Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Schedule of Distribution of Long-Lived Assets by Geographical Area (Details)

v3.19.1
Summary of Significant Accounting Policies - Schedule of Distribution of Long-Lived Assets by Geographical Area (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Segment Reporting Information [Line Items]    
Long lived assets $ 12,226 $ 4,810
Ireland    
Segment Reporting Information [Line Items]    
Long lived assets 9,970 4,565
U.S.    
Segment Reporting Information [Line Items]    
Long lived assets $ 2,256 $ 245