CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 113,641	$ 123,366	$ 150,201
Unrealized gain on derivatives designated and qualified as cash flow hedges	(26)	0	0
Reclassification of unrealized gain on expired derivatives designated and qualified as cash flow hedges	725	770	770
Unrecognized net pension and other postretirement benefit plans (loss) gain	(10,100)	(10,402)	(4,163)
Reclassification of net pension and other postretirement benefit plans loss	4,227	3,373	8,929
Foreign currency translation adjustments	(14,164)	6,815	(91,185)
Total other comprehensive (loss) income, net of tax	(20,788)	(984)	(87,189)
Total comprehensive income	92,853	122,382	63,012
Less: comprehensive income attributable to noncontrolling interests	(3,777)	(4,315)	(2,013)
Comprehensive income attributable to Kennametal Shareholders	$ 89,076	$ 118,067	$ 60,999