v3.26.1
Summary of Significant Accounting Policies - Revenue Recognition (Details)
12 Months Ended
Jun. 30, 2026
d
Segment
Accounting Policies [Abstract]
Payment terms, minimum
30
Payment terms, maximum
90
Termination of warranty | Segment
30
X
- Definition
Payment terms, maximum
+ References
No definition available.
+ Details
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kmt_Paymenttermsmaximum
Namespace Prefix:
kmt_
Data Type:
xbrli:integerItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Payment terms, minimum
+ References
No definition available.
+ Details
Name:
kmt_Paymenttermsminimum
Namespace Prefix:
kmt_
Data Type:
xbrli:integerItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Termination of warranty.
+ References
No definition available.
+ Details
Name:
kmt_TerminationOfWarranty
Namespace Prefix:
kmt_
Data Type:
xbrli:integerItemType
Balance Type:
na
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_AccountingPoliciesAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration