Employee Benefit Plans (Schedule of PSUs Earned and Vested Based on Stock Price Appreciation (Stock Price PSUs)) (Parenthetical) (Details) - Stock Price PSU	12 Months Ended
	Jun. 30, 2019 $ / shares
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average adjusted closing stock price	$ 8.96
At least $8.96 but less than $11.63 | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average adjusted closing stock price	8.96
At least $8.96 but less than $11.63 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average adjusted closing stock price	11.63
At least $11.63 but less than $13.15 | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average adjusted closing stock price	11.63
At least $11.63 but less than $13.15 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average adjusted closing stock price	13.15
At least $13.15 but less than $16.56 | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average adjusted closing stock price	13.15
At least $13.15 but less than $16.56 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average adjusted closing stock price	16.56
$16.56 or more
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average adjusted closing stock price	$ 16.56