Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Income (loss) before income taxes	$ 78,394	$ (90,331)	$ (57,753)
France [Member]
Income Taxes [Line Items]
Income (loss) before income taxes	6,622	(392)	(3,889)
United States [Member]
Income Taxes [Line Items]
Income (loss) before income taxes	101,241	(89,939)	(53,864)
Ireland [Member]
Income Taxes [Line Items]
Income (loss) before income taxes	$ (29,469)	$ 0	$ 0