Special Project Costs (Details Textual) - 2021 Restructuring Program - USD ($) $ in Millions	3 Months Ended
Jul. 31, 2022	Apr. 30, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Noncash Charge	$ 4.8
Restructuring and Related Cost, Noncash Charge Incurred to Date		$ 33.2
Employee-related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		$ 1.6

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b)(2))
-URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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