CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Sales	$ 524,021	$ 675,631	$ 1,079,376	$ 1,370,572
Cost of goods sold	383,215	476,173	787,345	953,015
Gross profit	140,806	199,458	292,031	417,557
Operating expense	123,580	137,459	252,824	285,947
Restructuring and asset impairment charges (Notes 8 and 18)	112,237	388,839	121,357	390,402
Loss on divestiture (Note 5)	133,307	0	133,307	0
Amortization of intangibles	5,638	6,931	11,886	13,959
Operating loss	(233,956)	(333,771)	(227,343)	(272,751)
Interest expense	6,803	7,960	13,782	16,170
Other (income) expense, net	(732)	2,223	353	409
Loss before income taxes	(240,027)	(343,954)	(241,478)	(289,330)
(Benefit) provision for income taxes	(71,216)	43,751	(66,964)	58,248
Net loss	(168,811)	(387,705)	(174,514)	(347,578)
Less: Net income attributable to noncontrolling interests	416	597	939	1,236
Net loss attributable to Kennametal	$ (169,227)	$ (388,302)	$ (175,453)	$ (348,814)
PER SHARE DATA ATTRIBUTABLE TO KENNAMETAL SHAREHOLDERS
Basic loss per share	$ (2.12)	$ (4.89)	$ (2.20)	$ (4.40)
Diluted loss per share	(2.12)	(4.89)	(2.20)	(4.40)
Dividends per share	$ 0.20	$ 0.18	$ 0.40	$ 0.36
Basic weighted average shares outstanding	79,840	79,343	79,784	79,229
Diluted weighted average shares outstanding	79,840	79,343	79,784	79,229