CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Net (loss) income	$ (6,229)	$ 56,247	$ 1,181	$ 114,670
Other comprehensive income (loss), net of tax [Abstract]
Unrealized gain (loss) on derivatives designated and qualified as cash flow hedges	461	170	856	(91)
Reclassification of unrealized (gain) loss on derivatives designated and qualified as cash flow hedges	(393)	262	(212)	857
Unrecognized net pension and other postretirement benefit (loss) gain	(3,056)	871	(449)	1,194
Reclassification of net pension and other postretirement benefit loss	1,990	1,298	3,950	2,606
Foreign currency translation adjustments	25,751	(3,400)	(9,674)	(19,605)
Total other comprehensive income (loss), net of tax	24,753	(799)	(5,529)	(15,039)
Total comprehensive income (loss)	18,524	55,448	(4,348)	99,631
Less: comprehensive income (loss) attributable to noncontrolling interests	247	2,049	(201)	2,542
Comprehensive income (loss) attributable to Kennametal Shareholders	$ 18,277	$ 53,399	$ (4,147)	$ 97,089