Fair Value Measurements (Details) - USD ($) $ in Millions	Dec. 31, 2016	Jun. 30, 2016
Deferred compensation plan assets	$ 1.8	$ 2.3
Other Current Assets [Member]
Deferred compensation plan assets	0.8	1.5
Other Assets [Member]
Deferred compensation plan assets	$ 1.0	$ 0.8

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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