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Cash and Cash Equivalents - Additional Information (Detail) ¥ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥) | Dec. 31, 2020 USD ($)
Disclosure of detailed cash and cash equivalents short term bank deposits current restricted cash and long term bank deposits [line items] |  |  |  |  |
Restricted cash used as collateral by the banks for the issuance of bills to suppliers | ¥ 171.1 |  | ¥ 231.1 |  | $ 26.4
Undrawn borrowing facilities | 491.9 |  | 295.0 |  | 76.0
Loan commitment fee incurred | ¥ | 0.1 |  | 0.2 | ¥ 0.2 |
Fixed deposits held with related party | ¥ 130.8 |  | ¥ 0.0 |  | $ 20.2
Bottom of range [member] |  |  |  |  |
Disclosure of detailed cash and cash equivalents short term bank deposits current restricted cash and long term bank deposits [line items] |  |  |  |  |
Interest rate on bank deposits | 0.10% |  | 1.50% |  | 0.10%
Loan commitment fee incurred | $ |  | $ 0.1 |  |  |
Top of range [member] |  |  |  |  |
Disclosure of detailed cash and cash equivalents short term bank deposits current restricted cash and long term bank deposits [line items] |  |  |  |  |
Interest rate on bank deposits | 1.55% |  | 3.15% |  | 1.55%

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- Definition The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 50 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_50_a&doctype=Standard -URIDate 2020-01-01 + Details
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