Convertible Preferred Stock - Additional Information (Detail) - $ / shares	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Class Of Stock [Line Items]
Preferred stock, shares authorized		20,000,000	20,000,000
Non-redeemable convertible preferred stock, par value		$ 0.001	$ 0.001
Series D Redeemable Convertible Preferred Stock [Member]
Class Of Stock [Line Items]
Redeemable convertible preferred stock shares authorized		50	50
Series B, Series G, Series I-1 and Series I-2 Non-redeemable Convertible Preferred Stock [Member]
Class Of Stock [Line Items]
Preferred stock, shares authorized		10,004,310	10,006,310
Non-redeemable convertible preferred stock, shares outstanding			5,255,124
Series I-1 [Member]
Class Of Stock [Line Items]
Preferred stock, shares authorized			2,000
Non-redeemable convertible preferred stock, shares issued	814
Non-redeemable convertible preferred stock, shares outstanding	814		814
Series I-1 [Member] | Common Stock [Member]
Class Of Stock [Line Items]
Conversion of common stock	465,300