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Acquisitions - Additional Information (Details)
In Thousands, unless otherwise specified
12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 1 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Jan. 03, 2015
USD ($)
Dec. 28, 2013
USD ($)
Dec. 29, 2012
USD ($)
Oct. 31, 2014
Certain assets of the screen cylinder business of a U.S.-based company
USD ($)
Dec. 30, 2013
European Producer of Creping and Coating Blades
USD ($)
Jan. 03, 2015
European Producer of Creping and Coating Blades
USD ($)
Jan. 03, 2015
European Producer of Creping and Coating Blades
EUR (€)
Jan. 03, 2015
2014 Acquisitions
USD ($)
Jan. 03, 2015
2013 Acquisitions
USD ($)
Dec. 28, 2013
2013 Acquisitions
USD ($)
Apr. 12, 2013
Companhia Brasileira de Tecnologia Industrial (CBTI)
USD ($)
Feb. 28, 2014
Companhia Brasileira de Tecnologia Industrial (CBTI)
USD ($)
Apr. 12, 2013
Companhia Brasileira de Tecnologia Industrial (CBTI)
USD ($)
May 03, 2013
Noss Group (Noss)
USD ($)
Jan. 03, 2015
Noss Group (Noss)
USD ($)
May 03, 2013
Noss Group (Noss)
USD ($)
Nov. 06, 2013
Carmanah
USD ($)
Jan. 03, 2015
Carmanah
USD ($)
Nov. 06, 2013
Carmanah
USD ($)
Business Acquisition [Line Items]                                      
Acquisition transaction costs $ 326us-gaap_BusinessCombinationAcquisitionRelatedCosts $ 1,802us-gaap_BusinessCombinationAcquisitionRelatedCosts                                  
Cash payments in acquisition 12,658us-gaap_PaymentsToAcquireBusinessesGross 67,453us-gaap_PaymentsToAcquireBusinessesGross 0us-gaap_PaymentsToAcquireBusinessesGross 9,174us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= kai_ScreenCylinderBusinessOfU.S.BasedCompanyMember
2,666us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= kai_EuropeanProducerofCrepingandCoatingBladesMember
    11,840us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= kai_A2014AcquisitionsMember
  68,271us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= kai_A2013AcquisitionsMember
8,140us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= kai_CompanhiaBrasileiraDeTecnologiaIndustrialCbtiMember
    7,196us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= kai_NossGroupNossMember
    52,281us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= kai_CarmanahMember
   
Cash acquired from acquisition         674us-gaap_CashAcquiredFromAcquisition
/ us-gaap_BusinessAcquisitionAxis
= kai_EuropeanProducerofCrepingandCoatingBladesMember
                           
Contingent consideration           1,210us-gaap_BusinessCombinationContingentConsiderationLiability
/ us-gaap_BusinessAcquisitionAxis
= kai_EuropeanProducerofCrepingandCoatingBladesMember
1,000us-gaap_BusinessCombinationContingentConsiderationLiability
/ us-gaap_BusinessAcquisitionAxis
= kai_EuropeanProducerofCrepingandCoatingBladesMember
                       
Contingent consideration, fair value           1,133kai_ContingentConsiderationFairValueDisclosure
/ us-gaap_BusinessAcquisitionAxis
= kai_EuropeanProducerofCrepingandCoatingBladesMember
                         
Weighted average useful life of acquired intangible assets 11 years             9 years                      
Goodwill 127,882us-gaap_Goodwill 131,915us-gaap_Goodwill 107,947us-gaap_Goodwill         3,463us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= kai_A2014AcquisitionsMember
  24,744us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= kai_A2013AcquisitionsMember
                 
Goodwill, expected tax deductible amount               2,004us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount
/ us-gaap_BusinessAcquisitionAxis
= kai_A2014AcquisitionsMember
                     
Post-closing adjustment payments, for prior acquisitions                 818us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentConsiderationTransferred
/ us-gaap_BusinessAcquisitionAxis
= kai_A2013AcquisitionsMember
                   
Cost of acquired entity, liabilities assumed                     484us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred
/ us-gaap_BusinessAcquisitionAxis
= kai_CompanhiaBrasileiraDeTecnologiaIndustrialCbtiMember
          171us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred
/ us-gaap_BusinessAcquisitionAxis
= kai_CarmanahMember
   
Additional payment, contingent consideration                             101us-gaap_BusinessCombinationConsiderationTransferredOther1
/ us-gaap_BusinessAcquisitionAxis
= kai_NossGroupNossMember
    717us-gaap_BusinessCombinationConsiderationTransferredOther1
/ us-gaap_BusinessAcquisitionAxis
= kai_CarmanahMember
 
Escrow deposit                         3,550us-gaap_EscrowDeposit
/ us-gaap_BusinessAcquisitionAxis
= kai_CompanhiaBrasileiraDeTecnologiaIndustrialCbtiMember
    1,970us-gaap_EscrowDeposit
/ us-gaap_BusinessAcquisitionAxis
= kai_NossGroupNossMember
    6,705us-gaap_EscrowDeposit
/ us-gaap_BusinessAcquisitionAxis
= kai_CarmanahMember
Escrow deposit disbursements                       $ 1,248kai_EscrowDepositDisbursements
/ us-gaap_BusinessAcquisitionAxis
= kai_CompanhiaBrasileiraDeTecnologiaIndustrialCbtiMember