Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v3.20.2
Income Taxes - Additional Information (Detail) - Internal Revenue Service [Member] - USD ($)
1 Months Ended 9 Months Ended
Jul. 31, 2020
Sep. 30, 2020
Income Tax Contingency [Line Items]    
Open tax years   2011 2012 2013 2014
Wage based tax credits claimed amount to be disallowed results estimated additional tax due $ 2,300,000  
Wage-based tax credits claimed amount disallowed, tax years 2012 through 2014  
Reserve for tax position $ 0  
Minimum [Member]    
Income Tax Contingency [Line Items]    
Ongoing audit for tax years 2011  
Maximum [Member]    
Income Tax Contingency [Line Items]    
Ongoing audit for tax years 2014