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Business Acquisition - Schedule of Unaudited Pro Forma Combined Financial Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Business Combinations [Abstract]
Net loss and other comprehensive loss	$ (8,499)	$ (10,297)

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- Definition

Business acquisition, pro forma net income (loss) and other comprehensive income (loss).

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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