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Intangible assets - Narrative (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Disclosure of detailed information about intangible assets [line items] |  |
Amortization expense | $ 2,354,000 | $ 2,309,000
Disposals | 7,311,000 |
Impairment loss recognised in profit or loss, intangible assets other than goodwill |  | 1,200,000
Net realizable value |  | 0
Cost |  |
Disclosure of detailed information about intangible assets [line items] |  |
Amortization expense | 0 | 0
Disposals | 9,138,000 |
Impairment loss recognised in profit or loss, intangible assets other than goodwill |  | $ 0
Power Manager Business | Cost |  |
Disclosure of detailed information about intangible assets [line items] |  |
Disposals | $ (7,311,000) |

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- Definition Fair Value Of Intangible Assets Other Than Goodwill Materially Different From Carrying Amount + References No definition available. + Details
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- Definition The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -Subparagraph e -Clause vi -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_vi&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The decrease in intangible assets other than goodwill resulting from disposals. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_ii&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of impairment loss recognised in profit or loss for intangible assets other than goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2017-01-01 -Paragraph 118 -Subparagraph e -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_iv&doctype=Standard -URIDate 2017-03-09 + Details
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- Details
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- Details
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