Restructuring and Related Charges - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 11,800	$ 8,900	$ 43,400	$ 24,000
Restructuring Charges	8,800	3,500	37,347	12,600
Restructuring Charges Related to Inventory Disposals	300	(300)	300	(300)
Restructuring Reserve, Current	16,100		16,100		$ 15,700
Restructuring Reserve, Noncurrent	3,000		3,000
Industrial [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			21,298
Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			11,551
WIDIA [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			4,498
Ongoing Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	114,900		114,900
Ongoing Restructuring [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	155,000		155,000
Ongoing Restructuring [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 175,000		$ 175,000
Ongoing Restructuring [Member] | Industrial [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Percent	60.00%		60.00%
Restructuring and Related Cost, Cost Incurred to Date	$ 60,300		$ 60,300
Ongoing Restructuring [Member] | Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Percent	30.00%		30.00%
Restructuring and Related Cost, Cost Incurred to Date	$ 36,700		$ 36,700
Ongoing Restructuring [Member] | WIDIA [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Percent	5.00%		5.00%
Restructuring and Related Cost, Cost Incurred to Date	$ 10,600		$ 10,600
Ongoing Restructuring [Member] | Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Percent	5.00%		5.00%
Restructuring and Related Cost, Cost Incurred to Date	$ 7,300		$ 7,300
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Charges Recorded in Cost of Goods Sold	2,100	2,000	4,100	3,600
Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Charges Recorded in Cost of Goods Sold	$ 900	$ 3,400	2,000	$ 7,800
Other Restructuring [Member] | Industrial [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			(72)
Other Restructuring [Member] | Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			(36)
Other Restructuring [Member] | WIDIA [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			$ (15)