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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