Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Statement of Comprehensive Income [Abstract]
Net income	$ 38,558	$ 47,047
Unrealized loss on derivatives designated and qualified as cash flow hedges, net of income tax benefit of $0.4 million and $0.4 million, respectively	(570)	(571)
Reclassification of unrealized loss on expired derivatives designated and qualified as cash flow hedges, net of income tax benefit of $0.3 million and $0.0 million, respectively	409	85
Unrecognized net pension and other postretirement benefit loss, net of income tax benefit of $0.7 million and $0.4 million, respectively	(1,966)	(1,118)
Reclassification of net pension and other postretirement benefit loss, net of income tax benefit of $0.2 million and $1.4 million, respectively	484	2,414
Foreign currency translation adjustments, net of income tax expense of ($1.4) million and ($1.1) million, respectively	27,910	25,080
Total comprehensive income	64,825	72,937
Comprehensive income attributable to noncontrolling interests	535	1,287
Comprehensive income attributable to Kennametal Shareowners	$ 64,290	$ 71,650