XML 98 R88.htm IDEA: XBRL DOCUMENT
v3.23.3

Summary of Unpaid Principal Balances of the Servicing Portfolio (Details) - USD ($) | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Servicing unpaid principal balance | $ 411,911,166 | $ 360,023,384

X
- Definition Represents the monetary amount of Servicing Unpaid Principal Balance, as of the indicated date. + References No definition available. + Details
Name: | SNFCA_ServicingUnpaidPrincipalBalance
Namespace Prefix: | SNFCA_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration