General form of registration statement for all companies including face-amount certificate companies

Debt and Convertible Preferred Stock Warrants - Schedule of the Company's Outstanding Debt, Net of Debt Discounts (Detail)

v3.22.2
Debt and Convertible Preferred Stock Warrants - Schedule of the Company's Outstanding Debt, Net of Debt Discounts (Detail) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]      
Long-term Line of Credit $ 5,900 $ 5,900  
Total debt 66,754 66,933 $ 31,700
Less: debt, current (16,720) (10,750) (1,918)
Total debt, noncurrent 50,034 56,183 29,782
Silicon Valley Bank [Member] | Growth Capital Advance [Member]      
Debt Instrument [Line Items]      
Other Long-term Debt   0 2,586
Silicon Valley Bank [Member] | Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Long-term Line of Credit 5,947 5,947 5,947
SVB And Hercules Capital Inc [Member] | Mezanine Loan And Equity Security [Member]      
Debt Instrument [Line Items]      
Other Long-term Debt 59,331 59,237 0
Triple Point Venture Growth BDC Corp And Its Affiliates [Member] | Triple Point Loan Facility [Member]      
Debt Instrument [Line Items]      
Other Long-term Debt   0 19,933
Atel [Member] | Atel Loan Facility Tranche One [Member]      
Debt Instrument [Line Items]      
Other Long-term Debt   0 358
Atel [Member] | Atel Loan Facility Tranche Two [Member]      
Debt Instrument [Line Items]      
Other Long-term Debt   0 165
Atel [Member] | Atel Loan Facility Tranche Three [Member]      
Debt Instrument [Line Items]      
Other Long-term Debt 1,255 1,489 2,315
Atel [Member] | Atel Loan Facility Tranche Four [Member]      
Debt Instrument [Line Items]      
Other Long-term Debt $ 221 $ 260 $ 396