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DEBT - Schedule of Long-Term Debt (Detail) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Jun. 03, 2014
Jun. 01, 2014
Debt Instrument [Line Items]        
Total debt $ 1,659,215,000us-gaap_DebtAndCapitalLeaseObligations $ 1,431,043,000us-gaap_DebtAndCapitalLeaseObligations    
Less: current portion of total debt 131,969,000us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent 150,380,000us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent    
Long-term portion of total debt 1,527,246,000us-gaap_LongTermDebtAndCapitalLeaseObligations 1,280,663,000us-gaap_LongTermDebtAndCapitalLeaseObligations    
Obligations under capital leases        
Debt Instrument [Line Items]        
Total debt 9,185,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CapitalLeaseObligationsMember
7,343,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CapitalLeaseObligationsMember
   
$1.2 billion senior credit facility weighted average rate 1.50%, due in 2019        
Debt Instrument [Line Items]        
Total debt 459,975,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_SeniorCreditFacilityDueSeptemberTwentySixteenMember
272,358,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_SeniorCreditFacilityDueSeptemberTwentySixteenMember
   
Maximum borrowing capacity of line of credit facility 1,200,000,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= srcl_SeniorCreditFacilityDueSeptemberTwentySixteenMember
  1,200,000,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= srcl_SeniorCreditFacilityDueSeptemberTwentySixteenMember
1,000,000,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= srcl_SeniorCreditFacilityDueSeptemberTwentySixteenMember
Stated interest rate 1.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= srcl_SeniorCreditFacilityDueSeptemberTwentySixteenMember
     
$100 million private placement notes 5.64%, due in 2015        
Debt Instrument [Line Items]        
Total debt 100,000,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesFivePointSixFourPercentDueInTwentyFifteenMember
100,000,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesFivePointSixFourPercentDueInTwentyFifteenMember
   
Long-term debt, face amount 100,000,000.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesFivePointSixFourPercentDueInTwentyFifteenMember
     
Stated interest rate 5.64%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesFivePointSixFourPercentDueInTwentyFifteenMember
     
$175 million private placement notes 3.89%, due in 2017        
Debt Instrument [Line Items]        
Total debt 175,000,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesThreePointEightNinePercentDueInTwentySeventeenMember
175,000,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesThreePointEightNinePercentDueInTwentySeventeenMember
   
Long-term debt, face amount 175,000,000.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesThreePointEightNinePercentDueInTwentySeventeenMember
     
Stated interest rate 3.89%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesThreePointEightNinePercentDueInTwentySeventeenMember
     
$125 million private placement notes 2.68%, due in 2019        
Debt Instrument [Line Items]        
Total debt 125,000,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesTwoPointSixEightPercentDueInTwentyNineteenMember
125,000,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesTwoPointSixEightPercentDueInTwentyNineteenMember
   
Long-term debt, face amount 125,000,000.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesTwoPointSixEightPercentDueInTwentyNineteenMember
     
Stated interest rate 2.68%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesTwoPointSixEightPercentDueInTwentyNineteenMember
     
$225 million private placement notes 4.47%, due in 2020        
Debt Instrument [Line Items]        
Total debt 225,000,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesFourPointFourSevenPercentDueInTwentyTwentyMember
225,000,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesFourPointFourSevenPercentDueInTwentyTwentyMember
   
Long-term debt, face amount 225,000,000.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesFourPointFourSevenPercentDueInTwentyTwentyMember
     
Stated interest rate 4.47%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesFourPointFourSevenPercentDueInTwentyTwentyMember
     
$125 million private placement notes 3.26%, due in 2022        
Debt Instrument [Line Items]        
Total debt 125,000,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesThreePointTwoSixPercentDueInTwentyTwentyTwoMember
125,000,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesThreePointTwoSixPercentDueInTwentyTwentyTwoMember
   
Long-term debt, face amount 125,000,000.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesThreePointTwoSixPercentDueInTwentyTwentyTwoMember
     
Stated interest rate 3.26%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= srcl_PrivatePlacementNotesThreePointTwoSixPercentDueInTwentyTwentyTwoMember
     
Promissory notes and deferred consideration weighted average rate of 4.07% and weighted average maturity of 3.5 years        
Debt Instrument [Line Items]        
Total debt 279,590,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PromissoryNotesandDeferredConsiderationMember
252,195,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_PromissoryNotesandDeferredConsiderationMember
   
Weighted average interest rate 4.07%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_LongtermDebtTypeAxis
= srcl_PromissoryNotesandDeferredConsiderationMember
     
Weighted average maturity 3 years 6 months      
Foreign bank debt weighted average rate 9.48% and weighted average maturity of 1.8 years        
Debt Instrument [Line Items]        
Total debt $ 160,465,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_ForeignLongTermDebtMember
$ 149,147,000us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_LongtermDebtTypeAxis
= srcl_ForeignLongTermDebtMember
   
Weighted average interest rate 9.48%us-gaap_DebtWeightedAverageInterestRate
/ us-gaap_LongtermDebtTypeAxis
= srcl_ForeignLongTermDebtMember
     
Weighted average maturity 1 year 9 months 18 days