Description of Business and Summary of Significant Accounting Policies (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) option	Jan. 01, 2022 USD ($)	Dec. 31, 2021 USD ($)
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Number of options to extend the lease term | option	1
Option to extend, lease term	5 years
Option to extend, lease term	5 years
Operating lease right-of-use assets	$ 46,370	$ 32,900	$ 0
Present value of minimum lease payments	47,903	35,100
Accumulated deficit	$ (1,471,319)		(1,137,851)
Cumulative Effect, Period of Adoption, Adjustment
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Accumulated deficit			$ 200
Revision of Prior Period, Accounting Standards Update, Adjustment
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Operating lease right-of-use assets		2,500
Build-to-suit lease assets		6,500
Build-to-suit lease liabilities		4,400
Deferred rent credit		$ 2,500