v3.26.1
Fair Value - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
12 Months Ended
Mar. 27, 2026
Dec. 31, 2025
Fair Value Disclosures [Abstract]
Fair value of level III, assets
$ 0
$ 0
X
- Definition
Assets categorized as level III during the reporting period.
+ References
No definition available.
+ Details
Name:
ck0000815917_UnobservableInputsAssetsFairValueDisclosure
Namespace Prefix:
ck0000815917_
Data Type:
xbrli:monetaryItemType
Balance Type:
debit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_FairValueDisclosuresAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration