Name:	twlo_LossContingencyNumberOfClassOfIndividualsSentOrReceivedCommunications
Namespace Prefix:	twlo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

The number of the entity's customers whose accounts are allegedly involved in a litigation case.

No definition available.

Name:	twlo_LossContingencyNumberOfCustomersAccountsInvolvedInLitigationCase
Namespace Prefix:	twlo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Amount awarded to other party in judgment or settlement of litigation.

No definition available.

Name:	us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585