Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Detail)

v2.4.1.9
Long-Term Debt - Additional Information (Detail) (USD $)
 6 Months Ended 3 Months Ended 0 Months Ended 1 Months Ended 3 Months Ended
Mar. 28, 2015
Mar. 29, 2014
Dec. 28, 2013
Mar. 01, 2015
Feb. 13, 2012
Jan. 31, 2015
Mar. 28, 2015
Sep. 27, 2014
Dec. 05, 2013
Mar. 08, 2010
Components of long-term debt                    
Debt, aggregate principal amount $ 515,213,000us-gaap_LongTermDebt $ 545,335,000us-gaap_LongTermDebt         $ 515,213,000us-gaap_LongTermDebt $ 450,239,000us-gaap_LongTermDebt    
Debt redemption terms The Company may redeem some or all of the remaining 2018 Notes at any time on or after March 1, 2015 for 102.063% and on or after March 1, 2016 for 100%, plus accrued and unpaid interest.                  
Debt redemption price percentage 101.00%us-gaap_DebtInstrumentRedemptionPricePercentage                  
Debt interest terms Borrowings under the Credit Facility bear interest at an index based on LIBOR or, at the option of the Company, the Base Rate (defined as the highest of (a) the SunTrust prime rate, (b) the Federal Funds Rate plus 0.5% and (c) one-month LIBOR plus 1.00%), plus, in either case, an applicable margin based on the Company’s total outstanding borrowings. Such applicable margin for LIBOR-based borrowings fluctuates between 1.25%-1.75% (and was 1.25% at March 28, 2015) and such applicable margin for Base Rate borrowings fluctuates between 0.25%-0.75% (and was 0.25% at March 28, 2015).                  
Credit facility, base rate computation, option third description One-month LIBOR plus 1.00%), plus, in either case, an applicable margin based on the Company's total outstanding borrowings.                  
Debt instrument fixed charge coverage ratio 1.00cent_MinimumFixedChargeCoverageRatio           1.00cent_MinimumFixedChargeCoverageRatio      
Debt issuance cost 3,100,000us-gaap_DebtIssuanceCosts                  
Non-cash charge 537,000us-gaap_WriteOffOfDeferredDebtIssuanceCost 1,731,000us-gaap_WriteOffOfDeferredDebtIssuanceCost                
March 2015 [Member]                    
Components of long-term debt                    
Notes redemption price percentage 102.063%cent_NotesRedemptionPricePercentage
/ us-gaap_CreationDateAxis
= cent_MarchTwoThousandFifteenMember 		                 
March 2016 [Member]                    
Components of long-term debt                    
Notes redemption price percentage 100.00%cent_NotesRedemptionPricePercentage
/ us-gaap_CreationDateAxis
= cent_MarchTwoThousandSixteenMember 		                 
Revolving Credit Facility, Interest at Alternate Base Rate Plus a Margin of 0.75% to 1.75%, or LIBOR Plus a Margin of 1.75% to 2.75%, Final Maturity June 2016 [Member]                    
Components of long-term debt                    
Non-cash charge     1,700,000us-gaap_WriteOffOfDeferredDebtIssuanceCost
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember 		             
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member]                    
Components of long-term debt                    
Debt, aggregate principal amount 115,000,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		95,000,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		        115,000,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		   
Credit facility, additional borrowings available                 200,000,000cent_LineOfCreditFacilityAdditionalBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		 
Credit facility, maturity date Dec. 05, 2018                  
Borrowings outstanding 115,000,000cent_BorrowingsOutstandingAgainstLineOfCredit
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		          115,000,000cent_BorrowingsOutstandingAgainstLineOfCredit
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		     
Letters of credit outstanding 0cent_LettersOfCreditOutstanding
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		          0cent_LettersOfCreditOutstanding
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		     
Other letters of credit outstanding 12,600,000cent_OtherLettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		          12,600,000cent_OtherLettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		     
Borrowing availability 165,000,000us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		          165,000,000us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		     
Credit facility, base rate computation, option first description SunTrust prime rate                  
Credit facility, base rate computation, option second description Federal Funds Rate plus 0.5%                  
Credit facility, base rate computation, option second description, basis spread percentage 0.50%cent_LineOfCreditFacilityAlternateBaseRateComputationOptionTwoBasisSpreadPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		          0.50%cent_LineOfCreditFacilityAlternateBaseRateComputationOptionTwoBasisSpreadPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		     
Credit facility, basis percentage for calculation of variable rate spread 1.00%cent_LineOfCreditFacilityBasisPercentageForCalculationOfVariableRateSpread
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		          1.00%cent_LineOfCreditFacilityBasisPercentageForCalculationOfVariableRateSpread
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		     
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Option One [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_StatementScenarioAxis
= cent_OptionOneMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Option Two [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 0.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_StatementScenarioAxis
= cent_OptionTwoMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Base Rate Borrowings [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 3.50%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember 		          3.50%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember 		     
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | LIBOR-Based Borrowings [Member]                    
Components of long-term debt                    
Senior subordinated notes due date Dec. 31, 2018                  
Applicable interest rate on the credit facility 1.40%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Minimum [Member] | Option One [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_StatementScenarioAxis
= cent_OptionOneMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Minimum [Member] | Option Two [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 0.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_StatementScenarioAxis
= cent_OptionTwoMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Minimum [Member] | Base Rate Borrowings [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 0.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Minimum [Member] | LIBOR-Based Borrowings [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Maximum [Member] | Option One [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementScenarioAxis
= cent_OptionOneMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Maximum [Member] | Option Two [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementScenarioAxis
= cent_OptionTwoMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Maximum [Member] | Base Rate Borrowings [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Maximum [Member] | LIBOR-Based Borrowings [Member]                    
Components of long-term debt                    
Applicable interest rate on the credit facility 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember 		                 
Asset-based Revolving Credit Facility, Interest at LIBOR Plus a Margin of 1.25% to 1.75% or Base Rate Plus a Margin of 0.25% to 0.75%, Final Maturity December 2018 [Member] | Asset-based Revolving Credit Facility [Member]                    
Components of long-term debt                    
Credit facility, maximum principal amount                 390,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember 		 
Senior Subordinated Notes, Net of Unamortized Discount, Interest at 8.25%, Payable Semi-annually, Principal Due March 2018 [Member]                    
Components of long-term debt                    
Debt, aggregate principal amount 399,637,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		449,472,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		        399,637,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		449,529,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		  400,000,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Debt instrument interest rate stated, percentage 8.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		          8.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		    8.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Senior subordinated notes due date Mar. 01, 2018                  
Notes issue price percentage         98.501%cent_NotesIssuePricePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		         
Debt redemption price percentage       102.063%us-gaap_DebtInstrumentRedemptionPricePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		  102.063%us-gaap_DebtInstrumentRedemptionPricePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		       
Debt, redemption of principal amount       50,000,000cent_DebtInstrumentAggregatePrincipalAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		  50,000,000cent_DebtInstrumentAggregatePrincipalAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		       
Redemption date of senior subordinated notes Mar. 01, 2015           Mar. 01, 2018      
Charge recognized during debt redemption       1,600,000cent_DebtRedemptionTransactionFees
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		           
Senior Subordinated Notes, Net of Unamortized Discount, Interest at 8.25%, Payable Semi-annually, Principal Due March 2018 [Member] | Revolving Credit Facility, Interest at Alternate Base Rate Plus a Margin of 0.75% to 1.75%, or LIBOR Plus a Margin of 1.75% to 2.75%, Final Maturity June 2016 [Member]                    
Components of long-term debt                    
Additional issuance amount on senior notes         50,000,000cent_DebtInstrumentAdditionalBorrowings
/ us-gaap_CreditFacilityAxis
= us-gaap_LineOfCreditMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		         
Issuance price of additional senior subordinated notes 2018 Notes at a price of 98.501%, plus accrued interest from September 1, 2011, in a private placement.