Rendering

Component: (Network and Table)
Network
2425402 - Disclosure - Product Warranty (Details)
(http://www.esi.com/role/ProductWarrantyDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000726514 (http://www.sec.gov/CIK)
Product Warranties Disclosures [Abstract]Period [Axis]
2015-03-29 - 2016-04-02
2014-03-30 - 2015-03-28
2013-03-31 - 2014-03-29
Product Warranties Disclosures [Abstract]
 
 
 
Standard and Extended Product Warranty Accrual Beginning
3,342,000  
4,215,000  
5,411,000  
Standard and Extended Product Warranty Accrual, Decrease for Payments
7,781,000  
6,468,000  
7,178,000  
Standard and Extended Product Warranty Accrual, Increase for Warranties Issued
10,173,000  
5,595,000  
5,982,000  
Standard and Extended Product Warranty Accrual Ending
5,734,000  
 
3,342,000  
 
4,215,000