Debt Obligations (11.5% Convertible Bonds) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014 11.5% Convertible Bonds [Member]	Mar. 31, 2014 7.5% Fixed Rate [Member]	Dec. 31, 2013 7.5% Fixed Rate [Member]
Debt Instrument [Line Items]
Interest rate	11.50%	7.50%	7.50%
Conversion price	$ 16.52
Principal amount of notes	$ 1,000
Conversion rate	61
Debt maturity date	Mar. 31, 2014