Segment and Related Information - Additional Information (Detail)	12 Months Ended
Jun. 30, 2019 Segment Customer	Jun. 30, 2018 Customer	Jun. 30, 2017 Customer
Segment Reporting [Abstract]
Number of reportable segment \| Segment	2
Number of major customers comprising more than ten10 % of revenues. \| Customer	0	0	0

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration