Preferred Stock, Common Stock and Stockholders' Equity - Summary of Estimated Fair Value of Shares to be Acquired under Employee Stock Purchase Plan (Detail) - Employee stock purchase plan [Member]	12 Months Ended
	Dec. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk free interest rate	0.13%
Expected term	6 months
Expected volatility of common stock	111.98%
Expected dividend yield	0.00%