Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

v3.21.1
Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Product Information [Line Items]    
Cash and cash equivalents, maturity description 90 days or less  
Cash Cash Equivalents and Marketable Securities [Member]    
Product Information [Line Items]    
Unrealized gain loss on investments $ 0 $ 0
Maximum [Member]    
Product Information [Line Items]    
Short Term Investment Contractual Maturity 1 year  
Minimum [Member]    
Product Information [Line Items]    
Long Term Investments Maturity Period 1 year