Recently Issued and Adopted Accounting Standards - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Accounting Policies [Line Items]
Provision for credit losses	$ 310
Accounting Standards Update 2016-02 [Member]
Accounting Policies [Line Items]
Reversed deferred rent liability	2,000	$ 2,000
Provision for credit losses	$ 200