Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands		12 Months Ended
	Jun. 03, 2016	Jun. 30, 2016	Jun. 30, 2015
Goodwill [Line Items]
Balance-beginning of period		$ 195,894	$ 196,145
Goodwill acquired		75,900
Goodwill attributed to the RF business sold	$ (35,400)	(35,352)
Foreign currency translation		(2,687)	(251)
Balance-end of period		233,755	195,894
II-VI Laser Solutions
Goodwill [Line Items]
Balance-beginning of period		43,578	44,041
Goodwill acquired		75,900
Goodwill attributed to the RF business sold		(35,352)
Foreign currency translation		(21)	(463)
Balance-end of period		84,105	43,578
II-VI Photonics
Goodwill [Line Items]
Balance-beginning of period		99,426	99,214
Foreign currency translation		(2,666)	212
Balance-end of period		96,760	99,426
II- VI Performance Products
Goodwill [Line Items]
Balance-beginning of period		52,890	52,890
Balance-end of period		$ 52,890	$ 52,890