Name:	spfi_AdvanceNoticePeriodRequiredForNonRenewalOfEmploymentAgreement
Namespace Prefix:	spfi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Period of monthly premiums to continue existing healthcare coverage under COBRA in the event of involuntary termination within the 24-month period following a change in control, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	spfi_EmploymentAgreementPeriodOfMonthlyPremiumsToContinueExistingHealthcareCoverageUnderCOBRA
Namespace Prefix:	spfi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Period of monthly premiums to continue existing healthcare coverage under COBRA in the event of termination without cause or for good reason, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	spfi_EmploymentAgreementPeriodOfMonthlyPremiumsToContinueExistingHealthcareCoverageUnderCOBRAInEventOfTerminationWithoutCauseOrForGoodReason
Namespace Prefix:	spfi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Severance pay expressed as a percentage of the sum of annual base salary and annual target cash incentive bonus in the event of involuntary termination within the 24-month period following a change in control.

No definition available.

Name:	spfi_EmploymentAgreementSeverancePayAsPercentageOfSumOfAnnualSalaryAndBonusInCaseOfInvoluntaryTerminationWithin24MonthPeriodFollowingChangeOfControl
Namespace Prefix:	spfi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Severance pay expressed as a percentage of the sum of annual base salary and annual target cash incentive bonus in the event of termination without cause or for good reason.

No definition available.

Name:	spfi_EmploymentAgreementSeverancePayAsPercentageOfSumOfAnnualSalaryAndBonusInEventOfTerminationWithoutCauseOrForGoodReason
Namespace Prefix:	spfi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Period of automatic renewals specified in the employment agreement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	spfi_EmploymentAgreementTermOfAutomaticRenewals
Namespace Prefix:	spfi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The initial term period of employment agreement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	spfi_InitialTermOfEmploymentAgreement
Namespace Prefix:	spfi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.