Income Taxes - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
Cumulative loss period	5 years
Valuation allowance	$ 49,400,000
Outstanding tax audit		$ 0
State [Member]
Operating Loss Carryforwards [Line Items]
Federal income tax returns subject to examination description	State income tax returns are subject to examination for a period of three to four years after filing