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Trade and Other Receivables - Summary of Trade and Other Receivables (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018 | Jan. 01, 2018 | Dec. 31, 2017
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Disclosure of financial assets [Line Items] |  |  |  |
Trade receivables | $ 74,077 | $ 79,617 | $ 112,419 | $ 112,403
Other receivables | 6,868 | 12,422 |  |
Gross carrying amount [Member] |  |  |  |
Disclosure of financial assets [Line Items] |  |  |  |
Trade receivables | 75,627 | 81,274 |  |
Other receivables | 6,986 | 12,502 |  |
Loss allowances [Member] |  |  |  |
Disclosure of financial assets [Line Items] |  |  |  |
Trade receivables | (1,550) | (1,657) |  |
Other receivables | $ (118) | $ (80) |  |

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