Equity and Convertible Debentures Financing - Repurchase of Securities (Details) - USD ($)	1 Months Ended			3 Months Ended
	Jun. 30, 2015	May. 31, 2015	Apr. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 18, 2013
Equity [Abstract]
Stock Repurchase Program, Authorized Amount							$ 350,000.00
($ in thousands) Value of Shares that May Yet Be Purchased Under the Plan or Program	$ 77,000	$ 77,000	$ 77,000	$ 77,000	$ 85,000	$ 256,000
Shares purchased (in shares)	0	0	3,907.00	3,907.000	76,600	1,353
Average Price Paid Per Share	$ 0.00	$ 0.00	$ 2.03	$ 2.03	$ 2.25	$ 1.98