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Stockholders' Equity (Narrative) (Details) (USD $)
 12 Months Ended 0 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Dec. 30, 2013
Jul. 31, 2014
Oct. 31, 2011
Dec. 18, 2006
Dec. 19, 2006
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Stock-based compensation expenses recognized $ 3,465,000scln_ShareBasedCompensationEmployeeAndNonEmployee $ 4,007,000scln_ShareBasedCompensationEmployeeAndNonEmployee $ 3,897,000scln_ShareBasedCompensationEmployeeAndNonEmployee            
Share-based compensation, income tax benefit 0us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense                
Unrecognized compensation expense, net of forfeitures 4,400,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized                
Weighted average grant date fair value of options per share $ 2.43us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue $ 2.56us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue $ 3.36us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue            
Estimated fair value of shares vested 3,200,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 3,800,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 4,100,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1            
Compensation expense weighted average period recognized 2 years 6 months 29 days                
Stock repurchased and retired, shares 3,822,434us-gaap_StockRepurchasedAndRetiredDuringPeriodShares 2,404,034us-gaap_StockRepurchasedAndRetiredDuringPeriodShares 4,709,651us-gaap_StockRepurchasedAndRetiredDuringPeriodShares            
Stock repurchased and retired, value 24,400,000us-gaap_StockRepurchasedAndRetiredDuringPeriodValue 12,519,000us-gaap_StockRepurchasedAndRetiredDuringPeriodValue 24,836,000us-gaap_StockRepurchasedAndRetiredDuringPeriodValue            
Share repurchase program, remaining amount authorized 300,000us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1                
Share repurchase program, approved increase           15,000,000scln_StockRepurchaseProgramIncreaseInAuthorizedAmount      
Share repurchase program, amount authorized 65,500,000us-gaap_StockRepurchaseProgramAuthorizedAmount1           50,500,000us-gaap_StockRepurchaseProgramAuthorizedAmount1    
Dividend distribution declared, number of preferred stock purchase right per outstanding share of common stock               1scln_DividendDistributionDeclaredNumberOfPreferredStockPurchaseRightPerEachOutstandingShareOfCommonStock  
Number of common stock entitled to purchase per preferred stock purchase right               0.001scln_DividendDistributionDeclaredNumberOfCommonStockEntitledToPurchasePerPreferredStockPurchaseRight  
Preferred stock par value $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare   0.001us-gaap_PreferredStockParOrStatedValuePerShare          
Agreement, period of required evaluation 3 years                
Series D Preferred Stock [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Preferred stock par value                 $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember
Preferred stock redemption price per share                 $ 25.00us-gaap_PreferredStockRedemptionPricePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember
Minimum percentage of company common stock being acquired for the rights to become exercisable                 15.00%scln_MinimumPercentageOfCompanyCommonStockBeingAcquiredForRightsToBecomeExercisable
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember
Common stock purchase discount percentage in the even of certain business combinations                 50.00%scln_CommonStockPurchaseDiscountPercentageInEvenOfCertainBusinessCombinations
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember
Redemmed price per share authorized by the board prior to a group or person acquiring 15% of common stock                 $ 0.001scln_RedemmedPricePerShareAuthorizedByBoardPriorToGroupOrPersonAcquiring15OfCommonStock
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesDPreferredStockMember
Two Company Board Members [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share based compensation costs   200,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_TitleOfIndividualAxis
= scln_TwoCompanyBoardMembersMember		              
Number of employees affected by plan modification   2us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationNumberOfEmployeesAffected
/ us-gaap_TitleOfIndividualAxis
= scln_TwoCompanyBoardMembersMember		              
Two Former Employees [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Award expiration       1 year 90 days        
Share based compensation costs   100,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_TitleOfIndividualAxis
= scln_TwoFormerEmployeesMember		              
Number of employees affected by plan modification   2us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationNumberOfEmployeesAffected
/ us-gaap_TitleOfIndividualAxis
= scln_TwoFormerEmployeesMember		              
Plan 2005 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares reserved for future issuance 13,600,000us-gaap_DeferredCompensationArrangementWithIndividualCommonStockReservedForFutureIssuance
/ us-gaap_AwardTypeAxis
= scln_TwoThousandFiveEquityIncentivePlanMember		                
Shares available for future issuance 2,241,000scln_DeferredCompensationArrangementWithIndividualCommonStockAvailableForFutureIssuance
/ us-gaap_AwardTypeAxis
= scln_TwoThousandFiveEquityIncentivePlanMember		                
Director Plan 2004 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares reserved for future issuance 1,765,000us-gaap_DeferredCompensationArrangementWithIndividualCommonStockReservedForFutureIssuance
/ us-gaap_AwardTypeAxis
= scln_TwoThousandFourOutsideDirectorsStockOptionPlanMember		                
Shares available for future issuance 0scln_DeferredCompensationArrangementWithIndividualCommonStockAvailableForFutureIssuance
/ us-gaap_AwardTypeAxis
= scln_TwoThousandFourOutsideDirectorsStockOptionPlanMember		                
Award expiration 10 years                
Employee Stock Purchase Plan [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Shares reserved for future issuance 1,300,000us-gaap_DeferredCompensationArrangementWithIndividualCommonStockReservedForFutureIssuance
/ us-gaap_AwardTypeAxis
= scln_EmployeeStockPurchasePlanMember		                
Shares available for future issuance 456,819scln_DeferredCompensationArrangementWithIndividualCommonStockAvailableForFutureIssuance
/ us-gaap_AwardTypeAxis
= scln_EmployeeStockPurchasePlanMember		                
Stock discount percentage 85.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate
/ us-gaap_AwardTypeAxis
= scln_EmployeeStockPurchasePlanMember		                
Stock plan maximum percentage withheld by employee 15.00%scln_DefinedContributionPlanMaximumAmountByEmployeePercentage
/ us-gaap_AwardTypeAxis
= scln_EmployeeStockPurchasePlanMember		                
Common stock shares that can be purchased 1,000scln_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesAvailableForPurchaseInOfferingPeriod
/ us-gaap_AwardTypeAxis
= scln_EmployeeStockPurchasePlanMember		                
Offering period 3 months                
Vesting period 3 months                
Stock Option [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Common stock, option exercises, shares 1,233,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		 574,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		 1,270,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		            
Intrinsic value of options at exercise 2,400,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		 1,300,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		 4,500,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		 1,300,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		          
Cash from stock option exercise 5,500,000us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		 1,600,000us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		 3,400,000us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember		            
Performance-Based Stock Options [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Award expiration 10 years                
Share based compensation expense related to performance-based options 100,000scln_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExpense
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember		 39,000scln_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExpense
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember		 36,000scln_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExpense
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember		            
RSUs [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Unrecognized compensation expense, net of forfeitures 300,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		                
Unrecognized compensation expense, weighted-average remaining period for recognition, in years 1 year 3 months 11 days                
Vesting percentage after one year 25.00%scln_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageAfterOneYear
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		                
Weighted average grant date fair value of options per share $ 4.52us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 $ 4.98us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 $ 6.49us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		            
Intrinsic value of options at exercise                   
Minimum [Member] | RSUs [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period 1 year                
Maximum [Member] | Two Company Board Members [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Award expiration       2 years 90 days        
Maximum [Member] | RSUs [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period 3 years                
Inventory [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Stock-based compensation expenses recognized $ 100,000scln_ShareBasedCompensationEmployeeAndNonEmployee
/ us-gaap_IncomeStatementLocationAxis
= scln_InventoryMember		 $ 100,000scln_ShareBasedCompensationEmployeeAndNonEmployee
/ us-gaap_IncomeStatementLocationAxis
= scln_InventoryMember		 $ 100,000scln_ShareBasedCompensationEmployeeAndNonEmployee
/ us-gaap_IncomeStatementLocationAxis
= scln_InventoryMember