Stockholders' Equity (Series A Convertible Redeemable Preferred Stock) (Details) - $ / shares	Sep. 16, 2013	Jun. 30, 2015	Jun. 30, 2014
Preferred Class A
Class of Stock [Line Items]
Preferred stock, shares authorized	100,000
Preferred stock, par value (usd per share)	$ 1,000
Quarterly dividend rate	7.00%
Redemption price (in dollars per share)	$ 92.00
Preferred stock anniversary period	42 months
Share price	$ 80.00
Voting percentage required to create, issue or amend preferred stock	51.00%
Temporary equity, shares outstanding		0	0
Series B Convertible Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares authorized	50,000	50,000	50,000
Preferred stock, par value (usd per share)	$ 1,000	$ 1,000	$ 1,000
Redemption price (in dollars per share)	$ 92.00
Voting percentage required to create, issue or amend preferred stock	51.00%
Preferred stock, shares outstanding		0	0
Upon Change in Control | Preferred Class A
Class of Stock [Line Items]
Preferred stock anniversary period	42 months
Year One | Preferred Class A
Class of Stock [Line Items]
Preferred stock conversion percentage	8.00%
Year One | Upon Change in Control | Preferred Class A
Class of Stock [Line Items]
Preferred stock conversion percentage	8.00%
Year Two | Preferred Class A
Class of Stock [Line Items]
Preferred stock conversion percentage	6.00%
Year Two | Upon Change in Control | Preferred Class A
Class of Stock [Line Items]
Preferred stock conversion percentage	6.00%
Year Three | Preferred Class A
Class of Stock [Line Items]
Preferred stock conversion percentage	4.00%
Year Three | Upon Change in Control | Preferred Class A
Class of Stock [Line Items]
Preferred stock conversion percentage	4.00%
After Year Three, Before Forty Two Months | Preferred Class A
Class of Stock [Line Items]
Preferred stock conversion percentage	2.00%
After Year Three, Before Forty Two Months | Upon Change in Control | Preferred Class A
Class of Stock [Line Items]
Preferred stock conversion percentage	2.00%
After Forty Two Months | Preferred Class A
Class of Stock [Line Items]
Preferred stock conversion percentage	0.00%
After Forty Two Months | Upon Change in Control | Preferred Class A
Class of Stock [Line Items]
Preferred stock conversion percentage	0.00%
Maximum | Preferred Class A
Class of Stock [Line Items]
Percent of proceeds, which no convertible stock premium is due	33.00%