Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Summary Of Significant Accounting Policies [Line Items]
Restricted cash	$ 33,311	$ 33,311	$ 743
Warranty period	1 year
Capitalized contract cost amortization period description	The Company applies the practical expedient to expense the commissions as incurred as the expected amortization period is one year or less.
Service-based options vesting period	3 years
Change in accounting principle, accounting standards update, adopted	true
Change in accounting principle, accounting standards update, adoption date	Jan. 01, 2021
Change in accounting principle, accounting standards update, immaterial effect	true
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201912Member
RSU
Summary Of Significant Accounting Policies [Line Items]
Service-based options vesting period	3 years
First Anniversary
Summary Of Significant Accounting Policies [Line Items]
Vesting rate	25.00%
First Anniversary | RSU
Summary Of Significant Accounting Policies [Line Items]
Vesting rate	25.00%