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Stock-Based Compensation (Schedule Of Estimated Fair Value Of Options) (Details)
0 Months Ended
Jul. 15, 2013
Dec. 04, 2012
7/15/13 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Volatility 48.60%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ sppr_AwardOptionByGrantDateAxis
= sppr_JulyfifteenyeartwentythirteenMember
 
Expected dividend yield 6.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ sppr_AwardOptionByGrantDateAxis
= sppr_JulyfifteenyeartwentythirteenMember
 
Expected term (in years) 4 years  
Risk free interest rate 1.02%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ sppr_AwardOptionByGrantDateAxis
= sppr_JulyfifteenyeartwentythirteenMember
 
12/04/12 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Volatility   54.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ sppr_AwardOptionByGrantDateAxis
= sppr_DecemberfouryeartwentytwelveMember
Expected dividend yield   0.80%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ sppr_AwardOptionByGrantDateAxis
= sppr_DecemberfouryeartwentytwelveMember
Expected term (in years)   4 years
Risk free interest rate   0.49%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ sppr_AwardOptionByGrantDateAxis
= sppr_DecemberfouryeartwentytwelveMember