Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jan. 01, 2020
Summary Of Significant Accounting Policies [Line Items]
Right-of-use assets	$ 6,149	$ 6,835	[1],[2]
Operating lease liabilities	$ 16,037	2,251	[3]
ASU 2016-02
Summary Of Significant Accounting Policies [Line Items]
Right-of-use assets		6,800
Operating lease liabilities		17,700
Deferred rent		$ 10,900

[1] Represents capitalization of operating right-of-use assets

[2] Represents reclassification of deferred rent and incentives as a reduction to operating right-of-use assets

[3] Represents recognition of operating lease liabilities