Share-based Payment - Summary of Fair Values for Warrant Grants (Detail) - Warrants [member]	12 Months Ended
Dec. 31, 2024 yr € / shares	Dec. 31, 2023 yr € / shares	Dec. 31, 2022 yr € / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected life of warrants (years) \| yr	6	6	6
Weighted average exercise price	€ 122.48	€ 91.07	€ 100.4
Bottom of range [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected volatility	50.00%	49.00%	48.00%
Risk-free interest rate	1.71%	2.40%	(0.08%)
Fair value of warrants granted in the year	€ 50.86	€ 37.34	€ 36.55
Top of range [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected volatility		51.00%	49.00%
Risk-free interest rate	2.57%	2.97%	2.54%
Fair value of warrants granted in the year	€ 70.39	€ 52.03	€ 60.85

Fair Value Of Warrants Granted

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- Definition

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph a
-Clause i
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-URIDate 2024-03-27

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- Definition

The option life of share options granted.

+ References

+ Details

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- Definition

The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

+ References

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The weighted average exercise price of other equity instruments (ie other than share options) exercisable in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard
-URIDate 2024-03-27

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