Leases - General (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) ft² Option building
Lessee, Lease, Description [Line Items]
Area of leased space	170,000
Number of building leased | building	2
Tenant improvement allowance | $	$ 15,561
Number of options to extend | Option	2
Renewal term	5 years
Option to terminate	true
Ireland
Lessee, Lease, Description [Line Items]
Area of leased space	6,100
Option to terminate	true