Income Taxes - Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Income Taxes [Line Items]
Total income before income taxes	$ (13,392)	$ (14,563)
Ireland
Income Taxes [Line Items]
Total income before income taxes	(10,234)	(4,927)
United States
Income Taxes [Line Items]
Total income before income taxes	(3,443)	(9,835)
France
Income Taxes [Line Items]
Total income before income taxes	$ 285	$ 199

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Period Type:	duration