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Commitments and Contingencies - Schedule of Capital and Other Commitment (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Property, plant and equipment	$ 116,527

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- References

No definition available.

+ Details

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Period Type:	duration

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- Definition

Capital expenditures contracted for but not recognized.

+ References

No definition available.

+ Details

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Namespace Prefix:	viot_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration