XML 16 R48.htm IDEA: XBRL DOCUMENT v2.4.1.9
Derivatives - Narrative (Details) (USD $)
3 Months Ended
Apr. 04, 2015
Mar. 29, 2014
Jan. 16, 2015
Forward Currency-Exchange Contracts [Abstract]      
Recognized gains $ 1,000us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments $ 36,000us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments  
Interest Rate Swap Agreements [Member]      
Interest Rate Swaps [Abstract]      
Rate of effectiveness of interest rate swap agreement (in hundredths) 100.00%kai_RateOfEffectivenessOfDerivativeAgreement
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
   
Maximum consolidated leverage ratio 3.5kai_MaximumConsolidatedLeverageRatio
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
   
Minimum consolidated interest coverage ratio 3kai_MinimumConsolidatedInterestChargeCoverageRatio
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
   
Unrealized loss on derivatives 364,000us-gaap_UnrealizedGainLossOnDerivatives
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
   
Foreign Exchange Forward [Member]      
Forward Currency-Exchange Contracts [Abstract]      
Maximum period over which entity manages its level of exposure of risk 24 months    
Three Month LIBOR [Member] | 2006 Swap [Member]      
Interest Rate Swaps [Abstract]      
Derivative, basis spread on variable rate 5.63%us-gaap_DerivativeBasisSpreadOnVariableRate
/ us-gaap_DerivativeInstrumentRiskAxis
= kai_SwapAgreement2006Member
/ us-gaap_VariableRateAxis
= kai_ThreeMonthLiborMember
   
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Swap Agreement 2015 [Member]      
Interest Rate Swaps [Abstract]      
Derivative, notional amount     $ 10,000,000invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= kai_SwapAgreement2015Member
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_CashFlowHedgingMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
Fixed rate of interest (in hundredths)     1.50%us-gaap_DerivativeFixedInterestRate
/ us-gaap_DerivativeInstrumentRiskAxis
= kai_SwapAgreement2015Member
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_CashFlowHedgingMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember