Significant Accounting Policies Update (Details) $ in Millions	Jun. 28, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Total capacity under master lease agreement	$ 20.0
Real Estate [Member] \| Minimum
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	3 years
Real Estate [Member] \| Maximum
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	7 years
Machinery and Equipment [Member]
Lessee, Lease, Description [Line Items]
Lessee, Finance Lease, Term of Contract	5 years
Machinery and Equipment [Member] \| Minimum
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	3 years
Machinery and Equipment [Member] \| Maximum
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	5 years

Total capacity under master lease agreement

No definition available.

Name:	kamn_Totalcapacityundermasterleaseagreement
Namespace Prefix:	kamn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeFinanceLeaseTermOfContract1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_FairValueByAssetClassAxis=us-gaap_RealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByAssetClassAxis=us-gaap_MachineryAndEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: