Deferred Revenue - Schedule of Deferred Revenue by Revenue Classification (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current deferred revenue
Total current deferred revenue	$ 60,994	$ 12,695
Non-current deferred revenue
Total non-current deferred revenue	219,332	704
Total current and non-current deferred revenue	280,326	13,399
Sequencing Revenue
Current deferred revenue
Total current deferred revenue	12,482	11,238
Non-current deferred revenue
Total non-current deferred revenue	1,459	516
Development Revenue
Current deferred revenue
Total current deferred revenue	48,512	1,457
Non-current deferred revenue
Total non-current deferred revenue	$ 217,873	$ 188