CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Sales	$ 497,837	$ 638,970	$ 1,577,212	$ 2,009,543
Cost of goods sold	340,484	439,500	1,127,828	1,392,516
Gross profit	157,353	199,470	449,384	617,027
Operating expense	121,004	138,025	373,827	423,972
Restructuring and asset impairment charges (Notes 8 and 18)	7,142	175,435	128,498	565,837
Loss on divestiture (Note 5)	(2,557)	0	130,750	0
Amortization of intangibles	4,429	6,402	16,315	20,361
Operating income (loss)	27,335	(120,392)	(200,006)	(393,143)
Interest expense	7,113	7,760	20,895	23,929
Other (income) expense, net	(1,938)	(378)	(1,582)	32
Income (loss) before income taxes	22,160	(127,774)	(219,319)	(417,104)
Provision (benefit) for income taxes	5,465	(82,223)	(61,499)	(23,975)
Net income (loss)	16,695	(45,551)	(157,820)	(393,129)
Less: Net income attributable to noncontrolling interests	695	678	1,634	1,914
Net income (loss) attributable to Kennametal	$ 16,000	$ (46,229)	$ (159,454)	$ (395,043)
PER SHARE DATA ATTRIBUTABLE TO KENNAMETAL SHAREHOLDERS
Basic earnings (loss) per share	$ 0.20	$ (0.58)	$ (2.00)	$ (4.98)
Diluted earnings (loss) per share	0.20	(0.58)	(2.00)	(4.98)
Dividends per share	$ 0.20	$ 0.18	$ 0.60	$ 0.54
Basic weighted average shares outstanding	79,871	79,389	79,814	79,282
Diluted weighted average shares outstanding	80,224	79,389	79,814	79,282