Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v3.20.4
Subsequent Events - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended
Feb. 04, 2021
Jan. 04, 2021
Jan. 31, 2021
Jan. 01, 2021
KDIAAM and KDYAAM [Member] | San Francisco California [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Business Combination, Consideration Transferred, Total $ 0.6      
Subsequent Event [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   100,000    
Subsequent Event [Member] | Payback Protection Program [Member] | Citizenship Amendment Act [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Debt instrument maximum borrowing capacity       $ 11.2
Proceeds from Issuance of debt     $ 8.4