Property, Plant and Equipment - Additional Information (Detail) $ in Millions	Mar. 31, 2016 USD ($)
Property Plant And Equipment [Abstract]
Reclassification carrying value of land and building	$ 1.2

Reclassifications of land and building from prepaid and other current assets to property plant and equipment.

No definition available.

Name:	iivi_ReclassificationsOfLandAndBuildingFromPrepaidAndOtherCurrentAssetsToPropertyPlantAndEquipment
Namespace Prefix:	iivi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant