CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 56,247	$ 42,158	$ 114,670	$ 81,796
Other comprehensive (loss) income, net of tax [Abstract]
Unrealized gain (loss) on derivatives designated and qualified as cash flow hedges	170	(286)	(91)	(905)
Reclassification of unrealized loss on derivatives designated and qualified as cash flow hedges	262	1,007	857	1,403
Unrecognized net pension and other postretirement benefit gain (loss)	871	(625)	1,194	(2,590)
Reclassification of net pension and other postretirement benefit loss	1,298	1,569	2,606	3,348
Foreign currency translation adjustments	(3,400)	13,924	(19,605)	33,793
Total other comprehensive (loss) income, net of tax	(799)	15,589	(15,039)	35,049
Total comprehensive income	55,448	57,747	99,631	116,845
Less: comprehensive income attributable to noncontrolling interests	2,049	1,445	2,542	2,184
Comprehensive income attributable to Kennametal Shareholders	$ 53,399	$ 56,302	$ 97,089	$ 114,661