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Contingencies and commitments - Capital Commitments (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Capital commitments
Contingencies and commitments
Committed amount	$ 19,579	$ 20,651

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- References

No definition available.

+ Details

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- Definition

Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308

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- Details

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