Consolidated Statements of Equity (Parenthetical) $ in Thousands	Dec. 31, 2017 USD ($)
Common Stock
Discounts and issuance costs	$ 4,100

Represents the amount of discounts and issuance costs deducted from the proceeds.

No definition available.

Name:	vygr_DiscountsAndIssuanceCosts
Namespace Prefix:	vygr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant