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Cover Page
Jul. 01, 2022
Entity Information [Line Items]  
Entity Registrant Name II-VI Incorporated
Amendment Flag true
Entity Central Index Key 0000820318
Document Type 8-K/A
Document Period End Date Jul. 01, 2022
Entity Incorporation, State or 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
Amendment Description This Amendment No. 1 to Current Report on Form 8-K (“Amendment No. 1”) is being filed with the U.S. Securities and Exchange Commission (the “SEC”) solely to amend and supplement Item 9.01 of the Current Report on Form 8-K (the “Original Form 8-K”) filed by II-VI Incorporated (the “Company”) on July 1, 2022, which reported under Item 2.01 the completion of the Company’s previously announced acquisition of Coherent, Inc. (“Coherent”), among other events. Under Item 9.01 of the Original Form 8-K, the Company stated that the pro forma financial information required to be provided under Item 9.01 of Form 8-K would be provided by amendment to the Original 8-K not later than 71 days after the date the Original 8-K was required to be filed. This Amendment No. 1 provides such information required by Item 9.01.
Common Stock [Member]  
Entity Information [Line Items]  
Title of 12(b) Security Common Stock, no par value
Trading Symbol IIVI
Security Exchange Name NASDAQ
Series A Mandatory Convertible Preferred Stock [Member]  
Entity Information [Line Items]  
Title of 12(b) Security Series A Mandatory Convertible Preferred Stock, no par value
Trading Symbol IIVIP
Security Exchange Name NASDAQ