XML 98 R62.htm IDEA: XBRL DOCUMENT
v3.19.3

Senior Notes - Additional Information (Details) | Jul. 14, 2010 USD ($) Contract | Sep. 30, 2019 USD ($) | Sep. 30, 2018 USD ($) | May 08, 2018 USD ($)
--- | --- | --- | --- | ---
Debt Disclosure [Line Items] |  |  |  |
Debt Issuance Costs, Net |  | $ 5,200,000 | $ 6,100,000 |
July 2010 Senior Notes |  |  |  |
Debt Disclosure [Line Items] |  |  |  |
Senior Notes issued in a private placement to a group of institutional investors | $ 245,000,000 |  |  |
Number of series of Senior Notes issued | Contract | 4 |  |  |
Debt Instrument, Covenant, Leverage Ratio, Maximum | 3.00 |  |  |
Debt Instrument, Covenant, Fixed Charge Coverage Ratio, Minimum | 2.50 |  |  |
May 2018 Senior Notes |  |  |  |
Debt Disclosure [Line Items] |  |  |  |
Senior Notes issued in a private placement to a group of institutional investors |  |  |  | $ 400,000,000

X
- Definition Debt Disclosure [Line Items] + References No definition available. + Details
Name: | fico_DebtDisclosureLineItems
Namespace Prefix: | fico_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument, Covenant, Fixed Charge Coverage Ratio, Minimum + References No definition available. + Details
Name: | fico_DebtInstrumentCovenantFixedChargeCoverageRatioMinimum
Namespace Prefix: | fico_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument, Covenant, Leverage Ratio, Maximum + References No definition available. + Details
Name: | fico_DebtInstrumentCovenantLeverageRatioMaximum
Namespace Prefix: | fico_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Series + References No definition available. + Details
Name: | fico_NumberOfSeries
Namespace Prefix: | fico_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
Name: | us-gaap_DeferredFinanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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