Leases - Supplemental Balance Sheet Information Related to Operating Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 17,181	$ 7,211
Other current liabilities	$ 3,727	$ 3,168
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent	us-gaap:OtherLiabilitiesCurrent
Other non-current liabilities	$ 16,572	$ 6,692
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent	us-gaap:OtherLiabilitiesNoncurrent
Total operating lease liabilities	$ 20,299	$ 9,860
Weighted average remaining lease term (in years)	7 years 2 months 12 days	3 years 10 months 24 days
Weighted average discount rate	5.80%	7.90%