Business acquisition equity interests issued or issuable number of shares issued per each share.

No definition available.

Name:	iivi_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssuedPerEachShare
Namespace Prefix:	iivi_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Business Combination, Consideration Transferred, Cash Paid Per Acquiree Share

+ References

No definition available.

+ Details

Name:	iivi_BusinessCombinationConsiderationTransferredCashPaidPerAcquireeShare
Namespace Prefix:	iivi_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Business Combination, Qualifying Termination, Acquiree, Holder of Converted Restricted Stock Units , Would have Vested in Year Two, Vesting Acceleration Percentage

+ References

No definition available.

+ Details

Name:	iivi_BusinessCombinationQualifyingTerminationAcquireeHolderOfConvertedRestrictedStockUnitsWouldHaveVestedInYearTwoVestingAccelerationPercentage
Namespace Prefix:	iivi_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Business Combination, Weighted Average Price Of Share, Trading Day Period Ending Prior To Closing

+ References

No definition available.

+ Details

Name:	iivi_BusinessCombinationWeightedAveragePriceOfShareTradingDayPeriodEndingPriorToClosing
Namespace Prefix:	iivi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Face amount per share of no-par value common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_CommonStockNoParValue
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Face amount or stated value per share of common stock.

+ References

+ Details

Name:	us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_PreferredStockNoParValue
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockConsiderationReceivedOnTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_StatementClassOfStockAxis=iivi_SeriesB1ConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=iivi_InvestmentAgreementBCPEWatsonDESPVLPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=iivi_SeriesB2ConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=iivi_OverAllotmentOptionIIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_BridgeLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=iivi_AmendedAndRestatedCommitmentLetterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=iivi_A500SeniorNotesDueDecember2029Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=iivi_CoherentIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=iivi_DebtFinancingUnderCommitmentLetterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Pending Coherent Acquisition (Details)			3 Months Ended
Pending Coherent Acquisition (Details)	Jun. 08, 2021 USD ($)	Mar. 31, 2021 USD ($) $ / shares shares	Jun. 30, 2022 d $ / shares shares	Mar. 31, 2022 $ / shares	Dec. 10, 2021 USD ($)	Dec. 02, 2021 USD ($)	Oct. 25, 2021 USD ($)	Jun. 30, 2021 $ / shares	Mar. 25, 2021 USD ($)
Business Acquisition [Line Items]
Common stock, no par value (in usd per share)				$ 0				$ 0
Series B-1 Convertible Preferred Stock
Business Acquisition [Line Items]
Preferred stock, par value (in usd per share)		$ 0
Series B-1 Convertible Preferred Stock \| Investment Agreement, BCPE Watson (DE) SPV, LP
Business Acquisition [Line Items]
Sale of stock, shares issued (in shares) \| shares		75,000
Preferred stock, par value (in usd per share)		$ 0
Sale of stock, price per share (in usd per share)		$ 10,000
Aggregate purchase price of stock sold \| $		$ 750,000,000
Series B-2 Convertible Preferred Stock \| Investment Agreement, BCPE Watson (DE) SPV, LP
Business Acquisition [Line Items]
Sale of stock, shares issued (in shares) \| shares		105,000
Preferred stock, par value (in usd per share)		$ 0
Aggregate purchase price of stock sold \| $		$ 1,050,000,000.00
Series B-2 Convertible Preferred Stock \| Over-Allotment Option II
Business Acquisition [Line Items]
Sale of stock, shares issued (in shares) \| shares		35,000
Aggregate purchase price of stock sold \| $	$ 2,150,000,000	$ 350,000,000
Bridge Loan
Business Acquisition [Line Items]
Aggregate principal amount \| $					$ 990,000,000
Amended and Restated Commitment Letter
Business Acquisition [Line Items]
Debt financing commitment \| $						$ 4,000,000,000
5.000% Senior Notes
Business Acquisition [Line Items]
Aggregate principal amount \| $					$ 990,000,000
Debt instrument, interest rate				5.00%	5.00%
Coherent Inc. \| Debt Financing Under Commitment Letter
Business Acquisition [Line Items]
Debt financing commitment \| $							$ 4,990,000,000		$ 5,100,000,000
Coherent Inc. \| Scenario Forecast \| Subsequent Event
Business Acquisition [Line Items]
Common stock, par value (in usd per share)			$ 0.01
Business combination, cash consideration paid per acquiree share			$ 220.00
Number of shares to be received (in shares) \| shares			0.91
Common stock, no par value (in usd per share)			$ 0
Business combination, weighted average price of share, trading day period ending prior to closing \| d			10
Business combination, qualifying termination, of acquiree, holder of converted restricted stock units, year two, acceleration vesting percentage			50.00%