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Share-based Payments - Summary of Terms and Conditions, Relating to the Grants of the Non-vested Stock Award under the Equity Compensation Plan (Detail) | 12 Months Ended
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Dec. 31, 2020 shares
April, 2015 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 4,915
Vesting conditions | 15% first three anniversaries 25% fourth 30% fifth anniversary
Contractual life | 5 years
June, 2015 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 5,839
Vesting conditions | 15% first three anniversaries 25% fourth 30% fifth anniversary
Contractual life | 5 years
February, 2016 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 147,000
Vesting conditions | 15% first three anniversaries 25% fourth 30% fifth anniversary
Contractual life | 5 years
February, 2016 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 63,000
Vesting conditions | Fifth anniversary
Contractual life | 5 years
May, 2016 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 7,899
Vesting conditions | 15% first three anniversaries 25% fourth 30% fifth anniversary
Contractual life | 5 years
February, 2017 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 22,012
Vesting conditions | One-third every anniversary
Contractual life | 3 years
February, 2018 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 21,556
Vesting conditions | 7% first month 31% first three anniversaries
Contractual life | 3 years
February, 2018 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 14,379
Vesting conditions | 33% first three anniversaries
Contractual life | 3 years
February, 2018 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 1,316
Vesting conditions | 15% first three anniversaries 25% fourth 30% fifth anniversary
Contractual life | 5 years
July, 2018 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 6,104
Vesting conditions | Third anniversary
Contractual life | 3 years
February, 2017 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 11,980
Vesting conditions | One-third every anniversary
Contractual life | 3 years
February, 2017 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 2,237
Vesting conditions | Third anniversary
Contractual life | 3 years
February, 2019 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 15,951
Vesting conditions | 1% first month 33% first three anniversaries
Contractual life | 3 years
June, 2019 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 9,256
Vesting conditions | 33% first three anniversaries
Contractual life | 3 years
June, 2019 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 977
Vesting conditions | 33% first three anniversaries
Contractual life | 3 years
August, 2019 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 1,039
Vesting conditions | 33% first three anniversaries
Contractual life | 3 years
December, 2019 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 1,724
Vesting conditions | 100% first anniversary
Contractual life | 1 year
February, 2020 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 24,650
Vesting conditions | 1% first month 33% first three anniversaries
Contractual life | 3 years
December, 2020 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of instruments | 3,551
Vesting conditions | 100% first anniversary
Contractual life | 1 year

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- Definition The description of the maximum term of options granted for a type of share-based payment arrangement that existed at any time during the period. An entity with substantially similar types of share-based payment arrangements may aggregate this information. [Refer: Share-based payment arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 45 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The description of the vesting requirements for a type of share-based payment arrangement that existed at any time during the period. An entity with substantially similar types of share-based payment arrangements may aggregate this information. [Refer: Share-based payment arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 45 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The number of instruments granted in share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph IG23 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_IG23&doctype=Implementation%20Guidance -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 45 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45_a&doctype=Standard -URIDate 2020-01-01 + Details
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