Quarterly report pursuant to Section 13 or 15(d)

Sales to Major Customers - Information Relating to Activity with Customers (Detail)

v2.4.0.8
Sales to Major Customers - Information Relating to Activity with Customers (Detail) (Panasonic [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 29, 2013
Jun. 30, 2012
Jun. 29, 2013
Jun. 30, 2012
Dec. 31, 2012
Panasonic [Member]
         
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]          
Percent of consolidated revenue 30.00% 32.00% 32.00% 37.00%  
Accounts receivable $ 11,218   $ 11,218   $ 17,412