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Note 18 - Income Taxes (Details) (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Note 18 - Income Taxes (Details) [Line Items]    
Income Tax Expense (Benefit) $ 16,891,000us-gaap_IncomeTaxExpenseBenefit $ 23,456,000us-gaap_IncomeTaxExpenseBenefit
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest 48,496,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest 61,615,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Deferred Tax Assets, Gross 275,100,000us-gaap_DeferredTaxAssetsGross  
Deferred Tax Assets, Valuation Allowance 1,400,000us-gaap_DeferredTaxAssetsValuationAllowance  
Deferred Tax Assets, Operating Loss Carryforwards 127,600,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards  
Gross Annual Deduction Limitation on Net Operating Loss Carryforwards 15,600,000spf_GrossAnnualDeductionLimitationOnNetOperatingLossCarryforwards  
Deferred Tax Assets, Other 147,500,000us-gaap_DeferredTaxAssetsOther  
Subject to Federal and State Net Operating Loss Carryforward Limitations [Member]    
Note 18 - Income Taxes (Details) [Line Items]    
Deferred Tax Assets, Operating Loss Carryforwards 112,600,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
/ us-gaap_ValuationAllowanceByDeferredTaxAssetAxis
= spf_SubjectToFederalAndStateNetOperatingLossCarryforwardLimitationsMember		  
Not Limited by Section 382 [Member]    
Note 18 - Income Taxes (Details) [Line Items]    
Deferred Tax Assets, Operating Loss Carryforwards $ 15,000,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
/ us-gaap_ValuationAllowanceByDeferredTaxAssetAxis
= spf_NotLimitedBySection382Member