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Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fair Value Inputs Level 3 [Member]
Financial Instruments [Line Items]
Financial instruments net	$ 0	$ 0

X

- Definition

Fair value of asset after deduction of liability.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Financial Instruments.

+ References

No definition available.

+ Details

Name:	vff_FinancialInstrumentsLineItems
Namespace Prefix:	vff_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: