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Auditor's Remuneration Paid to Ernst & Young LLP - Summary of Auditor's Remuneration Paid (Parenthetical) (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2018
Auditor's remuneration [abstract] |  |
Audit fees for specific procedures performed in relation to the implementation of new accounting standards |  | $ 0.4
Audit fee not yet incurred | $ 0.2 |

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- References No definition available. + Details
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- Definition Audit fee not yet incurred. + References No definition available. + Details
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- Definition Audit fees for specific procedures performed in relation to the implementation of new accounting standards. + References No definition available. + Details
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