Other Intangible Assets	12 Months Ended
Other Intangible Assets	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Other Intangible Assets	OTHER INTANGIBLE ASSETS In connection with our acquisition of Opnext, Inc. ("Opnext") on July 23, 2012, we recorded $16.4 million in other intangible assets, with estimated useful lives ranging from 1 year to 11 years. In connection with our sale of the industrial and consumer business of Oclaro Japan located in Komoro, Japan in fiscal year 2015, we transferred certain of our other intangible assets with a book value of $4.4 million to Ushio Opto Semiconductors, Inc. As of June 30, 2018, our other intangible assets, net is $0.1 million, which we expect to fully amortize during fiscal year 2019. Amortization of other intangible assets for the fiscal years ended June 30, 2018, July 1, 2017 and July 2, 2016, was $0.7 million $0.8 million and $1.0 million, respectively. Amortization is recorded as an operating expense within the consolidated statements of operations. During the fourth quarter of fiscal year 2016, 2017 and 2018, we reviewed our other intangible assets for impairment. We compared their carrying amounts to market prices or the future undiscounted cash flows the assets are expected to generate. We determined that the carrying value of the assets did not exceed the fair value based on market prices or future discounted cash flows. We did not record any impairment charges related to our other intangibles in fiscal year 2016, 2017 or 2018.

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.