Leases - General (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) ft² Option building	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Area of leased space	170,000
Number of building leased | building	2
Tenant improvement allowance | $	$ 12,053	$ 15,600
Number of options to extend | Option	2
Option to extend	true
Renewal term	5 years
Ireland
Lessee, Lease, Description [Line Items]
Area of leased space	6,100
Option to terminate	true