Acquisition (Details Textual) (TMB [Member], USD $)	3 Months Ended
Sep. 30, 2014	Nov. 04, 2013
TMB [Member]
Acquisitions (Textual) [Abstract]
Purchase Price		$ 607,000,000
Net sales	64,254,000
Net income attributable to Kennametal	$ 5,682,000

The value of all consideration given or received by the Entity in the significant acquisition or disposal.

No definition available.

Name:	us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant