Restructuring and Related Charges - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 6,900	$ 31,700
Restructuring Charges	5,525	28,600
Restructuring and Related Cost, Cost Incurred to Date	154,500
Restructuring Reserve, Current	19,700		$ 27,300
Restructuring Reserve, Noncurrent	2,500
Industrial [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	4,030
Restructuring and Related Cost, Cost Incurred to Date	84,500
Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	412
Restructuring and Related Cost, Cost Incurred to Date	49,100
WIDIA [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,083
Restructuring and Related Cost, Cost Incurred to Date	13,600
Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	7,300
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Charges Recorded in Cost of Goods Sold	1,300	2,000
Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Charges Recorded in Cost of Goods Sold	100	$ 1,100
Other Restructuring [Member] | Industrial [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(30)
Other Restructuring [Member] | Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(7)
Other Restructuring [Member] | WIDIA [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ (6)