CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Net income	$ 30,369	$ 29,637
Other comprehensive income (loss), net of tax [Abstract]
Reclassification of unrealized gain on derivatives designated and qualified as cash flow hedges	(192)	(192)
Unrecognized net pension and other postretirement benefit plans gain	1,517	3,324
Reclassification of net pension and other postretirement benefit loss	1,054	806
Foreign currency translation adjustments	(20,188)	(52,949)
Total other comprehensive loss, net of tax	(17,809)	(49,011)
Total comprehensive income (loss)	12,560	(19,374)
Less: comprehensive loss attributable to noncontrolling interests	(326)	(324)
Comprehensive income (loss) attributable to Kennametal Shareholders	12,886	(19,050)
Accumulated Other Comprehensive (Loss) Income [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	63	63
Provision for income taxes	8,059	11,242
Reclassification out of Accumulated Other Comprehensive Loss [Member] | Accumulated Net (Loss) Gain from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive (Loss) Income [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	63	63
Reclassification out of Accumulated Other Comprehensive Loss [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive (Loss) Income [Line Items]
Provision for income taxes	$ (379)	$ (302)