Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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Note 10. Stock Compensation Plans - Textuals (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Oct. 20, 2016	Oct. 03, 2014
Stock Compensation Plan, Pre-tax Compensation Cost	$ 4.0	$ 5.7	$ 5.3
Non-Employee Directors Stock Compensation Deferral Plan
Stock Compensation Plan, Shares Reserved				1,000,000
Stock Option and Incentive Plan 2014
Stock Compensation Plan, Shares Reserved					4,500,000