Lumentum (LITE) 10-Q 17 Nov 15 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Sep. 26, 2015	Oct. 24, 2015
Document And Entities Information [Abstract]
Entity Registrant Name	Lumentum Holdings Inc.
Entity Central Index Key	1,633,978
Document Type	10-Q
Document Fiscal Period Focus	Q1
Document Period End Date	Sep. 26, 2015
Amendment Flag	false
Current Fiscal Year End Date	--06-27
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		58,975,368
Document Fiscal Year Focus	2,016

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Sep. 26, 2015	Sep. 27, 2014
Income Statement [Abstract]
Net revenue		$ 212.6	$ 219
Cost of sales		144	146.8
Amortization of acquired technologies		1.7	1.9
Gross profit		66.9	70.3
Operating expenses:
Research and development		34.4	35
Selling, general and administrative		34	28.3
Restructuring and related charges		1	1.8
Total operating expenses		69.4	65.1
(Loss) income from operations		(2.5)	5.2
Unrealized gain on derivative liability		2.2
Interest and other income (expense), net		(0.2)	(0.3)
(Loss) income before income taxes		(0.5)	4.9
(Benefit) provision for income taxes		(0.3)	0.6
Net (loss) income		(0.2)	4.3
Dividends on Series A Preferred Stock		0.1
Accretion of Series A Preferred Stock		9.7
Net (loss) income attributable to common shareholders		$ (10)	$ 4.3
Net (loss) income per share available to common shareholders
Basic and Diluted	[1]	$ (0.17)	$ 0.07
Shares used in per share calculation available to common shareholders
Basic and Diluted	[1]	58.8	58.8
[1]	On August 1, 2015, JDS Uniphase Corporation (“JDSU”) distributed 47.1 million shares, or 80.1% of the outstanding shares of common stock of Lumentum Holdings Inc. (“we”, “our”, “Company” or “Lumentum”) to existing holders of JDSU common stock. JDSU was renamed Viavi Solutions Inc. (“Viavi”) and at the time of the distribution, retained 11.7 million shares, or 19.9% of Lumentum’s outstanding shares. Basic and diluted net (loss) income per share for the three months ended September 27, 2014 is calculated using the shares of Lumentum common stock outstanding on August 1, 2015, as if such shares were outstanding for the entire period.

CONSOLIDATED STATEMENTS OF OPE3

CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (Parenthetical) shares in Millions	Aug. 01, 2015shares
Income Statement [Abstract]
Shares distributed during period net (in shares)	47.1
Percentage of outstanding shares distributed	80.10%
Shares retained (in shares)	11.7
Ownership percentage	19.90%

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (unaudited) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net (loss) income	$ (0.2)	$ 4.3
Other comprehensive (loss), net of tax
Foreign currency translation adjustment	(5.5)	(2.9)
Net change in accumulated other comprehensive loss	(5.5)	(2.9)
Comprehensive (loss) income	$ (5.7)	$ 1.4

CONSOLIDATED BALANCE SHEETS (un

CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Millions	Sep. 26, 2015	Jun. 27, 2015
Current assets:
Cash and cash equivalents	$ 142.1	$ 14.5
Accounts receivable, net	156.6	150.5
Inventories	102.9	99.7
Prepayments and other current assets	52.1	46.1
Total current assets	453.7	310.8
Property, plant and equipment, net	141.5	143.2
Goodwill and intangibles, net	25.3	27.4
Deferred income taxes, net	28.9	30.3
Other non-current assets	0.3	0.9
Total assets	649.7	512.6
Current liabilities:
Accounts payable	83	77.9
Accrued payroll and related expenses	20.8	17.7
Income taxes payable	3.6	3.7
Accrued expenses	14.5	11.5
Other current liabilities	10.7	11.4
Total current liabilities	132.6	122.2
Other non-current liabilities	16.3	9.8
Total liabilities	$ 148.9	$ 132
Commitments and contingencies (Note 13)
Mezzanine equity:
Total mezzanine equity	$ 33.8
Stockholders’ equity:
Viavi net investment		$ 368.1
Common stock, $0.001 par value, 990,000,000 authorized shares, 58,970,645 shares issued and outstanding as of September 26, 2015, and no shares issued and outstanding as of June 27, 2015	0.1
Additional paid-in capital	448.5
Retained earnings	11.4
Accumulated other comprehensive income	7	12.5
Total stockholders’ equity	467	380.6
Total liabilities, mezzanine and stockholders’ equity	649.7	$ 512.6
Series A Preferred Stock
Mezzanine equity:
Non-controlling Interest Redeemable convertible Series A preferred stock, $0.001 par value, 10,000,000 authorized shares; 35,805 shares issued and outstanding as of September 26, 2015, and no shares issued and outstanding as of June 27, 2015	$ 33.8

CONSOLIDATED BALANCE SHEETS (u6

CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - $ / shares	Sep. 26, 2015	Jun. 27, 2015
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	990,000,000	990,000,000
Common stock, shares issued	58,970,645	0
Common stock, shares outstanding	58,970,645	0
Redeemable Convertible Series A Preferred Stock
Non-controllable interest, preferred stock, par value	$ 0.001	$ 0.001
Non-controllable interest, preferred stock, shares authorized	10,000,000	10,000,000
Non-controllable interest, preferred stock, shares issued	35,805	0
Non-controllable interest, preferred stock, shares outstanding	35,805	0

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
OPERATING ACTIVITIES:
Net (loss) income	$ (0.2)	$ 4.3
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation expense	11.7	10.4
Stock-based compensation	6	4.9
Unrealized gain on derivative liability	(2.2)
Amortization of acquired technologies and other intangibles	1.8	2
Disposal of property, plant and equipment	0.2	(0.1)
Changes in operating assets and liabilities:
Accounts receivable	(8.6)	(12.4)
Inventories	(5.4)	1.6
Prepayments and other current and non-currents assets	(6.4)	(4.6)
Deferred taxes, net	0.2	1.9
Accounts payable	8.3	12.1
Accrued payroll and related expenses	3.6	(2.6)
Income taxes payable		(14.7)
Accrued expenses and other current and non-current liabilities	1.6	(2.4)
Net cash provided by operating activities	10.6	0.4
INVESTING ACTIVITIES:
Purchase of property, plant and equipment	(13.9)	(13.8)
Net cash used in investing activities	(13.9)	(13.8)
FINANCING ACTIVITIES:
Net transfers from Viavi	132.9	9
Payment of financing obligation related to acquisition	2.3
Proceeds from the exercise of stock options	0.1
Net cash provided by financing activities	130.7	9
Effect of exchange rates on cash and cash equivalents	0.2	(0.7)
Increase (decrease) in cash and cash equivalents	127.6	(5.1)
Cash and cash equivalents at beginning of period	14.5	19.9
Cash and cash equivalents at end of period	$ 142.1	$ 14.8

CONSOLIDATED STATEMENTS OF MEZZ

CONSOLIDATED STATEMENTS OF MEZZANINE AND STOCK AND STOCKHOLDERS' EQUITY (unaudited) - USD ($) shares in Millions, $ in Millions	Total	Viavi Net Investment	Series A Preferred Stock	Series A Preferred StockViavi Net Investment	Non-Controlling Interest Redeemable Convertible Series A Preferred Stock	Non-Controlling Interest Redeemable Convertible Series A Preferred StockSeries A Preferred Stock	Common Stock	Additional Paid-In Capital	Additional Paid-In CapitalSeries A Preferred Stock	Retained Earnings	Retained EarningsSeries A Preferred Stock	Accumulated Other Comprehensive Income (Loss)
Balance in beginning, value at Jun. 28, 2014	$ 335.6	$ 312.9										$ 22.7
Net (loss) income	(3.4)	(3.4)
Other comprehensive loss	(10.2)											(10.2)
Transfer from Viavi	58.6	58.6
Balance in ending, value at Jun. 27, 2015	380.6	368.1										12.5
Pre-capitalization activity:
Net (loss) income	(3.4)	(3.4)
Other comprehensive loss	(10.2)											(10.2)
Transfer from Viavi	58.6	58.6
Post-capitalization activity:
Net (loss) income	(3.4)	(3.4)
Other comprehensive loss	(10.2)											(10.2)
Net (loss) income | Pre Capitalization Activity	(11.7)	(11.7)
Net (loss) income | Post Capitalization Activity	11.5									$ 11.5
Net (loss) income	(0.2)
Other comprehensive loss | Pre Capitalization Activity	(4.7)											(4.7)
Other comprehensive loss | Post Capitalization Activity	(0.8)											(0.8)
Other comprehensive loss	(5.5)
Transfer from Viavi | Pre Capitalization Activity	136.1	136.1
Balance in ending, value at Sep. 26, 2015	467				$ 33.8		$ 0.1	$ 448.5		11.4		7
Balance (in shares) at Sep. 26, 2015							59
Pre-capitalization activity:
Net (loss) income | Pre Capitalization Activity	(11.7)	(11.7)
Net (loss) income | Post Capitalization Activity	11.5									11.5
Net (loss) income	(0.2)
Other comprehensive loss | Pre Capitalization Activity	(4.7)											(4.7)
Other comprehensive loss | Post Capitalization Activity	(0.8)											(0.8)
Other comprehensive loss	(5.5)
Transfer from Viavi | Pre Capitalization Activity	136.1	136.1
Total pre-capitalization activity | Pre Capitalization Activity	119.7	124.4										(4.7)
Post-capitalization activity:
Issuance of common stock shares reclassification to separation of parent company investments | Post Capitalization Activity							58.8
Issuance of common stock and reclassification of parent company investment in connection with the Separation | Post Capitalization Activity		(456.7)					$ 0.1	456.6
Issuance of redeemable convertible Series A preferred stock, net of issuance costs of $2.0 million | Post Capitalization Activity			$ (35.8)	$ (35.8)		$ 33.8
Bifurcation of the redeemable convertible Series A preferred stock’s derivative | Post Capitalization Activity						(9.7)
Bifurcation of the redeemable convertible Series A preferred stock’s derivative			9.7
Redemption value of the redeemable convertible Series A preferred stock | Post Capitalization Activity			(9.7)			$ 9.7			$ (9.7)
Redemption value of the redeemable convertible Series A preferred stock			35.8
Net (loss) income | Pre Capitalization Activity	(11.7)	(11.7)
Net (loss) income | Post Capitalization Activity	11.5									11.5
Net (loss) income	(0.2)
Other comprehensive loss | Pre Capitalization Activity	(4.7)											(4.7)
Other comprehensive loss | Post Capitalization Activity	(0.8)											(0.8)
Other comprehensive loss	(5.5)
Release of common stock shares upon vesting of restricted stock units, shares | Post Capitalization Activity							0.3
Shares withheld for the withholdings on vesting of restricted stock units, value | Post Capitalization Activity	(2.9)							(2.9)
Shares withheld for the withholdings on vesting of restricted stock units, shares | Post Capitalization Activity							(0.1)
Exercise of stock options | Post Capitalization Activity	0.1							0.1
Stock-based compensation | Post Capitalization Activity	4.4							4.4
Accrued dividend for redeemable convertible Series A preferred stock | Post Capitalization Activity			$ (0.1)								$ (0.1)
Total post-capitalization activity, shares | Post Capitalization Activity							59
Total post-capitalization activity | Post Capitalization Activity	$ (33.3)	$ (492.5)			$ 33.8		$ 0.1	$ 448.5		$ 11.4		$ (0.8)

CONSOLIDATED STATEMENTS OF MEZ9

CONSOLIDATED STATEMENTS OF MEZZANINE AND STOCK AND STOCKHOLDERS' EQUITY (unaudited) (Parenthetical) $ in Millions	3 Months Ended
	Sep. 26, 2015USD ($)
Convertible Series A Preferred Stock
Issuance costs	$ 2

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	3 Months Ended
	Sep. 26, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Text Block]	ERROR: Could not retrieve Word content for note block

Description of Business and Sum

Description of Business and Summary of Significant Accounting Policies	3 Months Ended
	Sep. 26, 2015
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Description of Business and Summary of Significant Accounting Policies	Note 1. Description of Business and Summary of Significant Accounting Policies Description of Business We are an industry leading provider of optical and photonic products addressing a range of end markets including data communications (“Datacom”) and telecommunications (“Telecom”) networking, and industrial and commercial lasers (“commercial lasers”) for manufacturing, inspection and life-science applications. Basis of Presentation On August 1, 2015, Lumentum became an independent publicly-traded company through the distribution by JDSU to its stockholders of 80.1% of our outstanding common stock (the “Separation”). Each JDSU stockholder of record as of the close of business on July 27, 2015 received one share of Lumentum common stock for every five shares of JDSU common stock held on the record date. JDSU was renamed Viavi and at the time of the distribution retained ownership of 19.9% of Lumentum’s outstanding shares. Lumentum was incorporated in Delaware as a wholly owned subsidiary of Viavi on February 10, 2015 and is comprised of the former communications and commercial optical products (“CCOP”) segment and WaveReady product lines of Viavi. Lumentum’s Registration Statement on Form 10 was declared effective by the U.S. Securities and Exchange Commission (“SEC”) on July 16, 2015. Lumentum’s common stock began trading “regular-way” under the ticker “LITE” on the NASDAQ stock market on August 4, 2015. On July 31, 2015, prior to the Separation, Viavi transferred substantially all of the assets and liabilities and operations of the communications and commercial optical products (“CCOP”) segment and WaveReady product lines to Lumentum (the “Capitalization"). Combined financial statements for periods prior to the Capitalization were prepared on a stand-alone basis and were derived from Viavi’s consolidated financial statements and accounting records. For the three months ended September 26, 2015, expenses were allocated to us using estimates that we consider to be a reasonable reflection of the utilization of services provided to or benefits received by us. The preparation of the consolidated financial statements in accordance with GAAP in the U.S. requires management to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and accompanying notes. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Although these estimates are based on management’s best knowledge of current events and actions that may impact the company in the future, actual results may be different from the estimates. Our critical accounting policies are those that affect our financial statements materially and involve difficult, subjective or complex judgments by management. Those policies are revenue recognition, inventory valuation, allocation methods and allocated expenses from Viavi, valuation of goodwill and other intangible assets, share-based compensation, retirement and post-retirement plan assumptions, restructuring, warranty and accounting for income taxes. See “Note 3. Related Party Transactions” in the consolidated financial statements for further information regarding the relationships we had with Viavi and other Viavi entities. Our consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC and are in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”). In the opinion of management, these consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, which are necessary for a fair statement of the consolidated financial statements for the periods shown. The results of operations for such periods are not necessarily indicative of the results expected for the full year or for any future periods. Fiscal Years We utilize a 52-53 week fiscal year ending on the Saturday closest to June 30th. Our fiscal 2016 is a 53-week year ending on July 2, 2016. Our fiscal 2015 ended on June 27, 2015 and was a 52-week year. Our fiscal 2014 ended on June 28, 2014 and was a 52-week year. Principles of Consolidation The consolidated financial statements include certain assets and liabilities that were historically held at the Viavi level which were specifically identifiable or otherwise attributable to us. All intra-company transactions within our business were eliminated. All significant transactions between us and other businesses of Viavi prior to separation were reflected as net transfers to and from Viavi in the consolidated statement of stockholders’ equity and as a component of financing activities in the consolidated statement of cash flows Use of Estimates The preparation of our consolidated financial statements in conformity with U.S. GAAP requires Management to make estimates and assumptions that affect the reported amount of assets and liabilities at the date of the financial statements, the reported amount of net revenue and expenses and the disclosure of commitments and contingencies during the reporting periods. We base estimates on historical experience and on various assumptions about the future believed to be reasonable based on available information. Our reported financial position or results of operations may be materially different under changed conditions or when using different estimates and assumptions, particularly with respect to significant accounting policies. If estimates or assumptions differ from actual results, subsequent periods are adjusted to reflect more current information. Accounting Policies There have been no material changes in our significant accounting policies during the three months ended September 26, 2015 compared to the significant accounting policies described in our Annual Report on Form 10-K/A for the fiscal year ended June 27, 2015. The accompanying unaudited interim consolidated financial statements and accompanying related notes should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K/A for the fiscal year ended June 27, 2015.

Recently Issued Accounting Pron

Recently Issued Accounting Pronouncements	3 Months Ended
	Sep. 26, 2015
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Recently Issued Accounting Pronouncements	Note 2. Recently Issued Accounting Pronouncements In July 2015, the Financial Accounting Standards Board (“FASB”) issued guidance to change the subsequent measurement of inventory from lower of cost or market to lower of cost and net realizable value. The guidance is effective for us in the first quarter of fiscal 2018. Earlier application is permitted as of the beginning of an interim or annual reporting period. We are evaluating the impact of adopting this new accounting guidance on our consolidated financial statements. In May 2015, the FASB issued guidance to remove the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using a net asset value per share practical expedient. The guidance is effective for us in the first quarter of fiscal 2017 and may apply to certain pension assets. The guidance will be applied retrospectively and earlier adoption is permitted. We are evaluating the impact of adopting this new accounting guidance on our consolidated financial statements. In April 2015, the FASB issued new authoritative guidance to provide a practical expedient that permits the entity to measure defined benefit plan assets and obligations using the month-end that is closest to the entity’s fiscal year-end and apply that practical expedient consistently from year to year. This guidance is effective for us in the first quarter of fiscal 2017. Prospective application is required, and early adoption is permitted. We are evaluating the impact of adopting this new accounting guidance on our consolidated financial statements. In May 2014, the FASB issued new authoritative guidance related to revenue recognition. This guidance will replace current U.S. GAAP guidance on this topic and eliminate industry-specific guidance. The new revenue recognition guidance provides a unified model to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration for which the entity expects to be entitled in exchange for those goods or services. This guidance allows for either full retrospective adoption or modified retrospective adoption. The FASB deferred the effective date for this guidance by one year to December 15, 2017 for annual reporting periods beginning after that. Earlier application of this guidance is permitted but not before the original date of December 15, 2016. We are evaluating the impact that this new accounting guidance will have on our consolidated financial statements and the related disclosures.

Related Party Transactions

Related Party Transactions	3 Months Ended
	Sep. 26, 2015
Related Party Transactions [Abstract]
Related Party Transactions	Note 3. Related Party Transactions Transactions with Viavi Agreements with Viavi On July 31, 2015, the Company entered into a Supply Agreement with Viavi providing that each party will supply certain products at pre-determined prices, and providing Viavi with research and development services at cost plus a specified markup. The Company has also agreed to supply office space via a sublease agreement to Viavi. The sublease income and research and development cost reimbursements are each recorded as contra operating expenses in the Consolidated Statements of Operations for the three months ended September 26, 2015. The Supply Agreement contains a $15.0 million purchase commitment with Viavi for certain products, and for the three months ended September 26, 2015, the Company has made no purchases against this commitment. During this period, the Company recognized revenue of $0.8 million due to products sold to Viavi. Subsequent to September 26, 2015, the Company purchased $4.6 million in product from Viavi against the $15.0 million purchase commitment. For the three months ended September 26, 2015, the Company recorded $0.5 million in research and development cost reimbursement and $0.1 million in sublease rental income. As of September 26, 2015, the Company had $0.8 million in accounts receivable due from . On July 31, 2015, the Company also entered into the following agreements with Viavi: a) Contribution Agreement which identifies the assets to be transferred, the liabilities to be assumed and the contracts to be assigned and it provides for when and how these transfers, assumptions and assignments will occur. b) Separation and Distribution Agreement which c) Tax Matters Agreement which d) Employee Matters Agreement which governs the compensation and employee benefit obligations with respect to the current and former employees of Lumentum and Viavi, the treatment of equity based compensation and generally allocates liabilities and responsibilities relating to employee compensation, benefit plans and programs. The Employee Matters Agreement provides that employees of Lumentum will participate in benefit plans sponsored or maintained by Lumentum. e) Securities Purchase Agreement, which also includes Amada Holdings Co., Ltd. (“Amada”) as a party, which sets forth the terms for the sale by Viavi to Amada of shares of Series A Preferred Stock of Lumentum Inc., our wholly-owned subsidiary, following the Separation. f) Intellectual Property Matters Agreement which outlines the intellectual property rights of Lumentum and Viavi following the Separation, as well as non-compete restrictions between Viavi and Lumentum. Allocated Costs The consolidated statements of operations includes our direct expenses for cost of sales, research and development, sales and marketing, and administration as well as allocations of expenses arising from shared services and infrastructure provided by Viavi to us. These allocated expenses include costs of information technology, human resources, accounting, legal, real estate and facilities, corporate marketing, insurance, treasury and other corporate and infrastructure services. In addition, other costs allocated to us include restructuring and stock-based compensation related to Viavi’s corporate and shared services employees and are included in the table below. These expenses are allocated to us using estimates that we consider to be a reasonable reflection of the utilization of services or benefits received by our business. The allocation methods include revenue, headcount, square footage, actual consumption and usage of services and others. Allocated costs included in the accompanying consolidated statements of operations are as follows ( in millions Three Months Ended September 26, 2015 September 27, 2014 Selling, general and administrative 11.7 16.8 Interest and other (income) expenses, net (0.1 ) 0.1 Interest expense 0.1 0.2 Total allocated costs $ 11.7 $ 17.1

Earnings Per Share

Earnings Per Share	3 Months Ended
	Sep. 26, 2015
Earnings Per Share [Abstract]
Earnings Per Share	Note 4. Earnings Per Share The following table sets forth the computation of basic and diluted net (loss) income per share ( in millions, except per share data Three Months Ended September 26, 2015 September 27, 2014 Numerator: Net (loss) income $ (0.2 ) $ 4.3 Less: Dividends on Series A Preferred Stock (0.1 ) — Less: Accretion of Series A Preferred Stock (9.7 ) — Net (loss) income attributable to common stockholders (10.0 ) 4.3 Denominator: Weighted-average number of common shares outstanding - basic and diluted 58.8 58.8 Net (loss) income per share attributable to common stockholders $ (0.17 ) $ 0.07 On August 1, 2015, JDSU distributed 58.8 million shares of Lumentum common stock to existing holders of JDSU common stock. Basic earnings per share for the three months ended September 26, 2015 is calculated by dividing net income for the period by the weighted average number of common shares outstanding during the period. The weighted average number of common shares outstanding is calculated as the number of shares of common stock outstanding immediately following the Separation, and the weighted average number of shares outstanding following the Separation through September 26, 2015. Diluted earnings per share is calculated by dividing net income for the period by the weighted average number of shares of common stock and potentially dilutive common stock outstanding for the period beginning after the Separation. The dilutive effect of share-based awards is reflected in diluted earnings per share by application of the treasury stock method, which includes consideration of unamortized share-based compensation expense, the tax benefits or shortfalls recorded to additional paid-in capital and the dilutive effect of in-the-money options and non-vested restricted stock units. Under the treasury stock method, the amount the employee must pay for exercising stock options and unamortized share-based compensation expense and tax benefits or shortfalls collectively are assumed proceeds to be used to repurchase hypothetical shares. An increase in the fair market value of the company's common stock can result in a greater dilutive effect from potentially dilutive awards. The dilutive effect of the redeemable convertible preferred stock is reflected in diluted earnings per share by the application of the if-converted method. The number of shares is increased for the assumed conversion of the instrument. Additionally, cumulative dividends and accretion from measuring the instrument at its redemption value are added back to net income. We excluded from the calculation of diluted earnings per share all anti-dilutive instruments. The following table sets forth the weighted-average potentially dilutive securities excluded from the computation of the diluted net (loss) income per share because the effect would have been anti-dilutive (in millions): Three Months Ended September 26, 2015 Restricted stock units 1.8 Redeemable convertible preferred stock 1.5 Stock options and employee stock purchase plan 0.1 Total potentially dilutive securities 3.4

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Sep. 26, 2015
Comprehensive Income Net Of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss)	Note 5. Accumulated Other Comprehensive Income (Loss) Our accumulated other comprehensive (loss) income consists of cumulative foreign currency translation adjustments and defined benefit obligation adjustments. At September 26, 2015 and June 27, 2015, balances for the components of accumulated other comprehensive income were as follows ( in millions Foreign currency translation adjustments, net of tax Defined benefit obligation, net of tax Total Beginning balance as of June 27, 2015 $ 13.7 $ (1.2 ) $ 12.5 Other comprehensive loss (5.5 ) — (5.5 ) Ending balance as of September 26, 2015 $ 8.2 $ (1.2 ) $ 7.0

Mergers and Acquisitions

Mergers and Acquisitions	3 Months Ended
	Sep. 26, 2015
Business Combinations [Abstract]
Mergers and Acquisitions	Note 6. Mergers and Acquisitions Holdback Payments Related to Fiscal 2014 Acquisitions On January 27, 2014 (“Time-Bandwidth Closing Date”), we completed the acquisition of Time-Bandwidth Products, Inc. (“Time-Bandwidth”), a privately-held company headquartered in Switzerland. Time-Bandwidth is a provider of high-powered and ultrafast lasers for industrial and scientific markets. We acquired all outstanding shares of Time-Bandwidth for a purchase price consideration of $15.0 million in cash, including a holdback amount of approximately $2.3 million which had been withheld to satisfy potential breaches of representations and warranties. During the first quarter of fiscal 2016, we released the holdback amount of $2.3 million following the eighteen-month anniversary of the Time-Bandwidth Closing Date. The payment is classified as a financing activity within the consolidated statements of cash flows.

Balance Sheet and Other Details

Balance Sheet and Other Details	3 Months Ended
	Sep. 26, 2015
Balance Sheet And Other Details Disclosure [Abstract]
Balance Sheet and Other Details	Note 7. Balance Sheet and Other Details Accounts receivable allowances As of September 26, 2015, our accounts receivable allowance was $0.7 million. Our accounts receivable allowance balance as of June 27, 2015 was $1.2 million. Inventories The components of inventories were as follows ( in millions September 26, 2015 June 27, 2015 Finished goods $ 51.3 $ 60.1 Work in process 23.2 23.4 Raw materials and purchased parts 28.4 16.2 Inventories $ 102.9 $ 99.7 During the three months ended September 26, 2015, we wrote-off $0.5 million of inventory. Prepayments and other current assets The components of prepayments and other current assets were as follows ( in millions September 26, 2015 June 27, 2015 Prepayments $ 27.5 $ 20.4 Advances to contract manufacturers 9.4 9.5 Due from Viavi 4.8 — Other current assets 10.4 16.2 Prepayments and other current assets $ 52.1 $ 46.1 Amount due from Viavi represents certain obligations to be reimbursed from Viavi pursuant to the Separation and Distribution Agreement and Contribution Agreement. Property, plant and equipment, net The components of property, plant and equipment, net were as follows ( in millions September 26, 2015 June 27, 2015 Land $ 5.9 $ 5.9 Buildings and improvement 28.7 28.6 Machinery and equipment 332.3 326.4 Furniture and fixtures and software 30.9 8.0 Leasehold improvements 29.2 20.5 Construction in progress 16.6 26.8 443.6 416.2 Less: Accumulated depreciation (302.1 ) (273.0 ) Property, plant and equipment, net $ 141.5 $ 143.2 During the three months ended September 26, 2015 and September 27, 2014, we recorded depreciation expense of $11.7 million, and $10.4 million, respectively. Other current liabilities The components of other current liabilities were as follows ( in millions September 26, 2015 June 27, 2015 Restructuring accrual and related charges $ 5.6 $ 3.2 Warranty accrual 2.5 2.8 Others 2.6 5.4 Other current liabilities $ 10.7 $ 11.4 Other non-current liabilities The components of other non-current liabilities were as follows ( in millions September 26, 2015 June 27, 2015 Derivative liability $ 7.5 $ — Asset retirement obligation 2.2 1.8 Pension and related accruals 2.6 2.1 Deferred rent 1.6 1.7 Restructuring accrual and related charges 0.5 1.7 Other non-current liabilities 1.9 2.5 Other non-current liabilities $ 16.3 $ 9.8

Restructuring and Related Charg

Restructuring and Related Charges	3 Months Ended
	Sep. 26, 2015
Restructuring And Related Activities [Abstract]
Restructuring and Related Charges	Note 9. Restructuring and Related Charges We have initiated various strategic restructuring events primarily intended to reduce costs and align our business in response to the market conditions. As of September 26, 2015 and June 27, 2015, our total restructuring and related charges accrual was $5.1 million and $4.9 million, respectively. During the three months ended September 26, 2015 and September 27, 2014, we recorded $0.9 million and $1.8 million, respectively, in restructuring and related charges in the consolidated statements of operations. Our restructuring charges include severance and benefit costs to eliminate a specified number of positions, facilities and equipment costs to vacate facilities and consolidate operations, and lease termination costs. The timing of associated cash payments is dependent upon the type of restructuring charge and can extend over multiple periods. Summary of Restructuring Plans The adjustments to the accrued restructuring expenses related to all of our restructuring plans described below for the three months ended September 26, 2015, were as follows (in millions): Separation Restructuring Plan During the second and fourth quarter of fiscal 2015, Management approved restructuring plans impacting our Optical Communications (“OpComms”) segment to optimize manufacturing operations and gain efficiencies which include closing the Bloomfield, Connecticut site and consolidating roles and responsibilities across functions as we move forward with our separation plan. As a result, approximately 200 employees in manufacturing, R&D and SG&A functions located in North America, Europe and Asia will be impacted. For the three months ended September 26, 2015 the Company recorded $0.9 million expense for additional employee retention costs related to the restructuring plan implemented in the fourth quarter of 2015. Payments related to the remaining severance and benefits accrual are expected to be paid in fiscal year 2017. Balance June 27, 2015 Three Months Ended September 26, 2015 Charges Cash Settlements Balance September 26, 2015 Separation Restructuring Plan (Workforce Reduction) $ 4.9 $ 0.9 $ (0.7 ) $ 5.1 As of September 26, 2015 and June 27, 2015, $5.1 million and $3.2 million were included in other current liabilities, and zero and $1.7 million were included in other non-current liabilities, respectively, in the consolidated balance sheets. Ottawa Lease Exit Costs During fiscal 2008, we recorded lease exit charges, net of assumed sub-lease income related to our Ottawa facility which was included in selling, general and administrative expenses as the space was never occupied and we had no need for the space in the foreseeable future due to changes in business requirements. For the three months ended September 26, 2015, we had cash settlements of $0.1 million. The fair value of the remaining contractual obligations, net of sublease income is $ million third quarter of fiscal 2018

Income Taxes

Income Taxes	3 Months Ended
	Sep. 26, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Note 10. Income Taxes The Company recorded a tax benefit of $0.3 million for the three months ended September 26, 2015, and a tax provision of $0.6 million for the three months ended September 27, 2014. The quarterly provision for income taxes is based on the estimated annual effective tax rate, plus any discrete items. The Company updates its estimated annual effective tax rate at the end of each quarterly period. The estimate takes into account the estimates for annual pre-tax income, the geographic mix of pre-tax income and interpretations of tax laws. The benefit for income taxes for the three months ended September 26, 2015 and the provision for the three months ended September 27, 2014 were primarily related to foreign jurisdictions. The difference between the provision for income taxes that would be derived by applying the statutory rate to the Company’s income (loss) before income taxes and the provision for income taxes recorded for the three months ended September 26, 2015 and September 27, 2014 was primarily attributable to the difference in foreign tax rates, utilization of US tax attributes that were subject to a full valuation allowance, and certain Canadian tax incentives. The Company’s net deferred tax assets relate predominantly to the Canadian tax jurisdiction and the Company has a partial valuation allowance against these deferred tax assets. The Company weighed both positive and negative evidence and determined that due to the limited carryover period of certain tax attributes in Canada, there is a continued need for a partial valuation allowance against these deferred tax assets as of September 26, 2015. Should the Company determine that it needs to adjust the valuation allowance, the adjustment may have a material impact to net income in the period such determination is made. The Company evaluates the realizability of its net deferred tax assets based on all available evidence, both positive and negative, on a quarterly basis. The realization of net deferred tax assets is dependent on the Company’s ability to generate sufficient future taxable income during periods prior to the expiration of tax attributes to fully utilize these assets. The Company weighed both positive and negative evidence and determined that due to cumulative losses in the U.S., there is a continued need for a full valuation allowance against the U.S. deferred tax assets as of September 26, 2015. In connection with the Separation, JDSU contributed all of the assets and liabilities related to the Lumentum business to an entity owned by Lumentum. For tax purposes, this contribution is treated as a taxable transaction and the gross tax basis for the Company increased by approximately $715 million. The corresponding deferred tax asset is currently subject to a full valuation allowance. In addition, the Company is in the process of evaluating its international operational footprint, which could result in future changes to the Company’s legal entity structure and operating model. A wholly-owned foreign subsidiary of the Company acquired certain rights to sell the existing products and also those products to be developed or licensed in the future and will also share in the research and development cost. The existing rights were transferred to its wholly-owned foreign subsidiary prior to the Separation. As a result of these changes, the Company expects that an increasing percentage of its consolidated pre-tax income will be derived from, and reinvested in, its foreign operations. The Company anticipates that this pre-tax income will be subject to foreign tax at relatively lower tax rates when compared to the U.S. federal statutory tax rate and as a consequence, the Company’s effective income tax rate is expected to be lower than the U.S. federal statutory rate.

Non Controlling Interest Redeem

Non Controlling Interest Redeemable Convertible Preferred Stock	3 Months Ended
	Sep. 26, 2015
Temporary Equity Disclosure [Abstract]
Non Controlling Interest Redeemable Convertible Preferred Stock	Note 11. Non-Controlling Interest Redeemable Convertible Preferred Stock On July 31, 2015, our wholly-owned subsidiary, Lumentum Inc., issued 40,000 shares of its Series A Preferred Stock to Viavi. Pursuant to a securities purchase agreement between the Company, Viavi and Amada, 35,805 shares of Series A Preferred Stock were sold to Amada in August 2015. The remaining 4,195 shares of the Series A Preferred Stock were canceled. The Series A Preferred Stock is referred to as our Non-Controlling Interest Redeemable Convertible Preferred Stock within these consolidated financial statements. The Series A Preferred Stockis redeemable at the option of Amada after five years and classified as mezzazine equity in our consolidated balance sheet. The Series A Preferred Stock is measured at its redemption value. We recognized a $9.7 million increase in the value of the Series A Preferred Stock during the three months ended September 26, 2015 to accrete to the redemption value of $35.8 million with a reduction to additional paid-in capital. The Series A Preferred Stock conversion feature is bifurcated from the Series A Preferred Stock and accounted for separately as a derivative liability. The derivative liability is measured at fair value each reporting period with the change in fair value recorded in the consolidated statement of operations. For the three months ended September 26, 2015, a $2.2 million unrealized gain was recorded. The following paragraphs describe the terms and conditions of the Series A Preferred Stock: Conversion The Series A Preferred Stock is convertible, at the option of the holder, into shares of our common stock commencing on the second anniversary of the closing of the securities purchase (absent a change of control of us or similar event) using a conversion price of $24.63, which is equal to 125% of the volume weighted average price per share of our common stock in the five “regular-way” trading days following the Separation. Liquidation Upon any liquidation, dissolution, or winding up of our business, whether voluntary or involuntary, holders of Series A Preferred Stock will be entitled to receive, in preference to holders of common stock or any other class or series of our outstanding capital stock ranking in any such event junior to the Series A Preferred Stock, an amount per share equal to the greater of (i) the Issuance Value of $1,000 per share for Series A Preferred Stock plus all accrued and unpaid dividends thereon (whether or not authorized or declared) through the date of payment and (ii) the amount as would have been payable had all Series A Preferred Stock been converted into common stock immediately prior to such liquidation event. If upon occurrence of any such event, our assets legally available for distribution are insufficient to permit payment of the aforementioned preferential amounts, then all of our assets legally available for distribution will be distributed ratably to the holders of the Series A Preferred Stock and to the holders of any other class or series of our capital stock ranking on parity with the Series A Preferred Stock. Voting Rights The Series A Preferred Stock have no voting rights except as follows: · Authorize, approve, or make any change to the powers, preferences, privileges or rights of the Series A Preferred Stock; · Authorize or issue a new class of series of shares having preferences senior to the Series A Preferred Stock as to the payment of dividends or the distribution of assets upon the company’s liquidation, dissolution, or winding up; · Authorize or issue any additional shares of Series A Preferred Stock or reduce the number of shares of Series A Preferred Stock; or · Create, or hold capital stock in, any subsidiary that is not wholly-owned by the company. Dividends Holders of Series A Preferred Stock, in preference to holders of common stock or any other class or series of our outstanding capital stock ranking in any such event junior to the Series A Preferred Stock, are entitled to receive, when and as declared by the board of directors, quarterly cumulative cash dividends at the annual rate of 2.5% of the Issuance Value per share per annum on each outstanding share of Series A Preferred Stock. The accrued dividends are payable on March 31, June 30, September 30 and December 31 of each year commencing on September 30, 2015. The accrued dividend for the three months ended September 26, 2015 is $0.1 million. Redemption Optional redemption by the Company On or after the third anniversary, we will have the option to redeem for cash all (but not less than all) of the shares of Series A Preferred Stock at a redemption price equal to the Issuance Value plus the accrued and unpaid dividends on each share and any past due dividends, whether or not authorized or declared. Optional redemption by holders Commencing on the fifth anniversary of the Issuance Date, each holder of Series A Preferred Stock may cause the Company to redeem for cash any number of shares of Series A Preferred Stock on any date at a redemption price for share redeemed equal to the Issuance Value plus the accrued and unpaid dividends on each share and any past due dividends, whether or not authorized or declared.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Sep. 26, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	Note 12. Stock-Based Compensation Overview Prior to the Separation, we participated in Viavi’s stock-based benefit plans and recorded stock-based compensation based on the equity awards granted to our employees as well as an allocation of expenses from Viavi’s employees in shared services functions. Upon the Separation, outstanding employee stock options, Restricted Stock Units (RSUs) and Restricted Stock Units based on market conditions previously issued to our employees under the Viavi equity plans were converted into proportionately equivalent Lumentum equity awards under our 2015 Equity Incentive Plan, using a formula designed to preserve the fair value of the awards immediately prior to the Separation. All other terms of the awards remain unchanged. During the three months ended September 26, 2015, the Restricted Stock Units based on market conditions were modified to performance-based RSUs, and the impact of the modification resulted in additional expenses of $0.1 million. The impact on our results of operations of recording stock-based compensation by function for the three months ended September 26, 2015 and September 27, 2014 was as follows ( in millions Three Months Ended September 26, 2015 September 27, 2014 Cost of sales $ 1.2 $ 1.4 Research and development 1.9 1.9 Selling, general and administrative 3.4 3.6 $ 6.5 $ 6.9 Approximately $1.0 million of stock-based compensation was capitalized in inventory at September 26, 2015. The table above includes allocated stock-based compensation from Viavi of $0.5 million and $2.0 million for the three months ended September 26, 2015 and September 27, 2014, respectively. Stock Option Activity We granted no stock options during fiscal 2015 and 2014. The total intrinsic value of options exercised by our employees during the three months ended September 26, 2015 was $0.1 million. Restricted Stock Units Activity During the three months ended September 26, 2015, we granted 1.6 million RSUs, of which 41,000 also have performance conditions. The aggregate grant-date fair value of the time-based RSUs and performance-based RSUs are $32.0 million and $0.8 million, respectively. The majority of the time-based RSUs vests over three years, with 33.3% vesting after one year and the balance vesting quarterly over the remaining two years. The vesting of the performance based RSUs is over three years and contingent upon the achievement of specific revenue targets and the employee’s continued service. The performance based RSU shares have a target number of shares, and the actual number of shares awarded upon vesting may be higher or lower depending upon the level of achievement of the performance conditions. A summary of the status of our outstanding RSUs as of September 26, 2015 and changes during the three months ended September 26, 2015 is presented below ( in millions Full Value Awards Time-based shares Performance- based shares Total number of shares Outstanding at June 27, 2015, as converted 1.5 0.2 1.7 Awards granted 1.6 — 1.6 Awards vested (0.3 ) (0.1 ) (0.4 ) Outstanding at September 26, 2015 2.8 0.1 2.9 As of September 26, 2015, $44.4 million of unrecognized stock-based compensation cost related to RSUs remains to be amortized. That cost is expected to be recognized over an estimated amortization period of 2.4 years. RSUs are converted into shares upon vesting. Shares equivalent in value to the minimum statutory withholding tax on the vested shares are withheld by the Company at the employees discretion for the payment of such taxes. During the three months ended September 26, 2015 and September 27, 2014, the Company paid $2.9 million and $3.2 million for employee withholding taxes, respectively, and classified the payments as operating cash outflows in the consolidated statements of cash flows.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Sep. 26, 2015
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 13. Commitments and Contingencies Operating Leases We lease certain real and personal property from unrelated third parties under non-cancellable operating leases that expire at various dates through fiscal 2026. Certain leases require us to pay property taxes, insurance and routine maintenance, and include escalation clauses. As of September 26, 2015 the future minimum annual lease payments under non-cancellable operating leases were as follows ( in millions Remainder of 2016 $ 4.6 2017 5.7 2018 4.6 2019 3.0 2020 1.9 Thereafter 5.1 Total minimum operating lease payments $ 24.9 Included in the future minimum lease payments table above is $1.0 million related to lease commitments in connection with our restructuring and related activities. Refer to “Note 9. Restructuring and Related Charges” for more information. Purchase Obligations Purchase obligations of $151.8 million as of September 26, 2015, represent legally-binding commitments to purchase inventory and other commitments made in the normal course of business to meet operational requirements. Although open purchase orders are considered enforceable and legally binding, the terms generally allow the option to cancel, reschedule and adjust the requirements based on our business needs prior to the delivery of goods or performance of services. Obligations to purchase inventory and other commitments are generally expected to be fulfilled within one year. We depend on a limited number of contract manufacturers, subcontractors and suppliers for raw materials, packages and standard components. We generally purchase these single or limited source products through standard purchase orders or one-year supply agreements and have no significant long-term guaranteed supply agreements with such vendors. While we seek to maintain a sufficient safety stock of such products and maintain on-going communications with our suppliers to guard against interruptions or cessation of supply, our business and results of operations could be adversely affected by a stoppage or delay of supply, substitution of more expensive or less reliable products, receipt of defective parts or contaminated materials, increases in the price of such supplies, or our inability to obtain reduced pricing from our suppliers in response to competitive pressures. Product Warranties We provide reserves for the estimated costs of product warranties at the time revenue is recognized. We typically offer a twelve month warranty for most of our products. However, in some instances depending upon the product, product component or application of our products by the end customer, our warranties can vary and generally range from six to thirty-six months. We estimate the costs of our warranty obligations on an annualized basis based on our historical experience of known product failure rates, use of materials to repair or replace defective products and service delivery costs incurred in correcting product failures. In addition, from time to time, specific warranty accruals may be made if unforeseen technical problems arise with specific products. We assess the adequacy of our recorded warranty liabilities and adjust the amounts as necessary. The following table presents the changes in our warranty reserve during the three months ended September 26, 2015 and September 27, 2014 ( in millions Three Months Ended September 26, 2015 September 27, 2014 Balance as of beginning of period $ 2.8 $ 2.7 Provision for warranty 0.9 0.6 Utilization of reserve (1.2 ) (0.9 ) Balance as of end of period $ 2.5 $ 2.4 Environmental Liabilities Our R&D, manufacturing and distribution operations involve the use of hazardous substances and are regulated under international, federal, state and local laws governing health and safety and the environment. We apply strict standards for protection of the environment and occupational health and safety to sites inside and outside the United States, even if not subject to regulation imposed by foreign governments. We believe that our properties and operations at our facilities comply in all material respects with applicable environmental laws and occupational health and safety laws. However, the risk of environmental liabilities cannot be completely eliminated and there can be no assurance that the application of environmental and health and safety laws will not require us to incur significant expenditures. We are also regulated under a number of international, federal, state and local laws regarding recycling, product packaging and product content requirements. The environmental, product content/disposal and recycling laws are gradually becoming more stringent and may cause us to incur significant expenditures in the future. In connection with the Separation, we agreed to indemnify Viavi for any liability associated with contamination from past operations at all properties transferred to us from Viavi, to the extent the resulting issues primarily related to our business. Legal Proceedings We are subject to a variety of claims and suits that arise from time to time in the ordinary course of our business. While Management currently believes that resolving claims against us, individually or in the aggregate, will not have a material adverse impact on our financial position, results of operations or statement of cash flows, these matters are subject to inherent uncertainties and management's view of these matters may change in the future. Were an unfavorable final outcome to occur, there exists the possibility of a material adverse impact on our financial position, results of operations or cash flows for the period in which the effect becomes reasonably estimable.

Operating Segments and Geograph

Operating Segments and Geographic Information	3 Months Ended
	Sep. 26, 2015
Segment Reporting [Abstract]
Operating Segments and Geographic Information	Note 14. Operating Segments and Geographic Information Our chief executive officer is our Chief Operating Decision Maker (“CODM”). The CODM allocates resources to the segments based on their business prospects, competitive factors, net revenue and gross margin. We are an industry leading provider of optical and photonic products addressing a range of end-market applications including optical communications and commercial lasers. We have two operating segments, OpComms and Lasers. The two operating segments were primarily determined based on how the CODM views and evaluates our operations. Operating results are regularly reviewed by the CODM to make decisions about resources to be allocated to the segments and to assess their performance. Other factors, including market separation and customer specific applications, go-to-market channels, products and manufacturing, are considered in determining the formation of these operating segments. Our reportable segments are: (i) OpComms: Our OpComms portfolio includes products used by Telecom and Datacom network equipment manufacturers (“NEMs”) and both traditional and cloud/data center service providers. These products enable the transmission and transport of video, audio and text data over high-capacity fiber optic cables. Transmission products primarily consist of optical transceivers, optical transponders, and their supporting components such as modulators and source lasers, including innovative products such as the Tunable Small Form-factor Pluggable Plus transceiver. Transport products primarily consist of modules or sub-systems containing optical amplifiers, reconfigurable optical add/drop multiplexers (“ROADMs”) or Wavelength Selective Switches, Optical Channel Monitors and their supporting components. Our products for 3-D sensing applications, formerly referred to as our gesture recognition products, include light source products. Customer solutions containing our 3-D sensing products let a person control electronic or computer devices with natural body or hand gestures instead of using a remote, mouse or other device. (ii) Lasers: Our Lasers products serve customers in markets and applications such as manufacturing, biotechnology, graphics and imaging, remote sensing, and precision machining such as drilling in printed circuit boards, wafer singulation and solar cell scribing. These products include diode, direct-diode, diode-pumped solid-state, fiber and gas lasers. In addition, our photonic power products include fiber optic-based systems for delivering and measuring electrical power. The CODM evaluates segment performance to make financial decisions and allocate resources based on gross margin. We do not allocate research and development, sales and marketing, or general and administrative expenses to our segments because Management does not include the information in its measurement of the performance of the operating segments. In addition, we do not allocate amortization and impairment of acquisition-related intangible assets, stock-based compensation and certain other non-recurring charges impacting the gross margin of each segment because Management does not include this information in its measurement of the performance of the operating segments. Information on reportable segments utilized by our CODM is as follows (in millions) Three Months Ended September 26, 2015 September 27, 2014 Net revenue: OpComms $ 177.1 $ 176.9 Lasers 35.5 42.1 Net revenue $ 212.6 $ 219.0 Gross profit: OpComms 55.6 52.8 Lasers 14.2 21.3 Total segment gross profit 69.8 74.1 Unallocated amounts: Stock-based compensation (1.2 ) (1.4 ) Amortization of intangibles (1.7 ) (1.9 ) Other charges related to non-recurring activities — (0.5 ) Gross profit $ 66.9 $ 70.3 The table below discloses the percentage of our total net revenue attributable to each of our two reportable segments. In addition, it discloses the percentage of our total net revenue attributable to our product offerings which serve the Telecom, Datacom and consumer and industrial (“Consumer and Industrial”) markets which accounted for more than 10% of our total net revenue during the last three fiscal years: Three Months Ended September 26, 2015 September 27, 2014 Optical Communications: 83.3 % 80.8 % Telecom 56.5 % 61.9 % Datacom 11.7 % 13.8 % Consumer and Industrial 15.1 % 5.1 % Lasers 16.7 % 19.2 % We operate in three geographic regions: Americas, Asia-Pacific and Europe, Middle East and Africa (“EMEA”). Net revenue is assigned to the geographic region and country where our product is initially shipped. For example, certain customers may request shipment of our product to a contract manufacturer in one country, which may differ from the location of their end customers. The following table presents net revenue by the three geographic regions we operate in and net revenue from countries that exceeded 10% of our total net revenue (in millions, except for percentages) Three Months Ended September 26, 2015 September 27, 2014 Net revenue: Americas: United States $ 34.5 16.2 % $ 42.4 19.3 % Mexico 41.8 19.6 26.5 12.1 Other Americas 7.8 3.7 6.3 2.9 Total Americas $ 84.1 39.5 % $ 75.2 34.3 % Asia-Pacific: Hong Kong $ 30.8 14.5 % $ 28.7 13.1 % Japan 25.0 11.8 35.9 16.4 Other Asia-Pacific 40.0 18.8 41.1 18.8 Total Asia-Pacific $ 95.8 45.1 % $ 105.7 48.3 % EMEA $ 32.7 15.4 % $ 38.1 17.4 % Total net revenue $ 212.6 $ 219.0 During the three months ended September 26, 2015 and September 27, 2014, net revenue from customers outside the U.S., based on customer shipping location, represented 83.8% and 80.7% of net revenue, respectively. Our net revenue is primarily denominated in U.S. dollars, including our net revenue from customers outside the United States as presented above.

Description of Business and S24

Description of Business and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Sep. 26, 2015
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Description of Business	Description of Business We are an industry leading provider of optical and photonic products addressing a range of end markets including data communications (“Datacom”) and telecommunications (“Telecom”) networking, and industrial and commercial lasers (“commercial lasers”) for manufacturing, inspection and life-science applications.
Basis of Presentation	Basis of Presentation On August 1, 2015, Lumentum became an independent publicly-traded company through the distribution by JDSU to its stockholders of 80.1% of our outstanding common stock (the “Separation”). Each JDSU stockholder of record as of the close of business on July 27, 2015 received one share of Lumentum common stock for every five shares of JDSU common stock held on the record date. JDSU was renamed Viavi and at the time of the distribution retained ownership of 19.9% of Lumentum’s outstanding shares. Lumentum was incorporated in Delaware as a wholly owned subsidiary of Viavi on February 10, 2015 and is comprised of the former communications and commercial optical products (“CCOP”) segment and WaveReady product lines of Viavi. Lumentum’s Registration Statement on Form 10 was declared effective by the U.S. Securities and Exchange Commission (“SEC”) on July 16, 2015. Lumentum’s common stock began trading “regular-way” under the ticker “LITE” on the NASDAQ stock market on August 4, 2015. On July 31, 2015, prior to the Separation, Viavi transferred substantially all of the assets and liabilities and operations of the communications and commercial optical products (“CCOP”) segment and WaveReady product lines to Lumentum (the “Capitalization"). Combined financial statements for periods prior to the Capitalization were prepared on a stand-alone basis and were derived from Viavi’s consolidated financial statements and accounting records. For the three months ended September 26, 2015, expenses were allocated to us using estimates that we consider to be a reasonable reflection of the utilization of services provided to or benefits received by us. The preparation of the consolidated financial statements in accordance with GAAP in the U.S. requires management to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and accompanying notes. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Although these estimates are based on management’s best knowledge of current events and actions that may impact the company in the future, actual results may be different from the estimates. Our critical accounting policies are those that affect our financial statements materially and involve difficult, subjective or complex judgments by management. Those policies are revenue recognition, inventory valuation, allocation methods and allocated expenses from Viavi, valuation of goodwill and other intangible assets, share-based compensation, retirement and post-retirement plan assumptions, restructuring, warranty and accounting for income taxes. See “Note 3. Related Party Transactions” in the consolidated financial statements for further information regarding the relationships we had with Viavi and other Viavi entities. Our consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC and are in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”). In the opinion of management, these consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, which are necessary for a fair statement of the consolidated financial statements for the periods shown. The results of operations for such periods are not necessarily indicative of the results expected for the full year or for any future periods.
Fiscal Years	Fiscal Years We utilize a 52-53 week fiscal year ending on the Saturday closest to June 30th. Our fiscal 2016 is a 53-week year ending on July 2, 2016. Our fiscal 2015 ended on June 27, 2015 and was a 52-week year. Our fiscal 2014 ended on June 28, 2014 and was a 52-week year.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include certain assets and liabilities that were historically held at the Viavi level which were specifically identifiable or otherwise attributable to us. All intra-company transactions within our business were eliminated. All significant transactions between us and other businesses of Viavi prior to separation were reflected as net transfers to and from Viavi in the consolidated statement of stockholders’ equity and as a component of financing activities in the consolidated statement of cash flows
Use of Estimates	Use of Estimates The preparation of our consolidated financial statements in conformity with U.S. GAAP requires Management to make estimates and assumptions that affect the reported amount of assets and liabilities at the date of the financial statements, the reported amount of net revenue and expenses and the disclosure of commitments and contingencies during the reporting periods. We base estimates on historical experience and on various assumptions about the future believed to be reasonable based on available information. Our reported financial position or results of operations may be materially different under changed conditions or when using different estimates and assumptions, particularly with respect to significant accounting policies. If estimates or assumptions differ from actual results, subsequent periods are adjusted to reflect more current information.
Accounting Policies	Accounting Policies There have been no material changes in our significant accounting policies during the three months ended September 26, 2015 compared to the significant accounting policies described in our Annual Report on Form 10-K/A for the fiscal year ended June 27, 2015. The accompanying unaudited interim consolidated financial statements and accompanying related notes should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K/A for the fiscal year ended June 27, 2015.

Related Party Transactions (Tab

Related Party Transactions (Tables)	3 Months Ended
	Sep. 26, 2015
Related Party Transactions [Abstract]
Transactions with Viavi	Allocated costs included in the accompanying consolidated statements of operations are as follows ( in millions Three Months Ended September 26, 2015 September 27, 2014 Selling, general and administrative 11.7 16.8 Interest and other (income) expenses, net (0.1 ) 0.1 Interest expense 0.1 0.2 Total allocated costs $ 11.7 $ 17.1

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Sep. 26, 2015
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Net (Loss) Income per Share	The following table sets forth the computation of basic and diluted net (loss) income per share ( in millions, except per share data Three Months Ended September 26, 2015 September 27, 2014 Numerator: Net (loss) income $ (0.2 ) $ 4.3 Less: Dividends on Series A Preferred Stock (0.1 ) — Less: Accretion of Series A Preferred Stock (9.7 ) — Net (loss) income attributable to common stockholders (10.0 ) 4.3 Denominator: Weighted-average number of common shares outstanding - basic and diluted 58.8 58.8 Net (loss) income per share attributable to common stockholders $ (0.17 ) $ 0.07
Schedule of Weighted-Average Potentially Dilutive Securities Excluded from Computation of Diluted Net (Loss) Income per Share	The following table sets forth the weighted-average potentially dilutive securities excluded from the computation of the diluted net (loss) income per share because the effect would have been anti-dilutive (in millions): Three Months Ended September 26, 2015 Restricted stock units 1.8 Redeemable convertible preferred stock 1.5 Stock options and employee stock purchase plan 0.1 Total potentially dilutive securities 3.4

Accumulated Other Comprehensi27

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Sep. 26, 2015
Comprehensive Income Net Of Tax [Abstract]
Schedule of Accumulated Other Comprehensive Income	At September 26, 2015 and June 27, 2015, balances for the components of accumulated other comprehensive income were as follows ( in millions Foreign currency translation adjustments, net of tax Defined benefit obligation, net of tax Total Beginning balance as of June 27, 2015 $ 13.7 $ (1.2 ) $ 12.5 Other comprehensive loss (5.5 ) — (5.5 ) Ending balance as of September 26, 2015 $ 8.2 $ (1.2 ) $ 7.0

Balance Sheet and Other Detai28

Balance Sheet and Other Details (Tables)	3 Months Ended
	Sep. 26, 2015
Balance Sheet And Other Details Disclosure [Abstract]
Schedule of Components of Inventories	The components of inventories were as follows ( in millions September 26, 2015 June 27, 2015 Finished goods $ 51.3 $ 60.1 Work in process 23.2 23.4 Raw materials and purchased parts 28.4 16.2 Inventories $ 102.9 $ 99.7
Schedule of Components of Prepayments and Other Current Assets	The components of prepayments and other current assets were as follows ( in millions September 26, 2015 June 27, 2015 Prepayments $ 27.5 $ 20.4 Advances to contract manufacturers 9.4 9.5 Due from Viavi 4.8 — Other current assets 10.4 16.2 Prepayments and other current assets $ 52.1 $ 46.1
Schedule of Components of Property, Plant and Equipment	The components of property, plant and equipment, net were as follows ( in millions September 26, 2015 June 27, 2015 Land $ 5.9 $ 5.9 Buildings and improvement 28.7 28.6 Machinery and equipment 332.3 326.4 Furniture and fixtures and software 30.9 8.0 Leasehold improvements 29.2 20.5 Construction in progress 16.6 26.8 443.6 416.2 Less: Accumulated depreciation (302.1 ) (273.0 ) Property, plant and equipment, net $ 141.5 $ 143.2
Schedule of Components of Other Current Liabilities	The components of other current liabilities were as follows ( in millions September 26, 2015 June 27, 2015 Restructuring accrual and related charges $ 5.6 $ 3.2 Warranty accrual 2.5 2.8 Others 2.6 5.4 Other current liabilities $ 10.7 $ 11.4
Schedule of Components of Other Non-Current Liabilities	The components of other non-current liabilities were as follows ( in millions September 26, 2015 June 27, 2015 Derivative liability $ 7.5 $ — Asset retirement obligation 2.2 1.8 Pension and related accruals 2.6 2.1 Deferred rent 1.6 1.7 Restructuring accrual and related charges 0.5 1.7 Other non-current liabilities 1.9 2.5 Other non-current liabilities $ 16.3 $ 9.8

Goodwill and Other Intangible29

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Sep. 26, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Changes in Goodwill	The following table presents the changes in goodwill allocated to the reportable segments during the three months ended September 26, 2015 ( in millions Commercial Lasers Total Balance as of June 27, 2015 $ 5.6 $ 5.6 Currency translation and other adjustments (0.3 ) (0.3 ) Balance as of September 26, 2015 $ 5.3 $ 5.3
Acquired Developed Technology and Other Intangibles	The following tables present details of our acquired developed technology and other intangibles ( in millions As of September 26, 2015 Gross Carrying Amount Accumulated Amortization Net Acquired developed technology $ 103.2 $ (84.6 ) $ 18.6 Other 9.4 (8.0 ) 1.4 Total Intangibles $ 112.6 $ (92.6 ) $ 20.0 As of June 27, 2015 Gross Carrying Amount Accumulated Amortization Net Acquired developed technology $ 103.2 $ (82.2 ) $ 21.0 Other 9.4 (8.6 ) 0.8 Total Intangibles $ 112.6 $ (90.8 ) $ 21.8
Intangible Assets Amortization Expense	The following table presents details of our amortization (in millions): Three Months Ended September 26, 2015 September 27, 2014 Cost of sales $ 1.7 $ 1.9 Operating expense 0.1 0.1 Total $ 1.8 $ 2.0

Restructuring and Related Cha30

Restructuring and Related Charges (Tables)	3 Months Ended
	Sep. 26, 2015
Restructuring And Related Activities [Abstract]
Schedule of various restructuring plans	During the second and fourth quarter of fiscal 2015, Management approved restructuring plans impacting our Optical Communications (“OpComms”) segment to optimize manufacturing operations and gain efficiencies which include closing the Bloomfield, Connecticut site and consolidating roles and responsibilities across functions as we move forward with our separation plan. As a result, approximately 200 employees in manufacturing, R&D and SG&A functions located in North America, Europe and Asia will be impacted. For the three months ended September 26, 2015 the Company recorded $0.9 million expense for additional employee retention costs related to the restructuring plan implemented in the fourth quarter of 2015. Payments related to the remaining severance and benefits accrual are expected to be paid in fiscal year 2017. Balance June 27, 2015 Three Months Ended September 26, 2015 Charges Cash Settlements Balance September 26, 2015 Separation Restructuring Plan (Workforce Reduction) $ 4.9 $ 0.9 $ (0.7 ) $ 5.1

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Sep. 26, 2015
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Schedule of the Impact on the Entity's Results of Operations of Recording Stock-Based Compensation by Function	The impact on our results of operations of recording stock-based compensation by function for the three months ended September 26, 2015 and September 27, 2014 was as follows ( in millions Three Months Ended September 26, 2015 September 27, 2014 Cost of sales $ 1.2 $ 1.4 Research and development 1.9 1.9 Selling, general and administrative 3.4 3.6 $ 6.5 $ 6.9
Schedule of Changes in Outstanding Restricted Stock Units	A summary of the status of our outstanding RSUs as of September 26, 2015 and changes during the three months ended September 26, 2015 is presented below ( in millions Full Value Awards Time-based shares Performance- based shares Total number of shares Outstanding at June 27, 2015, as converted 1.5 0.2 1.7 Awards granted 1.6 — 1.6 Awards vested (0.3 ) (0.1 ) (0.4 ) Outstanding at September 26, 2015 2.8 0.1 2.9

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Sep. 26, 2015
Commitments And Contingencies Disclosure [Abstract]
Schedule of Future Minimum Annual Lease Payments under Non-Cancellable Operating Leases	As of September 26, 2015 the future minimum annual lease payments under non-cancellable operating leases were as follows ( in millions Remainder of 2016 $ 4.6 2017 5.7 2018 4.6 2019 3.0 2020 1.9 Thereafter 5.1 Total minimum operating lease payments $ 24.9
Schedule of Changes in Entity's Warranty Reserve	The following table presents the changes in our warranty reserve during the three months ended September 26, 2015 and September 27, 2014 ( in millions Three Months Ended September 26, 2015 September 27, 2014 Balance as of beginning of period $ 2.8 $ 2.7 Provision for warranty 0.9 0.6 Utilization of reserve (1.2 ) (0.9 ) Balance as of end of period $ 2.5 $ 2.4

Operating Segments and Geogra33

Operating Segments and Geographic Information (Tables)	3 Months Ended
	Sep. 26, 2015
Segment Reporting [Abstract]
Schedule of Information on Reportable Segments	Information on reportable segments utilized by our CODM is as follows (in millions) Three Months Ended September 26, 2015 September 27, 2014 Net revenue: OpComms $ 177.1 $ 176.9 Lasers 35.5 42.1 Net revenue $ 212.6 $ 219.0 Gross profit: OpComms 55.6 52.8 Lasers 14.2 21.3 Total segment gross profit 69.8 74.1 Unallocated amounts: Stock-based compensation (1.2 ) (1.4 ) Amortization of intangibles (1.7 ) (1.9 ) Other charges related to non-recurring activities — (0.5 ) Gross profit $ 66.9 $ 70.3
Schedule of Products and Services Which Accounted for 10% or More of Total Net Revenue	The table below discloses the percentage of our total net revenue attributable to each of our two reportable segments. In addition, it discloses the percentage of our total net revenue attributable to our product offerings which serve the Telecom, Datacom and consumer and industrial (“Consumer and Industrial”) markets which accounted for more than 10% of our total net revenue during the last three fiscal years: Three Months Ended September 26, 2015 September 27, 2014 Optical Communications: 83.3 % 80.8 % Telecom 56.5 % 61.9 % Datacom 11.7 % 13.8 % Consumer and Industrial 15.1 % 5.1 % Lasers 16.7 % 19.2 %
Schedule of Revenue by Geographical Region	The following table presents net revenue by the three geographic regions we operate in and net revenue from countries that exceeded 10% of our total net revenue (in millions, except for percentages) Three Months Ended September 26, 2015 September 27, 2014 Net revenue: Americas: United States $ 34.5 16.2 % $ 42.4 19.3 % Mexico 41.8 19.6 26.5 12.1 Other Americas 7.8 3.7 6.3 2.9 Total Americas $ 84.1 39.5 % $ 75.2 34.3 % Asia-Pacific: Hong Kong $ 30.8 14.5 % $ 28.7 13.1 % Japan 25.0 11.8 35.9 16.4 Other Asia-Pacific 40.0 18.8 41.1 18.8 Total Asia-Pacific $ 95.8 45.1 % $ 105.7 48.3 % EMEA $ 32.7 15.4 % $ 38.1 17.4 % Total net revenue $ 212.6 $ 219.0

Description of Business and S34

Description of Business and Summary of Significant Accounting Policies - Additional Information (Details) - shares	Aug. 01, 2015	Sep. 26, 2015	Jun. 27, 2015	Jun. 28, 2014
Property Plant and Equipment [Line Items]
Percentage of outstanding shares distributed	80.10%
Ownership percentage	19.90%
Fiscal period		370 days	364 days	364 days
Spin Off Transaction
Property Plant and Equipment [Line Items]
Conversion of prior shares of JDSU to Lumentum (in shares)	5

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details) - USD ($)	2 Months Ended	3 Months Ended
	Nov. 16, 2015	Sep. 26, 2015	Sep. 27, 2014
Related Party Transaction [Line Items]
Research and development		$ 34,400,000	$ 35,000,000
Transactions with Viavi
Related Party Transaction [Line Items]
Agreement contains purchase commitment		15,000,000
Purchases from related party		0
Revenue from related parties		800,000
Research and development		500,000
Sublease rental income		100,000
Amount due from related party		$ 800,000
Transactions with Viavi | Subsequent Event
Related Party Transaction [Line Items]
Purchases from related party	$ 4,600,000

Related Party Transactions - Tr

Related Party Transactions - Transactions with Viavi (Details) - Viavi Net Investment - Transactions with Viavi - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Related Party Transaction [Line Items]
Allocated costs	$ 11.7	$ 17.1
Selling, General and Administrative
Related Party Transaction [Line Items]
Allocated costs	11.7	16.8
Interest and Other (Income) Expenses, Net
Related Party Transaction [Line Items]
Allocated costs	(0.1)	0.1
Interest Expense
Related Party Transaction [Line Items]
Allocated costs	$ 0.1	$ 0.2

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Computation of Basic and Diluted Net (Loss) Income per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended		12 Months Ended
		Sep. 26, 2015	Sep. 27, 2014	Jun. 27, 2015
Numerator:
Net (loss) income		$ (0.2)	$ 4.3	$ (3.4)
Less: Dividends on Series A Preferred Stock		(0.1)
Less: Accretion of Series A Preferred Stock		(9.7)
Net (loss) income attributable to common shareholders		$ (10)	$ 4.3
Denominator:
Weighted-average number of common shares outstanding - basic and diluted	[1]	58.8	58.8
Net (loss) income per share attributable to common stockholders	[1]	$ (0.17)	$ 0.07
[1]	On August 1, 2015, JDS Uniphase Corporation (“JDSU”) distributed 47.1 million shares, or 80.1% of the outstanding shares of common stock of Lumentum Holdings Inc. (“we”, “our”, “Company” or “Lumentum”) to existing holders of JDSU common stock. JDSU was renamed Viavi Solutions Inc. (“Viavi”) and at the time of the distribution, retained 11.7 million shares, or 19.9% of Lumentum’s outstanding shares. Basic and diluted net (loss) income per share for the three months ended September 27, 2014 is calculated using the shares of Lumentum common stock outstanding on August 1, 2015, as if such shares were outstanding for the entire period.

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Details) shares in Millions	Aug. 01, 2015shares
Earnings Per Share [Abstract]
Shares distributed during period (in shares)	58.8

Earnings Per Share - Schedule39

Earnings Per Share - Schedule of Weighted-Average Potentially Dilutive Securities Excluded from Computation of Diluted Net (Loss) Income per Share (Details) shares in Millions	3 Months Ended
	Sep. 26, 2015shares
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of EPS	3.4
Restricted stock units
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of EPS	1.8
Stock options and employee stock purchase plan
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of EPS	0.1
Redeemable Convertible Series A Preferred Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of EPS	1.5

Accumulated Other Comprehensi40

Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Details) $ in Millions	3 Months Ended
	Sep. 26, 2015USD ($)
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	$ 12.5
Other comprehensive loss	(5.5)
Balance at the end of the period	7
Foreign Currency Translation Adjustments, Net of Tax
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	13.7
Other comprehensive loss	(5.5)
Balance at the end of the period	8.2
Defined Benefit obligation, Net of Tax
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(1.2)
Balance at the end of the period	$ (1.2)

Mergers and Acquisitions - Addi

Mergers and Acquisitions - Additional Information (Details) - Time-Bandwidth Products AG (Time-Bandwidth) - USD ($) $ in Millions	Jan. 27, 2014	Sep. 26, 2015
Business Acquisition [Line Items]
Purchase price paid in cash	$ 15
Working capital adjustment and holdback payment	$ 2.3
Holdback payment		$ 2.3
Period after which the holdback payments will be released	18 months

Balance Sheet and Other Detai42

Balance Sheet and Other Details - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Jun. 27, 2015
Balance Sheet And Other Details Disclosure [Abstract]
Accounts receivable allowance	$ 0.7		$ 1.2
Inventory wrote-off	0.5
Depreciation expense	$ 11.7	$ 10.4

Balance Sheet and Other Detai43

Balance Sheet and Other Details - Schedule of Components of Inventories (Details) - USD ($) $ in Millions	Sep. 26, 2015	Jun. 27, 2015
Inventories [Abstract]
Finished goods	$ 51.3	$ 60.1
Work in process	23.2	23.4
Raw materials and purchased parts	28.4	16.2
Inventories	$ 102.9	$ 99.7

Balance Sheet and Other Detai44

Balance Sheet and Other Details - Schedule of Components of Prepayments and Other Current Assets (Details) - USD ($) $ in Millions	Sep. 26, 2015	Jun. 27, 2015
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Prepayments	$ 27.5	$ 20.4
Advances to contract manufacturers	9.4	9.5
Due from Viavi	4.8
Other current assets	10.4	16.2
Prepayments and other current assets	$ 52.1	$ 46.1

Balance Sheet and Other Detai45

Balance Sheet and Other Details - Schedule of Components of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Sep. 26, 2015	Jun. 27, 2015
Property Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 443.6	$ 416.2
Less: Accumulated depreciation	(302.1)	(273)
Property, plant and equipment, net	141.5	143.2
Land
Property Plant and Equipment [Line Items]
Property, plant and equipment, gross	5.9	5.9
Buildings and Improvements
Property Plant and Equipment [Line Items]
Property, plant and equipment, gross	28.7	28.6
Machinery and Equipment
Property Plant and Equipment [Line Items]
Property, plant and equipment, gross	332.3	326.4
Furniture and Fixtures and Software
Property Plant and Equipment [Line Items]
Property, plant and equipment, gross	30.9	8
Leasehold Improvements
Property Plant and Equipment [Line Items]
Property, plant and equipment, gross	29.2	20.5
Construction in Progress
Property Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 16.6	$ 26.8

Balance Sheet and Other Detai46

Balance Sheet and Other Details - Schedule of Components of Other Current Liabilities (Details) - USD ($) $ in Millions	Sep. 26, 2015	Jun. 27, 2015
Other Current Liabilities [Abstract]
Restructuring accrual and related charges	$ 5.6	$ 3.2
Warranty accrual	2.5	2.8
Others	2.6	5.4
Other current liabilities	$ 10.7	$ 11.4

Balance Sheet and Other Detai47

Balance Sheet and Other Details - Schedule of Components of Other Non-Current Liabilities (Details) - USD ($) $ in Millions	Sep. 26, 2015	Jun. 27, 2015
Other Non-Current Liabilities [Abstract]
Derivative liability	$ 7.5
Asset retirement obligation	2.2	$ 1.8
Pension and related accruals	2.6	2.1
Deferred rent	1.6	1.7
Restructuring accrual and related charges	0.5	1.7
Other non-current liabilities	1.9	2.5
Other non-current liabilities	$ 16.3	$ 9.8

Goodwill and Other Intangible48

Goodwill and Other Intangible Assets - Schedule of Changes in Goodwill (Details) $ in Millions	3 Months Ended
	Sep. 26, 2015USD ($)
Goodwill [Line Items]
Balance at the beginning of the period	$ 5.6
Currency translation and other adjustments	(0.3)
Balance at the end of the period	5.3
Commercial Lasers
Goodwill [Line Items]
Balance at the beginning of the period	5.6
Currency translation and other adjustments	(0.3)
Balance at the end of the period	$ 5.3

Goodwill and Other Intangible49

Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($)	3 Months Ended
	Sep. 26, 2015	Jun. 27, 2015	Sep. 27, 2014
Goodwill And Intangible Assets Disclosure [Abstract]
Impairment charges	$ 0	$ 0
Amortization expenses	$ 1,800,000		$ 2,000,000

Goodwill and Other Intangible50

Goodwill and Other Intangible Assets - Acquired Developed Technology and Other Intangibles (Details) - USD ($) $ in Millions	Sep. 26, 2015	Jun. 27, 2015
Finite Lived Intangible Assets [Line Items]
Gross carrying amount of finite lived intangibles	$ 112.6	$ 112.6
Accumulated Amortization	(92.6)	(90.8)
Net carrying amount of finite lived intangibles	20	21.8
Acquired Developed Technology
Finite Lived Intangible Assets [Line Items]
Gross carrying amount of finite lived intangibles	103.2	103.2
Accumulated Amortization	(84.6)	(82.2)
Net carrying amount of finite lived intangibles	18.6	21
Other
Finite Lived Intangible Assets [Line Items]
Gross carrying amount of finite lived intangibles	9.4	9.4
Accumulated Amortization	(8)	(8.6)
Net carrying amount of finite lived intangibles	$ 1.4	$ 0.8

Goodwill and Other Intangible51

Goodwill and Other Intangible Assets - Intangible Assets Amortization Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Finite Lived Intangible Assets [Line Items]
Amortization expenses	$ 1.8	$ 2
Cost of Sales
Finite Lived Intangible Assets [Line Items]
Amortization expenses	1.7	1.9
Operating Expense
Finite Lived Intangible Assets [Line Items]
Amortization expenses	$ 0.1	$ 0.1

Restructuring and Related Cha52

Restructuring and Related Charges - Additional Information (Details) $ in Millions	3 Months Ended
	Sep. 26, 2015USD ($)employee	Sep. 27, 2014USD ($)	Jun. 27, 2015USD ($)
Summary of Restructuring Plans [Line Items]
Restructuring and related charges accrual	$ 5.1		$ 4.9
Restructuring charges	0.9	$ 1.8
Restructuring charges	1	$ 1.8
Restructuring obligation, current	5.6		3.2
Restructuring obligation, non-current	0.5		1.7
Ottawa Lease
Summary of Restructuring Plans [Line Items]
Restructuring and related charges accrual	1		1.1
Restructuring charges	0.1
Other Current Liabilities
Summary of Restructuring Plans [Line Items]
Restructuring obligation, current	5.1		3.2
Other Current Liabilities | Ottawa Lease
Summary of Restructuring Plans [Line Items]
Restructuring obligation, current	0.5		0.5
Other Noncurrent Liabilities
Summary of Restructuring Plans [Line Items]
Restructuring obligation, non-current	0		1.7
Other Noncurrent Liabilities | Ottawa Lease
Summary of Restructuring Plans [Line Items]
Restructuring obligation, non-current	0.5		0.5
Separation Restructuring Plan
Summary of Restructuring Plans [Line Items]
Restructuring and related charges accrual	$ 5.1		$ 4.9
Number of employees expected to be reduced | employee	200
Restructuring charges	$ 0.9

Restructuring and Related Cha53

Restructuring and Related Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Summary of Restructuring Plans [Line Items]
Accrual balance at the beginning of the period	$ 4.9
Restructuring charges	1	$ 1.8
Accrual balance at the end of the period	5.1
Separation Restructuring Plan
Summary of Restructuring Plans [Line Items]
Accrual balance at the beginning of the period	4.9
Restructuring charges	0.9
Cash Settlements	(0.7)
Accrual balance at the end of the period	$ 5.1

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Millions	Aug. 01, 2015	Sep. 26, 2015	Sep. 27, 2014
Income Tax Disclosure [Abstract]
(Provision) benefit for income taxes		$ (0.3)	$ 0.6
Increase in gross tax basis	$ 715

Non Controlling Interest Rede55

Non Controlling Interest Redeemable Convertible Preferred Stock - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	Jul. 31, 2015	Sep. 26, 2015
Temporary Equity [Line Items]
Unrealized gain from change in fair value of derivative liability – redeemable convertible preferred stock		$ 2.2
Deemed dividend and cumulative amount payable		0.1
Series A Preferred Stock
Temporary Equity [Line Items]
Shares canceled during period (in shares)	4,195
Redeemable convertible preferred stock’s derivative equity component		9.7
Unrealized gain from change in fair value of derivative liability – redeemable convertible preferred stock		2.2
Redemption value of the redeemable convertible Series A preferred stock		$ 35.8
Conversion price as a percentage of weighted average price per share of common stock		125.00%
Regular-way trading days following the spin-off		5 days
Conversion price per common share		$ 24.63
Issuance value of preferred stock upon liquidation		$ 1,000
Annual dividend rate		2.50%
Deemed dividend and cumulative amount payable		$ 0.1
Series A Preferred Stock | March 31
Temporary Equity [Line Items]
Accrued dividends are payable date		Mar. 31, 2015
Series A Preferred Stock | June 30
Temporary Equity [Line Items]
Accrued dividends are payable date		Jun. 30, 2015
Series A Preferred Stock | September 30
Temporary Equity [Line Items]
Accrued dividends are payable date		Sep. 30, 2015
Series A Preferred Stock | December 31
Temporary Equity [Line Items]
Accrued dividends are payable date		Dec. 31, 2015
Series A Preferred Stock | Minimum
Temporary Equity [Line Items]
Convertible preferred stock, redemption period		5 years
Viavi Net Investment | Series A Preferred Stock
Temporary Equity [Line Items]
Shares issued during period (in shares)	40,000
Amada Holdings Co. | Series A Preferred Stock
Temporary Equity [Line Items]
Shares issued during period (in shares)	35,805

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Details) - USD ($)	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation capitalized to inventory (in dollars)	$ 1,000,000
Stock-based compensation cost (in dollars)	6,500,000	$ 6,900,000
Minimum statutory withholding taxes liability on the vested shares	2,900,000	3,200,000
Viavi
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation cost (in dollars)	$ 500,000	$ 2,000,000
Stock options and employee stock purchase plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awards granted (in shares)	0	0
Total intrinsic value of awards exercised (in dollars)	$ 100,000
Restricted stock units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awards granted (in shares)	1,600,000
Unrecognized stock-based compensation	$ 44,400,000
Estimated amortization period	2 years 4 months 24 days
Time Based R S Us
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awards granted (in shares)	1,600,000
Aggregate grant-date fair value (in dollars)	$ 32,000,000
Vesting period	3 years
Fair value assumptions, discount for postvesting restrictions	33.30%
Performance-based RSU’s
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation cost (in dollars)	$ 100,000
Awards granted (in shares)	41,000
Aggregate grant-date fair value (in dollars)	$ 800,000
Vesting period	3 years

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of the Impact on the Entity's Results of Operations of Recording Stock-Based Compensation by Function (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation cost (in dollars)	$ 6.5	$ 6.9
Cost of Sales
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation cost (in dollars)	1.2	1.4
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation cost (in dollars)	1.9	1.9
Selling, General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation cost (in dollars)	$ 3.4	$ 3.6

Stock-Based Compensation - Sc58

Stock-Based Compensation - Schedule of Changes in Outstanding Restricted Stock Units (Details)	3 Months Ended
	Sep. 26, 2015shares
Time Based R S Us
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at the beginning of the period (in shares)	1,500,000
Awards granted	1,600,000
Awards vested	(300,000)
Outstanding at the end of the period (in dollars per share)	2,800,000
Performance-based RSU’s
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at the beginning of the period (in shares)	200,000
Awards granted	41,000
Awards vested	(100,000)
Outstanding at the end of the period (in dollars per share)	100,000
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at the beginning of the period (in shares)	1,700,000
Awards granted	1,600,000
Awards vested	(400,000)
Outstanding at the end of the period (in dollars per share)	2,900,000

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Future Minimum Annual Lease Payments under Non-Cancellable Operating Leases (Details) $ in Millions	Sep. 26, 2015USD ($)
Future minimum operating lease payments [Abstract]
Remainder of 2016	$ 4.6
2,017	5.7
2,018	4.6
2,019	3
2,020	1.9
Thereafter	5.1
Total minimum operating lease payments	$ 24.9

Commitments and Contingencies60

Commitments and Contingencies - Additional Information (Details) $ in Millions	3 Months Ended
	Sep. 26, 2015USD ($)
Commitments And Contingencies [Line Items]
Lease commitments related to restructuring activities	$ 1
Legally-binding purchase commitment obligations	$ 151.8
Typical duration of supply agreements with single or limited source vendors	1 year
Minimum
Commitments And Contingencies [Line Items]
Warranty Term for most products	6 months
Maximum
Commitments And Contingencies [Line Items]
Warranty Term for most products	36 months

Commitments and Contingencies61

Commitments and Contingencies - Schedule of Changes in Entity's Warranty Reserve (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Changes in warranty reserve [Abstract]
Balance as of beginning of period	$ 2.8	$ 2.7
Provision for warranty	0.9	0.6
Utilization of reserve	(1.2)	(0.9)
Balance as of end of period	$ 2.5	$ 2.4

Operating Segments and Geogra62

Operating Segments and Geographic Information - Additional Information (Details)	3 Months Ended
	Sep. 26, 2015segmentregion	Sep. 27, 2014
Segment Reporting Information [Line Items]
Number of reportable segments (in segment) | segment	2
Number of geographic regions	3
Geographic Concentration Risk | Total Net Revenue | Areas Outside of US
Segment Reporting Information [Line Items]
Percentage of net revenue (as a percent)	83.80%	80.70%

Operating Segments and Geogra63

Operating Segments and Geographic Information - Schedule of Information on Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Net revenue:
Net revenue	$ 212.6	$ 219
Gross Profit	66.9	70.3
Optical Communications
Net revenue:
Net revenue	177.1	176.9
Commercial Lasers
Net revenue:
Net revenue	35.5	42.1
Operating Segments
Net revenue:
Gross Profit	69.8	74.1
Operating Segments | Optical Communications
Net revenue:
Gross Profit	55.6	52.8
Operating Segments | Commercial Lasers
Net revenue:
Gross Profit	14.2	21.3
Corporate
Net revenue:
Stock-based compensation	(1.2)	(1.4)
Amortization of intangibles	$ (1.7)	(1.9)
Other charges related to non-recurring activities		$ (0.5)

Operating Segments and Geogra64

Operating Segments and Geographic Information - Schedule of Products and Services Which Accounted for 10% or More of Total Net Revenue (Details) - Product Concentration Risk - Revenue	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Optical Communications
Products and Services Which Accounted for 10% or More of Total Net Revenue [Line Items]
Percentage of net revenue (as a percent)	83.30%	80.80%
Optical Communications | Telecom
Products and Services Which Accounted for 10% or More of Total Net Revenue [Line Items]
Percentage of net revenue (as a percent)	56.50%	61.90%
Optical Communications | Datacom
Products and Services Which Accounted for 10% or More of Total Net Revenue [Line Items]
Percentage of net revenue (as a percent)	11.70%	13.80%
Optical Communications | Consumer and Industrial
Products and Services Which Accounted for 10% or More of Total Net Revenue [Line Items]
Percentage of net revenue (as a percent)	15.10%	5.10%
Lasers
Products and Services Which Accounted for 10% or More of Total Net Revenue [Line Items]
Percentage of net revenue (as a percent)	16.70%	19.20%

Operating Segments and Geogra65

Operating Segments and Geographic Information - Schedule of Revenue by Geographical Region (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Net revenue:
Total net revenue	$ 212.6	$ 219
United States
Net revenue:
Total net revenue	$ 34.5	$ 42.4
United States | Geographic Concentration Risk | Total Net Revenue
Net revenue:
Percentage of net revenue (as a percent)	16.20%	19.30%
Mexico
Net revenue:
Total net revenue	$ 41.8	$ 26.5
Mexico | Geographic Concentration Risk | Total Net Revenue
Net revenue:
Percentage of net revenue (as a percent)	19.60%	12.10%
Other Americas
Net revenue:
Total net revenue	$ 7.8	$ 6.3
Other Americas | Geographic Concentration Risk | Total Net Revenue
Net revenue:
Percentage of net revenue (as a percent)	3.70%	2.90%
Total Americas
Net revenue:
Total net revenue	$ 84.1	$ 75.2
Total Americas | Geographic Concentration Risk | Total Net Revenue
Net revenue:
Percentage of net revenue (as a percent)	39.50%	34.30%
Hong Kong
Net revenue:
Total net revenue	$ 30.8	$ 28.7
Hong Kong | Geographic Concentration Risk | Total Net Revenue
Net revenue:
Percentage of net revenue (as a percent)	14.50%	13.10%
Japan
Net revenue:
Total net revenue	$ 25	$ 35.9
Japan | Geographic Concentration Risk | Total Net Revenue
Net revenue:
Percentage of net revenue (as a percent)	11.80%	16.40%
Other Asia-Pacific
Net revenue:
Total net revenue	$ 40	$ 41.1
Other Asia-Pacific | Geographic Concentration Risk | Total Net Revenue
Net revenue:
Percentage of net revenue (as a percent)	18.80%	18.80%
Total Asia-Pacific
Net revenue:
Total net revenue	$ 95.8	$ 105.7
Total Asia-Pacific | Geographic Concentration Risk | Total Net Revenue
Net revenue:
Percentage of net revenue (as a percent)	45.10%	48.30%
E M E A
Net revenue:
Total net revenue	$ 32.7	$ 38.1
E M E A | Geographic Concentration Risk | Total Net Revenue
Net revenue:
Percentage of net revenue (as a percent)	15.40%	17.40%