Derivative Contracts - Derivative Gains (Losses) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Total	$ (16,556)	$ 10,967	$ (66,344)		$ 594
Common stock options/warrants
Derivative Instruments, Gain (Loss) [Line Items]
Total	(2,446)	(860)	1,425	[1]	(263)	[1]
Notes
Derivative Instruments, Gain (Loss) [Line Items]
Total	(14,220)	11,882	(67,950)		770
Forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total	$ 110	$ (55)	$ 181		$ 87

[1] Amount for 2014 includes the Pharmsynthez Note Receivable and the Purchase Option.