Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Sep. 30, 2017

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Components of, and changes in accumulated other comprehensive loss

The components of, and changes in, AOCL were as follows, net of tax, for the three months ended September 30, 2017 (in thousands):

Attributable to Kennametal:	Postretirement benefit plans			Currency translation adjustment			Derivatives			Total
Balance, June 30, 2017	$	(189,038	)	$	(126,606	)	$	(8,048	)	$	(323,692	)
Other comprehensive income before reclassifications	(1,965		)	19,584			(619		)	17,000
Amounts reclassified from AOCL	1,779			—			396			2,175
Net current period other comprehensive   income	(186		)	19,584			(223		)	19,175
AOCL, September 30, 2017	$	(189,224	)	$	(107,022	)	$	(8,271	)	$	(304,517	)
Attributable to noncontrolling interests:
Balance, June 30, 2017	$	—		$	(2,164	)	$	—		$	(2,164	)
Other comprehensive income before   reclassifications	—			284			—			284
Net current period other comprehensive   income	—			284			—			284
AOCL, September 30, 2017	$	—		$	(1,880	)	$	—		$	(1,880	)

The components of, and changes in, AOCL were as follows, net of tax, for the three months ended September 30, 2016 (in thousands):

Attributable to Kennametal:	Postretirement benefit plans			Currency translation adjustment			Derivatives			Total
Balance, June 30, 2016	$	(212,163	)	$	(131,212	)	$	(9,134	)	$	(352,509	)
Other comprehensive income before reclassifications	630			749			(126		)	1,253
Amounts reclassified from AOCL	1,834			—			387			2,221
Net current period other comprehensive   income	2,464			749			261			3,474
AOCL, September 30, 2016	$	(209,699	)	$	(130,463	)	$	(8,873	)	$	(349,035	)
Attributable to noncontrolling interests:
Balance, June 30, 2016	$	—		$	(3,446	)	$	—		$	(3,446	)
Other comprehensive income before   reclassifications	—			415			—			415
Net current period other comprehensive   income	—			415			—			415
AOCL, September 30, 2016	$	—		$	(3,031	)	$	—		$	(3,031	)

Reclassification out of Accumulated Other Comprehensive Loss

Reclassifications out of AOCL for the three months ended September 30, 2017 and 2016 consisted of the following (in thousands):

	Three Months Ended September 30,
Details about AOCL components	2017			2016			Affected line item in the Income Statement
Gains and losses on cash flow hedges:
Forward starting interest rate swaps	$	566		$	545		Interest expense
Currency exchange contracts	(170		)	(158		)	Other expense, net
Total before tax	396			387
Tax impact	—			—			Provision for income taxes
Net of tax	$	396		$	387
Postretirement benefit plans:
Amortization of transition obligations	$	23		$	23		See note 9 for further details
Amortization of prior service credit	167			(119		)	See note 9 for further details
Recognition of actuarial losses	1,780			2,201			See note 9 for further details
Total before tax	1,970			2,105
Tax impact	(191		)	(271		)	Provision for income taxes
Net of tax	$	1,779		$	1,834

Income Tax Allocated to Each Component of Other Comprehensive Income [Table Text Block]

The amount of income tax allocated to each component of other comprehensive income for the three months ended September 30, 2017 and 2016:

				2017									2016
(in thousands)	Pre-tax			Tax impact			Net of tax			Pre-tax			Tax impact			Net of tax
Unrealized loss on derivatives designated and qualified as cash flow hedges	$	(619	)	$	—		$	(619	)	$	(126	)	$	—		$	(126	)
Reclassification of unrealized loss on expired derivatives designated and qualified as cash flow hedges	396			—			396			387			—			387
Unrecognized net pension and other postretirement benefit (loss) gain	(2,600		)	635			(1,965		)	716			(86		)	630
Reclassification of net pension and other postretirement benefit loss	1,970			(191		)	1,779			2,105			(271		)	1,834
Foreign currency translation adjustments	20,445			(577		)	19,868			1,164			—			1,164
Other comprehensive income	$	19,592		$	(133	)	$	19,459		$	4,246		$	(357	)	$	3,889