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Financial Instruments - Summary of Group's Exposure to Foreign Currency Risk Based on Notional Amounts (Detail) - Currency risk [member] € in Thousands, ¥ in Thousands, $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 CNY (¥)
USD
Disclosure of Risks [line items]
Financial assets (liabilities)	$ 153,530			$ 120,776
USD | Financial assets [member]
Disclosure of Risks [line items]
Financial assets	925,142			1,095,564
USD | Other non-current assets [member]
Disclosure of Risks [line items]
Financial assets	188			69
USD | Financial assets at fair value through other comprehensive income [member]
Disclosure of Risks [line items]
Financial assets	85,029			8,848
USD | Trade receivables and contract assets [member]
Disclosure of Risks [line items]
Financial assets	14,729			13,234
USD | Other current assets [member]
Disclosure of Risks [line items]
Financial assets	10,297			11,769
USD | Cash and cash equivalents [member]
Disclosure of Risks [line items]
Financial assets	814,899			1,061,644
USD | Financial liabilities [member]
Disclosure of Risks [line items]
Financial liabilities	(1,550,424)			(1,670,942)
USD | Loans and borrowings-non-current [member]
Disclosure of Risks [line items]
Financial liabilities	(302,607)			(342,930)
USD | Debt securities issued-non-current [member]
Disclosure of Risks [line items]
Financial liabilities	(942,374)			(940,137)
USD | Lease obligations - non-current [member]
Disclosure of Risks [line items]
Financial liabilities	(3,460)			(6,822)
USD | Other non current liabilities [member]
Disclosure of Risks [line items]
Financial liabilities	(56,888)			(64,829)
USD | Loans and borrowings-current [member]
Disclosure of Risks [line items]
Financial liabilities	(89,379)			(85,526)
USD | debt securities issued-current [member]
Disclosure of Risks [line items]
Financial liabilities	(55,938)			(55,938)
USD | Lease obligations-current [member]
Disclosure of Risks [line items]
Financial liabilities	(2,589)			(721)
USD | Other current liabilities [member]
Disclosure of Risks [line items]
Financial liabilities	(953)
USD | Trade and other payables
Disclosure of Risks [line items]
Financial liabilities	(96,236)			(174,039)
USD | Financial liabilities defined as hedging instruments [Member]
Disclosure of Risks [line items]
Financial assets (liabilities)	16,987
USD | Participating cross currency swap and FX swap contracts [member]
Disclosure of Risks [line items]
Financial assets (liabilities)	244,583			440,036
USD | Currency forward contracts [member]
Disclosure of Risks [line items]
Financial assets (liabilities)	$ 517,242			$ 256,118
EUR
Disclosure of Risks [line items]
Financial assets (liabilities) | €		€ (279,494)			€ 38,082
EUR | Financial assets [member]
Disclosure of Risks [line items]
Financial assets | €		183,653			169,799
EUR | Other non-current assets [member]
Disclosure of Risks [line items]
Financial assets | €		11			11
EUR | Financial assets at fair value through other comprehensive income [member]
Disclosure of Risks [line items]
Financial assets | €		16,453			64,956
EUR | Due from related parties-current [member]
Disclosure of Risks [line items]
Financial assets | €		13
EUR | Trade receivables and contract assets [member]
Disclosure of Risks [line items]
Financial assets | €		20,135			15,239
EUR | Other current assets [member]
Disclosure of Risks [line items]
Financial assets | €		5,931			3,737
EUR | Cash and cash equivalents [member]
Disclosure of Risks [line items]
Financial assets | €		141,110			85,856
EUR | Financial liabilities [member]
Disclosure of Risks [line items]
Financial liabilities | €		(756,849)			(832,290)
EUR | Loans and borrowings-non-current [member]
Disclosure of Risks [line items]
Financial liabilities | €		(504,992)			(543,680)
EUR | Lease obligations - non-current [member]
Disclosure of Risks [line items]
Financial liabilities | €		(16,829)			(17,000)
EUR | Loans and borrowings-current [member]
Disclosure of Risks [line items]
Financial liabilities | €		(205,687)			(244,057)
EUR | Lease obligations-current [member]
Disclosure of Risks [line items]
Financial liabilities | €		(3,274)			(3,598)
EUR | Other current liabilities [member]
Disclosure of Risks [line items]
Financial liabilities | €		(8,752)
EUR | Trade and other payables
Disclosure of Risks [line items]
Financial liabilities | €		(17,010)			(23,944)
EUR | Due to related parties [member]
Disclosure of Risks [line items]
Financial liabilities | €		(305)			(11)
EUR | Financial liabilities defined as hedging instruments [Member]
Disclosure of Risks [line items]
Financial assets (liabilities) | €		261,680			164,634
EUR | Participating cross currency swap and FX swap contracts [member]
Disclosure of Risks [line items]
Financial assets (liabilities) | €		€ 32,022			€ 535,939
RMB
Disclosure of Risks [line items]
Financial assets (liabilities) | ¥			¥ (556,962)			¥ (545,845)
RMB | Financial assets [member]
Disclosure of Risks [line items]
Financial assets | ¥			85,679			4,801
RMB | Other current assets [member]
Disclosure of Risks [line items]
Financial assets | ¥			14,079
RMB | Cash and cash equivalents [member]
Disclosure of Risks [line items]
Financial assets | ¥			71,600			4,801
RMB | Financial liabilities [member]
Disclosure of Risks [line items]
Financial liabilities | ¥			(810,117)			(741,067)
RMB | Loans and borrowings-non-current [member]
Disclosure of Risks [line items]
Financial liabilities | ¥			(344,052)			(160,398)
RMB | Loans and borrowings-current [member]
Disclosure of Risks [line items]
Financial liabilities | ¥			(102,395)			(92,931)
RMB | Trade and other payables
Disclosure of Risks [line items]
Financial liabilities | ¥			(363,670)			(487,738)
RMB | Participating cross currency swap and FX swap contracts [member]
Disclosure of Risks [line items]
Financial assets (liabilities) | ¥			¥ 167,476			¥ 190,421

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- Definition

The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities]

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