| Component: (Network and Table) | |
|---|---|
| Network | 2409402 - Disclosure - Warranty (Details) (http://www.finisar.com/role/WarrantyDetails) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001094739 (http://www.sec.gov/CIK) |
| Product Warranties Disclosures [Abstract] | Period [Axis] | |
|---|---|---|
2015-05-04 - 2016-05-01 | 2014-04-28 - 2015-05-03 | |
Product Warranties Disclosures [Abstract] | ||
Movement in Standard Product Warranty Accrual [Roll Forward] | ||
Beginning balance | 6,451,000 | 5,744,000 |
Additions during the period based on product sold | ||
Change in estimates | ( | ( |
Settlements and expirations | ( | ( |
Ending balance | 12,001,000 | 6,451,000 |