CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Net income	$ 20,710	$ 33,066	$ 75,407	$ 85,626
Other comprehensive income (loss), net of tax [Abstract]
Reclassification of unrealized gain on derivatives designated and qualified as cash flow hedges	(159)	(192)	(544)	(577)
Unrecognized net pension and other postretirement benefit plans gain	474	(1,059)	239	(1,106)
Reclassification of net pension and other postretirement benefit loss	1,066	842	3,191	2,480
Foreign currency translation adjustments	(19,143)	13,689	(7,541)	13,559
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	16	0	(43)	0
Total other comprehensive loss, net of tax	(17,746)	13,280	(4,698)	14,356
Total comprehensive income (loss)	2,964	46,346	70,709	99,982
Less: comprehensive loss attributable to noncontrolling interests	1,258	1,483	2,816	3,250
Comprehensive income (loss) attributable to Kennametal Shareholders	1,706	44,863	67,893	96,732
Accumulated Other Comprehensive (Loss) Income [Line Items]
Provision for income taxes	7,816	10,672	13,866	26,878
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	$ (366)	$ (277)	$ (1,093)	$ (841)