Prepaid expenses and other current assets representing withholding taxes .

No definition available.

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

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