Income Taxes (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2020	Jun. 30, 2019
Federal [Member]
Income Tax Authority [Line Items]
Prepaid income taxes	$ 10.7	$ 5.2
State and Local [Member]
Income Tax Authority [Line Items]
Prepaid income taxes	$ 1.1	$ 0.1

Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant