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Commitments and Contingencies Revenue Sharing Agreement with the Commonwealth of Australia (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Loss Contingencies [Line Items]  
SH2G(A) aircraft returned from Australia 11kamn_SH2GAaircraftreturnedfromAustralia
Due to the Commonwealth of Australia $ 5.3kamn_DueToCommonwealthOfAustralia
Commonwealth of Australia [Member]  
Loss Contingencies [Line Items]  
Cumulative payments Contractual obligation $ 32.1kamn_CumulativepaymentsContractualobligation
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= kamn_CommonwealthOfAustraliaMember