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v3.21.2

Document and Entity Information | Nov. 09, 2021
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Document And Entity Information [Line Items] |
Entity Registrant Name | II-VI INC
Amendment Flag | false
Entity Central Index Key | 0000820318
Document Type | 8-K
Document Period End Date | Nov. 09, 2021
Entity Incorporation State Country Code | PA
Entity File Number | 001-39375
Entity Tax Identification Number | 25-1214948
Entity Address, Address Line One | 375 Saxonburg Boulevard
Entity Address, City or Town | Saxonburg
Entity Address, State or Province | PA
Entity Address, Postal Zip Code | 16056
City Area Code | (724)
Local Phone Number | 352-4455
Written Communications | false
Soliciting Material | false
Pre Commencement Tender Offer | false
Pre Commencement Issuer Tender Offer | false
Entity Emerging Growth Company | false
Common Stock [Member] |
Document And Entity Information [Line Items] |
Security 12b Title | Common Stock, no par value
Trading Symbol | IIVI
Security Exchange Name | NASDAQ
Series A Mandatory Convertible Preferred Stock [Member] |
Document And Entity Information [Line Items] |
Security 12b Title | Series A Mandatory Convertible Preferred Stock, no par value
Trading Symbol | IIVIP
Security Exchange Name | NASDAQ

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