XML 115 R93.htm IDEA: XBRL DOCUMENT v3.25.3

Guarantees (Details)	12 Months Ended
Guarantees (Details)	Sep. 30, 2025
Maximum
Product Warranty [Line Items]
Duration of product warranties	90 days

X

- Definition

Product Warranty [Line Items]

+ References

No definition available.

+ Details

Name:	fico_ProductWarrantyLineItems
Namespace Prefix:	fico_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Product Warranty Term

+ References

No definition available.

+ Details

Name:	fico_ProductWarrantyTerm
Namespace Prefix:	fico_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: