Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Sales	$ 2,837,190	$ 2,589,373	$ 2,736,246
Cost of goods sold	1,940,187	1,744,369	1,741,996
Gross profit	897,003	845,004	994,250
Operating expense	589,768	527,850	561,490
Restructuring charges (Note 14)	17,608	0	0
Amortization of intangibles	26,195	20,760	16,351
Operating income	263,432	296,394	416,409
Interest expense	32,451	27,472	27,215
Other expense (income), net	2,172	2,313	(775)
Income before income taxes	228,809	266,609	389,969
Provision for income taxes	66,611	59,693	79,136
Net income	162,198	206,916	310,833
Less: Net income attributable to noncontrolling interests	3,832	3,651	3,603
Net income attributable to Kennametal	$ 158,366	$ 203,265	$ 307,230
PER SHARE DATA ATTRIBUTABLE TO KENNAMETAL SHAREOWNERS
Basic earnings per share	$ 2.01	$ 2.56	$ 3.83
Diluted earnings per share	$ 1.99	$ 2.52	$ 3.77
Dividends per share	$ 0.72	$ 0.64	$ 0.54
Basic weighted average shares outstanding	78,678	79,463	80,216
Diluted weighted average shares outstanding	79,667	80,612	81,439