Accounts receivable, net - Additional Information (Detail) - EUR (€) € in Millions	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Factoring arrangements for cash	€ 993.4	€ 0.0
Trade receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Factoring arrangements for cash	245.8	0.0
Irrevocable accounts receivable for down payments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Factoring arrangements for cash	€ 747.6	€ 0.0

Amount of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction, at the date of derecognition.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 4D
-Subparagraph (a)
-SubTopic 20
-Topic 860
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481326/860-20-50-4D

Name:	us-gaap_TransferOfFinancialAssetsAccountedForAsSalesAmountDerecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant