Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income - Changes in AOCI (Details)

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Accumulated Other Comprehensive Income - Changes in AOCI (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 27, 2014
Changes in Accumulated Other Comprehensive Income, by Component  
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance $ 2,591
Other comprehensive income (loss) before reclassifications (2,565)
Amounts reclassified from accumulated other comprehensive income (113)
Net current period other comprehensive income (loss) (2,678)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance (87)
Unrealized Gains and Losses on Available-for- Sale Securities [Member]
 
Changes in Accumulated Other Comprehensive Income, by Component  
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance (188)
Other comprehensive income (loss) before reclassifications (75)
Amounts reclassified from accumulated other comprehensive income (113)
Net current period other comprehensive income (loss) (188)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance (376)
Foreign Currency Items [Member]
 
Changes in Accumulated Other Comprehensive Income, by Component  
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance 2,779
Other comprehensive income (loss) before reclassifications (2,490)
Amounts reclassified from accumulated other comprehensive income 0
Net current period other comprehensive income (loss) (2,490)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance $ 289