Equity Incentive Plans (Details)	Jan. 01, 2022
Equity Incentive Plans
Percentage increase in equity awards authorized to be issued	4.00%

Represents percentage increase in the number of equity awards authorized to be issued.

No definition available.

Name:	bfly_IncreaseInNumberOfEquityAwardsAuthorizedToBeIssuedPercent
Namespace Prefix:	bfly_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration