restricted cash	$ 27,863	$ 35,386
Chile VAT receivable	25,456	23,406
Investment in Carbon Recycling International	4,502	4,502
Defined benefit pension plans (note 20)	6,650	5,862
Other	13,555	9,628
Other assets	$ 78,026	$ 78,784

X

- Definition

The amount of non-current investments other than investments accounted for using the equity method. [Refer: Investments accounted for using equity method; Non-current assets; Investments other than investments accounted for using equity method]

+ References

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- Definition

The amount of non-current net defined benefit asset. [Refer: Net defined benefit asset]

+ References

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- Definition

The amount of non-current restricted cash and cash equivalents. [Refer: Restricted cash and cash equivalents]

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- Definition

The amount of non-current value added tax receivables. [Refer: Value added tax receivables]

+ References

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- Definition

The amount of non-current assets that the entity does not separately disclose in the same statement or note. [Refer: Non-current assets]

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- Definition

Other Miscellaneous Non-current Assets

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