Product Revenue Net - Schedule Of Each Customer As a Percentage Of Accounts Receivable (Detail) - Accounts Receivable [Member] - Credit Concentration Risk [Member]	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Customer 1 [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	25.00%	15.00%
Customer 2 [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	16.00%	10.00%
Customer 3 [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	28.00%	22.00%
Customer 4 [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	22.00%	29.00%
Customer 5 [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	9.00%	24.00%