LEASES - Lease cost (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Lease, Cost [Abstract]
Variable lease costs and short-term lease costs including rent forgiveness	$ 3.5	$ 5.3
Selling, general and administrative expenses
Lease, Cost [Abstract]
Lease costs	$ 18.2		$ 18.2

Amount of lease cost recognized by lessee for lease contract.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

Name:	us-gaap_LeaseCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration