Nature of Operations and Liquidity - Additional Information (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2022 USD ($) Segment	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
Accounting Policies [Abstract]
Number of operating segment \| Segment	1
Net loss	$ 14,536	$ 22,438
Accumulated deficit	417,230		$ 402,694
Cash and cash equivalents	$ 34,817		$ 44,347

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

+ References + Details