Intangible Assets - (Intangible Assets Not Subject to Amortization) (Details) $ in Millions	3 Months Ended
Sep. 30, 2020 USD ($)
Intangible Assets
Goodwill written-off due to sale of a business unit	$ 25.6
Indefinite-lived intangible assets written-off due to sale of a business unit	$ 4.0

Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

Name:	us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration