Defined Contribution Plan, Maximum Annual Contributions Per Employees Over 50 years Of Age, Amount

No definition available.

Name:	lite_DefinedContributionPlanMaximumAnnualContributionsPerEmployeesOver50YearsOfAgeAmount
Namespace Prefix:	lite_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the period of service required for eligibility under matching contributions by the employer.

+ References

No definition available.

+ Details

Name:	lite_DefinedContributionPlanRequisiteServicePeriod
Namespace Prefix:	lite_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

+ Details

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

- Definition

Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480482/715-20-55-18

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

+ Details

Name:	us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480794/715-70-50-1

+ Details

Name:	us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

+ Details

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

- Definition

Maximum amount the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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

- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Indicates tax status of defined contribution plan designed to provide retirement benefits.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanTaxStatusExtensibleList
Namespace Prefix:	us-gaap_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=us-gaap_ForeignPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_JP
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_CH
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_TH
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Employee Retirement Plans - Narrative (Details) - USD ($)	12 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jul. 02, 2022
Defined Contribution Plan Disclosure
Liability, defined benefit pension plan, contribute	$ 1,600,000
United States
Defined Contribution Plan Disclosure
Maximum contribution by an employee, as percentage of annual compensation	50.00%
Maximum amount of contribution by an employee in a calendar year	$ 23,000
Maximum amount of contribution by an Employee over 50 years of age in a calendar year	$ 30,500
Period of service required for eligibility under matching contributions	180 days
Company's matching contribution to the plan	$ 3,800,000	$ 3,800,000	$ 3,700,000
Defined Contribution Plan, Tax Status [Extensible Enumeration]	Qualified Plan [Member]
Foreign Plan
Defined Contribution Plan Disclosure
Company's matching contribution to the plan	$ 7,400,000	8,100,000	$ 7,700,000
Accumulated benefit obligation	19,600,000	$ 20,000,000.0
Japan
Defined Contribution Plan Disclosure
Accumulated benefit obligation	3,600,000
Switzerland
Defined Contribution Plan Disclosure
Accumulated benefit obligation	2,400,000
Thailand
Defined Contribution Plan Disclosure
Accumulated benefit obligation	$ 3,600,000