Leases - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jul. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities	$ 119,335
Finance Lease, Liability	$ 23,447
Finisar Corporation
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease assets		$ 29,000
Operating lease liabilities		29,000
ASU 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease assets		80,100
Operating lease liabilities		80,100
Finance lease assets		25,000
Finance Lease, Liability		$ 24,000