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Employee Benefit - Maturity Profile of Defined Benefit Obligation (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Disclosure of defined benefit plans [Line Items] |  |
Expected payments | $ 25,137 | $ 24,500
Weighted average duration of defined benefit obligation | 9 years | 10 years
Top of range [Member] |  |
Disclosure of defined benefit plans [Line Items] |  |
Weighted average duration of defined benefit obligation |  | 11 years
Within one year [Member] |  |
Disclosure of defined benefit plans [Line Items] |  |
Expected payments | $ 1,340 | $ 855
Between 2 and 5 years [Member] |  |
Disclosure of defined benefit plans [Line Items] |  |
Expected payments | 2,489 | 2,374
Between 6 and 10 years [Member] |  |
Disclosure of defined benefit plans [Line Items] |  |
Expected payments | 4,391 | 4,187
Beyond 10 years [Member] |  |
Disclosure of defined benefit plans [Line Items] |  |
Expected payments | $ 16,917 | $ 17,084

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- Definition The estimate of the expected contributions to be made to a defined benefit plan for the next annual reporting period. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 147 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_147_b&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 148 -Subparagraph d -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_148_d_iii&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The weighted average duration of a defined benefit obligation. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 147 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_147_c&doctype=Standard -URIDate 2019-03-27 + Details
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