CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Net income	$ 19,037	$ 24,328	$ 42,503	$ 54,697
Other comprehensive income (loss), net of tax [Abstract]
Reclassification of unrealized gain on derivatives designated and qualified as cash flow hedges	(169)	(192)	(392)	(385)
Unrecognized net pension and other postretirement benefit plans gain	3,191	(1,752)	616	(235)
Reclassification of net pension and other postretirement benefit loss	1,539	1,071	3,724	2,125
Foreign currency translation adjustments	(56,998)	31,791	(21,960)	11,604
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	1,169	(59)	1,085	(59)
Total other comprehensive loss, net of tax	(51,268)	30,859	(16,927)	13,050
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(32,231)	55,187	25,576	67,747
Less: comprehensive loss attributable to noncontrolling interests	(669)	1,888	1,397	1,560
Comprehensive income (loss) attributable to Kennametal Shareholders	(31,562)	53,299	24,179	66,187
Accumulated Other Comprehensive (Loss) Income [Line Items]
Provision for income taxes	7,927	(2,009)	15,833	6,050
Recognition of actuarial losses	(2,076)	(1,418)	(4,984)	(2,852)
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	(537)	(347)	(1,260)	(727)
Amortization of transition obligations	0	19	0
Recognition of actuarial losses	2,141	1,463	4,280	2,943
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax	$ 0	$ 0	$ 836	$ 0