XML 84 R38.htm IDEA: XBRL DOCUMENT v2.4.0.8
Additional Balance Sheet and Cash Flow Information (Narrative) (Detail) (USD $)
6 Months Ended
Jun. 29, 2014
Jun. 30, 2013
Supplemental Cash Flow Information [Abstract]    
Document Fiscal Year Focus 2014  
Gross unrealized gains (losses) $ (184,000) $ (996,000)
Gross unrealized gains (losses), net of taxes $ (116,000) $ (627,000)
Contractual maturities period of marketable securities, minimum (in months) 9 months  
Contractual maturities period of marketable securities, maximum (in months) 23 months