CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Net income	$ 2,241	$ 70,128	$ 3,422	$ 184,798
Other comprehensive (loss) income, net of tax [Abstract]
Unrealized (loss) gain on derivatives designated and qualified as cash flow hedges	(1,000)	232	(144)	141
Reclassification of unrealized loss on derivatives designated and qualified as cash flow hedges	518	695	306	1,552
Unrecognized net pension and other postretirement benefit gain	2,573	51	2,123	1,246
Reclassification of net pension and other postretirement benefit loss	1,966	1,287	5,916	3,893
Foreign currency translation adjustments	(38,018)	(1,239)	(47,691)	(20,845)
Total other comprehensive (loss) income, net of tax	(33,961)	1,026	(39,490)	(14,013)
Total comprehensive (loss) income	(31,720)	71,154	(36,068)	170,785
Less: comprehensive (loss) income attributable to noncontrolling interests	(2,659)	1,612	(2,860)	4,154
Comprehensive (loss) income attributable to Kennametal Shareholders	$ (29,061)	$ 69,542	$ (33,208)	$ 166,631