Notes Payable, Long-Term Debt and Other Obligations Non Cash Interest Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Debt Disclosure [Abstract]
Amortization of debt discount	$ 12,456	$ 7,348
Amortization of deferred finance costs	708	597
Loss on extinguishment of 11% Senior Secured Notes	0	3,638
Accelerated interest expense on 6.75% Variable Interest Senior Convertible Note converted	3,679	0
Non-cash Interest Expense	$ 16,843	$ 11,583