Income Taxes (Narrative) (Details) - USD ($)	Dec. 31, 2015	Jun. 30, 2015
Income Tax Authority [Line Items]
Gross tax contingency reserve	$ 1,500,000
Estimated tax liabilities included in the gross tax contingency reserve	1,000,000
Interest and penalties included in the gross tax contingency reserve	500,000
Gross tax contingency reserve, classified as current liabilities	0
Gross tax contingency reserve, classified as noncurrent liabilities	1,500,000
Federal [Member]
Income Tax Authority [Line Items]
Prepaid taxes	4,900,000	$ 3,800,000
State and Local [Member]
Income Tax Authority [Line Items]
Prepaid taxes	$ 800,000	$ 600,000