Right of use assets & lease liabilities - Amounts recognized (Details) - EUR (€) € in Millions	12 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Amounts recognized in the consolidated income statement
Interest on lease liabilities	€ 8.8	€ 6.8	€ 3.7
Depreciation charge	65.2	84.0	54.5
Lease charges	€ 74.0	€ 90.8	€ 58.2

The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2023-01-01
-Paragraph 53
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_a&doctype=Standard
-URIDate 2023-03-23

Name:	ifrs-full_DepreciationRightofuseAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration