Unusual and Infrequent Expenses (Details) $ / shares in Units, $ in Millions	12 Months Ended
Jun. 30, 2017 USD ($) $ / shares
Unusual or Infrequent Items [Abstract]
2017 Proxy Contest Expense \| $	$ 5.2
2017 Proxy Contest Expense, Per Share Impact, Gross \| $ / shares	$ 0.31

Per share amount of earnings, before tax, of an event or transaction that is unusual in nature or infrequent in occurrence, or both.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 20
-Section 45
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=64811373&loc=d3e14736-107780

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1311-109256

Name:	us-gaap_UnusualOrInfrequentItemEarningsPerShareImpactGross
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration