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Restructuring Costs - Summary of Changes in Accrued Restructing Costs (Details) (Papermaking Systems [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended
Apr. 04, 2015
Mar. 29, 2014
Restructuring Reserve [Roll Forward]    
Provision   $ 328us-gaap_RestructuringCharges
Severance Costs [Member]
   
Restructuring Reserve [Roll Forward]    
Balance at beginning of period 103us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_StatementBusinessSegmentsAxis
= kai_PapermakingSystemsMember
 
Provision 84us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_StatementBusinessSegmentsAxis
= kai_PapermakingSystemsMember
(11)us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_StatementBusinessSegmentsAxis
= kai_PapermakingSystemsMember
Usage (54)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_StatementBusinessSegmentsAxis
= kai_PapermakingSystemsMember
 
Currency translation (11)us-gaap_RestructuringReserveTranslationAdjustment
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_StatementBusinessSegmentsAxis
= kai_PapermakingSystemsMember
 
Balance at end of period 122us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_StatementBusinessSegmentsAxis
= kai_PapermakingSystemsMember
 
Other Costs [Member]
   
Restructuring Reserve [Roll Forward]    
Provision   $ 339us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_FacilityClosingMember
/ us-gaap_StatementBusinessSegmentsAxis
= kai_PapermakingSystemsMember