v3.20.2

Convertible Senior Notes - Schedule of Equity Components (Details) - Amortization of debt issuance cost $ in Thousands	Jun. 30, 2020 USD ($)
Debt Instrument [Line Items]
Note	$ 162,039
Issuance cost	(2,148)
Net amount recorded in equity	$ 159,891

X

- Definition

Debt Instrument, Convertible, Equity Component, Face Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	now_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Debt Instrument, Convertible, Equity Component, Unamortized Discount

+ References

No definition available.

+ Details

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Namespace Prefix:	now_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870

+ Details

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

X

- Definition

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.

+ References

No definition available.

+ Details

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

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: