Segment Information, Geographic and Product Data - Schedule of Long-lived Assets by Geographic Segment (Details) - USD ($) $ in Millions	Jun. 30, 2025	Jun. 30, 2024
Geographic Data
Long-lived assets	$ 1,359.4	$ 1,335.2
United States
Geographic Data
Long-lived assets	1,354.4	1,330.0
Europe
Geographic Data
Long-lived assets	3.0	3.0
Mexico
Geographic Data
Long-lived assets	1.2	1.3
Asia Pacific
Geographic Data
Long-lived assets	0.4	0.5
Canada
Geographic Data
Long-lived assets	$ 0.4	$ 0.4

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 41
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-41

Name:	us-gaap_NoncurrentAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant