XML 86 R74.htm IDEA: XBRL DOCUMENT v3.25.2

Schedule of Level 3 Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)

6 Months Ended

12 Months Ended

Jun. 30, 2025

Dec. 31, 2024

Mar. 31, 2025

Jun. 30, 2024

Mar. 31, 2024

Dec. 31, 2023

Subsidiary, Sale of Stock [Line Items]

Fair Value Balance

$ 165,876,119

$ 131,181,148

Fair Value Balance

3,677,291

^[1]

5,348,089

^[2]

Fixed maturity securities, available for sale, at estimated fair value (amortized cost of $393,340,165 and $376,012,071 for 2025 and 2024, respectively; net of allowance for credit losses of $486,986 and $420,993 for 2025 and 2024, respectively)

390,441,720

366,546,129

Loans Held For Sale [Member]

Subsidiary, Sale of Stock [Line Items]

Fair Value Balance

$ 165,876,119

$ 131,181,148

$ 139,834,226

$ 150,196,416

$ 112,678,958

$ 126,549,190

Fair value measurement, range of inputs, minimum value

84.00%

84.00%

Fair value measurement, range of inputs, maximum value

109.00%

109.00%

Fair value measurement with unobservable inputs reconciliation, recurring basis, asset and liability, weighted average

102.00%

102.00%

Net Derivatives Loan Commitments [Member]

Subsidiary, Sale of Stock [Line Items]

Fair value measurement, range of inputs, minimum value

68.00%

63.00%

Fair value measurement, range of inputs, maximum value

99.00%

100.00%

Fair value measurement with unobservable inputs reconciliation, recurring basis, asset and liability, weighted average

89.00%

83.00%

Fair Value Balance

$ 2,920,154

$ 2,313,210

2,787,750

2,574,863

2,145,040

1,583,262

Fixed Maturity Securities Available For Sale 1 [Member]

Subsidiary, Sale of Stock [Line Items]

Fixed maturity securities, available for sale, at estimated fair value (amortized cost of $393,340,165 and $376,012,071 for 2025 and 2024, respectively; net of allowance for credit losses of $486,986 and $420,993 for 2025 and 2024, respectively)

$ 1,149,738

$ 1,149,926

$ 1,150,304

$ 1,237,469

$ 1,232,187

$ 1,238,656

Fair value measurement, range of inputs, minimum value, price per share

$ 100.00

$ 100.00

Fair value measurement, range of inputs, maximum value, price per share

101.07

101.20

Fair value measurement with unobservable inputs reconciliation, recurring basis, asset and liability, weighted average, price per share

$ 100.36

$ 100.16

[1]	Included in other assets on the condensed consolidated balance sheets
[2]	Included in other assets on the condensed consolidated balance sheets

X

- Definition

Represents the monetary amount of Derivatives - interest rate lock commitments, as of the indicated date.

+ References

No definition available.

+ Details

Name:	SNFCA_DerivativesInterestRateLockCommitments
Namespace Prefix:	SNFCA_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value measurement with unobservable inputs reconciliation recurring basis asset and liability range of inputs minimum, price per share.

+ References

No definition available.

+ Details

Name:	SNFCA_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityOfInputsMinimum
Namespace Prefix:	SNFCA_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Fair value measurement with unobservable inputs reconciliation recurring basis asset and liability range of inputs maximum, price per share.

+ References

No definition available.

+ Details

Name:	SNFCA_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityRangeInputsMaximum
Namespace Prefix:	SNFCA_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Fair value measurement with unobservable inputs reconciliation recurring basis asset and liability range of inputs maximum.

+ References

No definition available.

+ Details

Name:	SNFCA_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityRangeOfInputsMaximum
Namespace Prefix:	SNFCA_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Fair value measurement with unobservable inputs reconciliation recurring basis asset and liability range of inputs minimum.

+ References

No definition available.

+ Details

Name:	SNFCA_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityRangeOfInputsMinimum
Namespace Prefix:	SNFCA_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Weighted Average, during the indicated time period.

+ References

No definition available.

+ Details

Name:	SNFCA_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityWeightedAverage
Namespace Prefix:	SNFCA_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Weighted Average, price per share, during the indicated time period.

+ References

No definition available.

+ Details

Name:	SNFCA_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAndLiabilityWeightedAveragePricePerShare
Namespace Prefix:	SNFCA_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481830/320-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount, before valuation allowance, of financing receivable classified as held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477011/948-310-45-1

+ Details

Name:	us-gaap_LoansReceivableHeldForSaleAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_SubsidiarySaleOfStockLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=SNFCA_LoansHeldForSale1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=SNFCA_NetDerivativesLoanCommitmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=SNFCA_FixedMaturitySecuritiesAvailableForSale1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: