Discontinued Operations - Additional Information (Details) $ in Millions	12 Months Ended
Jun. 30, 2018 USD ($)
Discontinued Operations And Disposal Groups [Abstract]
Proceeds from divestiture of businesses	$ 18.0
Transaction-related costs and expenses	$ 0.9

This element represents the cash inflow during the period from the sale of a component of the entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

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