XML 75 R65.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Net Loss Per Share - Narrative (Details) - $ / shares shares in Millions | 1 Months Ended |
--- | --- | ---
May 31, 2018 | Jun. 30, 2018
Debt Conversion [Line Items] |  |
Conversion price on convertible debt (in USD per share) |  | $ 40.82
Convertible Senior Notes | Convertible debt |  |
Debt Conversion [Line Items] |  |
Conversion price on convertible debt (in USD per share) | $ 40.82 |
Number of shares covered in the Capped Call Transactions |  | 6.3
Cap price of the Capped Call Transactions (in dollars per share) | $ 62.80 |
Number of shares expected to be issued at conversion price under Capped Call Transactions |  | 4.1

X
- Definition Debt Instrument, Capped Call Transactions, Shares Coverage + References No definition available. + Details
Name: | fivn_DebtInstrumentCappedCallTransactionsSharesCoverage
Namespace Prefix: | fivn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Instrument, Convertible, Capped Call Transactions, Cap Price + References No definition available. + Details
Name: | fivn_DebtInstrumentConvertibleCappedCallTransactionsCapPrice
Namespace Prefix: | fivn_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument, Convertible, Shares Expected To Be Issued At Cap Price + References No definition available. + Details
Name: | fivn_DebtInstrumentConvertibleSharesExpectedToBeIssuedAtCapPrice
Namespace Prefix: | fivn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
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
Name: | us-gaap_DebtConversionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031898-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fivn_ConvertibleSeniorNotesDue2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |