XML 73 R52.htm IDEA: XBRL DOCUMENT v3.21.1

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
BFLY Operations Inc
Losses on purchase commitments	$ 60.1	$ 9.5

X

- Definition

Amount of loss recognized on firm purchase commitment for inventory.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=116847112&loc=d3e4578-108314

+ Details

Name:	us-gaap_InventoryFirmPurchaseCommitmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	dei_LegalEntityAxis=bfly_BflyOperationsIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: