Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Schedule of Distribution of Total Operating Expenses by Geographical Area (Details)

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Summary of Significant Accounting Policies - Schedule of Distribution of Total Operating Expenses by Geographical Area (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Segment Reporting Information [Line Items]    
Operating expenses $ 12,894 $ 20,503
Ireland    
Segment Reporting Information [Line Items]    
Operating expenses 9,431 17,436
U.S.    
Segment Reporting Information [Line Items]    
Operating expenses $ 3,463 $ 3,067